./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9fc434c98d81d50ebbaaf1f0c0ad7b0d03fbdae2db606436a34b66c07c286ced --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 17:03:03,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 17:03:03,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 17:03:03,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 17:03:03,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 17:03:03,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 17:03:03,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 17:03:03,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 17:03:03,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 17:03:03,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 17:03:03,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 17:03:03,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 17:03:03,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 17:03:03,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 17:03:03,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 17:03:03,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 17:03:03,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 17:03:03,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 17:03:03,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 17:03:03,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 17:03:03,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 17:03:03,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 17:03:03,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 17:03:03,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 17:03:03,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 17:03:03,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 17:03:03,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 17:03:03,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 17:03:03,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 17:03:03,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 17:03:03,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 17:03:03,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 17:03:03,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 17:03:03,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 17:03:03,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 17:03:03,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 17:03:03,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 17:03:03,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 17:03:03,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 17:03:03,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 17:03:03,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 17:03:03,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 17:03:03,332 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 17:03:03,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 17:03:03,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 17:03:03,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 17:03:03,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 17:03:03,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 17:03:03,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 17:03:03,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 17:03:03,335 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 17:03:03,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 17:03:03,336 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 17:03:03,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 17:03:03,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 17:03:03,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 17:03:03,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 17:03:03,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 17:03:03,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 17:03:03,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 17:03:03,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 17:03:03,337 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 17:03:03,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 17:03:03,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 17:03:03,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 17:03:03,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 17:03:03,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 17:03:03,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 17:03:03,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 17:03:03,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 17:03:03,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 17:03:03,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 17:03:03,339 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 17:03:03,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 17:03:03,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 17:03:03,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 17:03:03,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc434c98d81d50ebbaaf1f0c0ad7b0d03fbdae2db606436a34b66c07c286ced [2021-12-17 17:03:03,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 17:03:03,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 17:03:03,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 17:03:03,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 17:03:03,536 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 17:03:03,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c [2021-12-17 17:03:03,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f61dfdd79/ea521142618b463aad2c9f8b7d2f5fe4/FLAGd86e2ba2c [2021-12-17 17:03:04,215 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 17:03:04,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c [2021-12-17 17:03:04,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f61dfdd79/ea521142618b463aad2c9f8b7d2f5fe4/FLAGd86e2ba2c [2021-12-17 17:03:04,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f61dfdd79/ea521142618b463aad2c9f8b7d2f5fe4 [2021-12-17 17:03:04,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 17:03:04,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 17:03:04,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 17:03:04,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 17:03:04,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 17:03:04,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:03:04" (1/1) ... [2021-12-17 17:03:04,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2716046f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:04, skipping insertion in model container [2021-12-17 17:03:04,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:03:04" (1/1) ... [2021-12-17 17:03:04,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 17:03:04,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 17:03:05,346 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[22358,22371] [2021-12-17 17:03:05,375 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[28268,28281] [2021-12-17 17:03:05,386 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[29690,29703] [2021-12-17 17:03:05,396 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[30548,30561] [2021-12-17 17:03:05,412 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[32341,32354] [2021-12-17 17:03:05,421 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[33199,33212] [2021-12-17 17:03:05,434 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[34428,34441] [2021-12-17 17:03:05,447 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[37283,37296] [2021-12-17 17:03:05,452 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[38144,38157] [2021-12-17 17:03:05,460 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[39376,39389] [2021-12-17 17:03:05,476 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[41667,41680] [2021-12-17 17:03:05,490 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[46092,46105] [2021-12-17 17:03:05,493 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[46953,46966] [2021-12-17 17:03:05,497 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[48185,48198] [2021-12-17 17:03:05,505 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[50476,50489] [2021-12-17 17:03:05,516 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[54337,54350] [2021-12-17 17:03:05,544 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[61299,61312] [2021-12-17 17:03:05,551 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[62160,62173] [2021-12-17 17:03:05,557 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[63392,63405] [2021-12-17 17:03:05,573 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[65683,65696] [2021-12-17 17:03:05,590 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[69544,69557] [2021-12-17 17:03:05,609 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[75942,75955] [2021-12-17 17:03:05,643 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[87347,87360] [2021-12-17 17:03:05,647 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[88208,88221] [2021-12-17 17:03:05,651 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[89401,89414] [2021-12-17 17:03:05,662 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[91653,91666] [2021-12-17 17:03:05,678 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[95755,95768] [2021-12-17 17:03:05,708 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[103009,103022] [2021-12-17 17:03:05,744 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[115656,115669] [2021-12-17 17:03:05,817 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[137951,137964] [2021-12-17 17:03:05,821 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[138812,138825] [2021-12-17 17:03:05,826 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[140044,140057] [2021-12-17 17:03:05,834 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[142335,142348] [2021-12-17 17:03:05,851 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[146196,146209] [2021-12-17 17:03:05,884 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[152594,152607] [2021-12-17 17:03:05,925 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[163435,163448] [2021-12-17 17:03:05,988 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[182075,182088] [2021-12-17 17:03:06,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 17:03:06,899 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 17:03:06,994 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[22358,22371] [2021-12-17 17:03:07,017 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[28268,28281] [2021-12-17 17:03:07,021 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[29690,29703] [2021-12-17 17:03:07,025 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[30548,30561] [2021-12-17 17:03:07,030 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[32341,32354] [2021-12-17 17:03:07,034 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[33199,33212] [2021-12-17 17:03:07,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[34428,34441] [2021-12-17 17:03:07,046 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[37283,37296] [2021-12-17 17:03:07,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[38144,38157] [2021-12-17 17:03:07,053 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[39376,39389] [2021-12-17 17:03:07,059 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[41667,41680] [2021-12-17 17:03:07,082 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[46092,46105] [2021-12-17 17:03:07,088 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[46953,46966] [2021-12-17 17:03:07,092 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[48185,48198] [2021-12-17 17:03:07,100 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[50476,50489] [2021-12-17 17:03:07,112 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[54337,54350] [2021-12-17 17:03:07,129 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[61299,61312] [2021-12-17 17:03:07,133 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[62160,62173] [2021-12-17 17:03:07,136 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[63392,63405] [2021-12-17 17:03:07,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[65683,65696] [2021-12-17 17:03:07,151 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[69544,69557] [2021-12-17 17:03:07,179 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[75942,75955] [2021-12-17 17:03:07,201 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[87347,87360] [2021-12-17 17:03:07,205 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[88208,88221] [2021-12-17 17:03:07,209 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[89401,89414] [2021-12-17 17:03:07,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[91653,91666] [2021-12-17 17:03:07,225 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[95755,95768] [2021-12-17 17:03:07,244 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[103009,103022] [2021-12-17 17:03:07,271 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[115656,115669] [2021-12-17 17:03:07,316 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[137951,137964] [2021-12-17 17:03:07,320 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[138812,138825] [2021-12-17 17:03:07,323 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[140044,140057] [2021-12-17 17:03:07,329 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[142335,142348] [2021-12-17 17:03:07,338 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[146196,146209] [2021-12-17 17:03:07,352 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[152594,152607] [2021-12-17 17:03:07,373 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[163435,163448] [2021-12-17 17:03:07,406 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[182075,182088] [2021-12-17 17:03:08,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 17:03:08,164 INFO L208 MainTranslator]: Completed translation [2021-12-17 17:03:08,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08 WrapperNode [2021-12-17 17:03:08,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 17:03:08,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 17:03:08,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 17:03:08,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 17:03:08,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,471 INFO L137 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24256 [2021-12-17 17:03:08,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 17:03:08,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 17:03:08,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 17:03:08,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 17:03:08,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 17:03:08,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 17:03:08,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 17:03:08,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 17:03:08,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (1/1) ... [2021-12-17 17:03:08,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 17:03:08,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 17:03:08,916 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) [2021-12-17 17:03:08,951 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 [2021-12-17 17:03:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 17:03:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 17:03:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 17:03:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 17:03:09,486 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 17:03:09,487 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 17:03:15,130 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 17:03:15,156 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 17:03:15,156 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 17:03:15,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:03:15 BoogieIcfgContainer [2021-12-17 17:03:15,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 17:03:15,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 17:03:15,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 17:03:15,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 17:03:15,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:03:04" (1/3) ... [2021-12-17 17:03:15,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46914850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:03:15, skipping insertion in model container [2021-12-17 17:03:15,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:03:08" (2/3) ... [2021-12-17 17:03:15,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46914850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:03:15, skipping insertion in model container [2021-12-17 17:03:15,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:03:15" (3/3) ... [2021-12-17 17:03:15,168 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c [2021-12-17 17:03:15,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 17:03:15,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2021-12-17 17:03:15,226 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 17:03:15,232 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 [2021-12-17 17:03:15,232 INFO L340 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2021-12-17 17:03:15,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 3893 states, 3855 states have (on average 1.8658884565499352) internal successors, (7193), 3892 states have internal predecessors, (7193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:15,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:03:15,311 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:15,312 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:15,312 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:15,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:15,316 INFO L85 PathProgramCache]: Analyzing trace with hash 665140337, now seen corresponding path program 1 times [2021-12-17 17:03:15,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:15,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49848225] [2021-12-17 17:03:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:15,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:15,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:15,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:15,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49848225] [2021-12-17 17:03:15,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49848225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:15,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:15,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 17:03:15,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402837948] [2021-12-17 17:03:15,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:15,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 17:03:15,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:15,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 17:03:15,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 17:03:15,733 INFO L87 Difference]: Start difference. First operand has 3893 states, 3855 states have (on average 1.8658884565499352) internal successors, (7193), 3892 states have internal predecessors, (7193), 0 states have call successors, (0), 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 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:17,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:17,327 INFO L93 Difference]: Finished difference Result 5682 states and 10172 transitions. [2021-12-17 17:03:17,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 17:03:17,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:03:17,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:17,348 INFO L225 Difference]: With dead ends: 5682 [2021-12-17 17:03:17,348 INFO L226 Difference]: Without dead ends: 2890 [2021-12-17 17:03:17,355 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 [2021-12-17 17:03:17,357 INFO L933 BasicCegarLoop]: 3413 mSDtfsCounter, 15280 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15280 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:17,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15280 Valid, 3475 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 17:03:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-12-17 17:03:17,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 2890. [2021-12-17 17:03:17,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2853 states have (on average 1.3301787592008412) internal successors, (3795), 2889 states have internal predecessors, (3795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 3795 transitions. [2021-12-17 17:03:17,453 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 3795 transitions. Word has length 117 [2021-12-17 17:03:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:17,453 INFO L470 AbstractCegarLoop]: Abstraction has 2890 states and 3795 transitions. [2021-12-17 17:03:17,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 3795 transitions. [2021-12-17 17:03:17,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:03:17,459 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:17,459 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:17,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 17:03:17,460 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:17,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:17,461 INFO L85 PathProgramCache]: Analyzing trace with hash -603692616, now seen corresponding path program 1 times [2021-12-17 17:03:17,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:17,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45239135] [2021-12-17 17:03:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:17,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:17,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:17,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45239135] [2021-12-17 17:03:17,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45239135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:17,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:17,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 17:03:17,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551172118] [2021-12-17 17:03:17,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:17,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 17:03:17,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:17,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 17:03:17,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 17:03:17,640 INFO L87 Difference]: Start difference. First operand 2890 states and 3795 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:18,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:18,832 INFO L93 Difference]: Finished difference Result 4670 states and 6353 transitions. [2021-12-17 17:03:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 17:03:18,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:03:18,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:18,840 INFO L225 Difference]: With dead ends: 4670 [2021-12-17 17:03:18,840 INFO L226 Difference]: Without dead ends: 2426 [2021-12-17 17:03:18,843 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 [2021-12-17 17:03:18,843 INFO L933 BasicCegarLoop]: 1760 mSDtfsCounter, 9574 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9574 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:18,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9574 Valid, 1804 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 17:03:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2021-12-17 17:03:18,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2426. [2021-12-17 17:03:18,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 2389 states have (on average 1.367099204688154) internal successors, (3266), 2425 states have internal predecessors, (3266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:18,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3266 transitions. [2021-12-17 17:03:18,894 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3266 transitions. Word has length 118 [2021-12-17 17:03:18,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:18,894 INFO L470 AbstractCegarLoop]: Abstraction has 2426 states and 3266 transitions. [2021-12-17 17:03:18,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:18,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3266 transitions. [2021-12-17 17:03:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:03:18,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:18,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:18,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 17:03:18,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:18,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:18,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1489003718, now seen corresponding path program 1 times [2021-12-17 17:03:18,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:18,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704063374] [2021-12-17 17:03:18,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:18,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:19,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:19,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704063374] [2021-12-17 17:03:19,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704063374] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:19,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:19,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 17:03:19,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836102370] [2021-12-17 17:03:19,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:19,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 17:03:19,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:19,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 17:03:19,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 17:03:19,057 INFO L87 Difference]: Start difference. First operand 2426 states and 3266 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:20,030 INFO L93 Difference]: Finished difference Result 4206 states and 5823 transitions. [2021-12-17 17:03:20,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 17:03:20,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-17 17:03:20,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:20,037 INFO L225 Difference]: With dead ends: 4206 [2021-12-17 17:03:20,037 INFO L226 Difference]: Without dead ends: 2140 [2021-12-17 17:03:20,040 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 [2021-12-17 17:03:20,041 INFO L933 BasicCegarLoop]: 1648 mSDtfsCounter, 8748 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8748 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:20,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8748 Valid, 1660 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 17:03:20,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-12-17 17:03:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-12-17 17:03:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2103 states have (on average 1.4013314312886354) internal successors, (2947), 2139 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:20,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2947 transitions. [2021-12-17 17:03:20,088 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2947 transitions. Word has length 119 [2021-12-17 17:03:20,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:20,089 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2947 transitions. [2021-12-17 17:03:20,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2947 transitions. [2021-12-17 17:03:20,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 17:03:20,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:20,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:20,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 17:03:20,093 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:20,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:20,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1377889997, now seen corresponding path program 1 times [2021-12-17 17:03:20,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:20,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338566304] [2021-12-17 17:03:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:20,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:20,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:20,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338566304] [2021-12-17 17:03:20,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338566304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:20,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:20,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 17:03:20,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275410599] [2021-12-17 17:03:20,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:20,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 17:03:20,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 17:03:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 17:03:20,213 INFO L87 Difference]: Start difference. First operand 2140 states and 2947 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:21,702 INFO L93 Difference]: Finished difference Result 4934 states and 6932 transitions. [2021-12-17 17:03:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 17:03:21,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-12-17 17:03:21,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:21,711 INFO L225 Difference]: With dead ends: 4934 [2021-12-17 17:03:21,711 INFO L226 Difference]: Without dead ends: 3008 [2021-12-17 17:03:21,714 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 [2021-12-17 17:03:21,716 INFO L933 BasicCegarLoop]: 1549 mSDtfsCounter, 11124 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11124 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:21,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11124 Valid, 2338 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:03:21,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-12-17 17:03:21,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2882. [2021-12-17 17:03:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2845 states have (on average 1.4456942003514939) internal successors, (4113), 2881 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 4113 transitions. [2021-12-17 17:03:21,844 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 4113 transitions. Word has length 120 [2021-12-17 17:03:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:21,846 INFO L470 AbstractCegarLoop]: Abstraction has 2882 states and 4113 transitions. [2021-12-17 17:03:21,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:21,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 4113 transitions. [2021-12-17 17:03:21,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 17:03:21,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:21,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:21,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 17:03:21,851 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:21,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:21,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1955834809, now seen corresponding path program 1 times [2021-12-17 17:03:21,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:21,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026393939] [2021-12-17 17:03:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:21,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:21,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:21,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026393939] [2021-12-17 17:03:21,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026393939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:21,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:21,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 17:03:21,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120792437] [2021-12-17 17:03:21,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:21,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 17:03:21,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:21,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 17:03:21,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 17:03:21,970 INFO L87 Difference]: Start difference. First operand 2882 states and 4113 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:23,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:23,306 INFO L93 Difference]: Finished difference Result 5550 states and 7997 transitions. [2021-12-17 17:03:23,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 17:03:23,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-17 17:03:23,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:23,315 INFO L225 Difference]: With dead ends: 5550 [2021-12-17 17:03:23,315 INFO L226 Difference]: Without dead ends: 2842 [2021-12-17 17:03:23,318 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 [2021-12-17 17:03:23,323 INFO L933 BasicCegarLoop]: 1076 mSDtfsCounter, 7697 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7697 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:23,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7697 Valid, 1136 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 17:03:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2021-12-17 17:03:23,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2842. [2021-12-17 17:03:23,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.4484848484848485) internal successors, (4063), 2841 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 4063 transitions. [2021-12-17 17:03:23,409 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 4063 transitions. Word has length 121 [2021-12-17 17:03:23,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:23,409 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 4063 transitions. [2021-12-17 17:03:23,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 4063 transitions. [2021-12-17 17:03:23,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 17:03:23,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:23,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:23,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 17:03:23,414 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:23,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash 939334236, now seen corresponding path program 1 times [2021-12-17 17:03:23,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:23,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407281982] [2021-12-17 17:03:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:23,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:23,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:23,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407281982] [2021-12-17 17:03:23,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407281982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:23,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:23,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 17:03:23,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481602475] [2021-12-17 17:03:23,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:23,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 17:03:23,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:23,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 17:03:23,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 17:03:23,524 INFO L87 Difference]: Start difference. First operand 2842 states and 4063 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:24,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:24,618 INFO L93 Difference]: Finished difference Result 5510 states and 7945 transitions. [2021-12-17 17:03:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 17:03:24,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-17 17:03:24,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:24,638 INFO L225 Difference]: With dead ends: 5510 [2021-12-17 17:03:24,638 INFO L226 Difference]: Without dead ends: 2810 [2021-12-17 17:03:24,642 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 [2021-12-17 17:03:24,642 INFO L933 BasicCegarLoop]: 1289 mSDtfsCounter, 7764 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7764 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:24,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7764 Valid, 1341 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 17:03:24,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2021-12-17 17:03:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2810. [2021-12-17 17:03:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2773 states have (on average 1.4514965741074648) internal successors, (4025), 2809 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 4025 transitions. [2021-12-17 17:03:24,719 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 4025 transitions. Word has length 122 [2021-12-17 17:03:24,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:24,719 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 4025 transitions. [2021-12-17 17:03:24,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 4025 transitions. [2021-12-17 17:03:24,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 17:03:24,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:24,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:24,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 17:03:24,724 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:24,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:24,724 INFO L85 PathProgramCache]: Analyzing trace with hash 792377080, now seen corresponding path program 1 times [2021-12-17 17:03:24,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:24,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507050313] [2021-12-17 17:03:24,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:24,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:24,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:24,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:24,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507050313] [2021-12-17 17:03:24,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507050313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:24,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:24,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 17:03:24,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5672316] [2021-12-17 17:03:24,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:24,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 17:03:24,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:24,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 17:03:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 17:03:24,820 INFO L87 Difference]: Start difference. First operand 2810 states and 4025 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:25,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:25,723 INFO L93 Difference]: Finished difference Result 5478 states and 7905 transitions. [2021-12-17 17:03:25,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 17:03:25,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2021-12-17 17:03:25,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:25,730 INFO L225 Difference]: With dead ends: 5478 [2021-12-17 17:03:25,730 INFO L226 Difference]: Without dead ends: 2776 [2021-12-17 17:03:25,733 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 [2021-12-17 17:03:25,734 INFO L933 BasicCegarLoop]: 1458 mSDtfsCounter, 7875 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7875 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:25,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7875 Valid, 1478 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 17:03:25,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2021-12-17 17:03:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2776. [2021-12-17 17:03:25,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2776 states, 2739 states have (on average 1.4556407447973714) internal successors, (3987), 2775 states have internal predecessors, (3987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:25,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 3987 transitions. [2021-12-17 17:03:25,813 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 3987 transitions. Word has length 123 [2021-12-17 17:03:25,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:25,813 INFO L470 AbstractCegarLoop]: Abstraction has 2776 states and 3987 transitions. [2021-12-17 17:03:25,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:25,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 3987 transitions. [2021-12-17 17:03:25,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-17 17:03:25,818 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:25,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:25,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 17:03:25,819 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1117087425, now seen corresponding path program 1 times [2021-12-17 17:03:25,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:25,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004610762] [2021-12-17 17:03:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:25,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:25,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:25,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004610762] [2021-12-17 17:03:25,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004610762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:25,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:25,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 17:03:25,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383214845] [2021-12-17 17:03:25,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:25,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 17:03:25,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:25,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 17:03:25,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 17:03:25,905 INFO L87 Difference]: Start difference. First operand 2776 states and 3987 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:26,773 INFO L93 Difference]: Finished difference Result 5444 states and 7865 transitions. [2021-12-17 17:03:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 17:03:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-12-17 17:03:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:26,781 INFO L225 Difference]: With dead ends: 5444 [2021-12-17 17:03:26,781 INFO L226 Difference]: Without dead ends: 2762 [2021-12-17 17:03:26,784 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 [2021-12-17 17:03:26,784 INFO L933 BasicCegarLoop]: 1414 mSDtfsCounter, 7769 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7769 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:26,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7769 Valid, 1450 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 17:03:26,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2021-12-17 17:03:26,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2762. [2021-12-17 17:03:26,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.456880733944954) internal successors, (3970), 2761 states have internal predecessors, (3970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3970 transitions. [2021-12-17 17:03:26,854 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3970 transitions. Word has length 124 [2021-12-17 17:03:26,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:26,854 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3970 transitions. [2021-12-17 17:03:26,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3970 transitions. [2021-12-17 17:03:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 17:03:26,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:26,858 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:26,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 17:03:26,859 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:26,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:26,859 INFO L85 PathProgramCache]: Analyzing trace with hash 872951789, now seen corresponding path program 1 times [2021-12-17 17:03:26,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:26,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746877868] [2021-12-17 17:03:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:26,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:27,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:27,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746877868] [2021-12-17 17:03:27,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746877868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:27,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:27,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 17:03:27,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511853839] [2021-12-17 17:03:27,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:27,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 17:03:27,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:27,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 17:03:27,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-17 17:03:27,020 INFO L87 Difference]: Start difference. First operand 2762 states and 3970 transitions. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:29,789 INFO L93 Difference]: Finished difference Result 5346 states and 7685 transitions. [2021-12-17 17:03:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 17:03:29,790 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-17 17:03:29,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:29,812 INFO L225 Difference]: With dead ends: 5346 [2021-12-17 17:03:29,813 INFO L226 Difference]: Without dead ends: 4670 [2021-12-17 17:03:29,815 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 [2021-12-17 17:03:29,816 INFO L933 BasicCegarLoop]: 1475 mSDtfsCounter, 8868 mSDsluCounter, 6109 mSDsCounter, 0 mSdLazyCounter, 6257 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8868 SdHoareTripleChecker+Valid, 7584 SdHoareTripleChecker+Invalid, 6287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:29,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8868 Valid, 7584 Invalid, 6287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 6257 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:03:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4670 states. [2021-12-17 17:03:29,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4670 to 2762. [2021-12-17 17:03:29,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4561467889908257) internal successors, (3968), 2761 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3968 transitions. [2021-12-17 17:03:29,909 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3968 transitions. Word has length 125 [2021-12-17 17:03:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:29,909 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3968 transitions. [2021-12-17 17:03:29,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:29,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3968 transitions. [2021-12-17 17:03:29,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 17:03:29,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:29,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:29,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 17:03:29,914 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:29,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:29,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1281515480, now seen corresponding path program 1 times [2021-12-17 17:03:29,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:29,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502408086] [2021-12-17 17:03:29,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:29,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:30,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:30,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:30,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502408086] [2021-12-17 17:03:30,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502408086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:30,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:30,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 17:03:30,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843997177] [2021-12-17 17:03:30,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:30,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 17:03:30,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:30,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 17:03:30,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-17 17:03:30,092 INFO L87 Difference]: Start difference. First operand 2762 states and 3968 transitions. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:32,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:32,866 INFO L93 Difference]: Finished difference Result 4800 states and 6888 transitions. [2021-12-17 17:03:32,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 17:03:32,867 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-17 17:03:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:32,873 INFO L225 Difference]: With dead ends: 4800 [2021-12-17 17:03:32,873 INFO L226 Difference]: Without dead ends: 4562 [2021-12-17 17:03:32,874 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 [2021-12-17 17:03:32,874 INFO L933 BasicCegarLoop]: 1502 mSDtfsCounter, 11372 mSDsluCounter, 6384 mSDsCounter, 0 mSdLazyCounter, 6607 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11372 SdHoareTripleChecker+Valid, 7886 SdHoareTripleChecker+Invalid, 6813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 6607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:32,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11372 Valid, 7886 Invalid, 6813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 6607 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:03:32,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4562 states. [2021-12-17 17:03:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4562 to 2762. [2021-12-17 17:03:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4554128440366974) internal successors, (3966), 2761 states have internal predecessors, (3966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3966 transitions. [2021-12-17 17:03:32,972 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3966 transitions. Word has length 125 [2021-12-17 17:03:32,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:32,972 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3966 transitions. [2021-12-17 17:03:32,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3966 transitions. [2021-12-17 17:03:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 17:03:32,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:32,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:32,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 17:03:32,976 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:32,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:32,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1133942878, now seen corresponding path program 1 times [2021-12-17 17:03:32,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:32,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41907483] [2021-12-17 17:03:32,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:32,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:33,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:33,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41907483] [2021-12-17 17:03:33,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41907483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:33,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:33,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 17:03:33,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596580269] [2021-12-17 17:03:33,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:33,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 17:03:33,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:33,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 17:03:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-17 17:03:33,123 INFO L87 Difference]: Start difference. First operand 2762 states and 3966 transitions. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:36,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:36,177 INFO L93 Difference]: Finished difference Result 4914 states and 7059 transitions. [2021-12-17 17:03:36,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 17:03:36,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-17 17:03:36,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:36,185 INFO L225 Difference]: With dead ends: 4914 [2021-12-17 17:03:36,185 INFO L226 Difference]: Without dead ends: 4610 [2021-12-17 17:03:36,187 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 [2021-12-17 17:03:36,187 INFO L933 BasicCegarLoop]: 1518 mSDtfsCounter, 12806 mSDsluCounter, 7913 mSDsCounter, 0 mSdLazyCounter, 7835 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12806 SdHoareTripleChecker+Valid, 9431 SdHoareTripleChecker+Invalid, 7955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 7835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:36,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12806 Valid, 9431 Invalid, 7955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 7835 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:03:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2021-12-17 17:03:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 2762. [2021-12-17 17:03:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4546788990825688) internal successors, (3964), 2761 states have internal predecessors, (3964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3964 transitions. [2021-12-17 17:03:36,334 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3964 transitions. Word has length 125 [2021-12-17 17:03:36,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:36,334 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3964 transitions. [2021-12-17 17:03:36,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3964 transitions. [2021-12-17 17:03:36,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 17:03:36,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:36,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:36,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 17:03:36,338 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:36,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:36,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1158693058, now seen corresponding path program 1 times [2021-12-17 17:03:36,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:36,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208798683] [2021-12-17 17:03:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:36,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:36,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:36,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208798683] [2021-12-17 17:03:36,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208798683] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:36,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:36,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 17:03:36,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680906696] [2021-12-17 17:03:36,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:36,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 17:03:36,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:36,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 17:03:36,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-17 17:03:36,483 INFO L87 Difference]: Start difference. First operand 2762 states and 3964 transitions. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:39,449 INFO L93 Difference]: Finished difference Result 4898 states and 7038 transitions. [2021-12-17 17:03:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 17:03:39,449 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-17 17:03:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:39,456 INFO L225 Difference]: With dead ends: 4898 [2021-12-17 17:03:39,457 INFO L226 Difference]: Without dead ends: 4610 [2021-12-17 17:03:39,458 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 [2021-12-17 17:03:39,459 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 7213 mSDsluCounter, 7950 mSDsCounter, 0 mSdLazyCounter, 7837 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7213 SdHoareTripleChecker+Valid, 9472 SdHoareTripleChecker+Invalid, 7903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 7837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:39,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7213 Valid, 9472 Invalid, 7903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 7837 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:03:39,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2021-12-17 17:03:39,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 2762. [2021-12-17 17:03:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4539449541284404) internal successors, (3962), 2761 states have internal predecessors, (3962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:39,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3962 transitions. [2021-12-17 17:03:39,598 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3962 transitions. Word has length 125 [2021-12-17 17:03:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:39,599 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3962 transitions. [2021-12-17 17:03:39,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:39,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3962 transitions. [2021-12-17 17:03:39,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 17:03:39,602 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:39,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:39,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 17:03:39,602 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:39,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:39,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1551981936, now seen corresponding path program 1 times [2021-12-17 17:03:39,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:39,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215140733] [2021-12-17 17:03:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:39,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:39,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:39,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215140733] [2021-12-17 17:03:39,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215140733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:39,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:39,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 17:03:39,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500371052] [2021-12-17 17:03:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:39,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 17:03:39,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:39,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 17:03:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-17 17:03:39,728 INFO L87 Difference]: Start difference. First operand 2762 states and 3962 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:41,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:41,733 INFO L93 Difference]: Finished difference Result 4587 states and 6329 transitions. [2021-12-17 17:03:41,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 17:03:41,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-17 17:03:41,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:41,740 INFO L225 Difference]: With dead ends: 4587 [2021-12-17 17:03:41,740 INFO L226 Difference]: Without dead ends: 3480 [2021-12-17 17:03:41,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-12-17 17:03:41,742 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 10724 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 3989 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10724 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 3989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:41,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10724 Valid, 3506 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 3989 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:03:41,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2021-12-17 17:03:41,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 2762. [2021-12-17 17:03:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.453577981651376) internal successors, (3961), 2761 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:41,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3961 transitions. [2021-12-17 17:03:41,860 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3961 transitions. Word has length 125 [2021-12-17 17:03:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:41,860 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3961 transitions. [2021-12-17 17:03:41,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:41,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3961 transitions. [2021-12-17 17:03:41,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 17:03:41,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:41,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:41,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 17:03:41,863 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:41,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:41,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2063190834, now seen corresponding path program 1 times [2021-12-17 17:03:41,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:41,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408625876] [2021-12-17 17:03:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:41,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:42,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:42,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408625876] [2021-12-17 17:03:42,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408625876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:42,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:42,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:03:42,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479259347] [2021-12-17 17:03:42,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:42,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:03:42,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:42,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:03:42,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:03:42,006 INFO L87 Difference]: Start difference. First operand 2762 states and 3961 transitions. Second operand has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:45,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:45,277 INFO L93 Difference]: Finished difference Result 4845 states and 6891 transitions. [2021-12-17 17:03:45,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 17:03:45,278 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-17 17:03:45,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:45,284 INFO L225 Difference]: With dead ends: 4845 [2021-12-17 17:03:45,284 INFO L226 Difference]: Without dead ends: 4643 [2021-12-17 17:03:45,285 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 [2021-12-17 17:03:45,286 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 12774 mSDsluCounter, 7280 mSDsCounter, 0 mSdLazyCounter, 7948 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12774 SdHoareTripleChecker+Valid, 8770 SdHoareTripleChecker+Invalid, 8348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 7948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:45,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12774 Valid, 8770 Invalid, 8348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 7948 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:03:45,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4643 states. [2021-12-17 17:03:45,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4643 to 2787. [2021-12-17 17:03:45,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2750 states have (on average 1.453818181818182) internal successors, (3998), 2786 states have internal predecessors, (3998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3998 transitions. [2021-12-17 17:03:45,417 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3998 transitions. Word has length 125 [2021-12-17 17:03:45,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:45,418 INFO L470 AbstractCegarLoop]: Abstraction has 2787 states and 3998 transitions. [2021-12-17 17:03:45,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:45,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3998 transitions. [2021-12-17 17:03:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 17:03:45,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:45,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:45,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 17:03:45,421 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:45,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:45,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2108954040, now seen corresponding path program 1 times [2021-12-17 17:03:45,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:45,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474231304] [2021-12-17 17:03:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:45,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:45,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:45,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474231304] [2021-12-17 17:03:45,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474231304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:45,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:45,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:45,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375970680] [2021-12-17 17:03:45,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:45,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:45,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:45,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:45,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:45,564 INFO L87 Difference]: Start difference. First operand 2787 states and 3998 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:47,983 INFO L93 Difference]: Finished difference Result 3658 states and 5270 transitions. [2021-12-17 17:03:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:47,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-17 17:03:47,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:47,987 INFO L225 Difference]: With dead ends: 3658 [2021-12-17 17:03:47,987 INFO L226 Difference]: Without dead ends: 3055 [2021-12-17 17:03:47,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:47,989 INFO L933 BasicCegarLoop]: 1455 mSDtfsCounter, 8374 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 6164 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8374 SdHoareTripleChecker+Valid, 7555 SdHoareTripleChecker+Invalid, 6191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:47,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8374 Valid, 7555 Invalid, 6191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 6164 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:03:47,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2021-12-17 17:03:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2762. [2021-12-17 17:03:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.453211009174312) internal successors, (3960), 2761 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3960 transitions. [2021-12-17 17:03:48,115 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3960 transitions. Word has length 125 [2021-12-17 17:03:48,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:48,115 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3960 transitions. [2021-12-17 17:03:48,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3960 transitions. [2021-12-17 17:03:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 17:03:48,117 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:48,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:48,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 17:03:48,118 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:48,118 INFO L85 PathProgramCache]: Analyzing trace with hash 871478774, now seen corresponding path program 1 times [2021-12-17 17:03:48,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:48,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234122437] [2021-12-17 17:03:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:48,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:48,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:48,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:48,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234122437] [2021-12-17 17:03:48,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234122437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:48,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:48,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:48,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652892630] [2021-12-17 17:03:48,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:48,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:48,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:48,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:48,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:48,224 INFO L87 Difference]: Start difference. First operand 2762 states and 3960 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:50,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:50,733 INFO L93 Difference]: Finished difference Result 4785 states and 6854 transitions. [2021-12-17 17:03:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:50,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-17 17:03:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:50,739 INFO L225 Difference]: With dead ends: 4785 [2021-12-17 17:03:50,740 INFO L226 Difference]: Without dead ends: 4570 [2021-12-17 17:03:50,742 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 [2021-12-17 17:03:50,742 INFO L933 BasicCegarLoop]: 1578 mSDtfsCounter, 14544 mSDsluCounter, 5258 mSDsCounter, 0 mSdLazyCounter, 5783 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14544 SdHoareTripleChecker+Valid, 6836 SdHoareTripleChecker+Invalid, 6035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 5783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:50,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14544 Valid, 6836 Invalid, 6035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 5783 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:03:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-12-17 17:03:50,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 2762. [2021-12-17 17:03:50,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4528440366972477) internal successors, (3959), 2761 states have internal predecessors, (3959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3959 transitions. [2021-12-17 17:03:50,906 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3959 transitions. Word has length 125 [2021-12-17 17:03:50,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:50,907 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3959 transitions. [2021-12-17 17:03:50,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3959 transitions. [2021-12-17 17:03:50,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:03:50,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:50,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:50,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 17:03:50,911 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:50,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1393816537, now seen corresponding path program 1 times [2021-12-17 17:03:50,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:50,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585010294] [2021-12-17 17:03:50,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:50,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:51,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:51,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585010294] [2021-12-17 17:03:51,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585010294] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:51,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:51,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:51,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331319022] [2021-12-17 17:03:51,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:51,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:51,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:51,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:51,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:51,020 INFO L87 Difference]: Start difference. First operand 2762 states and 3959 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:53,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:53,471 INFO L93 Difference]: Finished difference Result 4858 states and 6970 transitions. [2021-12-17 17:03:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:53,471 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:03:53,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:53,476 INFO L225 Difference]: With dead ends: 4858 [2021-12-17 17:03:53,476 INFO L226 Difference]: Without dead ends: 4618 [2021-12-17 17:03:53,477 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 [2021-12-17 17:03:53,478 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 12544 mSDsluCounter, 5114 mSDsCounter, 0 mSdLazyCounter, 5505 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12544 SdHoareTripleChecker+Valid, 6636 SdHoareTripleChecker+Invalid, 5626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 5505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:53,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12544 Valid, 6636 Invalid, 5626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 5505 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 17:03:53,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4618 states. [2021-12-17 17:03:53,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4618 to 2762. [2021-12-17 17:03:53,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4524770642201834) internal successors, (3958), 2761 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3958 transitions. [2021-12-17 17:03:53,622 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3958 transitions. Word has length 127 [2021-12-17 17:03:53,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:53,622 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3958 transitions. [2021-12-17 17:03:53,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:53,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3958 transitions. [2021-12-17 17:03:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:03:53,625 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:53,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:53,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 17:03:53,626 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:53,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:53,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1270994115, now seen corresponding path program 1 times [2021-12-17 17:03:53,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:53,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338258108] [2021-12-17 17:03:53,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:53,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:53,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:53,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:53,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338258108] [2021-12-17 17:03:53,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338258108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:53,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:53,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:53,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578148944] [2021-12-17 17:03:53,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:53,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:53,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:53,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:53,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:53,729 INFO L87 Difference]: Start difference. First operand 2762 states and 3958 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:56,253 INFO L93 Difference]: Finished difference Result 4676 states and 6666 transitions. [2021-12-17 17:03:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:56,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:03:56,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:56,258 INFO L225 Difference]: With dead ends: 4676 [2021-12-17 17:03:56,258 INFO L226 Difference]: Without dead ends: 4474 [2021-12-17 17:03:56,259 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 [2021-12-17 17:03:56,259 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 7077 mSDsluCounter, 4936 mSDsCounter, 0 mSdLazyCounter, 5591 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7077 SdHoareTripleChecker+Valid, 6446 SdHoareTripleChecker+Invalid, 5824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 5591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:56,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7077 Valid, 6446 Invalid, 5824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 5591 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:03:56,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2021-12-17 17:03:56,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 2762. [2021-12-17 17:03:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4521100917431193) internal successors, (3957), 2761 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3957 transitions. [2021-12-17 17:03:56,402 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3957 transitions. Word has length 127 [2021-12-17 17:03:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:56,403 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3957 transitions. [2021-12-17 17:03:56,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3957 transitions. [2021-12-17 17:03:56,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:03:56,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:56,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:56,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 17:03:56,407 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:03:56,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:56,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1017360051, now seen corresponding path program 1 times [2021-12-17 17:03:56,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:56,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836816995] [2021-12-17 17:03:56,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:56,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:56,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:56,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836816995] [2021-12-17 17:03:56,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836816995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:56,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:56,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:03:56,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693494539] [2021-12-17 17:03:56,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:56,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:03:56,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:56,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:03:56,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:03:56,584 INFO L87 Difference]: Start difference. First operand 2762 states and 3957 transitions. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:01,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:01,652 INFO L93 Difference]: Finished difference Result 7040 states and 10161 transitions. [2021-12-17 17:04:01,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:04:01,653 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:04:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:01,660 INFO L225 Difference]: With dead ends: 7040 [2021-12-17 17:04:01,660 INFO L226 Difference]: Without dead ends: 6628 [2021-12-17 17:04:01,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:04:01,662 INFO L933 BasicCegarLoop]: 2233 mSDtfsCounter, 19301 mSDsluCounter, 9506 mSDsCounter, 0 mSdLazyCounter, 9673 mSolverCounterSat, 1183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19301 SdHoareTripleChecker+Valid, 11739 SdHoareTripleChecker+Invalid, 10856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 9673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:01,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19301 Valid, 11739 Invalid, 10856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1183 Valid, 9673 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-17 17:04:01,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6628 states. [2021-12-17 17:04:01,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6628 to 2766. [2021-12-17 17:04:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4514474166361304) internal successors, (3961), 2765 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3961 transitions. [2021-12-17 17:04:01,857 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3961 transitions. Word has length 127 [2021-12-17 17:04:01,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:01,857 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3961 transitions. [2021-12-17 17:04:01,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:01,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3961 transitions. [2021-12-17 17:04:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:04:01,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:01,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:01,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 17:04:01,860 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:01,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash -404587771, now seen corresponding path program 1 times [2021-12-17 17:04:01,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:01,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671590126] [2021-12-17 17:04:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:01,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:01,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:01,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671590126] [2021-12-17 17:04:01,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671590126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:01,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:01,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:01,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331778491] [2021-12-17 17:04:01,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:01,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:01,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:01,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:01,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:01,966 INFO L87 Difference]: Start difference. First operand 2766 states and 3961 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:04,542 INFO L93 Difference]: Finished difference Result 4680 states and 6668 transitions. [2021-12-17 17:04:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:04,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:04:04,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:04,547 INFO L225 Difference]: With dead ends: 4680 [2021-12-17 17:04:04,547 INFO L226 Difference]: Without dead ends: 4478 [2021-12-17 17:04:04,548 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 [2021-12-17 17:04:04,549 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 7076 mSDsluCounter, 4936 mSDsCounter, 0 mSdLazyCounter, 5586 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7076 SdHoareTripleChecker+Valid, 6446 SdHoareTripleChecker+Invalid, 5819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 5586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:04,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7076 Valid, 6446 Invalid, 5819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 5586 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:04:04,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2021-12-17 17:04:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 2766. [2021-12-17 17:04:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.451080982044705) internal successors, (3960), 2765 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:04,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3960 transitions. [2021-12-17 17:04:04,722 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3960 transitions. Word has length 127 [2021-12-17 17:04:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:04,722 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3960 transitions. [2021-12-17 17:04:04,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:04,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3960 transitions. [2021-12-17 17:04:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:04:04,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:04,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:04,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 17:04:04,725 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:04,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:04,725 INFO L85 PathProgramCache]: Analyzing trace with hash -533445571, now seen corresponding path program 1 times [2021-12-17 17:04:04,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:04,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135441540] [2021-12-17 17:04:04,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:04,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:04,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:04,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135441540] [2021-12-17 17:04:04,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135441540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:04,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:04,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:04,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189177459] [2021-12-17 17:04:04,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:04,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:04,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:04,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:04,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:04,825 INFO L87 Difference]: Start difference. First operand 2766 states and 3960 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:07,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:07,375 INFO L93 Difference]: Finished difference Result 4862 states and 6967 transitions. [2021-12-17 17:04:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:07,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:04:07,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:07,380 INFO L225 Difference]: With dead ends: 4862 [2021-12-17 17:04:07,380 INFO L226 Difference]: Without dead ends: 4622 [2021-12-17 17:04:07,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:07,382 INFO L933 BasicCegarLoop]: 1451 mSDtfsCounter, 11867 mSDsluCounter, 4904 mSDsCounter, 0 mSdLazyCounter, 5271 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11867 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 5377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 5271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:07,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11867 Valid, 6355 Invalid, 5377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 5271 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 17:04:07,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2021-12-17 17:04:07,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2766. [2021-12-17 17:04:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4507145474532797) internal successors, (3959), 2765 states have internal predecessors, (3959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3959 transitions. [2021-12-17 17:04:07,555 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3959 transitions. Word has length 127 [2021-12-17 17:04:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:07,555 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3959 transitions. [2021-12-17 17:04:07,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3959 transitions. [2021-12-17 17:04:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:04:07,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:07,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:07,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 17:04:07,558 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:07,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:07,559 INFO L85 PathProgramCache]: Analyzing trace with hash -369681398, now seen corresponding path program 1 times [2021-12-17 17:04:07,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:07,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041132437] [2021-12-17 17:04:07,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:07,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:07,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:07,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:07,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041132437] [2021-12-17 17:04:07,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041132437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:07,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:07,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:07,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345309826] [2021-12-17 17:04:07,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:07,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:07,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:07,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:07,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:07,695 INFO L87 Difference]: Start difference. First operand 2766 states and 3959 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:10,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:10,788 INFO L93 Difference]: Finished difference Result 5054 states and 7262 transitions. [2021-12-17 17:04:10,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:10,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:04:10,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:10,794 INFO L225 Difference]: With dead ends: 5054 [2021-12-17 17:04:10,794 INFO L226 Difference]: Without dead ends: 4678 [2021-12-17 17:04:10,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:10,796 INFO L933 BasicCegarLoop]: 1608 mSDtfsCounter, 13095 mSDsluCounter, 6960 mSDsCounter, 0 mSdLazyCounter, 6907 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13095 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 6946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 6907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:10,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13095 Valid, 8568 Invalid, 6946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 6907 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:04:10,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2021-12-17 17:04:10,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 2766. [2021-12-17 17:04:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.450348112861854) internal successors, (3958), 2765 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:11,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3958 transitions. [2021-12-17 17:04:11,002 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3958 transitions. Word has length 127 [2021-12-17 17:04:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:11,003 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3958 transitions. [2021-12-17 17:04:11,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:11,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3958 transitions. [2021-12-17 17:04:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:04:11,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:11,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:11,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 17:04:11,006 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:11,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash 101802033, now seen corresponding path program 1 times [2021-12-17 17:04:11,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:11,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282714027] [2021-12-17 17:04:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:11,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:11,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:11,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:11,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282714027] [2021-12-17 17:04:11,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282714027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:11,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:11,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:11,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91919972] [2021-12-17 17:04:11,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:11,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:11,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:11,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:11,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:11,122 INFO L87 Difference]: Start difference. First operand 2766 states and 3958 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:13,818 INFO L93 Difference]: Finished difference Result 4855 states and 6959 transitions. [2021-12-17 17:04:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:04:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:13,852 INFO L225 Difference]: With dead ends: 4855 [2021-12-17 17:04:13,853 INFO L226 Difference]: Without dead ends: 4622 [2021-12-17 17:04:13,854 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 [2021-12-17 17:04:13,854 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 11257 mSDsluCounter, 5101 mSDsCounter, 0 mSdLazyCounter, 5484 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11257 SdHoareTripleChecker+Valid, 6623 SdHoareTripleChecker+Invalid, 5587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 5484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:13,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11257 Valid, 6623 Invalid, 5587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 5484 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:04:13,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2021-12-17 17:04:14,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2766. [2021-12-17 17:04:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4499816782704287) internal successors, (3957), 2765 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:14,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3957 transitions. [2021-12-17 17:04:14,046 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3957 transitions. Word has length 127 [2021-12-17 17:04:14,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:14,046 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3957 transitions. [2021-12-17 17:04:14,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:14,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3957 transitions. [2021-12-17 17:04:14,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:04:14,049 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:14,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:14,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 17:04:14,049 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:14,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:14,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1913593849, now seen corresponding path program 1 times [2021-12-17 17:04:14,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:14,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970639697] [2021-12-17 17:04:14,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:14,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:14,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:14,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970639697] [2021-12-17 17:04:14,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970639697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:14,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:14,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:14,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826087507] [2021-12-17 17:04:14,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:14,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:14,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:14,182 INFO L87 Difference]: Start difference. First operand 2766 states and 3957 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:17,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:17,148 INFO L93 Difference]: Finished difference Result 4686 states and 6671 transitions. [2021-12-17 17:04:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:17,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:04:17,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:17,154 INFO L225 Difference]: With dead ends: 4686 [2021-12-17 17:04:17,154 INFO L226 Difference]: Without dead ends: 4478 [2021-12-17 17:04:17,155 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 [2021-12-17 17:04:17,156 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 7060 mSDsluCounter, 4938 mSDsCounter, 0 mSdLazyCounter, 5571 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7060 SdHoareTripleChecker+Valid, 6448 SdHoareTripleChecker+Invalid, 5804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 5571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:17,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7060 Valid, 6448 Invalid, 5804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 5571 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:04:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2021-12-17 17:04:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 2766. [2021-12-17 17:04:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.449248809087578) internal successors, (3955), 2765 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3955 transitions. [2021-12-17 17:04:17,353 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3955 transitions. Word has length 127 [2021-12-17 17:04:17,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:17,354 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3955 transitions. [2021-12-17 17:04:17,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:17,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3955 transitions. [2021-12-17 17:04:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 17:04:17,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:17,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:17,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 17:04:17,357 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:17,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:17,358 INFO L85 PathProgramCache]: Analyzing trace with hash -582969139, now seen corresponding path program 1 times [2021-12-17 17:04:17,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:17,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798061871] [2021-12-17 17:04:17,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:17,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:17,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:17,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:17,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798061871] [2021-12-17 17:04:17,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798061871] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:17,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:17,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:17,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866982150] [2021-12-17 17:04:17,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:17,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:17,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:17,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:17,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:17,474 INFO L87 Difference]: Start difference. First operand 2766 states and 3955 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:20,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:20,664 INFO L93 Difference]: Finished difference Result 5270 states and 7564 transitions. [2021-12-17 17:04:20,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:20,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-17 17:04:20,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:20,670 INFO L225 Difference]: With dead ends: 5270 [2021-12-17 17:04:20,670 INFO L226 Difference]: Without dead ends: 4678 [2021-12-17 17:04:20,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:20,671 INFO L933 BasicCegarLoop]: 1692 mSDtfsCounter, 12541 mSDsluCounter, 7204 mSDsCounter, 0 mSdLazyCounter, 7140 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12541 SdHoareTripleChecker+Valid, 8896 SdHoareTripleChecker+Invalid, 7177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:20,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12541 Valid, 8896 Invalid, 7177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 7140 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:04:20,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2021-12-17 17:04:20,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 2766. [2021-12-17 17:04:20,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.448515939904727) internal successors, (3953), 2765 states have internal predecessors, (3953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3953 transitions. [2021-12-17 17:04:20,875 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3953 transitions. Word has length 127 [2021-12-17 17:04:20,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:20,875 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3953 transitions. [2021-12-17 17:04:20,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3953 transitions. [2021-12-17 17:04:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-17 17:04:20,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:20,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:20,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-17 17:04:20,878 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash -955499850, now seen corresponding path program 1 times [2021-12-17 17:04:20,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:20,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403901392] [2021-12-17 17:04:20,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:20,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:20,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:20,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403901392] [2021-12-17 17:04:20,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403901392] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:20,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:20,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:20,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18368635] [2021-12-17 17:04:20,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:20,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:20,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:20,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:20,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:20,978 INFO L87 Difference]: Start difference. First operand 2766 states and 3953 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 8 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:23,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:23,759 INFO L93 Difference]: Finished difference Result 5090 states and 7295 transitions. [2021-12-17 17:04:23,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:23,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 8 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2021-12-17 17:04:23,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:23,765 INFO L225 Difference]: With dead ends: 5090 [2021-12-17 17:04:23,765 INFO L226 Difference]: Without dead ends: 4678 [2021-12-17 17:04:23,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:23,766 INFO L933 BasicCegarLoop]: 1939 mSDtfsCounter, 7009 mSDsluCounter, 5677 mSDsCounter, 0 mSdLazyCounter, 6214 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7009 SdHoareTripleChecker+Valid, 7616 SdHoareTripleChecker+Invalid, 6238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:23,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7009 Valid, 7616 Invalid, 6238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6214 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:04:23,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2021-12-17 17:04:23,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 2762. [2021-12-17 17:04:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4488073394495413) internal successors, (3948), 2761 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3948 transitions. [2021-12-17 17:04:24,003 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3948 transitions. Word has length 128 [2021-12-17 17:04:24,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:24,003 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3948 transitions. [2021-12-17 17:04:24,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 8 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:24,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3948 transitions. [2021-12-17 17:04:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:24,006 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:24,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:24,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 17:04:24,006 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:24,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:24,007 INFO L85 PathProgramCache]: Analyzing trace with hash -897534328, now seen corresponding path program 1 times [2021-12-17 17:04:24,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:24,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184879600] [2021-12-17 17:04:24,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:24,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:24,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:24,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:24,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184879600] [2021-12-17 17:04:24,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184879600] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:24,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:24,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:24,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094894835] [2021-12-17 17:04:24,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:24,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:24,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:24,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:24,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:24,105 INFO L87 Difference]: Start difference. First operand 2762 states and 3948 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:26,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:26,760 INFO L93 Difference]: Finished difference Result 4676 states and 6652 transitions. [2021-12-17 17:04:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:26,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:26,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:26,764 INFO L225 Difference]: With dead ends: 4676 [2021-12-17 17:04:26,764 INFO L226 Difference]: Without dead ends: 4474 [2021-12-17 17:04:26,765 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 [2021-12-17 17:04:26,766 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 7022 mSDsluCounter, 4939 mSDsCounter, 0 mSdLazyCounter, 5559 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7022 SdHoareTripleChecker+Valid, 6449 SdHoareTripleChecker+Invalid, 5792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 5559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:26,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7022 Valid, 6449 Invalid, 5792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 5559 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:04:26,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2021-12-17 17:04:26,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 2762. [2021-12-17 17:04:26,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.448440366972477) internal successors, (3947), 2761 states have internal predecessors, (3947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3947 transitions. [2021-12-17 17:04:26,972 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3947 transitions. Word has length 129 [2021-12-17 17:04:26,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:26,972 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3947 transitions. [2021-12-17 17:04:26,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3947 transitions. [2021-12-17 17:04:26,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:26,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:26,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:26,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-17 17:04:26,975 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:26,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1423508002, now seen corresponding path program 1 times [2021-12-17 17:04:26,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:26,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80739886] [2021-12-17 17:04:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:26,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:27,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:27,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80739886] [2021-12-17 17:04:27,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80739886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:27,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:27,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:27,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588884053] [2021-12-17 17:04:27,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:27,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:27,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:27,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:27,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:27,078 INFO L87 Difference]: Start difference. First operand 2762 states and 3947 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:29,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:29,756 INFO L93 Difference]: Finished difference Result 4681 states and 6655 transitions. [2021-12-17 17:04:29,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:29,757 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:29,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:29,762 INFO L225 Difference]: With dead ends: 4681 [2021-12-17 17:04:29,762 INFO L226 Difference]: Without dead ends: 4474 [2021-12-17 17:04:29,763 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 [2021-12-17 17:04:29,763 INFO L933 BasicCegarLoop]: 1455 mSDtfsCounter, 10967 mSDsluCounter, 4821 mSDsCounter, 0 mSdLazyCounter, 5393 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10967 SdHoareTripleChecker+Valid, 6276 SdHoareTripleChecker+Invalid, 5759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 5393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:29,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10967 Valid, 6276 Invalid, 5759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 5393 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:04:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2021-12-17 17:04:29,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 2762. [2021-12-17 17:04:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.448073394495413) internal successors, (3946), 2761 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3946 transitions. [2021-12-17 17:04:29,965 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3946 transitions. Word has length 129 [2021-12-17 17:04:29,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:29,965 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3946 transitions. [2021-12-17 17:04:29,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3946 transitions. [2021-12-17 17:04:29,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:29,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:29,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:29,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-17 17:04:29,968 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:29,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:29,968 INFO L85 PathProgramCache]: Analyzing trace with hash -488689100, now seen corresponding path program 1 times [2021-12-17 17:04:29,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:29,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115951367] [2021-12-17 17:04:29,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:29,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:30,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:30,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115951367] [2021-12-17 17:04:30,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115951367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:30,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:30,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:04:30,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405400205] [2021-12-17 17:04:30,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:30,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:04:30,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:30,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:04:30,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:04:30,116 INFO L87 Difference]: Start difference. First operand 2762 states and 3946 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:35,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:35,166 INFO L93 Difference]: Finished difference Result 6638 states and 9551 transitions. [2021-12-17 17:04:35,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:04:35,166 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:35,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:35,173 INFO L225 Difference]: With dead ends: 6638 [2021-12-17 17:04:35,173 INFO L226 Difference]: Without dead ends: 6329 [2021-12-17 17:04:35,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:04:35,174 INFO L933 BasicCegarLoop]: 2487 mSDtfsCounter, 15598 mSDsluCounter, 8449 mSDsCounter, 0 mSdLazyCounter, 9008 mSolverCounterSat, 1009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15598 SdHoareTripleChecker+Valid, 10936 SdHoareTripleChecker+Invalid, 10017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1009 IncrementalHoareTripleChecker+Valid, 9008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:35,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15598 Valid, 10936 Invalid, 10017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1009 Valid, 9008 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-17 17:04:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6329 states. [2021-12-17 17:04:35,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6329 to 2766. [2021-12-17 17:04:35,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4474166361304508) internal successors, (3950), 2765 states have internal predecessors, (3950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3950 transitions. [2021-12-17 17:04:35,414 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3950 transitions. Word has length 129 [2021-12-17 17:04:35,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:35,415 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3950 transitions. [2021-12-17 17:04:35,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3950 transitions. [2021-12-17 17:04:35,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:35,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:35,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:35,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-17 17:04:35,417 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:35,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:35,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1685362764, now seen corresponding path program 1 times [2021-12-17 17:04:35,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:35,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537693685] [2021-12-17 17:04:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:35,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:35,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:35,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:35,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537693685] [2021-12-17 17:04:35,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537693685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:35,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:35,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:35,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600909226] [2021-12-17 17:04:35,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:35,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:35,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:35,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:35,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:35,512 INFO L87 Difference]: Start difference. First operand 2766 states and 3950 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:38,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:38,264 INFO L93 Difference]: Finished difference Result 4855 states and 6946 transitions. [2021-12-17 17:04:38,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:38,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:38,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:38,270 INFO L225 Difference]: With dead ends: 4855 [2021-12-17 17:04:38,271 INFO L226 Difference]: Without dead ends: 4622 [2021-12-17 17:04:38,272 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 [2021-12-17 17:04:38,272 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 14985 mSDsluCounter, 5124 mSDsCounter, 0 mSdLazyCounter, 5465 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14985 SdHoareTripleChecker+Valid, 6646 SdHoareTripleChecker+Invalid, 5603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 5465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:38,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14985 Valid, 6646 Invalid, 5603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 5465 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:04:38,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2021-12-17 17:04:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2766. [2021-12-17 17:04:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4470502015390252) internal successors, (3949), 2765 states have internal predecessors, (3949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:38,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3949 transitions. [2021-12-17 17:04:38,522 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3949 transitions. Word has length 129 [2021-12-17 17:04:38,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:38,522 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3949 transitions. [2021-12-17 17:04:38,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:38,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3949 transitions. [2021-12-17 17:04:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:38,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:38,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:38,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-17 17:04:38,524 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:38,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:38,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2134658241, now seen corresponding path program 1 times [2021-12-17 17:04:38,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:38,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800026625] [2021-12-17 17:04:38,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:38,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:38,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:38,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:38,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800026625] [2021-12-17 17:04:38,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800026625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:38,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:38,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:38,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522161048] [2021-12-17 17:04:38,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:38,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:38,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:38,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:38,617 INFO L87 Difference]: Start difference. First operand 2766 states and 3949 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:41,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:41,281 INFO L93 Difference]: Finished difference Result 4862 states and 6951 transitions. [2021-12-17 17:04:41,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:41,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:41,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:41,286 INFO L225 Difference]: With dead ends: 4862 [2021-12-17 17:04:41,286 INFO L226 Difference]: Without dead ends: 4622 [2021-12-17 17:04:41,287 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 [2021-12-17 17:04:41,287 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 7546 mSDsluCounter, 4965 mSDsCounter, 0 mSdLazyCounter, 5272 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7546 SdHoareTripleChecker+Valid, 6428 SdHoareTripleChecker+Invalid, 5341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 5272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:41,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7546 Valid, 6428 Invalid, 5341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 5272 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 17:04:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2021-12-17 17:04:41,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2766. [2021-12-17 17:04:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4466837669475998) internal successors, (3948), 2765 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3948 transitions. [2021-12-17 17:04:41,524 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3948 transitions. Word has length 129 [2021-12-17 17:04:41,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:41,524 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3948 transitions. [2021-12-17 17:04:41,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3948 transitions. [2021-12-17 17:04:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:41,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:41,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:41,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-17 17:04:41,527 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:41,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:41,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1691758366, now seen corresponding path program 1 times [2021-12-17 17:04:41,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:41,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395534249] [2021-12-17 17:04:41,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:41,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:41,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:41,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395534249] [2021-12-17 17:04:41,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395534249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:41,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:41,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:41,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233837246] [2021-12-17 17:04:41,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:41,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:41,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:41,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:41,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:41,618 INFO L87 Difference]: Start difference. First operand 2766 states and 3948 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:44,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:44,350 INFO L93 Difference]: Finished difference Result 4676 states and 6647 transitions. [2021-12-17 17:04:44,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:44,351 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:44,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:44,356 INFO L225 Difference]: With dead ends: 4676 [2021-12-17 17:04:44,356 INFO L226 Difference]: Without dead ends: 4478 [2021-12-17 17:04:44,357 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 [2021-12-17 17:04:44,357 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 10606 mSDsluCounter, 4939 mSDsCounter, 0 mSdLazyCounter, 5548 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10606 SdHoareTripleChecker+Valid, 6449 SdHoareTripleChecker+Invalid, 5911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 5548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:44,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10606 Valid, 6449 Invalid, 5911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 5548 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:04:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2021-12-17 17:04:44,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 2766. [2021-12-17 17:04:44,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4463173323561744) internal successors, (3947), 2765 states have internal predecessors, (3947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3947 transitions. [2021-12-17 17:04:44,630 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3947 transitions. Word has length 129 [2021-12-17 17:04:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:44,631 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3947 transitions. [2021-12-17 17:04:44,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3947 transitions. [2021-12-17 17:04:44,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:44,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:44,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:44,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-17 17:04:44,634 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:44,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:44,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1410747634, now seen corresponding path program 1 times [2021-12-17 17:04:44,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:44,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502244289] [2021-12-17 17:04:44,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:44,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:44,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:44,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502244289] [2021-12-17 17:04:44,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502244289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:44,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:44,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:44,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579642108] [2021-12-17 17:04:44,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:44,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:44,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:44,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:44,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:44,725 INFO L87 Difference]: Start difference. First operand 2766 states and 3947 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:47,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:47,627 INFO L93 Difference]: Finished difference Result 4784 states and 6831 transitions. [2021-12-17 17:04:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:47,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:47,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:47,632 INFO L225 Difference]: With dead ends: 4784 [2021-12-17 17:04:47,632 INFO L226 Difference]: Without dead ends: 4574 [2021-12-17 17:04:47,633 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 [2021-12-17 17:04:47,633 INFO L933 BasicCegarLoop]: 1777 mSDtfsCounter, 9924 mSDsluCounter, 5860 mSDsCounter, 0 mSdLazyCounter, 6343 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9924 SdHoareTripleChecker+Valid, 7637 SdHoareTripleChecker+Invalid, 6519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 6343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:47,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9924 Valid, 7637 Invalid, 6519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 6343 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:04:47,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2021-12-17 17:04:47,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 2766. [2021-12-17 17:04:47,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.445950897764749) internal successors, (3946), 2765 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3946 transitions. [2021-12-17 17:04:47,885 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3946 transitions. Word has length 129 [2021-12-17 17:04:47,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:47,886 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3946 transitions. [2021-12-17 17:04:47,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3946 transitions. [2021-12-17 17:04:47,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:47,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:47,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:47,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-17 17:04:47,889 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash -492901468, now seen corresponding path program 1 times [2021-12-17 17:04:47,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:47,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39405805] [2021-12-17 17:04:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:47,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:47,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:47,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:47,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39405805] [2021-12-17 17:04:47,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39405805] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:47,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:47,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:47,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125441524] [2021-12-17 17:04:47,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:47,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:47,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:47,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:47,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:47,991 INFO L87 Difference]: Start difference. First operand 2766 states and 3946 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:50,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:50,724 INFO L93 Difference]: Finished difference Result 4855 states and 6939 transitions. [2021-12-17 17:04:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:50,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:50,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:50,729 INFO L225 Difference]: With dead ends: 4855 [2021-12-17 17:04:50,729 INFO L226 Difference]: Without dead ends: 4622 [2021-12-17 17:04:50,730 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 [2021-12-17 17:04:50,731 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 11032 mSDsluCounter, 5125 mSDsCounter, 0 mSdLazyCounter, 5445 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11032 SdHoareTripleChecker+Valid, 6647 SdHoareTripleChecker+Invalid, 5548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 5445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:50,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11032 Valid, 6647 Invalid, 5548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 5445 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 17:04:50,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2021-12-17 17:04:51,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2766. [2021-12-17 17:04:51,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4455844631733235) internal successors, (3945), 2765 states have internal predecessors, (3945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:51,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3945 transitions. [2021-12-17 17:04:51,028 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3945 transitions. Word has length 129 [2021-12-17 17:04:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:51,028 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3945 transitions. [2021-12-17 17:04:51,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3945 transitions. [2021-12-17 17:04:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:51,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:51,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:51,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-17 17:04:51,032 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:51,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -429367370, now seen corresponding path program 1 times [2021-12-17 17:04:51,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:51,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075710042] [2021-12-17 17:04:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:51,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:51,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:51,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075710042] [2021-12-17 17:04:51,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075710042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:51,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:51,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:51,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286775957] [2021-12-17 17:04:51,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:51,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:51,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:51,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:51,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:51,136 INFO L87 Difference]: Start difference. First operand 2766 states and 3945 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:53,903 INFO L93 Difference]: Finished difference Result 4847 states and 6927 transitions. [2021-12-17 17:04:53,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:53,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:53,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:53,908 INFO L225 Difference]: With dead ends: 4847 [2021-12-17 17:04:53,908 INFO L226 Difference]: Without dead ends: 4622 [2021-12-17 17:04:53,909 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 [2021-12-17 17:04:53,909 INFO L933 BasicCegarLoop]: 1513 mSDtfsCounter, 11053 mSDsluCounter, 5121 mSDsCounter, 0 mSdLazyCounter, 5431 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11053 SdHoareTripleChecker+Valid, 6634 SdHoareTripleChecker+Invalid, 5534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 5431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:53,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11053 Valid, 6634 Invalid, 5534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 5431 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:04:53,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2021-12-17 17:04:54,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2766. [2021-12-17 17:04:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.445218028581898) internal successors, (3944), 2765 states have internal predecessors, (3944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:54,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3944 transitions. [2021-12-17 17:04:54,166 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3944 transitions. Word has length 129 [2021-12-17 17:04:54,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:54,166 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3944 transitions. [2021-12-17 17:04:54,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:54,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3944 transitions. [2021-12-17 17:04:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:54,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:54,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:54,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-17 17:04:54,169 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:54,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:54,169 INFO L85 PathProgramCache]: Analyzing trace with hash 289259916, now seen corresponding path program 1 times [2021-12-17 17:04:54,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:54,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500926283] [2021-12-17 17:04:54,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:54,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:54,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:54,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:54,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500926283] [2021-12-17 17:04:54,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500926283] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:54,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:54,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:54,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961185897] [2021-12-17 17:04:54,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:54,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:54,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:54,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:54,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:54,272 INFO L87 Difference]: Start difference. First operand 2766 states and 3944 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:57,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:57,316 INFO L93 Difference]: Finished difference Result 4784 states and 6828 transitions. [2021-12-17 17:04:57,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:57,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:04:57,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:57,322 INFO L225 Difference]: With dead ends: 4784 [2021-12-17 17:04:57,322 INFO L226 Difference]: Without dead ends: 4574 [2021-12-17 17:04:57,323 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 [2021-12-17 17:04:57,323 INFO L933 BasicCegarLoop]: 1917 mSDtfsCounter, 9539 mSDsluCounter, 6164 mSDsCounter, 0 mSdLazyCounter, 6716 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9539 SdHoareTripleChecker+Valid, 8081 SdHoareTripleChecker+Invalid, 6887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 6716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:57,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9539 Valid, 8081 Invalid, 6887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 6716 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:04:57,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2021-12-17 17:04:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 2766. [2021-12-17 17:04:57,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4448515939904727) internal successors, (3943), 2765 states have internal predecessors, (3943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3943 transitions. [2021-12-17 17:04:57,607 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3943 transitions. Word has length 129 [2021-12-17 17:04:57,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:57,607 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3943 transitions. [2021-12-17 17:04:57,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:57,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3943 transitions. [2021-12-17 17:04:57,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:04:57,610 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:57,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:57,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-17 17:04:57,610 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:04:57,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:57,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1336982598, now seen corresponding path program 1 times [2021-12-17 17:04:57,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:57,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542571744] [2021-12-17 17:04:57,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:57,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:57,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:57,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542571744] [2021-12-17 17:04:57,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542571744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:57,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:57,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:57,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343989308] [2021-12-17 17:04:57,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:57,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:57,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:57,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:57,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:57,714 INFO L87 Difference]: Start difference. First operand 2766 states and 3943 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:00,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:00,776 INFO L93 Difference]: Finished difference Result 4782 states and 6824 transitions. [2021-12-17 17:05:00,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:00,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:05:00,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:00,781 INFO L225 Difference]: With dead ends: 4782 [2021-12-17 17:05:00,781 INFO L226 Difference]: Without dead ends: 4574 [2021-12-17 17:05:00,782 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 [2021-12-17 17:05:00,783 INFO L933 BasicCegarLoop]: 1840 mSDtfsCounter, 12898 mSDsluCounter, 6054 mSDsCounter, 0 mSdLazyCounter, 6544 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12898 SdHoareTripleChecker+Valid, 7894 SdHoareTripleChecker+Invalid, 6775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 6544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:00,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12898 Valid, 7894 Invalid, 6775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 6544 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:05:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2021-12-17 17:05:01,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 2766. [2021-12-17 17:05:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4444851593990473) internal successors, (3942), 2765 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3942 transitions. [2021-12-17 17:05:01,057 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3942 transitions. Word has length 129 [2021-12-17 17:05:01,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:01,057 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3942 transitions. [2021-12-17 17:05:01,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:01,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3942 transitions. [2021-12-17 17:05:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:05:01,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:01,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:01,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-17 17:05:01,060 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:01,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:01,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1325526123, now seen corresponding path program 1 times [2021-12-17 17:05:01,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:01,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855849375] [2021-12-17 17:05:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:01,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:01,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:01,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855849375] [2021-12-17 17:05:01,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855849375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:01,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:01,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:01,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683790187] [2021-12-17 17:05:01,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:01,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:01,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:01,159 INFO L87 Difference]: Start difference. First operand 2766 states and 3942 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:03,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:03,371 INFO L93 Difference]: Finished difference Result 4171 states and 5955 transitions. [2021-12-17 17:05:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 17:05:03,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:05:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:03,374 INFO L225 Difference]: With dead ends: 4171 [2021-12-17 17:05:03,374 INFO L226 Difference]: Without dead ends: 3059 [2021-12-17 17:05:03,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-12-17 17:05:03,376 INFO L933 BasicCegarLoop]: 1536 mSDtfsCounter, 10217 mSDsluCounter, 4483 mSDsCounter, 0 mSdLazyCounter, 4879 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10217 SdHoareTripleChecker+Valid, 6019 SdHoareTripleChecker+Invalid, 4912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:03,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10217 Valid, 6019 Invalid, 4912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 4879 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:05:03,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2021-12-17 17:05:03,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 2766. [2021-12-17 17:05:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4437522902161963) internal successors, (3940), 2765 states have internal predecessors, (3940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3940 transitions. [2021-12-17 17:05:03,645 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3940 transitions. Word has length 129 [2021-12-17 17:05:03,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:03,645 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3940 transitions. [2021-12-17 17:05:03,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3940 transitions. [2021-12-17 17:05:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:05:03,647 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:03,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:03,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-17 17:05:03,648 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:03,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash 198098984, now seen corresponding path program 1 times [2021-12-17 17:05:03,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:03,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163628337] [2021-12-17 17:05:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:03,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:03,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:03,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163628337] [2021-12-17 17:05:03,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163628337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:03,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:03,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:03,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216799540] [2021-12-17 17:05:03,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:03,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:03,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:03,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:03,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:03,767 INFO L87 Difference]: Start difference. First operand 2766 states and 3940 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:06,723 INFO L93 Difference]: Finished difference Result 4906 states and 7002 transitions. [2021-12-17 17:05:06,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:06,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:05:06,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:06,729 INFO L225 Difference]: With dead ends: 4906 [2021-12-17 17:05:06,729 INFO L226 Difference]: Without dead ends: 4622 [2021-12-17 17:05:06,730 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 [2021-12-17 17:05:06,730 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 14949 mSDsluCounter, 5118 mSDsCounter, 0 mSdLazyCounter, 5414 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14949 SdHoareTripleChecker+Valid, 6640 SdHoareTripleChecker+Invalid, 5552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 5414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:06,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14949 Valid, 6640 Invalid, 5552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 5414 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:05:06,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2021-12-17 17:05:07,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2766. [2021-12-17 17:05:07,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.4430194210333456) internal successors, (3938), 2765 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:07,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3938 transitions. [2021-12-17 17:05:07,019 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3938 transitions. Word has length 129 [2021-12-17 17:05:07,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:07,020 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3938 transitions. [2021-12-17 17:05:07,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3938 transitions. [2021-12-17 17:05:07,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:05:07,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:07,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:07,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-17 17:05:07,022 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:07,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:07,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1804232376, now seen corresponding path program 1 times [2021-12-17 17:05:07,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:07,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39328309] [2021-12-17 17:05:07,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:07,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:07,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:07,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:07,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39328309] [2021-12-17 17:05:07,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39328309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:07,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:07,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:05:07,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982657444] [2021-12-17 17:05:07,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:07,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:05:07,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:07,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:05:07,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:05:07,203 INFO L87 Difference]: Start difference. First operand 2766 states and 3938 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:12,646 INFO L93 Difference]: Finished difference Result 6804 states and 9782 transitions. [2021-12-17 17:05:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:05:12,646 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:05:12,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:12,653 INFO L225 Difference]: With dead ends: 6804 [2021-12-17 17:05:12,653 INFO L226 Difference]: Without dead ends: 6412 [2021-12-17 17:05:12,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:05:12,654 INFO L933 BasicCegarLoop]: 2400 mSDtfsCounter, 15887 mSDsluCounter, 8847 mSDsCounter, 0 mSdLazyCounter, 9138 mSolverCounterSat, 1077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15887 SdHoareTripleChecker+Valid, 11247 SdHoareTripleChecker+Invalid, 10215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1077 IncrementalHoareTripleChecker+Valid, 9138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:12,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15887 Valid, 11247 Invalid, 10215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1077 Valid, 9138 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-17 17:05:12,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-12-17 17:05:12,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 2774. [2021-12-17 17:05:12,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4417245158933139) internal successors, (3946), 2773 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:12,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3946 transitions. [2021-12-17 17:05:12,978 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3946 transitions. Word has length 129 [2021-12-17 17:05:12,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:12,978 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3946 transitions. [2021-12-17 17:05:12,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:12,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3946 transitions. [2021-12-17 17:05:12,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:05:12,982 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:12,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:12,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-17 17:05:12,982 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:12,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash -302633676, now seen corresponding path program 1 times [2021-12-17 17:05:12,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:12,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624786031] [2021-12-17 17:05:12,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:12,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:13,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:13,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624786031] [2021-12-17 17:05:13,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624786031] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:13,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:13,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:13,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418054486] [2021-12-17 17:05:13,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:13,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:13,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:13,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:13,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:13,085 INFO L87 Difference]: Start difference. First operand 2774 states and 3946 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:15,816 INFO L93 Difference]: Finished difference Result 4914 states and 7006 transitions. [2021-12-17 17:05:15,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:15,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:05:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:15,820 INFO L225 Difference]: With dead ends: 4914 [2021-12-17 17:05:15,820 INFO L226 Difference]: Without dead ends: 4630 [2021-12-17 17:05:15,821 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 [2021-12-17 17:05:15,821 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 7523 mSDsluCounter, 4969 mSDsCounter, 0 mSdLazyCounter, 5225 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7523 SdHoareTripleChecker+Valid, 6432 SdHoareTripleChecker+Invalid, 5294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 5225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:15,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7523 Valid, 6432 Invalid, 5294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 5225 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 17:05:15,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2021-12-17 17:05:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 2774. [2021-12-17 17:05:16,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4409937888198758) internal successors, (3944), 2773 states have internal predecessors, (3944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:16,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3944 transitions. [2021-12-17 17:05:16,112 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3944 transitions. Word has length 129 [2021-12-17 17:05:16,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:16,113 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3944 transitions. [2021-12-17 17:05:16,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:16,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3944 transitions. [2021-12-17 17:05:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:05:16,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:16,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:16,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-17 17:05:16,115 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:16,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:16,116 INFO L85 PathProgramCache]: Analyzing trace with hash 377874393, now seen corresponding path program 1 times [2021-12-17 17:05:16,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:16,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376761818] [2021-12-17 17:05:16,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:16,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:16,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:16,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376761818] [2021-12-17 17:05:16,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376761818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:16,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:16,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:16,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069806623] [2021-12-17 17:05:16,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:16,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:16,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:16,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:16,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:16,223 INFO L87 Difference]: Start difference. First operand 2774 states and 3944 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:19,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:19,316 INFO L93 Difference]: Finished difference Result 4812 states and 6856 transitions. [2021-12-17 17:05:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:19,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:05:19,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:19,320 INFO L225 Difference]: With dead ends: 4812 [2021-12-17 17:05:19,320 INFO L226 Difference]: Without dead ends: 4582 [2021-12-17 17:05:19,321 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 [2021-12-17 17:05:19,321 INFO L933 BasicCegarLoop]: 1912 mSDtfsCounter, 6296 mSDsluCounter, 6265 mSDsCounter, 0 mSdLazyCounter, 6791 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6296 SdHoareTripleChecker+Valid, 8177 SdHoareTripleChecker+Invalid, 6903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 6791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:19,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6296 Valid, 8177 Invalid, 6903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 6791 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:05:19,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states. [2021-12-17 17:05:19,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 2774. [2021-12-17 17:05:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4402630617464378) internal successors, (3942), 2773 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:19,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3942 transitions. [2021-12-17 17:05:19,617 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3942 transitions. Word has length 129 [2021-12-17 17:05:19,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:19,618 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3942 transitions. [2021-12-17 17:05:19,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:19,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3942 transitions. [2021-12-17 17:05:19,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 17:05:19,620 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:19,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:19,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-17 17:05:19,620 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:19,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1295720559, now seen corresponding path program 1 times [2021-12-17 17:05:19,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:19,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707754626] [2021-12-17 17:05:19,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:19,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:19,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:19,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707754626] [2021-12-17 17:05:19,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707754626] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:19,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:19,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:19,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898067665] [2021-12-17 17:05:19,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:19,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:19,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:19,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:19,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:19,717 INFO L87 Difference]: Start difference. First operand 2774 states and 3942 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:22,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:22,632 INFO L93 Difference]: Finished difference Result 4906 states and 6993 transitions. [2021-12-17 17:05:22,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:22,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-12-17 17:05:22,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:22,637 INFO L225 Difference]: With dead ends: 4906 [2021-12-17 17:05:22,637 INFO L226 Difference]: Without dead ends: 4630 [2021-12-17 17:05:22,638 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 [2021-12-17 17:05:22,638 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 7087 mSDsluCounter, 5125 mSDsCounter, 0 mSdLazyCounter, 5410 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7087 SdHoareTripleChecker+Valid, 6647 SdHoareTripleChecker+Invalid, 5477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 5410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:22,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7087 Valid, 6647 Invalid, 5477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 5410 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:05:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2021-12-17 17:05:22,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 2774. [2021-12-17 17:05:22,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4395323346729996) internal successors, (3940), 2773 states have internal predecessors, (3940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3940 transitions. [2021-12-17 17:05:22,959 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3940 transitions. Word has length 129 [2021-12-17 17:05:22,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:22,959 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3940 transitions. [2021-12-17 17:05:22,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:22,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3940 transitions. [2021-12-17 17:05:22,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-17 17:05:22,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:22,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:22,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-17 17:05:22,962 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash -656051077, now seen corresponding path program 1 times [2021-12-17 17:05:22,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:22,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267790074] [2021-12-17 17:05:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:22,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:23,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:23,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267790074] [2021-12-17 17:05:23,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267790074] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:23,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:23,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:23,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594646407] [2021-12-17 17:05:23,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:23,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:23,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:23,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:23,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:23,059 INFO L87 Difference]: Start difference. First operand 2774 states and 3940 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:25,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:25,875 INFO L93 Difference]: Finished difference Result 4884 states and 6945 transitions. [2021-12-17 17:05:25,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:25,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2021-12-17 17:05:25,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:25,880 INFO L225 Difference]: With dead ends: 4884 [2021-12-17 17:05:25,880 INFO L226 Difference]: Without dead ends: 4630 [2021-12-17 17:05:25,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:25,881 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 7340 mSDsluCounter, 5064 mSDsCounter, 0 mSdLazyCounter, 5366 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7340 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 5434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 5366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:25,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7340 Valid, 6586 Invalid, 5434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 5366 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 17:05:25,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2021-12-17 17:05:26,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 2774. [2021-12-17 17:05:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4391669711362807) internal successors, (3939), 2773 states have internal predecessors, (3939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:26,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3939 transitions. [2021-12-17 17:05:26,182 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3939 transitions. Word has length 130 [2021-12-17 17:05:26,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:26,182 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3939 transitions. [2021-12-17 17:05:26,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:26,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3939 transitions. [2021-12-17 17:05:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-17 17:05:26,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:26,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:26,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-17 17:05:26,185 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:26,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:26,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1511778656, now seen corresponding path program 1 times [2021-12-17 17:05:26,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:26,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92583850] [2021-12-17 17:05:26,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:26,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:26,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:26,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:26,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92583850] [2021-12-17 17:05:26,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92583850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:26,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:26,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:26,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616685642] [2021-12-17 17:05:26,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:26,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:26,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:26,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:26,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:26,274 INFO L87 Difference]: Start difference. First operand 2774 states and 3939 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:29,123 INFO L93 Difference]: Finished difference Result 4918 states and 6994 transitions. [2021-12-17 17:05:29,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:29,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2021-12-17 17:05:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:29,127 INFO L225 Difference]: With dead ends: 4918 [2021-12-17 17:05:29,127 INFO L226 Difference]: Without dead ends: 4630 [2021-12-17 17:05:29,128 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 [2021-12-17 17:05:29,129 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 7267 mSDsluCounter, 5104 mSDsCounter, 0 mSdLazyCounter, 5387 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7267 SdHoareTripleChecker+Valid, 6626 SdHoareTripleChecker+Invalid, 5454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 5387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:29,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7267 Valid, 6626 Invalid, 5454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 5387 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 17:05:29,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2021-12-17 17:05:29,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 2774. [2021-12-17 17:05:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4384362440628424) internal successors, (3937), 2773 states have internal predecessors, (3937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:29,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3937 transitions. [2021-12-17 17:05:29,441 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3937 transitions. Word has length 130 [2021-12-17 17:05:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:29,442 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3937 transitions. [2021-12-17 17:05:29,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3937 transitions. [2021-12-17 17:05:29,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-17 17:05:29,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:29,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:29,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-17 17:05:29,444 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:29,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:29,444 INFO L85 PathProgramCache]: Analyzing trace with hash -903679702, now seen corresponding path program 1 times [2021-12-17 17:05:29,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:29,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381830943] [2021-12-17 17:05:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:29,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:29,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:29,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381830943] [2021-12-17 17:05:29,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381830943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:29,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:29,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:29,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891974852] [2021-12-17 17:05:29,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:29,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:29,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:29,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:29,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:29,535 INFO L87 Difference]: Start difference. First operand 2774 states and 3937 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:32,791 INFO L93 Difference]: Finished difference Result 4816 states and 6852 transitions. [2021-12-17 17:05:32,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:32,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2021-12-17 17:05:32,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:32,796 INFO L225 Difference]: With dead ends: 4816 [2021-12-17 17:05:32,796 INFO L226 Difference]: Without dead ends: 4582 [2021-12-17 17:05:32,797 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 [2021-12-17 17:05:32,797 INFO L933 BasicCegarLoop]: 2040 mSDtfsCounter, 11786 mSDsluCounter, 6647 mSDsCounter, 0 mSdLazyCounter, 7167 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11786 SdHoareTripleChecker+Valid, 8687 SdHoareTripleChecker+Invalid, 7383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 7167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:32,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11786 Valid, 8687 Invalid, 7383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 7167 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:05:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states. [2021-12-17 17:05:33,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 2774. [2021-12-17 17:05:33,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4377055169894044) internal successors, (3935), 2773 states have internal predecessors, (3935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:33,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3935 transitions. [2021-12-17 17:05:33,132 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3935 transitions. Word has length 130 [2021-12-17 17:05:33,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:33,132 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3935 transitions. [2021-12-17 17:05:33,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:33,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3935 transitions. [2021-12-17 17:05:33,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:05:33,134 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:33,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:33,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-17 17:05:33,135 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:33,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:33,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1724721269, now seen corresponding path program 1 times [2021-12-17 17:05:33,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:33,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433888889] [2021-12-17 17:05:33,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:33,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:33,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:33,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433888889] [2021-12-17 17:05:33,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433888889] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:33,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:33,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:33,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43246014] [2021-12-17 17:05:33,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:33,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:33,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:33,235 INFO L87 Difference]: Start difference. First operand 2774 states and 3935 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:36,197 INFO L93 Difference]: Finished difference Result 4684 states and 6633 transitions. [2021-12-17 17:05:36,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:36,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:05:36,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:36,202 INFO L225 Difference]: With dead ends: 4684 [2021-12-17 17:05:36,202 INFO L226 Difference]: Without dead ends: 4486 [2021-12-17 17:05:36,203 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 [2021-12-17 17:05:36,203 INFO L933 BasicCegarLoop]: 1587 mSDtfsCounter, 6842 mSDsluCounter, 5170 mSDsCounter, 0 mSdLazyCounter, 5779 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6842 SdHoareTripleChecker+Valid, 6757 SdHoareTripleChecker+Invalid, 6007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 5779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:36,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6842 Valid, 6757 Invalid, 6007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 5779 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:05:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. [2021-12-17 17:05:36,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4486 to 2774. [2021-12-17 17:05:36,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4373401534526855) internal successors, (3934), 2773 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:36,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3934 transitions. [2021-12-17 17:05:36,538 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3934 transitions. Word has length 131 [2021-12-17 17:05:36,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:36,538 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3934 transitions. [2021-12-17 17:05:36,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3934 transitions. [2021-12-17 17:05:36,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:05:36,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:36,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:36,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-17 17:05:36,540 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:36,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:36,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1011705232, now seen corresponding path program 1 times [2021-12-17 17:05:36,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:36,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449035364] [2021-12-17 17:05:36,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:36,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:36,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:36,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:36,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449035364] [2021-12-17 17:05:36,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449035364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:36,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:36,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:05:36,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486696188] [2021-12-17 17:05:36,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:36,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:05:36,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:36,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:05:36,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:05:36,722 INFO L87 Difference]: Start difference. First operand 2774 states and 3934 transitions. Second operand has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:42,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:42,615 INFO L93 Difference]: Finished difference Result 6070 states and 8680 transitions. [2021-12-17 17:05:42,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:05:42,615 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:05:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:42,621 INFO L225 Difference]: With dead ends: 6070 [2021-12-17 17:05:42,621 INFO L226 Difference]: Without dead ends: 5855 [2021-12-17 17:05:42,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:05:42,622 INFO L933 BasicCegarLoop]: 2259 mSDtfsCounter, 14365 mSDsluCounter, 10143 mSDsCounter, 0 mSdLazyCounter, 10357 mSolverCounterSat, 1241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14365 SdHoareTripleChecker+Valid, 12402 SdHoareTripleChecker+Invalid, 11598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1241 IncrementalHoareTripleChecker+Valid, 10357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:42,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14365 Valid, 12402 Invalid, 11598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1241 Valid, 10357 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-17 17:05:42,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2021-12-17 17:05:42,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 2778. [2021-12-17 17:05:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.4367019336008755) internal successors, (3938), 2777 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:42,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3938 transitions. [2021-12-17 17:05:42,980 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3938 transitions. Word has length 131 [2021-12-17 17:05:42,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:42,981 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3938 transitions. [2021-12-17 17:05:42,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:42,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3938 transitions. [2021-12-17 17:05:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:05:42,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:42,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:42,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-17 17:05:42,983 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash -268340785, now seen corresponding path program 1 times [2021-12-17 17:05:42,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:42,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870482789] [2021-12-17 17:05:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:42,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:43,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:43,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870482789] [2021-12-17 17:05:43,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870482789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:43,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:43,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:43,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310123252] [2021-12-17 17:05:43,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:43,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:43,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:43,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:43,089 INFO L87 Difference]: Start difference. First operand 2778 states and 3938 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:46,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:46,607 INFO L93 Difference]: Finished difference Result 4792 states and 6816 transitions. [2021-12-17 17:05:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:46,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:05:46,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:46,612 INFO L225 Difference]: With dead ends: 4792 [2021-12-17 17:05:46,612 INFO L226 Difference]: Without dead ends: 4582 [2021-12-17 17:05:46,613 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 [2021-12-17 17:05:46,613 INFO L933 BasicCegarLoop]: 2157 mSDtfsCounter, 8618 mSDsluCounter, 6880 mSDsCounter, 0 mSdLazyCounter, 7486 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8618 SdHoareTripleChecker+Valid, 9037 SdHoareTripleChecker+Invalid, 7643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 7486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:46,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8618 Valid, 9037 Invalid, 7643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 7486 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:05:46,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states. [2021-12-17 17:05:46,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 2778. [2021-12-17 17:05:46,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.43633710324699) internal successors, (3937), 2777 states have internal predecessors, (3937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:46,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3937 transitions. [2021-12-17 17:05:46,974 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3937 transitions. Word has length 131 [2021-12-17 17:05:46,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:46,974 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3937 transitions. [2021-12-17 17:05:46,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:46,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3937 transitions. [2021-12-17 17:05:46,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:05:46,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:46,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:46,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-17 17:05:46,977 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:46,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:46,977 INFO L85 PathProgramCache]: Analyzing trace with hash -304731077, now seen corresponding path program 1 times [2021-12-17 17:05:46,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:46,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612013450] [2021-12-17 17:05:46,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:46,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:47,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:47,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:47,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612013450] [2021-12-17 17:05:47,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612013450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:47,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:47,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:47,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940010325] [2021-12-17 17:05:47,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:47,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:47,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:47,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:47,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:47,079 INFO L87 Difference]: Start difference. First operand 2778 states and 3937 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:50,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:50,152 INFO L93 Difference]: Finished difference Result 4688 states and 6634 transitions. [2021-12-17 17:05:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:50,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:05:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:50,157 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:05:50,157 INFO L226 Difference]: Without dead ends: 4490 [2021-12-17 17:05:50,158 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 [2021-12-17 17:05:50,158 INFO L933 BasicCegarLoop]: 1603 mSDtfsCounter, 10169 mSDsluCounter, 5221 mSDsCounter, 0 mSdLazyCounter, 5820 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10169 SdHoareTripleChecker+Valid, 6824 SdHoareTripleChecker+Invalid, 6171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 5820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:50,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10169 Valid, 6824 Invalid, 6171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 5820 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:05:50,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2021-12-17 17:05:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 2778. [2021-12-17 17:05:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.4359722728931048) internal successors, (3936), 2777 states have internal predecessors, (3936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:50,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3936 transitions. [2021-12-17 17:05:50,511 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3936 transitions. Word has length 131 [2021-12-17 17:05:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:50,511 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3936 transitions. [2021-12-17 17:05:50,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3936 transitions. [2021-12-17 17:05:50,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:05:50,513 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:50,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:50,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-17 17:05:50,514 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:50,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:50,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1579285397, now seen corresponding path program 1 times [2021-12-17 17:05:50,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:50,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239727673] [2021-12-17 17:05:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:50,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:50,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:50,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239727673] [2021-12-17 17:05:50,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239727673] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:50,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:50,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:50,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920101309] [2021-12-17 17:05:50,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:50,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:50,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:50,612 INFO L87 Difference]: Start difference. First operand 2778 states and 3936 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:54,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:54,000 INFO L93 Difference]: Finished difference Result 4938 states and 7035 transitions. [2021-12-17 17:05:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:54,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:05:54,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:54,006 INFO L225 Difference]: With dead ends: 4938 [2021-12-17 17:05:54,006 INFO L226 Difference]: Without dead ends: 4650 [2021-12-17 17:05:54,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:54,009 INFO L933 BasicCegarLoop]: 2121 mSDtfsCounter, 11323 mSDsluCounter, 6869 mSDsCounter, 0 mSdLazyCounter, 7176 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11323 SdHoareTripleChecker+Valid, 8990 SdHoareTripleChecker+Invalid, 7230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 7176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:54,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11323 Valid, 8990 Invalid, 7230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 7176 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:05:54,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2021-12-17 17:05:54,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 2778. [2021-12-17 17:05:54,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.4356074425392193) internal successors, (3935), 2777 states have internal predecessors, (3935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:54,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3935 transitions. [2021-12-17 17:05:54,367 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3935 transitions. Word has length 131 [2021-12-17 17:05:54,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:54,367 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3935 transitions. [2021-12-17 17:05:54,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:54,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3935 transitions. [2021-12-17 17:05:54,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:05:54,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:54,370 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:54,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-17 17:05:54,370 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:54,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:54,371 INFO L85 PathProgramCache]: Analyzing trace with hash -167900017, now seen corresponding path program 1 times [2021-12-17 17:05:54,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:54,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527073408] [2021-12-17 17:05:54,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:54,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:54,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:54,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527073408] [2021-12-17 17:05:54,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527073408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:54,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:54,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:54,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940457264] [2021-12-17 17:05:54,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:54,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:54,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:54,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:54,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:54,464 INFO L87 Difference]: Start difference. First operand 2778 states and 3935 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:57,606 INFO L93 Difference]: Finished difference Result 4688 states and 6632 transitions. [2021-12-17 17:05:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:05:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:57,611 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:05:57,611 INFO L226 Difference]: Without dead ends: 4490 [2021-12-17 17:05:57,612 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 [2021-12-17 17:05:57,613 INFO L933 BasicCegarLoop]: 1680 mSDtfsCounter, 10022 mSDsluCounter, 5356 mSDsCounter, 0 mSdLazyCounter, 5997 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10022 SdHoareTripleChecker+Valid, 7036 SdHoareTripleChecker+Invalid, 6346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 5997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:57,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10022 Valid, 7036 Invalid, 6346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 5997 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:05:57,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2021-12-17 17:05:58,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 2778. [2021-12-17 17:05:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.4352426121853339) internal successors, (3934), 2777 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:58,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3934 transitions. [2021-12-17 17:05:58,007 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3934 transitions. Word has length 131 [2021-12-17 17:05:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:58,007 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3934 transitions. [2021-12-17 17:05:58,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3934 transitions. [2021-12-17 17:05:58,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:05:58,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:58,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:58,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-17 17:05:58,010 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:05:58,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:58,010 INFO L85 PathProgramCache]: Analyzing trace with hash 634792323, now seen corresponding path program 1 times [2021-12-17 17:05:58,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:58,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130788544] [2021-12-17 17:05:58,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:58,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:58,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:58,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130788544] [2021-12-17 17:05:58,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130788544] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:58,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:58,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:05:58,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294744476] [2021-12-17 17:05:58,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:58,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:05:58,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:58,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:05:58,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:05:58,164 INFO L87 Difference]: Start difference. First operand 2778 states and 3934 transitions. Second operand has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:03,933 INFO L93 Difference]: Finished difference Result 6604 states and 9473 transitions. [2021-12-17 17:06:03,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:06:03,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:03,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:03,939 INFO L225 Difference]: With dead ends: 6604 [2021-12-17 17:06:03,939 INFO L226 Difference]: Without dead ends: 6316 [2021-12-17 17:06:03,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:06:03,940 INFO L933 BasicCegarLoop]: 2292 mSDtfsCounter, 20849 mSDsluCounter, 8336 mSDsCounter, 0 mSdLazyCounter, 8596 mSolverCounterSat, 1335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20849 SdHoareTripleChecker+Valid, 10628 SdHoareTripleChecker+Invalid, 9931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1335 IncrementalHoareTripleChecker+Valid, 8596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:03,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20849 Valid, 10628 Invalid, 9931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1335 Valid, 8596 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-17 17:06:03,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2021-12-17 17:06:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 2782. [2021-12-17 17:06:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.434608378870674) internal successors, (3938), 2781 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3938 transitions. [2021-12-17 17:06:04,322 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3938 transitions. Word has length 131 [2021-12-17 17:06:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:04,322 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3938 transitions. [2021-12-17 17:06:04,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3938 transitions. [2021-12-17 17:06:04,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:04,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:04,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:04,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-17 17:06:04,325 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:04,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:04,325 INFO L85 PathProgramCache]: Analyzing trace with hash -332393185, now seen corresponding path program 1 times [2021-12-17 17:06:04,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:04,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697783776] [2021-12-17 17:06:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:04,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:04,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:04,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697783776] [2021-12-17 17:06:04,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697783776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:04,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:04,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:04,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509254346] [2021-12-17 17:06:04,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:04,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:04,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:04,432 INFO L87 Difference]: Start difference. First operand 2782 states and 3938 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:08,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:08,023 INFO L93 Difference]: Finished difference Result 4796 states and 6814 transitions. [2021-12-17 17:06:08,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:08,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:08,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:08,027 INFO L225 Difference]: With dead ends: 4796 [2021-12-17 17:06:08,028 INFO L226 Difference]: Without dead ends: 4586 [2021-12-17 17:06:08,028 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 [2021-12-17 17:06:08,028 INFO L933 BasicCegarLoop]: 2098 mSDtfsCounter, 11717 mSDsluCounter, 6707 mSDsCounter, 0 mSdLazyCounter, 7242 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11717 SdHoareTripleChecker+Valid, 8805 SdHoareTripleChecker+Invalid, 7456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 7242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:08,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11717 Valid, 8805 Invalid, 7456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 7242 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:06:08,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-12-17 17:06:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 2782. [2021-12-17 17:06:08,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.4342440801457195) internal successors, (3937), 2781 states have internal predecessors, (3937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:08,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3937 transitions. [2021-12-17 17:06:08,427 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3937 transitions. Word has length 131 [2021-12-17 17:06:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:08,427 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3937 transitions. [2021-12-17 17:06:08,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:08,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3937 transitions. [2021-12-17 17:06:08,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:08,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:08,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:08,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-17 17:06:08,430 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:08,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:08,430 INFO L85 PathProgramCache]: Analyzing trace with hash 71533926, now seen corresponding path program 1 times [2021-12-17 17:06:08,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:08,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467523526] [2021-12-17 17:06:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:08,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:08,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:08,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:08,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467523526] [2021-12-17 17:06:08,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467523526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:08,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:08,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:08,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264626726] [2021-12-17 17:06:08,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:08,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:08,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:08,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:08,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:08,540 INFO L87 Difference]: Start difference. First operand 2782 states and 3937 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:12,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:12,220 INFO L93 Difference]: Finished difference Result 4794 states and 6810 transitions. [2021-12-17 17:06:12,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:12,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:12,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:12,225 INFO L225 Difference]: With dead ends: 4794 [2021-12-17 17:06:12,225 INFO L226 Difference]: Without dead ends: 4586 [2021-12-17 17:06:12,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:06:12,226 INFO L933 BasicCegarLoop]: 2092 mSDtfsCounter, 11473 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 7287 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11473 SdHoareTripleChecker+Valid, 8900 SdHoareTripleChecker+Invalid, 7499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 7287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:12,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11473 Valid, 8900 Invalid, 7499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 7287 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:06:12,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-12-17 17:06:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 2782. [2021-12-17 17:06:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.433879781420765) internal successors, (3936), 2781 states have internal predecessors, (3936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3936 transitions. [2021-12-17 17:06:12,647 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3936 transitions. Word has length 131 [2021-12-17 17:06:12,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:12,647 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3936 transitions. [2021-12-17 17:06:12,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:12,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3936 transitions. [2021-12-17 17:06:12,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:12,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:12,650 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:12,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-17 17:06:12,650 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:12,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:12,650 INFO L85 PathProgramCache]: Analyzing trace with hash -699312434, now seen corresponding path program 1 times [2021-12-17 17:06:12,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:12,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675301324] [2021-12-17 17:06:12,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:12,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:12,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:12,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675301324] [2021-12-17 17:06:12,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675301324] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:12,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:12,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:12,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195829017] [2021-12-17 17:06:12,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:12,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:12,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:12,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:12,752 INFO L87 Difference]: Start difference. First operand 2782 states and 3936 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:16,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:16,388 INFO L93 Difference]: Finished difference Result 4794 states and 6809 transitions. [2021-12-17 17:06:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:16,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:16,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:16,393 INFO L225 Difference]: With dead ends: 4794 [2021-12-17 17:06:16,393 INFO L226 Difference]: Without dead ends: 4586 [2021-12-17 17:06:16,394 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 [2021-12-17 17:06:16,394 INFO L933 BasicCegarLoop]: 2169 mSDtfsCounter, 8597 mSDsluCounter, 6919 mSDsCounter, 0 mSdLazyCounter, 7450 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8597 SdHoareTripleChecker+Valid, 9088 SdHoareTripleChecker+Invalid, 7608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 7450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:16,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8597 Valid, 9088 Invalid, 7608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 7450 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:06:16,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-12-17 17:06:16,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 2782. [2021-12-17 17:06:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.4335154826958105) internal successors, (3935), 2781 states have internal predecessors, (3935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:16,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3935 transitions. [2021-12-17 17:06:16,798 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3935 transitions. Word has length 131 [2021-12-17 17:06:16,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:16,798 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3935 transitions. [2021-12-17 17:06:16,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:16,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3935 transitions. [2021-12-17 17:06:16,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:16,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:16,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:16,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-17 17:06:16,801 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:16,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1979917901, now seen corresponding path program 1 times [2021-12-17 17:06:16,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:16,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832151521] [2021-12-17 17:06:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:16,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:16,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:16,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832151521] [2021-12-17 17:06:16,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832151521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:16,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:16,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:16,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44308214] [2021-12-17 17:06:16,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:16,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:16,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:16,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:16,909 INFO L87 Difference]: Start difference. First operand 2782 states and 3935 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:20,233 INFO L93 Difference]: Finished difference Result 4692 states and 6631 transitions. [2021-12-17 17:06:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:20,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:20,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:20,237 INFO L225 Difference]: With dead ends: 4692 [2021-12-17 17:06:20,237 INFO L226 Difference]: Without dead ends: 4494 [2021-12-17 17:06:20,238 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 [2021-12-17 17:06:20,238 INFO L933 BasicCegarLoop]: 1725 mSDtfsCounter, 6544 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 6128 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6544 SdHoareTripleChecker+Valid, 7216 SdHoareTripleChecker+Invalid, 6350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 6128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:20,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6544 Valid, 7216 Invalid, 6350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 6128 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:06:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2021-12-17 17:06:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 2782. [2021-12-17 17:06:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.4331511839708562) internal successors, (3934), 2781 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3934 transitions. [2021-12-17 17:06:20,660 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3934 transitions. Word has length 131 [2021-12-17 17:06:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:20,660 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3934 transitions. [2021-12-17 17:06:20,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:20,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3934 transitions. [2021-12-17 17:06:20,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:20,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:20,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:20,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-17 17:06:20,662 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:20,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:20,663 INFO L85 PathProgramCache]: Analyzing trace with hash -721172373, now seen corresponding path program 1 times [2021-12-17 17:06:20,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:20,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665373704] [2021-12-17 17:06:20,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:20,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:20,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:20,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665373704] [2021-12-17 17:06:20,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665373704] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:20,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:20,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:20,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655980187] [2021-12-17 17:06:20,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:20,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:20,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:20,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:20,773 INFO L87 Difference]: Start difference. First operand 2782 states and 3934 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:24,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:24,791 INFO L93 Difference]: Finished difference Result 4923 states and 7007 transitions. [2021-12-17 17:06:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:24,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:24,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:24,796 INFO L225 Difference]: With dead ends: 4923 [2021-12-17 17:06:24,796 INFO L226 Difference]: Without dead ends: 4650 [2021-12-17 17:06:24,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:06:24,797 INFO L933 BasicCegarLoop]: 2021 mSDtfsCounter, 11476 mSDsluCounter, 8317 mSDsCounter, 0 mSdLazyCounter, 8231 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11476 SdHoareTripleChecker+Valid, 10338 SdHoareTripleChecker+Invalid, 8285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 8231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:24,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11476 Valid, 10338 Invalid, 8285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 8231 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-17 17:06:24,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2021-12-17 17:06:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 2782. [2021-12-17 17:06:25,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.4327868852459016) internal successors, (3933), 2781 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3933 transitions. [2021-12-17 17:06:25,251 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3933 transitions. Word has length 131 [2021-12-17 17:06:25,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:25,251 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3933 transitions. [2021-12-17 17:06:25,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:25,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3933 transitions. [2021-12-17 17:06:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:25,253 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:25,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:25,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-17 17:06:25,253 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:25,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:25,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1648265359, now seen corresponding path program 1 times [2021-12-17 17:06:25,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:25,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108178892] [2021-12-17 17:06:25,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:25,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:25,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:25,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:25,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108178892] [2021-12-17 17:06:25,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108178892] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:25,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:25,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:06:25,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317347752] [2021-12-17 17:06:25,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:25,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:06:25,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:25,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:06:25,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:06:25,435 INFO L87 Difference]: Start difference. First operand 2782 states and 3933 transitions. Second operand has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:31,249 INFO L93 Difference]: Finished difference Result 6916 states and 9881 transitions. [2021-12-17 17:06:31,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:06:31,250 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:31,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:31,256 INFO L225 Difference]: With dead ends: 6916 [2021-12-17 17:06:31,256 INFO L226 Difference]: Without dead ends: 6472 [2021-12-17 17:06:31,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:06:31,257 INFO L933 BasicCegarLoop]: 2258 mSDtfsCounter, 17818 mSDsluCounter, 7548 mSDsCounter, 0 mSdLazyCounter, 7875 mSolverCounterSat, 1200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17818 SdHoareTripleChecker+Valid, 9806 SdHoareTripleChecker+Invalid, 9075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1200 IncrementalHoareTripleChecker+Valid, 7875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:31,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17818 Valid, 9806 Invalid, 9075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1200 Valid, 7875 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-17 17:06:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6472 states. [2021-12-17 17:06:31,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6472 to 2790. [2021-12-17 17:06:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2753 states have (on average 1.4315292408281874) internal successors, (3941), 2789 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:31,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3941 transitions. [2021-12-17 17:06:31,708 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3941 transitions. Word has length 131 [2021-12-17 17:06:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:31,708 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3941 transitions. [2021-12-17 17:06:31,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3941 transitions. [2021-12-17 17:06:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:31,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:31,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:31,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-17 17:06:31,711 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:31,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:31,712 INFO L85 PathProgramCache]: Analyzing trace with hash -547802254, now seen corresponding path program 1 times [2021-12-17 17:06:31,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:31,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875115429] [2021-12-17 17:06:31,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:31,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:31,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:31,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875115429] [2021-12-17 17:06:31,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875115429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:31,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:31,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:31,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526376999] [2021-12-17 17:06:31,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:31,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:31,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:31,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:31,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:31,809 INFO L87 Difference]: Start difference. First operand 2790 states and 3941 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:35,477 INFO L93 Difference]: Finished difference Result 4832 states and 6852 transitions. [2021-12-17 17:06:35,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:35,478 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:35,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:35,482 INFO L225 Difference]: With dead ends: 4832 [2021-12-17 17:06:35,482 INFO L226 Difference]: Without dead ends: 4594 [2021-12-17 17:06:35,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:06:35,483 INFO L933 BasicCegarLoop]: 2021 mSDtfsCounter, 11842 mSDsluCounter, 6587 mSDsCounter, 0 mSdLazyCounter, 7037 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11842 SdHoareTripleChecker+Valid, 8608 SdHoareTripleChecker+Invalid, 7253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 7037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:35,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11842 Valid, 8608 Invalid, 7253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 7037 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:06:35,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-17 17:06:35,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 2790. [2021-12-17 17:06:35,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2753 states have (on average 1.430802760624773) internal successors, (3939), 2789 states have internal predecessors, (3939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:35,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3939 transitions. [2021-12-17 17:06:35,933 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3939 transitions. Word has length 131 [2021-12-17 17:06:35,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:35,933 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3939 transitions. [2021-12-17 17:06:35,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:35,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3939 transitions. [2021-12-17 17:06:35,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:35,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:35,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:35,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-17 17:06:35,936 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:35,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:35,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1458810876, now seen corresponding path program 1 times [2021-12-17 17:06:35,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:35,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922056910] [2021-12-17 17:06:35,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:35,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:36,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:36,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:36,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922056910] [2021-12-17 17:06:36,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922056910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:36,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:36,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:36,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240024291] [2021-12-17 17:06:36,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:36,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:36,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:36,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:36,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:36,042 INFO L87 Difference]: Start difference. First operand 2790 states and 3939 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:39,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:39,891 INFO L93 Difference]: Finished difference Result 4950 states and 7012 transitions. [2021-12-17 17:06:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:39,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:39,896 INFO L225 Difference]: With dead ends: 4950 [2021-12-17 17:06:39,896 INFO L226 Difference]: Without dead ends: 4646 [2021-12-17 17:06:39,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:06:39,897 INFO L933 BasicCegarLoop]: 1667 mSDtfsCounter, 11936 mSDsluCounter, 7229 mSDsCounter, 0 mSdLazyCounter, 7108 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11936 SdHoareTripleChecker+Valid, 8896 SdHoareTripleChecker+Invalid, 7210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 7108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:39,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11936 Valid, 8896 Invalid, 7210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 7108 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:06:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4646 states. [2021-12-17 17:06:40,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4646 to 2790. [2021-12-17 17:06:40,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2753 states have (on average 1.4300762804213585) internal successors, (3937), 2789 states have internal predecessors, (3937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3937 transitions. [2021-12-17 17:06:40,330 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3937 transitions. Word has length 131 [2021-12-17 17:06:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:40,331 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3937 transitions. [2021-12-17 17:06:40,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3937 transitions. [2021-12-17 17:06:40,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:40,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:40,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:40,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-17 17:06:40,333 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:40,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:40,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1540367268, now seen corresponding path program 1 times [2021-12-17 17:06:40,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:40,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844680422] [2021-12-17 17:06:40,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:40,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:40,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:40,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844680422] [2021-12-17 17:06:40,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844680422] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:40,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:40,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:40,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936111739] [2021-12-17 17:06:40,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:40,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:40,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:40,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:40,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:40,433 INFO L87 Difference]: Start difference. First operand 2790 states and 3937 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:44,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:44,338 INFO L93 Difference]: Finished difference Result 5062 states and 7186 transitions. [2021-12-17 17:06:44,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:44,338 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:44,343 INFO L225 Difference]: With dead ends: 5062 [2021-12-17 17:06:44,343 INFO L226 Difference]: Without dead ends: 4650 [2021-12-17 17:06:44,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:06:44,344 INFO L933 BasicCegarLoop]: 1798 mSDtfsCounter, 12115 mSDsluCounter, 7715 mSDsCounter, 0 mSdLazyCounter, 7561 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12115 SdHoareTripleChecker+Valid, 9513 SdHoareTripleChecker+Invalid, 7617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 7561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:44,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12115 Valid, 9513 Invalid, 7617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 7561 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:06:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2021-12-17 17:06:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 2790. [2021-12-17 17:06:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2753 states have (on average 1.429349800217944) internal successors, (3935), 2789 states have internal predecessors, (3935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:44,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3935 transitions. [2021-12-17 17:06:44,821 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3935 transitions. Word has length 131 [2021-12-17 17:06:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:44,822 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3935 transitions. [2021-12-17 17:06:44,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:44,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3935 transitions. [2021-12-17 17:06:44,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:44,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:44,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:44,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-17 17:06:44,824 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:44,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:44,824 INFO L85 PathProgramCache]: Analyzing trace with hash 695364171, now seen corresponding path program 1 times [2021-12-17 17:06:44,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:44,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664396857] [2021-12-17 17:06:44,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:44,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:44,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:44,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664396857] [2021-12-17 17:06:44,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664396857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:44,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:44,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:44,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003224967] [2021-12-17 17:06:44,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:44,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:44,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:44,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:44,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:44,925 INFO L87 Difference]: Start difference. First operand 2790 states and 3935 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:48,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:48,716 INFO L93 Difference]: Finished difference Result 4824 states and 6837 transitions. [2021-12-17 17:06:48,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:48,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:48,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:48,721 INFO L225 Difference]: With dead ends: 4824 [2021-12-17 17:06:48,721 INFO L226 Difference]: Without dead ends: 4594 [2021-12-17 17:06:48,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:06:48,723 INFO L933 BasicCegarLoop]: 2125 mSDtfsCounter, 11247 mSDsluCounter, 6901 mSDsCounter, 0 mSdLazyCounter, 7390 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11247 SdHoareTripleChecker+Valid, 9026 SdHoareTripleChecker+Invalid, 7599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 7390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:48,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11247 Valid, 9026 Invalid, 7599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 7390 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:06:48,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-17 17:06:49,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 2790. [2021-12-17 17:06:49,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2753 states have (on average 1.4286233200145295) internal successors, (3933), 2789 states have internal predecessors, (3933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3933 transitions. [2021-12-17 17:06:49,200 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3933 transitions. Word has length 131 [2021-12-17 17:06:49,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:49,200 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3933 transitions. [2021-12-17 17:06:49,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:49,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3933 transitions. [2021-12-17 17:06:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:49,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:49,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:49,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-17 17:06:49,203 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash -865727641, now seen corresponding path program 1 times [2021-12-17 17:06:49,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:49,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853021278] [2021-12-17 17:06:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:49,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:49,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:49,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853021278] [2021-12-17 17:06:49,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853021278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:49,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:49,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:06:49,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449648183] [2021-12-17 17:06:49,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:49,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:06:49,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:49,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:06:49,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:06:49,355 INFO L87 Difference]: Start difference. First operand 2790 states and 3933 transitions. Second operand has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:55,783 INFO L93 Difference]: Finished difference Result 6128 states and 8735 transitions. [2021-12-17 17:06:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:06:55,783 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:06:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:55,789 INFO L225 Difference]: With dead ends: 6128 [2021-12-17 17:06:55,789 INFO L226 Difference]: Without dead ends: 5890 [2021-12-17 17:06:55,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:06:55,790 INFO L933 BasicCegarLoop]: 2214 mSDtfsCounter, 15042 mSDsluCounter, 9910 mSDsCounter, 0 mSdLazyCounter, 9970 mSolverCounterSat, 1248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15042 SdHoareTripleChecker+Valid, 12124 SdHoareTripleChecker+Invalid, 11218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1248 IncrementalHoareTripleChecker+Valid, 9970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:55,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15042 Valid, 12124 Invalid, 11218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1248 Valid, 9970 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-17 17:06:55,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5890 states. [2021-12-17 17:06:56,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5890 to 2798. [2021-12-17 17:06:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2761 states have (on average 1.4273813835566824) internal successors, (3941), 2797 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:56,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3941 transitions. [2021-12-17 17:06:56,260 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3941 transitions. Word has length 131 [2021-12-17 17:06:56,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:56,260 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3941 transitions. [2021-12-17 17:06:56,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:56,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3941 transitions. [2021-12-17 17:06:56,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:06:56,263 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:56,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:56,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-17 17:06:56,263 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:06:56,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:56,264 INFO L85 PathProgramCache]: Analyzing trace with hash -505051452, now seen corresponding path program 1 times [2021-12-17 17:06:56,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:56,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898059057] [2021-12-17 17:06:56,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:56,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:56,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:56,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898059057] [2021-12-17 17:06:56,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898059057] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:56,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:56,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:56,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691749582] [2021-12-17 17:06:56,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:56,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:56,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:56,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:56,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:56,358 INFO L87 Difference]: Start difference. First operand 2798 states and 3941 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:00,125 INFO L93 Difference]: Finished difference Result 4828 states and 6836 transitions. [2021-12-17 17:07:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:00,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:07:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:00,131 INFO L225 Difference]: With dead ends: 4828 [2021-12-17 17:07:00,131 INFO L226 Difference]: Without dead ends: 4594 [2021-12-17 17:07:00,132 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 [2021-12-17 17:07:00,133 INFO L933 BasicCegarLoop]: 2128 mSDtfsCounter, 8702 mSDsluCounter, 6793 mSDsCounter, 0 mSdLazyCounter, 7260 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8702 SdHoareTripleChecker+Valid, 8921 SdHoareTripleChecker+Invalid, 7419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 7260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:00,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8702 Valid, 8921 Invalid, 7419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 7260 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:07:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-17 17:07:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 2798. [2021-12-17 17:07:00,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2761 states have (on average 1.4266570083303152) internal successors, (3939), 2797 states have internal predecessors, (3939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3939 transitions. [2021-12-17 17:07:00,639 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3939 transitions. Word has length 131 [2021-12-17 17:07:00,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:00,639 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3939 transitions. [2021-12-17 17:07:00,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3939 transitions. [2021-12-17 17:07:00,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:07:00,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:00,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:00,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-12-17 17:07:00,642 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:00,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:00,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1055148646, now seen corresponding path program 1 times [2021-12-17 17:07:00,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:00,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206768848] [2021-12-17 17:07:00,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:00,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:00,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:00,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206768848] [2021-12-17 17:07:00,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206768848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:00,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:00,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:00,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028462402] [2021-12-17 17:07:00,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:00,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:00,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:00,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:00,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:00,739 INFO L87 Difference]: Start difference. First operand 2798 states and 3939 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:04,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:04,503 INFO L93 Difference]: Finished difference Result 4824 states and 6829 transitions. [2021-12-17 17:07:04,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:04,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:07:04,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:04,512 INFO L225 Difference]: With dead ends: 4824 [2021-12-17 17:07:04,512 INFO L226 Difference]: Without dead ends: 4594 [2021-12-17 17:07:04,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:07:04,513 INFO L933 BasicCegarLoop]: 2051 mSDtfsCounter, 11666 mSDsluCounter, 6682 mSDsCounter, 0 mSdLazyCounter, 7090 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11666 SdHoareTripleChecker+Valid, 8733 SdHoareTripleChecker+Invalid, 7303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 7090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:04,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11666 Valid, 8733 Invalid, 7303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 7090 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:07:04,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-17 17:07:04,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 2798. [2021-12-17 17:07:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2761 states have (on average 1.425932633103948) internal successors, (3937), 2797 states have internal predecessors, (3937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3937 transitions. [2021-12-17 17:07:04,990 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3937 transitions. Word has length 131 [2021-12-17 17:07:04,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:04,990 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3937 transitions. [2021-12-17 17:07:04,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:04,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3937 transitions. [2021-12-17 17:07:04,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:07:04,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:04,993 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:04,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-12-17 17:07:04,993 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:04,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:04,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1618944998, now seen corresponding path program 1 times [2021-12-17 17:07:04,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:04,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475666605] [2021-12-17 17:07:04,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:04,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:05,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:05,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475666605] [2021-12-17 17:07:05,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475666605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:05,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:05,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:05,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497066238] [2021-12-17 17:07:05,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:05,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:05,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:05,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:05,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:05,095 INFO L87 Difference]: Start difference. First operand 2798 states and 3937 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:09,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:09,110 INFO L93 Difference]: Finished difference Result 5038 states and 7144 transitions. [2021-12-17 17:07:09,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:09,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:07:09,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:09,114 INFO L225 Difference]: With dead ends: 5038 [2021-12-17 17:07:09,114 INFO L226 Difference]: Without dead ends: 4658 [2021-12-17 17:07:09,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:07:09,115 INFO L933 BasicCegarLoop]: 1786 mSDtfsCounter, 12113 mSDsluCounter, 7716 mSDsCounter, 0 mSdLazyCounter, 7541 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12113 SdHoareTripleChecker+Valid, 9502 SdHoareTripleChecker+Invalid, 7597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 7541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:09,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12113 Valid, 9502 Invalid, 7597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 7541 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:07:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-12-17 17:07:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 2798. [2021-12-17 17:07:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2761 states have (on average 1.4252082578775807) internal successors, (3935), 2797 states have internal predecessors, (3935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3935 transitions. [2021-12-17 17:07:09,580 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3935 transitions. Word has length 131 [2021-12-17 17:07:09,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:09,580 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3935 transitions. [2021-12-17 17:07:09,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3935 transitions. [2021-12-17 17:07:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:07:09,583 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:09,583 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:09,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-12-17 17:07:09,583 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:09,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:09,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1783438166, now seen corresponding path program 1 times [2021-12-17 17:07:09,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:09,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584805121] [2021-12-17 17:07:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:09,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:09,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:09,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584805121] [2021-12-17 17:07:09,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584805121] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:09,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:09,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:07:09,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847502945] [2021-12-17 17:07:09,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:09,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:07:09,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:09,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:07:09,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:07:09,729 INFO L87 Difference]: Start difference. First operand 2798 states and 3935 transitions. Second operand has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:16,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:16,070 INFO L93 Difference]: Finished difference Result 6112 states and 8707 transitions. [2021-12-17 17:07:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:07:16,070 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:07:16,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:16,076 INFO L225 Difference]: With dead ends: 6112 [2021-12-17 17:07:16,076 INFO L226 Difference]: Without dead ends: 5882 [2021-12-17 17:07:16,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:07:16,079 INFO L933 BasicCegarLoop]: 2191 mSDtfsCounter, 15099 mSDsluCounter, 9839 mSDsCounter, 0 mSdLazyCounter, 9869 mSolverCounterSat, 1260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15099 SdHoareTripleChecker+Valid, 12030 SdHoareTripleChecker+Invalid, 11129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1260 IncrementalHoareTripleChecker+Valid, 9869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:16,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15099 Valid, 12030 Invalid, 11129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1260 Valid, 9869 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-17 17:07:16,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5882 states. [2021-12-17 17:07:16,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5882 to 2806. [2021-12-17 17:07:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2769 states have (on average 1.4239797760924522) internal successors, (3943), 2805 states have internal predecessors, (3943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:16,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3943 transitions. [2021-12-17 17:07:16,627 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3943 transitions. Word has length 131 [2021-12-17 17:07:16,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:16,627 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 3943 transitions. [2021-12-17 17:07:16,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 11 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:16,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3943 transitions. [2021-12-17 17:07:16,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 17:07:16,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:16,630 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:16,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-12-17 17:07:16,630 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:16,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash -2094415515, now seen corresponding path program 1 times [2021-12-17 17:07:16,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:16,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644904853] [2021-12-17 17:07:16,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:16,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:16,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:16,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644904853] [2021-12-17 17:07:16,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644904853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:16,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:16,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:16,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351822278] [2021-12-17 17:07:16,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:16,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:16,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:16,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:16,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:16,739 INFO L87 Difference]: Start difference. First operand 2806 states and 3943 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:20,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:20,547 INFO L93 Difference]: Finished difference Result 4820 states and 6819 transitions. [2021-12-17 17:07:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:20,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-12-17 17:07:20,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:20,551 INFO L225 Difference]: With dead ends: 4820 [2021-12-17 17:07:20,551 INFO L226 Difference]: Without dead ends: 4594 [2021-12-17 17:07:20,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:07:20,552 INFO L933 BasicCegarLoop]: 2036 mSDtfsCounter, 11734 mSDsluCounter, 6642 mSDsCounter, 0 mSdLazyCounter, 7028 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11734 SdHoareTripleChecker+Valid, 8678 SdHoareTripleChecker+Invalid, 7241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 7028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:20,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11734 Valid, 8678 Invalid, 7241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 7028 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:07:20,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-17 17:07:21,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 2806. [2021-12-17 17:07:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2769 states have (on average 1.4232574936800289) internal successors, (3941), 2805 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:21,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3941 transitions. [2021-12-17 17:07:21,036 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3941 transitions. Word has length 131 [2021-12-17 17:07:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:21,036 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 3941 transitions. [2021-12-17 17:07:21,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3941 transitions. [2021-12-17 17:07:21,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:07:21,038 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:21,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:21,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-12-17 17:07:21,038 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:21,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:21,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1075862788, now seen corresponding path program 1 times [2021-12-17 17:07:21,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:21,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595105091] [2021-12-17 17:07:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:21,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:21,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:21,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:21,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595105091] [2021-12-17 17:07:21,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595105091] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:21,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:21,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:21,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668574018] [2021-12-17 17:07:21,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:21,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:21,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:21,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:21,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:21,139 INFO L87 Difference]: Start difference. First operand 2806 states and 3941 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:25,073 INFO L93 Difference]: Finished difference Result 4809 states and 6797 transitions. [2021-12-17 17:07:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:25,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:07:25,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:25,078 INFO L225 Difference]: With dead ends: 4809 [2021-12-17 17:07:25,078 INFO L226 Difference]: Without dead ends: 4594 [2021-12-17 17:07:25,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:07:25,079 INFO L933 BasicCegarLoop]: 2187 mSDtfsCounter, 11180 mSDsluCounter, 6962 mSDsCounter, 0 mSdLazyCounter, 7465 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11180 SdHoareTripleChecker+Valid, 9149 SdHoareTripleChecker+Invalid, 7673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 7465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:25,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11180 Valid, 9149 Invalid, 7673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 7465 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:07:25,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-17 17:07:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 2802. [2021-12-17 17:07:25,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2765 states have (on average 1.423508137432188) internal successors, (3936), 2801 states have internal predecessors, (3936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3936 transitions. [2021-12-17 17:07:25,584 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3936 transitions. Word has length 132 [2021-12-17 17:07:25,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:25,584 INFO L470 AbstractCegarLoop]: Abstraction has 2802 states and 3936 transitions. [2021-12-17 17:07:25,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3936 transitions. [2021-12-17 17:07:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:07:25,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:25,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:25,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-12-17 17:07:25,586 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:25,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:25,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1543261287, now seen corresponding path program 1 times [2021-12-17 17:07:25,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:25,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454474044] [2021-12-17 17:07:25,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:25,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:25,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:25,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454474044] [2021-12-17 17:07:25,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454474044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:25,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:25,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:25,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771635661] [2021-12-17 17:07:25,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:25,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:25,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:25,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:25,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:25,684 INFO L87 Difference]: Start difference. First operand 2802 states and 3936 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:29,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:29,600 INFO L93 Difference]: Finished difference Result 4967 states and 7024 transitions. [2021-12-17 17:07:29,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:29,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:07:29,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:29,605 INFO L225 Difference]: With dead ends: 4967 [2021-12-17 17:07:29,605 INFO L226 Difference]: Without dead ends: 4658 [2021-12-17 17:07:29,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:07:29,606 INFO L933 BasicCegarLoop]: 2030 mSDtfsCounter, 11559 mSDsluCounter, 7841 mSDsCounter, 0 mSdLazyCounter, 7812 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11559 SdHoareTripleChecker+Valid, 9871 SdHoareTripleChecker+Invalid, 7868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 7812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:29,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11559 Valid, 9871 Invalid, 7868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 7812 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:07:29,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-12-17 17:07:30,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 2798. [2021-12-17 17:07:30,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2761 states have (on average 1.4237595074248461) internal successors, (3931), 2797 states have internal predecessors, (3931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:30,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3931 transitions. [2021-12-17 17:07:30,124 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3931 transitions. Word has length 132 [2021-12-17 17:07:30,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:30,124 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3931 transitions. [2021-12-17 17:07:30,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3931 transitions. [2021-12-17 17:07:30,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:07:30,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:30,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:30,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-12-17 17:07:30,126 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:30,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:30,127 INFO L85 PathProgramCache]: Analyzing trace with hash 798547090, now seen corresponding path program 1 times [2021-12-17 17:07:30,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:30,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522355487] [2021-12-17 17:07:30,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:30,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:30,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:30,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522355487] [2021-12-17 17:07:30,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522355487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:30,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:30,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:30,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343445309] [2021-12-17 17:07:30,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:30,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:30,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:30,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:30,226 INFO L87 Difference]: Start difference. First operand 2798 states and 3931 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:33,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:33,697 INFO L93 Difference]: Finished difference Result 4707 states and 6625 transitions. [2021-12-17 17:07:33,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:33,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:07:33,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:33,702 INFO L225 Difference]: With dead ends: 4707 [2021-12-17 17:07:33,702 INFO L226 Difference]: Without dead ends: 4510 [2021-12-17 17:07:33,702 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 [2021-12-17 17:07:33,702 INFO L933 BasicCegarLoop]: 1749 mSDtfsCounter, 6459 mSDsluCounter, 5660 mSDsCounter, 0 mSdLazyCounter, 6237 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6459 SdHoareTripleChecker+Valid, 7409 SdHoareTripleChecker+Invalid, 6455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 6237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:33,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6459 Valid, 7409 Invalid, 6455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 6237 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:07:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2021-12-17 17:07:34,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 2798. [2021-12-17 17:07:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2761 states have (on average 1.4233973198116625) internal successors, (3930), 2797 states have internal predecessors, (3930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3930 transitions. [2021-12-17 17:07:34,191 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3930 transitions. Word has length 132 [2021-12-17 17:07:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:34,192 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3930 transitions. [2021-12-17 17:07:34,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3930 transitions. [2021-12-17 17:07:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:07:34,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:34,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:34,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-12-17 17:07:34,194 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:34,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:34,194 INFO L85 PathProgramCache]: Analyzing trace with hash -837343572, now seen corresponding path program 1 times [2021-12-17 17:07:34,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:34,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436261075] [2021-12-17 17:07:34,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:34,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:34,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:34,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:34,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436261075] [2021-12-17 17:07:34,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436261075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:34,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:34,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:34,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951783240] [2021-12-17 17:07:34,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:34,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:34,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:34,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:34,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:34,292 INFO L87 Difference]: Start difference. First operand 2798 states and 3930 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:38,042 INFO L93 Difference]: Finished difference Result 4946 states and 6999 transitions. [2021-12-17 17:07:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:07:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:38,047 INFO L225 Difference]: With dead ends: 4946 [2021-12-17 17:07:38,047 INFO L226 Difference]: Without dead ends: 4658 [2021-12-17 17:07:38,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:07:38,048 INFO L933 BasicCegarLoop]: 2100 mSDtfsCounter, 12324 mSDsluCounter, 6560 mSDsCounter, 0 mSdLazyCounter, 6893 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12324 SdHoareTripleChecker+Valid, 8660 SdHoareTripleChecker+Invalid, 6958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 6893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:38,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12324 Valid, 8660 Invalid, 6958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 6893 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:07:38,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-12-17 17:07:38,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 2794. [2021-12-17 17:07:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2757 states have (on average 1.4236488937250635) internal successors, (3925), 2793 states have internal predecessors, (3925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3925 transitions. [2021-12-17 17:07:38,568 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3925 transitions. Word has length 132 [2021-12-17 17:07:38,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:38,568 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3925 transitions. [2021-12-17 17:07:38,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3925 transitions. [2021-12-17 17:07:38,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:07:38,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:38,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:38,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-12-17 17:07:38,570 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:38,571 INFO L85 PathProgramCache]: Analyzing trace with hash 650775712, now seen corresponding path program 1 times [2021-12-17 17:07:38,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:38,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008542798] [2021-12-17 17:07:38,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:38,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:38,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:38,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008542798] [2021-12-17 17:07:38,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008542798] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:38,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:38,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:38,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54298179] [2021-12-17 17:07:38,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:38,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:38,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:38,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:38,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:38,667 INFO L87 Difference]: Start difference. First operand 2794 states and 3925 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:42,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:42,493 INFO L93 Difference]: Finished difference Result 4788 states and 6769 transitions. [2021-12-17 17:07:42,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:42,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:07:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:42,498 INFO L225 Difference]: With dead ends: 4788 [2021-12-17 17:07:42,498 INFO L226 Difference]: Without dead ends: 4586 [2021-12-17 17:07:42,499 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 [2021-12-17 17:07:42,499 INFO L933 BasicCegarLoop]: 2046 mSDtfsCounter, 11658 mSDsluCounter, 6690 mSDsCounter, 0 mSdLazyCounter, 7057 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11658 SdHoareTripleChecker+Valid, 8736 SdHoareTripleChecker+Invalid, 7270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 7057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:42,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11658 Valid, 8736 Invalid, 7270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 7057 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:07:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-12-17 17:07:42,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 2794. [2021-12-17 17:07:42,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2757 states have (on average 1.4232861806311208) internal successors, (3924), 2793 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:43,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3924 transitions. [2021-12-17 17:07:43,002 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3924 transitions. Word has length 132 [2021-12-17 17:07:43,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:43,002 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3924 transitions. [2021-12-17 17:07:43,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3924 transitions. [2021-12-17 17:07:43,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:07:43,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:43,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:43,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-12-17 17:07:43,005 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:43,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1210353504, now seen corresponding path program 1 times [2021-12-17 17:07:43,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:43,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402951335] [2021-12-17 17:07:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:43,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:43,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:43,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402951335] [2021-12-17 17:07:43,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402951335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:43,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:43,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:43,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272676096] [2021-12-17 17:07:43,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:43,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:43,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:43,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:43,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:43,108 INFO L87 Difference]: Start difference. First operand 2794 states and 3924 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:47,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:47,199 INFO L93 Difference]: Finished difference Result 5102 states and 7206 transitions. [2021-12-17 17:07:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:47,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:07:47,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:47,204 INFO L225 Difference]: With dead ends: 5102 [2021-12-17 17:07:47,204 INFO L226 Difference]: Without dead ends: 4658 [2021-12-17 17:07:47,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:07:47,205 INFO L933 BasicCegarLoop]: 2219 mSDtfsCounter, 8594 mSDsluCounter, 8521 mSDsCounter, 0 mSdLazyCounter, 8459 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8594 SdHoareTripleChecker+Valid, 10740 SdHoareTripleChecker+Invalid, 8503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 8459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:47,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8594 Valid, 10740 Invalid, 8503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 8459 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:07:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-12-17 17:07:47,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 2786. [2021-12-17 17:07:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2749 states have (on average 1.4237904692615497) internal successors, (3914), 2785 states have internal predecessors, (3914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3914 transitions. [2021-12-17 17:07:47,705 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3914 transitions. Word has length 132 [2021-12-17 17:07:47,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:47,705 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 3914 transitions. [2021-12-17 17:07:47,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3914 transitions. [2021-12-17 17:07:47,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:07:47,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:47,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:47,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-12-17 17:07:47,708 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:47,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:47,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1289983996, now seen corresponding path program 1 times [2021-12-17 17:07:47,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:47,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368247072] [2021-12-17 17:07:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:47,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:47,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:47,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368247072] [2021-12-17 17:07:47,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368247072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:47,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:47,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:07:47,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785755006] [2021-12-17 17:07:47,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:47,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:47,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:47,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:47,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:47,799 INFO L87 Difference]: Start difference. First operand 2786 states and 3914 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:51,260 INFO L93 Difference]: Finished difference Result 4710 states and 6627 transitions. [2021-12-17 17:07:51,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:51,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:07:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:51,265 INFO L225 Difference]: With dead ends: 4710 [2021-12-17 17:07:51,265 INFO L226 Difference]: Without dead ends: 4498 [2021-12-17 17:07:51,266 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 [2021-12-17 17:07:51,266 INFO L933 BasicCegarLoop]: 1759 mSDtfsCounter, 6464 mSDsluCounter, 5683 mSDsCounter, 0 mSdLazyCounter, 6254 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6464 SdHoareTripleChecker+Valid, 7442 SdHoareTripleChecker+Invalid, 6471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 6254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:51,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6464 Valid, 7442 Invalid, 6471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 6254 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:07:51,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2021-12-17 17:07:51,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 2786. [2021-12-17 17:07:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2749 states have (on average 1.4230629319752637) internal successors, (3912), 2785 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3912 transitions. [2021-12-17 17:07:51,773 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3912 transitions. Word has length 132 [2021-12-17 17:07:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:51,773 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 3912 transitions. [2021-12-17 17:07:51,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3912 transitions. [2021-12-17 17:07:51,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:07:51,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:51,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:51,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-12-17 17:07:51,776 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:07:51,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1318079906, now seen corresponding path program 1 times [2021-12-17 17:07:51,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:51,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904472384] [2021-12-17 17:07:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:51,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:51,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:51,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904472384] [2021-12-17 17:07:51,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904472384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:51,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:51,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:07:51,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313163009] [2021-12-17 17:07:51,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:51,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:07:51,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:51,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:07:51,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:07:51,936 INFO L87 Difference]: Start difference. First operand 2786 states and 3912 transitions. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:59,862 INFO L93 Difference]: Finished difference Result 6780 states and 9586 transitions. [2021-12-17 17:07:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-17 17:07:59,862 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:07:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:59,869 INFO L225 Difference]: With dead ends: 6780 [2021-12-17 17:07:59,869 INFO L226 Difference]: Without dead ends: 6388 [2021-12-17 17:07:59,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=925, Unknown=0, NotChecked=0, Total=1190 [2021-12-17 17:07:59,870 INFO L933 BasicCegarLoop]: 3012 mSDtfsCounter, 8581 mSDsluCounter, 19518 mSDsCounter, 0 mSdLazyCounter, 17798 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8581 SdHoareTripleChecker+Valid, 22530 SdHoareTripleChecker+Invalid, 17845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 17798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:59,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8581 Valid, 22530 Invalid, 17845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 17798 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-17 17:07:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2021-12-17 17:08:00,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 2778. [2021-12-17 17:08:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.4235680408609996) internal successors, (3902), 2777 states have internal predecessors, (3902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:00,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3902 transitions. [2021-12-17 17:08:00,419 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3902 transitions. Word has length 132 [2021-12-17 17:08:00,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:00,419 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3902 transitions. [2021-12-17 17:08:00,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:00,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3902 transitions. [2021-12-17 17:08:00,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 17:08:00,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:00,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:00,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-12-17 17:08:00,421 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:00,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:00,421 INFO L85 PathProgramCache]: Analyzing trace with hash -265786977, now seen corresponding path program 1 times [2021-12-17 17:08:00,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:00,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067413760] [2021-12-17 17:08:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:00,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:00,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:00,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067413760] [2021-12-17 17:08:00,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067413760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:00,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:00,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:00,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677045027] [2021-12-17 17:08:00,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:00,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:00,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:00,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:00,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:00,525 INFO L87 Difference]: Start difference. First operand 2778 states and 3902 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:04,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:04,482 INFO L93 Difference]: Finished difference Result 4800 states and 6784 transitions. [2021-12-17 17:08:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:04,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-17 17:08:04,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:04,487 INFO L225 Difference]: With dead ends: 4800 [2021-12-17 17:08:04,487 INFO L226 Difference]: Without dead ends: 4570 [2021-12-17 17:08:04,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:08:04,488 INFO L933 BasicCegarLoop]: 2202 mSDtfsCounter, 8371 mSDsluCounter, 7017 mSDsCounter, 0 mSdLazyCounter, 7496 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8371 SdHoareTripleChecker+Valid, 9219 SdHoareTripleChecker+Invalid, 7652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 7496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:04,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8371 Valid, 9219 Invalid, 7652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 7496 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:08:04,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-12-17 17:08:04,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 2770. [2021-12-17 17:08:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2733 states have (on average 1.4240761068422978) internal successors, (3892), 2769 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:04,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3892 transitions. [2021-12-17 17:08:04,989 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3892 transitions. Word has length 132 [2021-12-17 17:08:04,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:04,989 INFO L470 AbstractCegarLoop]: Abstraction has 2770 states and 3892 transitions. [2021-12-17 17:08:04,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3892 transitions. [2021-12-17 17:08:04,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:04,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:04,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:04,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-12-17 17:08:04,991 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:04,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:04,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1714186958, now seen corresponding path program 1 times [2021-12-17 17:08:04,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:04,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510548002] [2021-12-17 17:08:04,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:04,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:05,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:05,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510548002] [2021-12-17 17:08:05,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510548002] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:05,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:05,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:05,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527914784] [2021-12-17 17:08:05,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:05,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:05,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:05,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:05,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:05,082 INFO L87 Difference]: Start difference. First operand 2770 states and 3892 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:08,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:08,825 INFO L93 Difference]: Finished difference Result 4794 states and 6765 transitions. [2021-12-17 17:08:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:08,825 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:08,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:08,830 INFO L225 Difference]: With dead ends: 4794 [2021-12-17 17:08:08,830 INFO L226 Difference]: Without dead ends: 4570 [2021-12-17 17:08:08,831 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 [2021-12-17 17:08:08,831 INFO L933 BasicCegarLoop]: 2147 mSDtfsCounter, 5818 mSDsluCounter, 6824 mSDsCounter, 0 mSdLazyCounter, 7264 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5818 SdHoareTripleChecker+Valid, 8971 SdHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 7264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:08,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5818 Valid, 8971 Invalid, 7370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 7264 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:08:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-12-17 17:08:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 2770. [2021-12-17 17:08:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2733 states have (on average 1.4237102085620197) internal successors, (3891), 2769 states have internal predecessors, (3891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3891 transitions. [2021-12-17 17:08:09,402 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3891 transitions. Word has length 133 [2021-12-17 17:08:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:09,402 INFO L470 AbstractCegarLoop]: Abstraction has 2770 states and 3891 transitions. [2021-12-17 17:08:09,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3891 transitions. [2021-12-17 17:08:09,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:09,405 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:09,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:09,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-12-17 17:08:09,405 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:09,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:09,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2024689547, now seen corresponding path program 1 times [2021-12-17 17:08:09,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:09,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510094634] [2021-12-17 17:08:09,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:09,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:09,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:09,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:09,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510094634] [2021-12-17 17:08:09,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510094634] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:09,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:09,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:09,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203589721] [2021-12-17 17:08:09,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:09,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:09,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:09,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:09,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:09,502 INFO L87 Difference]: Start difference. First operand 2770 states and 3891 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:13,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:13,317 INFO L93 Difference]: Finished difference Result 4785 states and 6755 transitions. [2021-12-17 17:08:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:13,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:13,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:13,322 INFO L225 Difference]: With dead ends: 4785 [2021-12-17 17:08:13,322 INFO L226 Difference]: Without dead ends: 4570 [2021-12-17 17:08:13,322 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 [2021-12-17 17:08:13,323 INFO L933 BasicCegarLoop]: 2011 mSDtfsCounter, 11954 mSDsluCounter, 6618 mSDsCounter, 0 mSdLazyCounter, 6928 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11954 SdHoareTripleChecker+Valid, 8629 SdHoareTripleChecker+Invalid, 7145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 6928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:13,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11954 Valid, 8629 Invalid, 7145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 6928 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:08:13,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-12-17 17:08:13,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 2770. [2021-12-17 17:08:13,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2733 states have (on average 1.4233443102817416) internal successors, (3890), 2769 states have internal predecessors, (3890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3890 transitions. [2021-12-17 17:08:13,866 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3890 transitions. Word has length 133 [2021-12-17 17:08:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:13,866 INFO L470 AbstractCegarLoop]: Abstraction has 2770 states and 3890 transitions. [2021-12-17 17:08:13,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:13,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3890 transitions. [2021-12-17 17:08:13,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:13,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:13,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:13,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-12-17 17:08:13,868 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:13,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:13,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1121218991, now seen corresponding path program 1 times [2021-12-17 17:08:13,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:13,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351015152] [2021-12-17 17:08:13,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:13,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:13,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:13,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351015152] [2021-12-17 17:08:13,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351015152] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:13,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:13,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:13,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971115486] [2021-12-17 17:08:13,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:13,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:13,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:13,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:13,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:13,971 INFO L87 Difference]: Start difference. First operand 2770 states and 3890 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:18,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:18,043 INFO L93 Difference]: Finished difference Result 4680 states and 6583 transitions. [2021-12-17 17:08:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:18,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:18,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:18,048 INFO L225 Difference]: With dead ends: 4680 [2021-12-17 17:08:18,048 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:08:18,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:08:18,049 INFO L933 BasicCegarLoop]: 1819 mSDtfsCounter, 11230 mSDsluCounter, 7419 mSDsCounter, 0 mSdLazyCounter, 7606 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11230 SdHoareTripleChecker+Valid, 9238 SdHoareTripleChecker+Invalid, 7953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 7606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:18,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11230 Valid, 9238 Invalid, 7953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 7606 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:08:18,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:08:18,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2770. [2021-12-17 17:08:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2733 states have (on average 1.4229784120014637) internal successors, (3889), 2769 states have internal predecessors, (3889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3889 transitions. [2021-12-17 17:08:18,605 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3889 transitions. Word has length 133 [2021-12-17 17:08:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:18,605 INFO L470 AbstractCegarLoop]: Abstraction has 2770 states and 3889 transitions. [2021-12-17 17:08:18,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:18,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3889 transitions. [2021-12-17 17:08:18,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:18,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:18,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:18,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-12-17 17:08:18,608 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:18,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:18,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1221739080, now seen corresponding path program 1 times [2021-12-17 17:08:18,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:18,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385633296] [2021-12-17 17:08:18,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:18,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:18,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:18,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385633296] [2021-12-17 17:08:18,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385633296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:18,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:18,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:18,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055929055] [2021-12-17 17:08:18,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:18,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:18,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:18,700 INFO L87 Difference]: Start difference. First operand 2770 states and 3889 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:22,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:22,528 INFO L93 Difference]: Finished difference Result 4780 states and 6748 transitions. [2021-12-17 17:08:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:22,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:22,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:22,533 INFO L225 Difference]: With dead ends: 4780 [2021-12-17 17:08:22,533 INFO L226 Difference]: Without dead ends: 4570 [2021-12-17 17:08:22,533 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 [2021-12-17 17:08:22,534 INFO L933 BasicCegarLoop]: 2129 mSDtfsCounter, 5823 mSDsluCounter, 6913 mSDsCounter, 0 mSdLazyCounter, 7303 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5823 SdHoareTripleChecker+Valid, 9042 SdHoareTripleChecker+Invalid, 7409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 7303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:22,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5823 Valid, 9042 Invalid, 7409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 7303 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:08:22,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-12-17 17:08:23,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 2770. [2021-12-17 17:08:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2733 states have (on average 1.4226125137211856) internal successors, (3888), 2769 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3888 transitions. [2021-12-17 17:08:23,115 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3888 transitions. Word has length 133 [2021-12-17 17:08:23,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:23,116 INFO L470 AbstractCegarLoop]: Abstraction has 2770 states and 3888 transitions. [2021-12-17 17:08:23,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3888 transitions. [2021-12-17 17:08:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:23,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:23,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:23,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-12-17 17:08:23,118 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:23,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1080156407, now seen corresponding path program 1 times [2021-12-17 17:08:23,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:23,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272651622] [2021-12-17 17:08:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:23,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:23,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:23,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272651622] [2021-12-17 17:08:23,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272651622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:23,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:23,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:08:23,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991352529] [2021-12-17 17:08:23,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:23,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:08:23,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:23,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:08:23,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:08:23,277 INFO L87 Difference]: Start difference. First operand 2770 states and 3888 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:29,328 INFO L93 Difference]: Finished difference Result 5784 states and 8184 transitions. [2021-12-17 17:08:29,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:08:29,328 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:29,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:29,333 INFO L225 Difference]: With dead ends: 5784 [2021-12-17 17:08:29,333 INFO L226 Difference]: Without dead ends: 5582 [2021-12-17 17:08:29,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:08:29,334 INFO L933 BasicCegarLoop]: 1945 mSDtfsCounter, 18666 mSDsluCounter, 6814 mSDsCounter, 0 mSdLazyCounter, 7271 mSolverCounterSat, 1990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18666 SdHoareTripleChecker+Valid, 8759 SdHoareTripleChecker+Invalid, 9261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1990 IncrementalHoareTripleChecker+Valid, 7271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:29,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18666 Valid, 8759 Invalid, 9261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1990 Valid, 7271 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-17 17:08:29,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5582 states. [2021-12-17 17:08:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5582 to 2774. [2021-12-17 17:08:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.421994884910486) internal successors, (3892), 2773 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:29,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3892 transitions. [2021-12-17 17:08:29,943 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3892 transitions. Word has length 133 [2021-12-17 17:08:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:29,943 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3892 transitions. [2021-12-17 17:08:29,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3892 transitions. [2021-12-17 17:08:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:29,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:29,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:29,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-12-17 17:08:29,946 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:29,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1713649960, now seen corresponding path program 1 times [2021-12-17 17:08:29,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:29,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448113267] [2021-12-17 17:08:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:29,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:30,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:30,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:30,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448113267] [2021-12-17 17:08:30,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448113267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:30,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:30,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:30,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82790158] [2021-12-17 17:08:30,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:30,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:30,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:30,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:30,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:30,054 INFO L87 Difference]: Start difference. First operand 2774 states and 3892 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:34,261 INFO L93 Difference]: Finished difference Result 4680 states and 6580 transitions. [2021-12-17 17:08:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:34,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:34,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:34,265 INFO L225 Difference]: With dead ends: 4680 [2021-12-17 17:08:34,265 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:08:34,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:08:34,266 INFO L933 BasicCegarLoop]: 1889 mSDtfsCounter, 11096 mSDsluCounter, 7627 mSDsCounter, 0 mSdLazyCounter, 7818 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11096 SdHoareTripleChecker+Valid, 9516 SdHoareTripleChecker+Invalid, 8162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 7818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:34,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11096 Valid, 9516 Invalid, 8162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 7818 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:08:34,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:08:34,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2774. [2021-12-17 17:08:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4216295213737669) internal successors, (3891), 2773 states have internal predecessors, (3891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:34,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3891 transitions. [2021-12-17 17:08:34,851 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3891 transitions. Word has length 133 [2021-12-17 17:08:34,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:34,851 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3891 transitions. [2021-12-17 17:08:34,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:34,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3891 transitions. [2021-12-17 17:08:34,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:34,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:34,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:34,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-12-17 17:08:34,854 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:34,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1917407056, now seen corresponding path program 1 times [2021-12-17 17:08:34,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:34,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339870947] [2021-12-17 17:08:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:34,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:34,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:34,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339870947] [2021-12-17 17:08:34,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339870947] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:34,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:34,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:34,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149307187] [2021-12-17 17:08:34,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:34,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:34,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:34,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:34,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:34,952 INFO L87 Difference]: Start difference. First operand 2774 states and 3891 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:38,749 INFO L93 Difference]: Finished difference Result 4680 states and 6579 transitions. [2021-12-17 17:08:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:38,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:38,753 INFO L225 Difference]: With dead ends: 4680 [2021-12-17 17:08:38,753 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:08:38,754 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 [2021-12-17 17:08:38,754 INFO L933 BasicCegarLoop]: 1903 mSDtfsCounter, 6152 mSDsluCounter, 6023 mSDsCounter, 0 mSdLazyCounter, 6599 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6152 SdHoareTripleChecker+Valid, 7926 SdHoareTripleChecker+Invalid, 6810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 6599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:38,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6152 Valid, 7926 Invalid, 6810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 6599 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:08:38,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:08:39,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2774. [2021-12-17 17:08:39,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.421264157837048) internal successors, (3890), 2773 states have internal predecessors, (3890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:39,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3890 transitions. [2021-12-17 17:08:39,365 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3890 transitions. Word has length 133 [2021-12-17 17:08:39,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:39,365 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3890 transitions. [2021-12-17 17:08:39,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3890 transitions. [2021-12-17 17:08:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:39,368 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:39,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:39,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-12-17 17:08:39,368 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:39,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:39,368 INFO L85 PathProgramCache]: Analyzing trace with hash -234363552, now seen corresponding path program 1 times [2021-12-17 17:08:39,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:39,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407093769] [2021-12-17 17:08:39,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:39,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:39,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:39,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407093769] [2021-12-17 17:08:39,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407093769] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:39,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:39,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:39,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006830760] [2021-12-17 17:08:39,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:39,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:39,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:39,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:39,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:39,457 INFO L87 Difference]: Start difference. First operand 2774 states and 3890 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:43,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:43,212 INFO L93 Difference]: Finished difference Result 4679 states and 6576 transitions. [2021-12-17 17:08:43,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:43,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:43,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:43,217 INFO L225 Difference]: With dead ends: 4679 [2021-12-17 17:08:43,217 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:08:43,218 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 [2021-12-17 17:08:43,218 INFO L933 BasicCegarLoop]: 1826 mSDtfsCounter, 10501 mSDsluCounter, 5888 mSDsCounter, 0 mSdLazyCounter, 6407 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10501 SdHoareTripleChecker+Valid, 7714 SdHoareTripleChecker+Invalid, 6796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 6407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:43,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10501 Valid, 7714 Invalid, 6796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 6407 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:08:43,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:08:43,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2774. [2021-12-17 17:08:43,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4208987943003288) internal successors, (3889), 2773 states have internal predecessors, (3889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3889 transitions. [2021-12-17 17:08:43,826 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3889 transitions. Word has length 133 [2021-12-17 17:08:43,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:43,826 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3889 transitions. [2021-12-17 17:08:43,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:43,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3889 transitions. [2021-12-17 17:08:43,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:43,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:43,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:43,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-12-17 17:08:43,829 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:43,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:43,829 INFO L85 PathProgramCache]: Analyzing trace with hash -253590190, now seen corresponding path program 1 times [2021-12-17 17:08:43,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:43,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628117765] [2021-12-17 17:08:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:43,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:43,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:43,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:43,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628117765] [2021-12-17 17:08:43,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628117765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:43,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:43,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:43,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328842180] [2021-12-17 17:08:43,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:43,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:43,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:43,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:43,947 INFO L87 Difference]: Start difference. First operand 2774 states and 3889 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:47,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:47,954 INFO L93 Difference]: Finished difference Result 4793 states and 6755 transitions. [2021-12-17 17:08:47,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:47,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:47,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:47,959 INFO L225 Difference]: With dead ends: 4793 [2021-12-17 17:08:47,959 INFO L226 Difference]: Without dead ends: 4578 [2021-12-17 17:08:47,959 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 [2021-12-17 17:08:47,960 INFO L933 BasicCegarLoop]: 2159 mSDtfsCounter, 8544 mSDsluCounter, 6880 mSDsCounter, 0 mSdLazyCounter, 7227 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8544 SdHoareTripleChecker+Valid, 9039 SdHoareTripleChecker+Invalid, 7385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 7227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:47,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8544 Valid, 9039 Invalid, 7385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 7227 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:08:47,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2021-12-17 17:08:48,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 2774. [2021-12-17 17:08:48,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4205334307636097) internal successors, (3888), 2773 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3888 transitions. [2021-12-17 17:08:48,529 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3888 transitions. Word has length 133 [2021-12-17 17:08:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:48,529 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3888 transitions. [2021-12-17 17:08:48,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3888 transitions. [2021-12-17 17:08:48,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:48,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:48,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:48,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-12-17 17:08:48,532 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:48,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:48,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1665449752, now seen corresponding path program 1 times [2021-12-17 17:08:48,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:48,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615173716] [2021-12-17 17:08:48,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:48,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:48,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:48,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615173716] [2021-12-17 17:08:48,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615173716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:48,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:48,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:08:48,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803243939] [2021-12-17 17:08:48,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:48,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:48,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:48,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:48,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:48,652 INFO L87 Difference]: Start difference. First operand 2774 states and 3888 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:52,766 INFO L93 Difference]: Finished difference Result 4788 states and 6748 transitions. [2021-12-17 17:08:52,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:08:52,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:08:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:52,771 INFO L225 Difference]: With dead ends: 4788 [2021-12-17 17:08:52,771 INFO L226 Difference]: Without dead ends: 4578 [2021-12-17 17:08:52,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:08:52,772 INFO L933 BasicCegarLoop]: 2141 mSDtfsCounter, 11105 mSDsluCounter, 6949 mSDsCounter, 0 mSdLazyCounter, 7268 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11105 SdHoareTripleChecker+Valid, 9090 SdHoareTripleChecker+Invalid, 7477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 7268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:52,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11105 Valid, 9090 Invalid, 7477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 7268 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:08:52,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2021-12-17 17:08:53,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 2774. [2021-12-17 17:08:53,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.4201680672268908) internal successors, (3887), 2773 states have internal predecessors, (3887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3887 transitions. [2021-12-17 17:08:53,380 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3887 transitions. Word has length 133 [2021-12-17 17:08:53,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:53,380 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3887 transitions. [2021-12-17 17:08:53,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:53,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3887 transitions. [2021-12-17 17:08:53,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:08:53,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:53,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:53,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-12-17 17:08:53,382 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:08:53,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:53,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1229502976, now seen corresponding path program 1 times [2021-12-17 17:08:53,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:53,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92401285] [2021-12-17 17:08:53,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:53,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:53,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:53,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:53,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92401285] [2021-12-17 17:08:53,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92401285] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:53,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:53,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:08:53,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645847688] [2021-12-17 17:08:53,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:53,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:08:53,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:53,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:08:53,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:08:53,536 INFO L87 Difference]: Start difference. First operand 2774 states and 3887 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:00,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:00,192 INFO L93 Difference]: Finished difference Result 5776 states and 8168 transitions. [2021-12-17 17:09:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:09:00,192 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:00,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:00,198 INFO L225 Difference]: With dead ends: 5776 [2021-12-17 17:09:00,198 INFO L226 Difference]: Without dead ends: 5578 [2021-12-17 17:09:00,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:09:00,199 INFO L933 BasicCegarLoop]: 1967 mSDtfsCounter, 15265 mSDsluCounter, 8801 mSDsCounter, 0 mSdLazyCounter, 8991 mSolverCounterSat, 1656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15265 SdHoareTripleChecker+Valid, 10768 SdHoareTripleChecker+Invalid, 10647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1656 IncrementalHoareTripleChecker+Valid, 8991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:00,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15265 Valid, 10768 Invalid, 10647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1656 Valid, 8991 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-17 17:09:00,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2021-12-17 17:09:00,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 2778. [2021-12-17 17:09:00,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.4195549069682598) internal successors, (3891), 2777 states have internal predecessors, (3891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:00,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3891 transitions. [2021-12-17 17:09:00,799 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3891 transitions. Word has length 133 [2021-12-17 17:09:00,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:00,799 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3891 transitions. [2021-12-17 17:09:00,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:00,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3891 transitions. [2021-12-17 17:09:00,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:00,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:00,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:00,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-12-17 17:09:00,801 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:00,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:00,801 INFO L85 PathProgramCache]: Analyzing trace with hash 558582327, now seen corresponding path program 1 times [2021-12-17 17:09:00,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:00,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423455167] [2021-12-17 17:09:00,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:00,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:00,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:00,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423455167] [2021-12-17 17:09:00,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423455167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:00,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:00,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:09:00,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37479730] [2021-12-17 17:09:00,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:00,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:09:00,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:00,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:09:00,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:09:00,941 INFO L87 Difference]: Start difference. First operand 2778 states and 3891 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:05,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:05,267 INFO L93 Difference]: Finished difference Result 4679 states and 6571 transitions. [2021-12-17 17:09:05,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:09:05,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:05,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:05,271 INFO L225 Difference]: With dead ends: 4679 [2021-12-17 17:09:05,271 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:09:05,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:09:05,272 INFO L933 BasicCegarLoop]: 1931 mSDtfsCounter, 11010 mSDsluCounter, 7754 mSDsCounter, 0 mSdLazyCounter, 7862 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11010 SdHoareTripleChecker+Valid, 9685 SdHoareTripleChecker+Invalid, 8204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 7862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:05,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11010 Valid, 9685 Invalid, 8204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 7862 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:09:05,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:09:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2778. [2021-12-17 17:09:05,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.4191900766143744) internal successors, (3890), 2777 states have internal predecessors, (3890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3890 transitions. [2021-12-17 17:09:05,870 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3890 transitions. Word has length 133 [2021-12-17 17:09:05,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:05,870 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3890 transitions. [2021-12-17 17:09:05,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:05,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3890 transitions. [2021-12-17 17:09:05,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:05,872 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:05,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:05,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-12-17 17:09:05,873 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:05,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1390851076, now seen corresponding path program 1 times [2021-12-17 17:09:05,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:05,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561910767] [2021-12-17 17:09:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:05,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:05,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:05,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561910767] [2021-12-17 17:09:05,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561910767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:05,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:05,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:09:05,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882264599] [2021-12-17 17:09:05,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:05,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:09:05,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:05,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:09:05,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:09:05,970 INFO L87 Difference]: Start difference. First operand 2778 states and 3890 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:09,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:09,878 INFO L93 Difference]: Finished difference Result 4679 states and 6570 transitions. [2021-12-17 17:09:09,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:09:09,879 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:09,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:09,883 INFO L225 Difference]: With dead ends: 4679 [2021-12-17 17:09:09,883 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:09:09,884 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 [2021-12-17 17:09:09,884 INFO L933 BasicCegarLoop]: 1933 mSDtfsCounter, 6090 mSDsluCounter, 6115 mSDsCounter, 0 mSdLazyCounter, 6650 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6090 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 6859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 6650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:09,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6090 Valid, 8048 Invalid, 6859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 6650 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:09:09,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:09:10,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2778. [2021-12-17 17:09:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2741 states have (on average 1.418825246260489) internal successors, (3889), 2777 states have internal predecessors, (3889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3889 transitions. [2021-12-17 17:09:10,516 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3889 transitions. Word has length 133 [2021-12-17 17:09:10,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:10,516 INFO L470 AbstractCegarLoop]: Abstraction has 2778 states and 3889 transitions. [2021-12-17 17:09:10,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:10,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3889 transitions. [2021-12-17 17:09:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:10,518 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:10,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:10,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-12-17 17:09:10,519 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:10,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:10,519 INFO L85 PathProgramCache]: Analyzing trace with hash 837141690, now seen corresponding path program 1 times [2021-12-17 17:09:10,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:10,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351601251] [2021-12-17 17:09:10,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:10,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:10,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:10,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351601251] [2021-12-17 17:09:10,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351601251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:10,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:10,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:09:10,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541507841] [2021-12-17 17:09:10,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:10,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:09:10,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:09:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:09:10,664 INFO L87 Difference]: Start difference. First operand 2778 states and 3889 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:17,313 INFO L93 Difference]: Finished difference Result 5784 states and 8170 transitions. [2021-12-17 17:09:17,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:09:17,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:17,318 INFO L225 Difference]: With dead ends: 5784 [2021-12-17 17:09:17,319 INFO L226 Difference]: Without dead ends: 5582 [2021-12-17 17:09:17,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:09:17,319 INFO L933 BasicCegarLoop]: 1965 mSDtfsCounter, 15297 mSDsluCounter, 8787 mSDsCounter, 0 mSdLazyCounter, 8935 mSolverCounterSat, 1665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15297 SdHoareTripleChecker+Valid, 10752 SdHoareTripleChecker+Invalid, 10600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1665 IncrementalHoareTripleChecker+Valid, 8935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:17,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15297 Valid, 10752 Invalid, 10600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1665 Valid, 8935 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-17 17:09:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5582 states. [2021-12-17 17:09:17,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5582 to 2782. [2021-12-17 17:09:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.4182149362477232) internal successors, (3893), 2781 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:17,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3893 transitions. [2021-12-17 17:09:17,963 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3893 transitions. Word has length 133 [2021-12-17 17:09:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:17,963 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3893 transitions. [2021-12-17 17:09:17,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3893 transitions. [2021-12-17 17:09:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:17,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:17,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:17,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-12-17 17:09:17,966 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:17,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:17,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1469456552, now seen corresponding path program 1 times [2021-12-17 17:09:17,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:17,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576838298] [2021-12-17 17:09:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:17,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:18,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:18,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576838298] [2021-12-17 17:09:18,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576838298] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:18,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:18,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:09:18,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891469691] [2021-12-17 17:09:18,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:18,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:09:18,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:18,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:09:18,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:09:18,076 INFO L87 Difference]: Start difference. First operand 2782 states and 3893 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:22,440 INFO L93 Difference]: Finished difference Result 4680 states and 6568 transitions. [2021-12-17 17:09:22,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:09:22,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:22,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:22,444 INFO L225 Difference]: With dead ends: 4680 [2021-12-17 17:09:22,444 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:09:22,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:09:22,445 INFO L933 BasicCegarLoop]: 1848 mSDtfsCounter, 11141 mSDsluCounter, 7507 mSDsCounter, 0 mSdLazyCounter, 7611 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11141 SdHoareTripleChecker+Valid, 9355 SdHoareTripleChecker+Invalid, 7955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 7611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:22,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11141 Valid, 9355 Invalid, 7955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 7611 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:09:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:09:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2782. [2021-12-17 17:09:23,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.4178506375227686) internal successors, (3892), 2781 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3892 transitions. [2021-12-17 17:09:23,081 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3892 transitions. Word has length 133 [2021-12-17 17:09:23,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:23,081 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3892 transitions. [2021-12-17 17:09:23,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3892 transitions. [2021-12-17 17:09:23,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:23,084 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:23,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:23,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-12-17 17:09:23,084 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:23,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1945126698, now seen corresponding path program 1 times [2021-12-17 17:09:23,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:23,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54384086] [2021-12-17 17:09:23,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:23,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:23,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:23,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:23,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54384086] [2021-12-17 17:09:23,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54384086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:23,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:23,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:09:23,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758336546] [2021-12-17 17:09:23,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:23,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:09:23,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:23,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:09:23,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:09:23,175 INFO L87 Difference]: Start difference. First operand 2782 states and 3892 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:27,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:27,069 INFO L93 Difference]: Finished difference Result 4679 states and 6566 transitions. [2021-12-17 17:09:27,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:09:27,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:27,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:27,075 INFO L225 Difference]: With dead ends: 4679 [2021-12-17 17:09:27,075 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:09:27,076 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 [2021-12-17 17:09:27,076 INFO L933 BasicCegarLoop]: 1919 mSDtfsCounter, 6114 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 6638 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6114 SdHoareTripleChecker+Valid, 8087 SdHoareTripleChecker+Invalid, 6847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 6638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:27,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6114 Valid, 8087 Invalid, 6847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 6638 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:09:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:09:27,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2782. [2021-12-17 17:09:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.4174863387978143) internal successors, (3891), 2781 states have internal predecessors, (3891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3891 transitions. [2021-12-17 17:09:27,736 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3891 transitions. Word has length 133 [2021-12-17 17:09:27,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:27,737 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3891 transitions. [2021-12-17 17:09:27,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:27,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3891 transitions. [2021-12-17 17:09:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:27,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:27,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:27,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-12-17 17:09:27,739 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:27,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:27,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1517571849, now seen corresponding path program 1 times [2021-12-17 17:09:27,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:27,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16167486] [2021-12-17 17:09:27,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:27,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:27,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:27,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:27,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16167486] [2021-12-17 17:09:27,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16167486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:27,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:27,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:09:27,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951415154] [2021-12-17 17:09:27,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:27,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:09:27,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:27,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:09:27,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:09:27,883 INFO L87 Difference]: Start difference. First operand 2782 states and 3891 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:34,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:34,838 INFO L93 Difference]: Finished difference Result 5774 states and 8159 transitions. [2021-12-17 17:09:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:09:34,838 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:34,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:34,843 INFO L225 Difference]: With dead ends: 5774 [2021-12-17 17:09:34,843 INFO L226 Difference]: Without dead ends: 5577 [2021-12-17 17:09:34,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:09:34,844 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 17151 mSDsluCounter, 9094 mSDsCounter, 0 mSdLazyCounter, 9226 mSolverCounterSat, 1948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17151 SdHoareTripleChecker+Valid, 11128 SdHoareTripleChecker+Invalid, 11174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1948 IncrementalHoareTripleChecker+Valid, 9226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:34,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17151 Valid, 11128 Invalid, 11174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1948 Valid, 9226 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-17 17:09:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5577 states. [2021-12-17 17:09:35,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5577 to 2786. [2021-12-17 17:09:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2749 states have (on average 1.4168788650418334) internal successors, (3895), 2785 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:35,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3895 transitions. [2021-12-17 17:09:35,508 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3895 transitions. Word has length 133 [2021-12-17 17:09:35,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:35,508 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 3895 transitions. [2021-12-17 17:09:35,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:35,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3895 transitions. [2021-12-17 17:09:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:35,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:35,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:35,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-12-17 17:09:35,510 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:35,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash 606569676, now seen corresponding path program 1 times [2021-12-17 17:09:35,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:35,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248103652] [2021-12-17 17:09:35,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:35,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:35,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:35,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248103652] [2021-12-17 17:09:35,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248103652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:35,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:35,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:09:35,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819432709] [2021-12-17 17:09:35,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:35,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:09:35,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:35,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:09:35,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:09:35,606 INFO L87 Difference]: Start difference. First operand 2786 states and 3895 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:39,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:39,893 INFO L93 Difference]: Finished difference Result 4679 states and 6564 transitions. [2021-12-17 17:09:39,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:09:39,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:39,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:39,898 INFO L225 Difference]: With dead ends: 4679 [2021-12-17 17:09:39,898 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:09:39,899 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 [2021-12-17 17:09:39,899 INFO L933 BasicCegarLoop]: 1919 mSDtfsCounter, 11978 mSDsluCounter, 6073 mSDsCounter, 0 mSdLazyCounter, 6583 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11978 SdHoareTripleChecker+Valid, 7992 SdHoareTripleChecker+Invalid, 7007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 6583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:39,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11978 Valid, 7992 Invalid, 7007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 6583 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:09:39,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:09:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2786. [2021-12-17 17:09:40,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2749 states have (on average 1.4165150963986903) internal successors, (3894), 2785 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3894 transitions. [2021-12-17 17:09:40,593 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3894 transitions. Word has length 133 [2021-12-17 17:09:40,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:40,593 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 3894 transitions. [2021-12-17 17:09:40,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3894 transitions. [2021-12-17 17:09:40,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:40,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:40,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:40,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-12-17 17:09:40,596 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:40,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:40,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1973686610, now seen corresponding path program 1 times [2021-12-17 17:09:40,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:40,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328409317] [2021-12-17 17:09:40,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:40,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:40,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:40,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328409317] [2021-12-17 17:09:40,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328409317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:40,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:40,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:09:40,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691718303] [2021-12-17 17:09:40,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:40,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:09:40,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:40,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:09:40,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:09:40,695 INFO L87 Difference]: Start difference. First operand 2786 states and 3894 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:45,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:45,222 INFO L93 Difference]: Finished difference Result 4688 states and 6574 transitions. [2021-12-17 17:09:45,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:09:45,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:45,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:45,227 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:09:45,227 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:09:45,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:09:45,228 INFO L933 BasicCegarLoop]: 1901 mSDtfsCounter, 11030 mSDsluCounter, 7663 mSDsCounter, 0 mSdLazyCounter, 7777 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11030 SdHoareTripleChecker+Valid, 9564 SdHoareTripleChecker+Invalid, 8119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 7777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:45,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11030 Valid, 9564 Invalid, 8119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 7777 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:09:45,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:09:45,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2786. [2021-12-17 17:09:45,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2749 states have (on average 1.4157875591124045) internal successors, (3892), 2785 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:45,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3892 transitions. [2021-12-17 17:09:45,897 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3892 transitions. Word has length 133 [2021-12-17 17:09:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:45,897 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 3892 transitions. [2021-12-17 17:09:45,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:45,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3892 transitions. [2021-12-17 17:09:45,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:45,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:45,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:45,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-12-17 17:09:45,900 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:45,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:45,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1336943961, now seen corresponding path program 1 times [2021-12-17 17:09:45,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:45,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035995098] [2021-12-17 17:09:45,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:45,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:46,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:46,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:46,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035995098] [2021-12-17 17:09:46,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035995098] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:46,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:46,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:09:46,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278414473] [2021-12-17 17:09:46,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:46,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:09:46,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:46,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:09:46,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:09:46,054 INFO L87 Difference]: Start difference. First operand 2786 states and 3892 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:52,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:52,895 INFO L93 Difference]: Finished difference Result 5804 states and 8192 transitions. [2021-12-17 17:09:52,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:09:52,896 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:52,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:52,901 INFO L225 Difference]: With dead ends: 5804 [2021-12-17 17:09:52,901 INFO L226 Difference]: Without dead ends: 5592 [2021-12-17 17:09:52,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:09:52,902 INFO L933 BasicCegarLoop]: 1952 mSDtfsCounter, 15350 mSDsluCounter, 8734 mSDsCounter, 0 mSdLazyCounter, 8849 mSolverCounterSat, 1676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15350 SdHoareTripleChecker+Valid, 10686 SdHoareTripleChecker+Invalid, 10525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1676 IncrementalHoareTripleChecker+Valid, 8849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:52,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15350 Valid, 10686 Invalid, 10525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1676 Valid, 8849 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-17 17:09:52,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2021-12-17 17:09:53,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 2794. [2021-12-17 17:09:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2757 states have (on average 1.4145810663764962) internal successors, (3900), 2793 states have internal predecessors, (3900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:53,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3900 transitions. [2021-12-17 17:09:53,590 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3900 transitions. Word has length 133 [2021-12-17 17:09:53,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:53,590 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3900 transitions. [2021-12-17 17:09:53,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:53,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3900 transitions. [2021-12-17 17:09:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:53,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:53,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:53,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-12-17 17:09:53,592 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:53,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:53,592 INFO L85 PathProgramCache]: Analyzing trace with hash 968841786, now seen corresponding path program 1 times [2021-12-17 17:09:53,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:53,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813248800] [2021-12-17 17:09:53,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:53,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:53,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:53,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813248800] [2021-12-17 17:09:53,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813248800] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:53,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:53,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:09:53,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246135404] [2021-12-17 17:09:53,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:53,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:09:53,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:53,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:09:53,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:09:53,697 INFO L87 Difference]: Start difference. First operand 2794 states and 3900 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:58,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:58,062 INFO L93 Difference]: Finished difference Result 4694 states and 6577 transitions. [2021-12-17 17:09:58,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:09:58,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:09:58,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:58,067 INFO L225 Difference]: With dead ends: 4694 [2021-12-17 17:09:58,067 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:09:58,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:09:58,069 INFO L933 BasicCegarLoop]: 1833 mSDtfsCounter, 11154 mSDsluCounter, 7458 mSDsCounter, 0 mSdLazyCounter, 7533 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11154 SdHoareTripleChecker+Valid, 9291 SdHoareTripleChecker+Invalid, 7877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 7533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:58,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11154 Valid, 9291 Invalid, 7877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 7533 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:09:58,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:09:58,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2794. [2021-12-17 17:09:58,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2757 states have (on average 1.4138556401886109) internal successors, (3898), 2793 states have internal predecessors, (3898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3898 transitions. [2021-12-17 17:09:58,756 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3898 transitions. Word has length 133 [2021-12-17 17:09:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:58,756 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3898 transitions. [2021-12-17 17:09:58,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:58,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3898 transitions. [2021-12-17 17:09:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:09:58,758 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:58,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:58,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-12-17 17:09:58,758 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:09:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:58,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1377687014, now seen corresponding path program 1 times [2021-12-17 17:09:58,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:58,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327712864] [2021-12-17 17:09:58,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:58,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:58,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:58,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327712864] [2021-12-17 17:09:58,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327712864] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:58,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:58,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:09:58,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271426311] [2021-12-17 17:09:58,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:58,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:09:58,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:58,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:09:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:09:58,849 INFO L87 Difference]: Start difference. First operand 2794 states and 3898 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:02,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:02,931 INFO L93 Difference]: Finished difference Result 4852 states and 6807 transitions. [2021-12-17 17:10:02,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:10:02,931 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:02,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:02,935 INFO L225 Difference]: With dead ends: 4852 [2021-12-17 17:10:02,935 INFO L226 Difference]: Without dead ends: 4606 [2021-12-17 17:10:02,936 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 [2021-12-17 17:10:02,936 INFO L933 BasicCegarLoop]: 2147 mSDtfsCounter, 8554 mSDsluCounter, 6824 mSDsCounter, 0 mSdLazyCounter, 7153 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8554 SdHoareTripleChecker+Valid, 8971 SdHoareTripleChecker+Invalid, 7311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 7153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:02,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8554 Valid, 8971 Invalid, 7311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 7153 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:10:02,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4606 states. [2021-12-17 17:10:03,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4606 to 2794. [2021-12-17 17:10:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2757 states have (on average 1.4131302140007254) internal successors, (3896), 2793 states have internal predecessors, (3896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3896 transitions. [2021-12-17 17:10:03,614 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3896 transitions. Word has length 133 [2021-12-17 17:10:03,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:03,614 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3896 transitions. [2021-12-17 17:10:03,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:03,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3896 transitions. [2021-12-17 17:10:03,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:03,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:03,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:03,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-12-17 17:10:03,616 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:03,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1025116548, now seen corresponding path program 1 times [2021-12-17 17:10:03,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:03,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371093149] [2021-12-17 17:10:03,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:03,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:03,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:03,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:03,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371093149] [2021-12-17 17:10:03,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371093149] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:03,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:03,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:10:03,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962255610] [2021-12-17 17:10:03,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:03,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:10:03,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:03,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:10:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:10:03,714 INFO L87 Difference]: Start difference. First operand 2794 states and 3896 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:08,235 INFO L93 Difference]: Finished difference Result 4852 states and 6803 transitions. [2021-12-17 17:10:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:10:08,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:08,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:08,240 INFO L225 Difference]: With dead ends: 4852 [2021-12-17 17:10:08,240 INFO L226 Difference]: Without dead ends: 4606 [2021-12-17 17:10:08,241 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 [2021-12-17 17:10:08,241 INFO L933 BasicCegarLoop]: 2015 mSDtfsCounter, 11891 mSDsluCounter, 6616 mSDsCounter, 0 mSdLazyCounter, 6812 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11891 SdHoareTripleChecker+Valid, 8631 SdHoareTripleChecker+Invalid, 7029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 6812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:08,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11891 Valid, 8631 Invalid, 7029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 6812 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:10:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4606 states. [2021-12-17 17:10:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4606 to 2794. [2021-12-17 17:10:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2757 states have (on average 1.41240478781284) internal successors, (3894), 2793 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3894 transitions. [2021-12-17 17:10:08,933 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3894 transitions. Word has length 133 [2021-12-17 17:10:08,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:08,933 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3894 transitions. [2021-12-17 17:10:08,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3894 transitions. [2021-12-17 17:10:08,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:08,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:08,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:08,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-12-17 17:10:08,935 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:08,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1433961776, now seen corresponding path program 1 times [2021-12-17 17:10:08,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:08,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783516023] [2021-12-17 17:10:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:08,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:09,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:09,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783516023] [2021-12-17 17:10:09,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783516023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:09,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:09,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:10:09,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81982173] [2021-12-17 17:10:09,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:09,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:10:09,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:09,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:10:09,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:10:09,040 INFO L87 Difference]: Start difference. First operand 2794 states and 3894 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:13,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:13,466 INFO L93 Difference]: Finished difference Result 4694 states and 6571 transitions. [2021-12-17 17:10:13,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:10:13,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:13,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:13,471 INFO L225 Difference]: With dead ends: 4694 [2021-12-17 17:10:13,471 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:10:13,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:10:13,472 INFO L933 BasicCegarLoop]: 1885 mSDtfsCounter, 11056 mSDsluCounter, 7614 mSDsCounter, 0 mSdLazyCounter, 7649 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11056 SdHoareTripleChecker+Valid, 9499 SdHoareTripleChecker+Invalid, 7991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 7649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:13,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11056 Valid, 9499 Invalid, 7991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 7649 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:10:13,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:10:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2794. [2021-12-17 17:10:14,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2757 states have (on average 1.4116793616249546) internal successors, (3892), 2793 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:14,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3892 transitions. [2021-12-17 17:10:14,193 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3892 transitions. Word has length 133 [2021-12-17 17:10:14,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:14,193 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3892 transitions. [2021-12-17 17:10:14,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:14,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3892 transitions. [2021-12-17 17:10:14,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:14,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:14,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:14,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-12-17 17:10:14,196 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:14,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:14,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1843739966, now seen corresponding path program 1 times [2021-12-17 17:10:14,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:14,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255578104] [2021-12-17 17:10:14,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:14,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:14,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:14,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255578104] [2021-12-17 17:10:14,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255578104] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:14,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:14,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:10:14,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360734582] [2021-12-17 17:10:14,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:14,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:10:14,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:14,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:10:14,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:10:14,291 INFO L87 Difference]: Start difference. First operand 2794 states and 3892 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:18,453 INFO L93 Difference]: Finished difference Result 4978 states and 6975 transitions. [2021-12-17 17:10:18,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:10:18,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:18,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:18,459 INFO L225 Difference]: With dead ends: 4978 [2021-12-17 17:10:18,459 INFO L226 Difference]: Without dead ends: 4658 [2021-12-17 17:10:18,460 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 [2021-12-17 17:10:18,460 INFO L933 BasicCegarLoop]: 2334 mSDtfsCounter, 8125 mSDsluCounter, 7316 mSDsCounter, 0 mSdLazyCounter, 7594 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8125 SdHoareTripleChecker+Valid, 9650 SdHoareTripleChecker+Invalid, 7676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 7594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:18,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8125 Valid, 9650 Invalid, 7676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 7594 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:10:18,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-12-17 17:10:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 2794. [2021-12-17 17:10:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2757 states have (on average 1.4109539354370693) internal successors, (3890), 2793 states have internal predecessors, (3890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:19,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3890 transitions. [2021-12-17 17:10:19,147 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3890 transitions. Word has length 133 [2021-12-17 17:10:19,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:19,147 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3890 transitions. [2021-12-17 17:10:19,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3890 transitions. [2021-12-17 17:10:19,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:19,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:19,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:19,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-12-17 17:10:19,151 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:19,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:19,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2081738852, now seen corresponding path program 1 times [2021-12-17 17:10:19,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:19,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032108317] [2021-12-17 17:10:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:19,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:19,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:19,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032108317] [2021-12-17 17:10:19,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032108317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:19,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:19,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:10:19,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165898853] [2021-12-17 17:10:19,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:19,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:10:19,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:10:19,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:10:19,300 INFO L87 Difference]: Start difference. First operand 2794 states and 3890 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:26,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:26,034 INFO L93 Difference]: Finished difference Result 5804 states and 8180 transitions. [2021-12-17 17:10:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:10:26,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:26,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:26,041 INFO L225 Difference]: With dead ends: 5804 [2021-12-17 17:10:26,041 INFO L226 Difference]: Without dead ends: 5592 [2021-12-17 17:10:26,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:10:26,042 INFO L933 BasicCegarLoop]: 1995 mSDtfsCounter, 15176 mSDsluCounter, 7656 mSDsCounter, 0 mSdLazyCounter, 8037 mSolverCounterSat, 1648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15176 SdHoareTripleChecker+Valid, 9651 SdHoareTripleChecker+Invalid, 9685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1648 IncrementalHoareTripleChecker+Valid, 8037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:26,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15176 Valid, 9651 Invalid, 9685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1648 Valid, 8037 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-17 17:10:26,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2021-12-17 17:10:26,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 2802. [2021-12-17 17:10:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2765 states have (on average 1.4097649186256782) internal successors, (3898), 2801 states have internal predecessors, (3898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3898 transitions. [2021-12-17 17:10:26,788 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3898 transitions. Word has length 133 [2021-12-17 17:10:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:26,788 INFO L470 AbstractCegarLoop]: Abstraction has 2802 states and 3898 transitions. [2021-12-17 17:10:26,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3898 transitions. [2021-12-17 17:10:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:26,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:26,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:26,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-12-17 17:10:26,791 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:26,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:26,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1445476815, now seen corresponding path program 1 times [2021-12-17 17:10:26,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:26,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982837686] [2021-12-17 17:10:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:26,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:26,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:26,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982837686] [2021-12-17 17:10:26,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982837686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:26,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:26,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:10:26,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862514370] [2021-12-17 17:10:26,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:26,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:10:26,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:26,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:10:26,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:10:26,892 INFO L87 Difference]: Start difference. First operand 2802 states and 3898 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:31,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:31,367 INFO L93 Difference]: Finished difference Result 4688 states and 6558 transitions. [2021-12-17 17:10:31,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:10:31,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:31,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:31,371 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:10:31,371 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:10:31,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:10:31,372 INFO L933 BasicCegarLoop]: 1880 mSDtfsCounter, 11054 mSDsluCounter, 7602 mSDsCounter, 0 mSdLazyCounter, 7613 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11054 SdHoareTripleChecker+Valid, 9482 SdHoareTripleChecker+Invalid, 7955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 7613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:31,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11054 Valid, 9482 Invalid, 7955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 7613 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:10:31,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:10:32,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2802. [2021-12-17 17:10:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2765 states have (on average 1.4090415913200722) internal successors, (3896), 2801 states have internal predecessors, (3896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:32,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3896 transitions. [2021-12-17 17:10:32,112 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3896 transitions. Word has length 133 [2021-12-17 17:10:32,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:32,112 INFO L470 AbstractCegarLoop]: Abstraction has 2802 states and 3896 transitions. [2021-12-17 17:10:32,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:32,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3896 transitions. [2021-12-17 17:10:32,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:32,114 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:32,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:32,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-12-17 17:10:32,114 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:32,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2040995799, now seen corresponding path program 1 times [2021-12-17 17:10:32,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:32,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090119869] [2021-12-17 17:10:32,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:32,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:32,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:32,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090119869] [2021-12-17 17:10:32,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090119869] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:32,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:32,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:10:32,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967400441] [2021-12-17 17:10:32,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:32,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:10:32,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:32,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:10:32,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:10:32,210 INFO L87 Difference]: Start difference. First operand 2802 states and 3896 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:36,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:36,335 INFO L93 Difference]: Finished difference Result 4860 states and 6803 transitions. [2021-12-17 17:10:36,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:10:36,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:36,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:36,340 INFO L225 Difference]: With dead ends: 4860 [2021-12-17 17:10:36,340 INFO L226 Difference]: Without dead ends: 4614 [2021-12-17 17:10:36,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:10:36,341 INFO L933 BasicCegarLoop]: 2208 mSDtfsCounter, 8563 mSDsluCounter, 6952 mSDsCounter, 0 mSdLazyCounter, 7216 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8563 SdHoareTripleChecker+Valid, 9160 SdHoareTripleChecker+Invalid, 7374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 7216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:36,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8563 Valid, 9160 Invalid, 7374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 7216 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:10:36,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4614 states. [2021-12-17 17:10:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4614 to 2802. [2021-12-17 17:10:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2765 states have (on average 1.4083182640144665) internal successors, (3894), 2801 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:37,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3894 transitions. [2021-12-17 17:10:37,048 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3894 transitions. Word has length 133 [2021-12-17 17:10:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:37,048 INFO L470 AbstractCegarLoop]: Abstraction has 2802 states and 3894 transitions. [2021-12-17 17:10:37,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:37,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3894 transitions. [2021-12-17 17:10:37,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:37,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:37,050 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:37,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-12-17 17:10:37,050 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:37,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:37,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1845126269, now seen corresponding path program 1 times [2021-12-17 17:10:37,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:37,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400729243] [2021-12-17 17:10:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:37,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:37,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:37,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400729243] [2021-12-17 17:10:37,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400729243] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:37,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:37,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:10:37,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115861704] [2021-12-17 17:10:37,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:37,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:10:37,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:37,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:10:37,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:10:37,159 INFO L87 Difference]: Start difference. First operand 2802 states and 3894 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:41,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:41,730 INFO L93 Difference]: Finished difference Result 4694 states and 6561 transitions. [2021-12-17 17:10:41,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:10:41,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:41,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:41,735 INFO L225 Difference]: With dead ends: 4694 [2021-12-17 17:10:41,735 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:10:41,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:10:41,736 INFO L933 BasicCegarLoop]: 1965 mSDtfsCounter, 10898 mSDsluCounter, 7852 mSDsCounter, 0 mSdLazyCounter, 7874 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10898 SdHoareTripleChecker+Valid, 9817 SdHoareTripleChecker+Invalid, 8213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 7874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:41,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10898 Valid, 9817 Invalid, 8213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 7874 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:10:41,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:10:42,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2802. [2021-12-17 17:10:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2765 states have (on average 1.4075949367088607) internal successors, (3892), 2801 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:42,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3892 transitions. [2021-12-17 17:10:42,468 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3892 transitions. Word has length 133 [2021-12-17 17:10:42,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:42,468 INFO L470 AbstractCegarLoop]: Abstraction has 2802 states and 3892 transitions. [2021-12-17 17:10:42,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:42,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3892 transitions. [2021-12-17 17:10:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:42,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:42,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:42,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-12-17 17:10:42,471 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:42,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1590275596, now seen corresponding path program 1 times [2021-12-17 17:10:42,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:42,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255666534] [2021-12-17 17:10:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:42,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:42,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:42,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:42,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255666534] [2021-12-17 17:10:42,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255666534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:42,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:42,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:10:42,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384953190] [2021-12-17 17:10:42,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:42,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:10:42,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:42,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:10:42,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:10:42,613 INFO L87 Difference]: Start difference. First operand 2802 states and 3892 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:49,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:49,452 INFO L93 Difference]: Finished difference Result 5792 states and 8158 transitions. [2021-12-17 17:10:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:10:49,452 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:49,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:49,457 INFO L225 Difference]: With dead ends: 5792 [2021-12-17 17:10:49,457 INFO L226 Difference]: Without dead ends: 5586 [2021-12-17 17:10:49,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:10:49,458 INFO L933 BasicCegarLoop]: 2009 mSDtfsCounter, 15063 mSDsluCounter, 7704 mSDsCounter, 0 mSdLazyCounter, 8059 mSolverCounterSat, 1631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15063 SdHoareTripleChecker+Valid, 9713 SdHoareTripleChecker+Invalid, 9690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1631 IncrementalHoareTripleChecker+Valid, 8059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:49,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15063 Valid, 9713 Invalid, 9690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1631 Valid, 8059 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-17 17:10:49,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5586 states. [2021-12-17 17:10:50,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5586 to 2810. [2021-12-17 17:10:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2773 states have (on average 1.40641904075009) internal successors, (3900), 2809 states have internal predecessors, (3900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3900 transitions. [2021-12-17 17:10:50,208 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3900 transitions. Word has length 133 [2021-12-17 17:10:50,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:50,208 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3900 transitions. [2021-12-17 17:10:50,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3900 transitions. [2021-12-17 17:10:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:50,210 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:50,210 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:50,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-12-17 17:10:50,211 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:50,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:50,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1389392136, now seen corresponding path program 1 times [2021-12-17 17:10:50,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:50,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262114669] [2021-12-17 17:10:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:50,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:50,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:50,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262114669] [2021-12-17 17:10:50,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262114669] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:50,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:50,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:10:50,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900870948] [2021-12-17 17:10:50,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:50,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:10:50,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:50,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:10:50,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:10:50,318 INFO L87 Difference]: Start difference. First operand 2810 states and 3900 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:54,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:10:54,908 INFO L93 Difference]: Finished difference Result 4688 states and 6550 transitions. [2021-12-17 17:10:54,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:10:54,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:10:54,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:10:54,913 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:10:54,913 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:10:54,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:10:54,914 INFO L933 BasicCegarLoop]: 1896 mSDtfsCounter, 11014 mSDsluCounter, 7650 mSDsCounter, 0 mSdLazyCounter, 7638 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11014 SdHoareTripleChecker+Valid, 9546 SdHoareTripleChecker+Invalid, 7979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 7638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:10:54,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11014 Valid, 9546 Invalid, 7979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 7638 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:10:54,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:10:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2810. [2021-12-17 17:10:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2773 states have (on average 1.4056978002163723) internal successors, (3898), 2809 states have internal predecessors, (3898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3898 transitions. [2021-12-17 17:10:55,650 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3898 transitions. Word has length 133 [2021-12-17 17:10:55,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:55,650 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3898 transitions. [2021-12-17 17:10:55,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:55,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3898 transitions. [2021-12-17 17:10:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:10:55,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:55,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:55,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-12-17 17:10:55,653 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:10:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash 971466886, now seen corresponding path program 1 times [2021-12-17 17:10:55,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:55,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981547244] [2021-12-17 17:10:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:55,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:55,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:55,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981547244] [2021-12-17 17:10:55,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981547244] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:55,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:55,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:10:55,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955021361] [2021-12-17 17:10:55,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:55,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:10:55,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:55,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:10:55,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:10:55,763 INFO L87 Difference]: Start difference. First operand 2810 states and 3898 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:00,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:00,065 INFO L93 Difference]: Finished difference Result 4856 states and 6780 transitions. [2021-12-17 17:11:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:11:00,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:00,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:00,070 INFO L225 Difference]: With dead ends: 4856 [2021-12-17 17:11:00,070 INFO L226 Difference]: Without dead ends: 4622 [2021-12-17 17:11:00,070 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 [2021-12-17 17:11:00,071 INFO L933 BasicCegarLoop]: 2208 mSDtfsCounter, 5671 mSDsluCounter, 7015 mSDsCounter, 0 mSdLazyCounter, 7241 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5671 SdHoareTripleChecker+Valid, 9223 SdHoareTripleChecker+Invalid, 7346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 7241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:00,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5671 Valid, 9223 Invalid, 7346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 7241 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:11:00,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2021-12-17 17:11:00,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 2810. [2021-12-17 17:11:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2773 states have (on average 1.4049765596826542) internal successors, (3896), 2809 states have internal predecessors, (3896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:00,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3896 transitions. [2021-12-17 17:11:00,846 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3896 transitions. Word has length 133 [2021-12-17 17:11:00,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:00,846 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3896 transitions. [2021-12-17 17:11:00,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3896 transitions. [2021-12-17 17:11:00,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:00,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:00,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:00,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-12-17 17:11:00,849 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:00,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:00,849 INFO L85 PathProgramCache]: Analyzing trace with hash 562621658, now seen corresponding path program 1 times [2021-12-17 17:11:00,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:00,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892951182] [2021-12-17 17:11:00,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:00,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:00,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:00,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:00,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892951182] [2021-12-17 17:11:00,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892951182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:00,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:00,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:11:00,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873369391] [2021-12-17 17:11:00,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:00,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:11:00,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:00,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:11:00,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:11:00,953 INFO L87 Difference]: Start difference. First operand 2810 states and 3896 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:05,530 INFO L93 Difference]: Finished difference Result 4690 states and 6547 transitions. [2021-12-17 17:11:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:11:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:05,534 INFO L225 Difference]: With dead ends: 4690 [2021-12-17 17:11:05,535 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:11:05,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:11:05,535 INFO L933 BasicCegarLoop]: 1920 mSDtfsCounter, 10968 mSDsluCounter, 7721 mSDsCounter, 0 mSdLazyCounter, 7691 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10968 SdHoareTripleChecker+Valid, 9641 SdHoareTripleChecker+Invalid, 8031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 7691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:05,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10968 Valid, 9641 Invalid, 8031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 7691 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:11:05,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:11:06,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2810. [2021-12-17 17:11:06,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2773 states have (on average 1.4042553191489362) internal successors, (3894), 2809 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3894 transitions. [2021-12-17 17:11:06,287 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3894 transitions. Word has length 133 [2021-12-17 17:11:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:06,287 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 3894 transitions. [2021-12-17 17:11:06,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:06,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3894 transitions. [2021-12-17 17:11:06,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:06,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:06,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:06,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-12-17 17:11:06,290 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:06,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:06,290 INFO L85 PathProgramCache]: Analyzing trace with hash 930723833, now seen corresponding path program 1 times [2021-12-17 17:11:06,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:06,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418039971] [2021-12-17 17:11:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:06,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:06,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:06,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418039971] [2021-12-17 17:11:06,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418039971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:06,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:06,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:11:06,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349595823] [2021-12-17 17:11:06,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:06,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:11:06,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:06,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:11:06,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:11:06,438 INFO L87 Difference]: Start difference. First operand 2810 states and 3894 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:13,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:13,369 INFO L93 Difference]: Finished difference Result 5796 states and 8152 transitions. [2021-12-17 17:11:13,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:11:13,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:13,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:13,374 INFO L225 Difference]: With dead ends: 5796 [2021-12-17 17:11:13,374 INFO L226 Difference]: Without dead ends: 5588 [2021-12-17 17:11:13,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:11:13,375 INFO L933 BasicCegarLoop]: 2029 mSDtfsCounter, 14969 mSDsluCounter, 7762 mSDsCounter, 0 mSdLazyCounter, 8083 mSolverCounterSat, 1623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14969 SdHoareTripleChecker+Valid, 9791 SdHoareTripleChecker+Invalid, 9706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1623 IncrementalHoareTripleChecker+Valid, 8083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:13,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14969 Valid, 9791 Invalid, 9706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1623 Valid, 8083 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-17 17:11:13,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5588 states. [2021-12-17 17:11:14,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5588 to 2818. [2021-12-17 17:11:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2781 states have (on average 1.4030924128011506) internal successors, (3902), 2817 states have internal predecessors, (3902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3902 transitions. [2021-12-17 17:11:14,138 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3902 transitions. Word has length 133 [2021-12-17 17:11:14,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:14,139 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 3902 transitions. [2021-12-17 17:11:14,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:14,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3902 transitions. [2021-12-17 17:11:14,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:14,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:14,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:14,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-12-17 17:11:14,141 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:14,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:14,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1566094156, now seen corresponding path program 1 times [2021-12-17 17:11:14,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:14,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651590201] [2021-12-17 17:11:14,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:14,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:14,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:14,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:14,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651590201] [2021-12-17 17:11:14,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651590201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:14,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:14,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:11:14,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479517579] [2021-12-17 17:11:14,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:14,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:11:14,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:14,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:11:14,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:11:14,245 INFO L87 Difference]: Start difference. First operand 2818 states and 3902 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:18,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:18,811 INFO L93 Difference]: Finished difference Result 4688 states and 6542 transitions. [2021-12-17 17:11:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:11:18,811 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:18,815 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:11:18,815 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:11:18,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:11:18,819 INFO L933 BasicCegarLoop]: 1912 mSDtfsCounter, 10975 mSDsluCounter, 7699 mSDsCounter, 0 mSdLazyCounter, 7658 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10975 SdHoareTripleChecker+Valid, 9611 SdHoareTripleChecker+Invalid, 7998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 7658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:18,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10975 Valid, 9611 Invalid, 7998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 7658 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:11:18,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:11:19,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2818. [2021-12-17 17:11:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2781 states have (on average 1.4023732470334411) internal successors, (3900), 2817 states have internal predecessors, (3900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3900 transitions. [2021-12-17 17:11:19,590 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3900 transitions. Word has length 133 [2021-12-17 17:11:19,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:19,590 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 3900 transitions. [2021-12-17 17:11:19,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:19,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3900 transitions. [2021-12-17 17:11:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:19,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:19,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:19,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-12-17 17:11:19,592 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:19,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:19,593 INFO L85 PathProgramCache]: Analyzing trace with hash 105995811, now seen corresponding path program 1 times [2021-12-17 17:11:19,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:19,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700125732] [2021-12-17 17:11:19,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:19,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:19,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:19,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700125732] [2021-12-17 17:11:19,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700125732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:19,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:19,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:11:19,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612364097] [2021-12-17 17:11:19,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:19,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:11:19,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:11:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:11:19,695 INFO L87 Difference]: Start difference. First operand 2818 states and 3900 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:24,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:24,405 INFO L93 Difference]: Finished difference Result 4688 states and 6540 transitions. [2021-12-17 17:11:24,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:11:24,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:24,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:24,409 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:11:24,409 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:11:24,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:11:24,410 INFO L933 BasicCegarLoop]: 1975 mSDtfsCounter, 10858 mSDsluCounter, 7886 mSDsCounter, 0 mSdLazyCounter, 7861 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10858 SdHoareTripleChecker+Valid, 9861 SdHoareTripleChecker+Invalid, 8199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 7861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:24,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10858 Valid, 9861 Invalid, 8199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 7861 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:11:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:11:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2818. [2021-12-17 17:11:25,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2781 states have (on average 1.4016540812657317) internal successors, (3898), 2817 states have internal predecessors, (3898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:25,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3898 transitions. [2021-12-17 17:11:25,151 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3898 transitions. Word has length 133 [2021-12-17 17:11:25,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:25,151 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 3898 transitions. [2021-12-17 17:11:25,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:25,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3898 transitions. [2021-12-17 17:11:25,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:25,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:25,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:25,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-12-17 17:11:25,168 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:25,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:25,168 INFO L85 PathProgramCache]: Analyzing trace with hash -529157045, now seen corresponding path program 1 times [2021-12-17 17:11:25,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:25,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176600126] [2021-12-17 17:11:25,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:25,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:25,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:25,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176600126] [2021-12-17 17:11:25,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176600126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:25,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:25,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:11:25,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932071501] [2021-12-17 17:11:25,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:25,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:11:25,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:25,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:11:25,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:11:25,316 INFO L87 Difference]: Start difference. First operand 2818 states and 3898 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:32,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:32,642 INFO L93 Difference]: Finished difference Result 5796 states and 8146 transitions. [2021-12-17 17:11:32,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:11:32,643 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:32,648 INFO L225 Difference]: With dead ends: 5796 [2021-12-17 17:11:32,648 INFO L226 Difference]: Without dead ends: 5588 [2021-12-17 17:11:32,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:11:32,648 INFO L933 BasicCegarLoop]: 2088 mSDtfsCounter, 14034 mSDsluCounter, 9275 mSDsCounter, 0 mSdLazyCounter, 9293 mSolverCounterSat, 1603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14034 SdHoareTripleChecker+Valid, 11363 SdHoareTripleChecker+Invalid, 10896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1603 IncrementalHoareTripleChecker+Valid, 9293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:32,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14034 Valid, 11363 Invalid, 10896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1603 Valid, 9293 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-17 17:11:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5588 states. [2021-12-17 17:11:33,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5588 to 2826. [2021-12-17 17:11:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2789 states have (on average 1.4005019720329868) internal successors, (3906), 2825 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3906 transitions. [2021-12-17 17:11:33,423 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3906 transitions. Word has length 133 [2021-12-17 17:11:33,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:33,423 INFO L470 AbstractCegarLoop]: Abstraction has 2826 states and 3906 transitions. [2021-12-17 17:11:33,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:33,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3906 transitions. [2021-12-17 17:11:33,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:33,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:33,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:33,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-12-17 17:11:33,426 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:33,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:33,426 INFO L85 PathProgramCache]: Analyzing trace with hash 306879271, now seen corresponding path program 1 times [2021-12-17 17:11:33,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:33,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943098411] [2021-12-17 17:11:33,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:33,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:33,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:33,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943098411] [2021-12-17 17:11:33,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943098411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:33,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:33,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:11:33,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915687032] [2021-12-17 17:11:33,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:33,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:11:33,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:33,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:11:33,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:11:33,572 INFO L87 Difference]: Start difference. First operand 2826 states and 3906 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:40,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:40,475 INFO L93 Difference]: Finished difference Result 5792 states and 8142 transitions. [2021-12-17 17:11:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:11:40,475 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:40,480 INFO L225 Difference]: With dead ends: 5792 [2021-12-17 17:11:40,480 INFO L226 Difference]: Without dead ends: 5586 [2021-12-17 17:11:40,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:11:40,481 INFO L933 BasicCegarLoop]: 2010 mSDtfsCounter, 15025 mSDsluCounter, 6989 mSDsCounter, 0 mSdLazyCounter, 7256 mSolverCounterSat, 1638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15025 SdHoareTripleChecker+Valid, 8999 SdHoareTripleChecker+Invalid, 8894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1638 IncrementalHoareTripleChecker+Valid, 7256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:40,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15025 Valid, 8999 Invalid, 8894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1638 Valid, 7256 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-17 17:11:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5586 states. [2021-12-17 17:11:41,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5586 to 2834. [2021-12-17 17:11:41,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2797 states have (on average 1.3993564533428673) internal successors, (3914), 2833 states have internal predecessors, (3914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:41,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3914 transitions. [2021-12-17 17:11:41,276 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3914 transitions. Word has length 133 [2021-12-17 17:11:41,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:41,276 INFO L470 AbstractCegarLoop]: Abstraction has 2834 states and 3914 transitions. [2021-12-17 17:11:41,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3914 transitions. [2021-12-17 17:11:41,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:41,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:41,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:41,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-12-17 17:11:41,279 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:41,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:41,279 INFO L85 PathProgramCache]: Analyzing trace with hash -243095055, now seen corresponding path program 1 times [2021-12-17 17:11:41,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:41,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494417450] [2021-12-17 17:11:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:41,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:41,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:41,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494417450] [2021-12-17 17:11:41,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494417450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:41,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:41,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:11:41,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029221779] [2021-12-17 17:11:41,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:41,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:11:41,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:41,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:11:41,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:11:41,378 INFO L87 Difference]: Start difference. First operand 2834 states and 3914 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:46,050 INFO L93 Difference]: Finished difference Result 4686 states and 6532 transitions. [2021-12-17 17:11:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:11:46,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:46,055 INFO L225 Difference]: With dead ends: 4686 [2021-12-17 17:11:46,056 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:11:46,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:11:46,056 INFO L933 BasicCegarLoop]: 1962 mSDtfsCounter, 10878 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 7797 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10878 SdHoareTripleChecker+Valid, 9809 SdHoareTripleChecker+Invalid, 8135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 7797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:46,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10878 Valid, 9809 Invalid, 8135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 7797 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:11:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:11:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2834. [2021-12-17 17:11:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2797 states have (on average 1.3986414015016089) internal successors, (3912), 2833 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3912 transitions. [2021-12-17 17:11:46,862 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3912 transitions. Word has length 133 [2021-12-17 17:11:46,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:46,862 INFO L470 AbstractCegarLoop]: Abstraction has 2834 states and 3912 transitions. [2021-12-17 17:11:46,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3912 transitions. [2021-12-17 17:11:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:46,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:46,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:46,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-12-17 17:11:46,865 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:46,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash 750589943, now seen corresponding path program 1 times [2021-12-17 17:11:46,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:46,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753761758] [2021-12-17 17:11:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:46,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:47,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:47,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753761758] [2021-12-17 17:11:47,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753761758] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:47,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:47,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:11:47,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223912668] [2021-12-17 17:11:47,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:47,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:11:47,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:47,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:11:47,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:11:47,010 INFO L87 Difference]: Start difference. First operand 2834 states and 3912 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:53,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:53,985 INFO L93 Difference]: Finished difference Result 5792 states and 8138 transitions. [2021-12-17 17:11:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:11:53,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:53,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:53,991 INFO L225 Difference]: With dead ends: 5792 [2021-12-17 17:11:53,991 INFO L226 Difference]: Without dead ends: 5586 [2021-12-17 17:11:53,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:11:53,992 INFO L933 BasicCegarLoop]: 2005 mSDtfsCounter, 18088 mSDsluCounter, 6975 mSDsCounter, 0 mSdLazyCounter, 7224 mSolverCounterSat, 1956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18088 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 9180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1956 IncrementalHoareTripleChecker+Valid, 7224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:53,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18088 Valid, 8980 Invalid, 9180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1956 Valid, 7224 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-17 17:11:53,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5586 states. [2021-12-17 17:11:54,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5586 to 2842. [2021-12-17 17:11:54,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.3975044563279857) internal successors, (3920), 2841 states have internal predecessors, (3920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3920 transitions. [2021-12-17 17:11:54,782 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3920 transitions. Word has length 133 [2021-12-17 17:11:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:54,782 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3920 transitions. [2021-12-17 17:11:54,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:54,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3920 transitions. [2021-12-17 17:11:54,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:54,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:54,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:54,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-12-17 17:11:54,785 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:54,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:54,785 INFO L85 PathProgramCache]: Analyzing trace with hash 838377823, now seen corresponding path program 1 times [2021-12-17 17:11:54,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:54,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837280901] [2021-12-17 17:11:54,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:54,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:11:54,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:11:54,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:11:54,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837280901] [2021-12-17 17:11:54,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837280901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:11:54,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:11:54,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:11:54,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877190283] [2021-12-17 17:11:54,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:11:54,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:11:54,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:11:54,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:11:54,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:11:54,872 INFO L87 Difference]: Start difference. First operand 2842 states and 3920 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:59,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:11:59,097 INFO L93 Difference]: Finished difference Result 4686 states and 6528 transitions. [2021-12-17 17:11:59,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:11:59,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:11:59,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:11:59,102 INFO L225 Difference]: With dead ends: 4686 [2021-12-17 17:11:59,102 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:11:59,102 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 [2021-12-17 17:11:59,103 INFO L933 BasicCegarLoop]: 1894 mSDtfsCounter, 11832 mSDsluCounter, 6095 mSDsCounter, 0 mSdLazyCounter, 6385 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11832 SdHoareTripleChecker+Valid, 7989 SdHoareTripleChecker+Invalid, 6799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 6385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:11:59,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11832 Valid, 7989 Invalid, 6799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 6385 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:11:59,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:11:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2842. [2021-12-17 17:11:59,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.3967914438502673) internal successors, (3918), 2841 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:59,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3918 transitions. [2021-12-17 17:11:59,904 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3918 transitions. Word has length 133 [2021-12-17 17:11:59,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:11:59,904 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3918 transitions. [2021-12-17 17:11:59,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:11:59,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3918 transitions. [2021-12-17 17:11:59,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:11:59,906 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:11:59,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:11:59,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-12-17 17:11:59,906 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:11:59,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:11:59,907 INFO L85 PathProgramCache]: Analyzing trace with hash -599352275, now seen corresponding path program 1 times [2021-12-17 17:11:59,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:11:59,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379186856] [2021-12-17 17:11:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:11:59,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:11:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:00,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:00,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:00,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379186856] [2021-12-17 17:12:00,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379186856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:00,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:00,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:12:00,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856796129] [2021-12-17 17:12:00,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:00,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:12:00,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:00,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:12:00,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:12:00,005 INFO L87 Difference]: Start difference. First operand 2842 states and 3918 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:04,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:04,384 INFO L93 Difference]: Finished difference Result 4896 states and 6805 transitions. [2021-12-17 17:12:04,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:12:04,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:12:04,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:04,389 INFO L225 Difference]: With dead ends: 4896 [2021-12-17 17:12:04,389 INFO L226 Difference]: Without dead ends: 4662 [2021-12-17 17:12:04,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:12:04,390 INFO L933 BasicCegarLoop]: 2220 mSDtfsCounter, 5637 mSDsluCounter, 7069 mSDsCounter, 0 mSdLazyCounter, 7209 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5637 SdHoareTripleChecker+Valid, 9289 SdHoareTripleChecker+Invalid, 7313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 7209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:04,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5637 Valid, 9289 Invalid, 7313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 7209 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:12:04,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2021-12-17 17:12:05,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 2842. [2021-12-17 17:12:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.396078431372549) internal successors, (3916), 2841 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3916 transitions. [2021-12-17 17:12:05,201 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3916 transitions. Word has length 133 [2021-12-17 17:12:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:05,201 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3916 transitions. [2021-12-17 17:12:05,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:05,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3916 transitions. [2021-12-17 17:12:05,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:12:05,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:05,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:05,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-12-17 17:12:05,204 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:05,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:05,204 INFO L85 PathProgramCache]: Analyzing trace with hash 549706483, now seen corresponding path program 1 times [2021-12-17 17:12:05,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:05,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826738242] [2021-12-17 17:12:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:05,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:05,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:05,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:05,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826738242] [2021-12-17 17:12:05,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826738242] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:05,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:05,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:12:05,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792293063] [2021-12-17 17:12:05,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:05,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:12:05,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:05,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:12:05,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:12:05,302 INFO L87 Difference]: Start difference. First operand 2842 states and 3916 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:10,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:10,072 INFO L93 Difference]: Finished difference Result 4688 states and 6526 transitions. [2021-12-17 17:12:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:12:10,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:12:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:10,077 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:12:10,077 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:12:10,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:12:10,077 INFO L933 BasicCegarLoop]: 1974 mSDtfsCounter, 10845 mSDsluCounter, 7883 mSDsCounter, 0 mSdLazyCounter, 7812 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10845 SdHoareTripleChecker+Valid, 9857 SdHoareTripleChecker+Invalid, 8149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 7812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:10,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10845 Valid, 9857 Invalid, 8149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 7812 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:12:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:12:10,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2842. [2021-12-17 17:12:10,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.3953654188948306) internal successors, (3914), 2841 states have internal predecessors, (3914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3914 transitions. [2021-12-17 17:12:10,881 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3914 transitions. Word has length 133 [2021-12-17 17:12:10,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:10,881 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3914 transitions. [2021-12-17 17:12:10,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:10,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3914 transitions. [2021-12-17 17:12:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:12:10,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:10,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:10,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-12-17 17:12:10,883 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:10,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:10,884 INFO L85 PathProgramCache]: Analyzing trace with hash 309752907, now seen corresponding path program 1 times [2021-12-17 17:12:10,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:10,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981819802] [2021-12-17 17:12:10,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:10,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:10,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:10,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981819802] [2021-12-17 17:12:10,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981819802] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:10,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:10,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:12:10,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850216890] [2021-12-17 17:12:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:10,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:12:10,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:10,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:12:10,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:12:10,974 INFO L87 Difference]: Start difference. First operand 2842 states and 3914 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:15,311 INFO L93 Difference]: Finished difference Result 4688 states and 6524 transitions. [2021-12-17 17:12:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:12:15,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:12:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:15,316 INFO L225 Difference]: With dead ends: 4688 [2021-12-17 17:12:15,316 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:12:15,317 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 [2021-12-17 17:12:15,317 INFO L933 BasicCegarLoop]: 1988 mSDtfsCounter, 8770 mSDsluCounter, 6280 mSDsCounter, 0 mSdLazyCounter, 6616 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8770 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 6923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 6616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:15,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8770 Valid, 8268 Invalid, 6923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 6616 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:12:15,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:12:16,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2842. [2021-12-17 17:12:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.3946524064171122) internal successors, (3912), 2841 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:16,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3912 transitions. [2021-12-17 17:12:16,128 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3912 transitions. Word has length 133 [2021-12-17 17:12:16,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:16,129 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3912 transitions. [2021-12-17 17:12:16,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:16,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3912 transitions. [2021-12-17 17:12:16,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:12:16,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:16,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:16,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-12-17 17:12:16,131 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:16,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1076072202, now seen corresponding path program 1 times [2021-12-17 17:12:16,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:16,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814257431] [2021-12-17 17:12:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:16,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:16,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:16,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814257431] [2021-12-17 17:12:16,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814257431] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:16,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:16,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:12:16,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152348669] [2021-12-17 17:12:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:16,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:12:16,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:16,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:12:16,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:12:16,231 INFO L87 Difference]: Start difference. First operand 2842 states and 3912 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:21,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:21,023 INFO L93 Difference]: Finished difference Result 4686 states and 6518 transitions. [2021-12-17 17:12:21,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:12:21,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:12:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:21,028 INFO L225 Difference]: With dead ends: 4686 [2021-12-17 17:12:21,028 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:12:21,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:12:21,028 INFO L933 BasicCegarLoop]: 1986 mSDtfsCounter, 10824 mSDsluCounter, 7919 mSDsCounter, 0 mSdLazyCounter, 7799 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10824 SdHoareTripleChecker+Valid, 9905 SdHoareTripleChecker+Invalid, 8136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 7799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:21,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10824 Valid, 9905 Invalid, 8136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 7799 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:12:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:12:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2842. [2021-12-17 17:12:21,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.393939393939394) internal successors, (3910), 2841 states have internal predecessors, (3910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:21,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3910 transitions. [2021-12-17 17:12:21,826 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3910 transitions. Word has length 133 [2021-12-17 17:12:21,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:21,826 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3910 transitions. [2021-12-17 17:12:21,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:21,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3910 transitions. [2021-12-17 17:12:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 17:12:21,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:21,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:21,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-12-17 17:12:21,828 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:21,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:21,828 INFO L85 PathProgramCache]: Analyzing trace with hash -243803453, now seen corresponding path program 1 times [2021-12-17 17:12:21,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:21,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286706879] [2021-12-17 17:12:21,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:21,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:21,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:21,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286706879] [2021-12-17 17:12:21,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286706879] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:21,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:21,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:12:21,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261830887] [2021-12-17 17:12:21,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:21,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:12:21,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:21,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:12:21,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:12:21,989 INFO L87 Difference]: Start difference. First operand 2842 states and 3910 transitions. Second operand has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:29,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:29,206 INFO L93 Difference]: Finished difference Result 5788 states and 8120 transitions. [2021-12-17 17:12:29,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:12:29,206 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-17 17:12:29,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:29,211 INFO L225 Difference]: With dead ends: 5788 [2021-12-17 17:12:29,211 INFO L226 Difference]: Without dead ends: 5584 [2021-12-17 17:12:29,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:12:29,212 INFO L933 BasicCegarLoop]: 2018 mSDtfsCounter, 17918 mSDsluCounter, 7011 mSDsCounter, 0 mSdLazyCounter, 7223 mSolverCounterSat, 1933 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17918 SdHoareTripleChecker+Valid, 9029 SdHoareTripleChecker+Invalid, 9156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1933 IncrementalHoareTripleChecker+Valid, 7223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:29,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17918 Valid, 9029 Invalid, 9156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1933 Valid, 7223 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-17 17:12:29,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5584 states. [2021-12-17 17:12:30,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5584 to 2850. [2021-12-17 17:12:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2813 states have (on average 1.3928190543903307) internal successors, (3918), 2849 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:30,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3918 transitions. [2021-12-17 17:12:30,072 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3918 transitions. Word has length 133 [2021-12-17 17:12:30,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:30,072 INFO L470 AbstractCegarLoop]: Abstraction has 2850 states and 3918 transitions. [2021-12-17 17:12:30,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.083333333333334) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:30,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3918 transitions. [2021-12-17 17:12:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:12:30,074 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:30,074 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:30,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-12-17 17:12:30,074 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:30,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:30,075 INFO L85 PathProgramCache]: Analyzing trace with hash 21533804, now seen corresponding path program 1 times [2021-12-17 17:12:30,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:30,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80470353] [2021-12-17 17:12:30,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:30,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:30,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:30,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80470353] [2021-12-17 17:12:30,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80470353] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:30,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:30,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:12:30,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934494778] [2021-12-17 17:12:30,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:30,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:12:30,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:30,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:12:30,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:12:30,169 INFO L87 Difference]: Start difference. First operand 2850 states and 3918 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:34,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:34,613 INFO L93 Difference]: Finished difference Result 4684 states and 6509 transitions. [2021-12-17 17:12:34,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:12:34,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:12:34,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:34,618 INFO L225 Difference]: With dead ends: 4684 [2021-12-17 17:12:34,618 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:12:34,618 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 [2021-12-17 17:12:34,619 INFO L933 BasicCegarLoop]: 1991 mSDtfsCounter, 5949 mSDsluCounter, 6281 mSDsCounter, 0 mSdLazyCounter, 6609 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5949 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 6814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 6609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:34,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5949 Valid, 8272 Invalid, 6814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 6609 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:12:34,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:12:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2846. [2021-12-17 17:12:35,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2809 states have (on average 1.3930224279102883) internal successors, (3913), 2845 states have internal predecessors, (3913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:35,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3913 transitions. [2021-12-17 17:12:35,486 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3913 transitions. Word has length 134 [2021-12-17 17:12:35,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:35,486 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 3913 transitions. [2021-12-17 17:12:35,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:35,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3913 transitions. [2021-12-17 17:12:35,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:12:35,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:35,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:35,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-12-17 17:12:35,489 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:35,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2035913755, now seen corresponding path program 1 times [2021-12-17 17:12:35,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:35,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33848068] [2021-12-17 17:12:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:35,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:35,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:35,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33848068] [2021-12-17 17:12:35,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33848068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:35,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:35,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:12:35,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410512614] [2021-12-17 17:12:35,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:35,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:12:35,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:35,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:12:35,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:12:35,593 INFO L87 Difference]: Start difference. First operand 2846 states and 3913 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:40,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:40,492 INFO L93 Difference]: Finished difference Result 4678 states and 6502 transitions. [2021-12-17 17:12:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:12:40,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:12:40,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:40,497 INFO L225 Difference]: With dead ends: 4678 [2021-12-17 17:12:40,497 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:12:40,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:12:40,498 INFO L933 BasicCegarLoop]: 1913 mSDtfsCounter, 10928 mSDsluCounter, 7708 mSDsCounter, 0 mSdLazyCounter, 7592 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10928 SdHoareTripleChecker+Valid, 9621 SdHoareTripleChecker+Invalid, 7931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 7592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:40,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10928 Valid, 9621 Invalid, 7931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 7592 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:12:40,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:12:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2846. [2021-12-17 17:12:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2809 states have (on average 1.3926664293342828) internal successors, (3912), 2845 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:41,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3912 transitions. [2021-12-17 17:12:41,385 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3912 transitions. Word has length 134 [2021-12-17 17:12:41,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:41,385 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 3912 transitions. [2021-12-17 17:12:41,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3912 transitions. [2021-12-17 17:12:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:12:41,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:41,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:41,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-12-17 17:12:41,388 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:41,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:41,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1961923169, now seen corresponding path program 1 times [2021-12-17 17:12:41,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:41,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659525629] [2021-12-17 17:12:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:41,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:41,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:41,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659525629] [2021-12-17 17:12:41,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659525629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:41,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:41,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:12:41,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456573902] [2021-12-17 17:12:41,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:41,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:12:41,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:41,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:12:41,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:12:41,486 INFO L87 Difference]: Start difference. First operand 2846 states and 3912 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:46,296 INFO L93 Difference]: Finished difference Result 4870 states and 6753 transitions. [2021-12-17 17:12:46,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:12:46,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:12:46,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:46,300 INFO L225 Difference]: With dead ends: 4870 [2021-12-17 17:12:46,300 INFO L226 Difference]: Without dead ends: 4662 [2021-12-17 17:12:46,301 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 [2021-12-17 17:12:46,301 INFO L933 BasicCegarLoop]: 2190 mSDtfsCounter, 10728 mSDsluCounter, 7102 mSDsCounter, 0 mSdLazyCounter, 7221 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10728 SdHoareTripleChecker+Valid, 9292 SdHoareTripleChecker+Invalid, 7427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 7221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:46,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10728 Valid, 9292 Invalid, 7427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 7221 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-17 17:12:46,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2021-12-17 17:12:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 2846. [2021-12-17 17:12:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2809 states have (on average 1.392310430758277) internal successors, (3911), 2845 states have internal predecessors, (3911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:47,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3911 transitions. [2021-12-17 17:12:47,173 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3911 transitions. Word has length 134 [2021-12-17 17:12:47,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:47,173 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 3911 transitions. [2021-12-17 17:12:47,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:47,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3911 transitions. [2021-12-17 17:12:47,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:12:47,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:47,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:47,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-12-17 17:12:47,177 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:47,177 INFO L85 PathProgramCache]: Analyzing trace with hash -851504616, now seen corresponding path program 1 times [2021-12-17 17:12:47,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:47,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480486065] [2021-12-17 17:12:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:47,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:47,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:47,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480486065] [2021-12-17 17:12:47,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480486065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:47,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:47,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:12:47,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195720006] [2021-12-17 17:12:47,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:47,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:12:47,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:47,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:12:47,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:12:47,354 INFO L87 Difference]: Start difference. First operand 2846 states and 3911 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:55,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:12:55,843 INFO L93 Difference]: Finished difference Result 6286 states and 8733 transitions. [2021-12-17 17:12:55,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-17 17:12:55,844 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:12:55,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:12:55,850 INFO L225 Difference]: With dead ends: 6286 [2021-12-17 17:12:55,850 INFO L226 Difference]: Without dead ends: 6088 [2021-12-17 17:12:55,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=982, Unknown=0, NotChecked=0, Total=1260 [2021-12-17 17:12:55,852 INFO L933 BasicCegarLoop]: 2668 mSDtfsCounter, 13593 mSDsluCounter, 14860 mSDsCounter, 0 mSdLazyCounter, 15013 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13593 SdHoareTripleChecker+Valid, 17528 SdHoareTripleChecker+Invalid, 15293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 15013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:12:55,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13593 Valid, 17528 Invalid, 15293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 15013 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-17 17:12:55,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6088 states. [2021-12-17 17:12:56,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6088 to 2842. [2021-12-17 17:12:56,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.3925133689839573) internal successors, (3906), 2841 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3906 transitions. [2021-12-17 17:12:56,692 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3906 transitions. Word has length 134 [2021-12-17 17:12:56,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:12:56,692 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3906 transitions. [2021-12-17 17:12:56,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:12:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3906 transitions. [2021-12-17 17:12:56,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:12:56,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:12:56,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:12:56,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-12-17 17:12:56,694 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:12:56,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:12:56,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1970766726, now seen corresponding path program 1 times [2021-12-17 17:12:56,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:12:56,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736631594] [2021-12-17 17:12:56,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:12:56,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:12:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:12:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:12:56,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:12:56,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736631594] [2021-12-17 17:12:56,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736631594] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:12:56,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:12:56,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:12:56,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165645672] [2021-12-17 17:12:56,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:12:56,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:12:56,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:12:56,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:12:56,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:12:56,792 INFO L87 Difference]: Start difference. First operand 2842 states and 3906 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:01,610 INFO L93 Difference]: Finished difference Result 4678 states and 6499 transitions. [2021-12-17 17:13:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:01,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:01,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:01,615 INFO L225 Difference]: With dead ends: 4678 [2021-12-17 17:13:01,615 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:13:01,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:13:01,616 INFO L933 BasicCegarLoop]: 1933 mSDtfsCounter, 10878 mSDsluCounter, 7768 mSDsCounter, 0 mSdLazyCounter, 7648 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10878 SdHoareTripleChecker+Valid, 9701 SdHoareTripleChecker+Invalid, 7986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 7648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:01,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10878 Valid, 9701 Invalid, 7986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 7648 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:13:01,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:13:02,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2842. [2021-12-17 17:13:02,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.392156862745098) internal successors, (3905), 2841 states have internal predecessors, (3905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3905 transitions. [2021-12-17 17:13:02,494 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3905 transitions. Word has length 134 [2021-12-17 17:13:02,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:02,494 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3905 transitions. [2021-12-17 17:13:02,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3905 transitions. [2021-12-17 17:13:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:02,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:02,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:02,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-12-17 17:13:02,498 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:02,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:02,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1078013356, now seen corresponding path program 1 times [2021-12-17 17:13:02,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:02,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828136354] [2021-12-17 17:13:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:02,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:02,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:02,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828136354] [2021-12-17 17:13:02,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828136354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:02,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:02,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:13:02,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330950289] [2021-12-17 17:13:02,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:02,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:13:02,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:02,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:13:02,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:13:02,596 INFO L87 Difference]: Start difference. First operand 2842 states and 3905 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:07,438 INFO L93 Difference]: Finished difference Result 4684 states and 6503 transitions. [2021-12-17 17:13:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:07,443 INFO L225 Difference]: With dead ends: 4684 [2021-12-17 17:13:07,443 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:13:07,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:13:07,444 INFO L933 BasicCegarLoop]: 2023 mSDtfsCounter, 10730 mSDsluCounter, 7921 mSDsCounter, 0 mSdLazyCounter, 7841 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10730 SdHoareTripleChecker+Valid, 9944 SdHoareTripleChecker+Invalid, 8178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 7841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:07,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10730 Valid, 9944 Invalid, 8178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 7841 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:13:07,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:13:08,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2838. [2021-12-17 17:13:08,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2801 states have (on average 1.3923598714744734) internal successors, (3900), 2837 states have internal predecessors, (3900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:08,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 3900 transitions. [2021-12-17 17:13:08,300 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 3900 transitions. Word has length 134 [2021-12-17 17:13:08,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:08,300 INFO L470 AbstractCegarLoop]: Abstraction has 2838 states and 3900 transitions. [2021-12-17 17:13:08,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:08,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 3900 transitions. [2021-12-17 17:13:08,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:08,302 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:08,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:08,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-12-17 17:13:08,303 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:08,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:08,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2003969267, now seen corresponding path program 1 times [2021-12-17 17:13:08,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:08,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428992700] [2021-12-17 17:13:08,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:08,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:08,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:08,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:08,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428992700] [2021-12-17 17:13:08,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428992700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:08,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:08,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:13:08,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125120460] [2021-12-17 17:13:08,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:08,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:13:08,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:13:08,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:13:08,402 INFO L87 Difference]: Start difference. First operand 2838 states and 3900 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:13,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:13,191 INFO L93 Difference]: Finished difference Result 4678 states and 6497 transitions. [2021-12-17 17:13:13,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:13,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:13,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:13,196 INFO L225 Difference]: With dead ends: 4678 [2021-12-17 17:13:13,196 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:13:13,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:13:13,197 INFO L933 BasicCegarLoop]: 1941 mSDtfsCounter, 10856 mSDsluCounter, 7792 mSDsCounter, 0 mSdLazyCounter, 7664 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10856 SdHoareTripleChecker+Valid, 9733 SdHoareTripleChecker+Invalid, 8002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 7664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:13,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10856 Valid, 9733 Invalid, 8002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 7664 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-17 17:13:13,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:13:14,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2838. [2021-12-17 17:13:14,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2801 states have (on average 1.3920028561228133) internal successors, (3899), 2837 states have internal predecessors, (3899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 3899 transitions. [2021-12-17 17:13:14,057 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 3899 transitions. Word has length 134 [2021-12-17 17:13:14,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:14,057 INFO L470 AbstractCegarLoop]: Abstraction has 2838 states and 3899 transitions. [2021-12-17 17:13:14,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 3899 transitions. [2021-12-17 17:13:14,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:14,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:14,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:14,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-12-17 17:13:14,059 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:14,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:14,059 INFO L85 PathProgramCache]: Analyzing trace with hash -192352666, now seen corresponding path program 1 times [2021-12-17 17:13:14,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:14,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501259097] [2021-12-17 17:13:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:14,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:14,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:14,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501259097] [2021-12-17 17:13:14,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501259097] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:14,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:14,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:13:14,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329533740] [2021-12-17 17:13:14,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:14,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:13:14,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:14,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:13:14,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:13:14,148 INFO L87 Difference]: Start difference. First operand 2838 states and 3899 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:18,575 INFO L93 Difference]: Finished difference Result 4679 states and 6497 transitions. [2021-12-17 17:13:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:18,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:18,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:18,580 INFO L225 Difference]: With dead ends: 4679 [2021-12-17 17:13:18,580 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:13:18,580 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 [2021-12-17 17:13:18,581 INFO L933 BasicCegarLoop]: 2025 mSDtfsCounter, 7076 mSDsluCounter, 6391 mSDsCounter, 0 mSdLazyCounter, 6695 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7076 SdHoareTripleChecker+Valid, 8416 SdHoareTripleChecker+Invalid, 6965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 6695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:18,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7076 Valid, 8416 Invalid, 6965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 6695 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:13:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:13:19,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2834. [2021-12-17 17:13:19,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2797 states have (on average 1.3922059349302824) internal successors, (3894), 2833 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3894 transitions. [2021-12-17 17:13:19,432 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3894 transitions. Word has length 134 [2021-12-17 17:13:19,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:19,432 INFO L470 AbstractCegarLoop]: Abstraction has 2834 states and 3894 transitions. [2021-12-17 17:13:19,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3894 transitions. [2021-12-17 17:13:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:19,434 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:19,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:19,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-12-17 17:13:19,434 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:19,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash -867120194, now seen corresponding path program 1 times [2021-12-17 17:13:19,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:19,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187350190] [2021-12-17 17:13:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:19,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:19,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:19,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187350190] [2021-12-17 17:13:19,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187350190] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:19,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:19,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:13:19,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543990301] [2021-12-17 17:13:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:19,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:13:19,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:19,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:13:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:13:19,536 INFO L87 Difference]: Start difference. First operand 2834 states and 3894 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:24,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:24,467 INFO L93 Difference]: Finished difference Result 4678 states and 6495 transitions. [2021-12-17 17:13:24,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:24,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:24,471 INFO L225 Difference]: With dead ends: 4678 [2021-12-17 17:13:24,471 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:13:24,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:13:24,472 INFO L933 BasicCegarLoop]: 2022 mSDtfsCounter, 10713 mSDsluCounter, 8033 mSDsCounter, 0 mSdLazyCounter, 7879 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10713 SdHoareTripleChecker+Valid, 10055 SdHoareTripleChecker+Invalid, 8215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 7879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:24,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10713 Valid, 10055 Invalid, 8215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 7879 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:13:24,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:13:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2834. [2021-12-17 17:13:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2797 states have (on average 1.3918484090096532) internal successors, (3893), 2833 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3893 transitions. [2021-12-17 17:13:25,312 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3893 transitions. Word has length 134 [2021-12-17 17:13:25,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:25,312 INFO L470 AbstractCegarLoop]: Abstraction has 2834 states and 3893 transitions. [2021-12-17 17:13:25,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3893 transitions. [2021-12-17 17:13:25,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:25,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:25,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:25,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-12-17 17:13:25,314 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:25,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:25,314 INFO L85 PathProgramCache]: Analyzing trace with hash 606047852, now seen corresponding path program 1 times [2021-12-17 17:13:25,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:25,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828425912] [2021-12-17 17:13:25,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:25,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:25,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:25,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:25,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828425912] [2021-12-17 17:13:25,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828425912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:25,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:25,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:13:25,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515424411] [2021-12-17 17:13:25,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:25,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:13:25,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:25,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:13:25,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:13:25,456 INFO L87 Difference]: Start difference. First operand 2834 states and 3893 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:32,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:32,936 INFO L93 Difference]: Finished difference Result 5772 states and 8087 transitions. [2021-12-17 17:13:32,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:13:32,936 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:32,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:32,940 INFO L225 Difference]: With dead ends: 5772 [2021-12-17 17:13:32,941 INFO L226 Difference]: Without dead ends: 5576 [2021-12-17 17:13:32,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:13:32,941 INFO L933 BasicCegarLoop]: 2052 mSDtfsCounter, 14770 mSDsluCounter, 7827 mSDsCounter, 0 mSdLazyCounter, 8061 mSolverCounterSat, 1597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14770 SdHoareTripleChecker+Valid, 9879 SdHoareTripleChecker+Invalid, 9658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1597 IncrementalHoareTripleChecker+Valid, 8061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:32,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14770 Valid, 9879 Invalid, 9658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1597 Valid, 8061 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-17 17:13:32,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5576 states. [2021-12-17 17:13:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5576 to 2838. [2021-12-17 17:13:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2801 states have (on average 1.391288825419493) internal successors, (3897), 2837 states have internal predecessors, (3897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 3897 transitions. [2021-12-17 17:13:33,808 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 3897 transitions. Word has length 134 [2021-12-17 17:13:33,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:33,808 INFO L470 AbstractCegarLoop]: Abstraction has 2838 states and 3897 transitions. [2021-12-17 17:13:33,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 3897 transitions. [2021-12-17 17:13:33,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:33,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:33,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:33,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-12-17 17:13:33,810 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:33,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:33,811 INFO L85 PathProgramCache]: Analyzing trace with hash -607989886, now seen corresponding path program 1 times [2021-12-17 17:13:33,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:33,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675897863] [2021-12-17 17:13:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:33,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:33,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:33,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:33,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675897863] [2021-12-17 17:13:33,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675897863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:33,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:33,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:13:33,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161139755] [2021-12-17 17:13:33,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:33,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:13:33,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:33,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:13:33,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:13:33,910 INFO L87 Difference]: Start difference. First operand 2838 states and 3897 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:38,815 INFO L93 Difference]: Finished difference Result 4694 states and 6513 transitions. [2021-12-17 17:13:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:38,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:38,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:38,819 INFO L225 Difference]: With dead ends: 4694 [2021-12-17 17:13:38,819 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:13:38,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:13:38,820 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 8283 mSDsluCounter, 7955 mSDsCounter, 0 mSdLazyCounter, 7832 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8283 SdHoareTripleChecker+Valid, 9989 SdHoareTripleChecker+Invalid, 8102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 7832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:38,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8283 Valid, 9989 Invalid, 8102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 7832 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:13:38,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:13:39,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2830. [2021-12-17 17:13:39,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2793 states have (on average 1.3916935195130684) internal successors, (3887), 2829 states have internal predecessors, (3887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 3887 transitions. [2021-12-17 17:13:39,689 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 3887 transitions. Word has length 134 [2021-12-17 17:13:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:39,689 INFO L470 AbstractCegarLoop]: Abstraction has 2830 states and 3887 transitions. [2021-12-17 17:13:39,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 3887 transitions. [2021-12-17 17:13:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:39,691 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:39,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:39,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-12-17 17:13:39,692 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:39,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:39,692 INFO L85 PathProgramCache]: Analyzing trace with hash 787025795, now seen corresponding path program 1 times [2021-12-17 17:13:39,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:39,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103006237] [2021-12-17 17:13:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:39,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:39,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:39,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103006237] [2021-12-17 17:13:39,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103006237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:39,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:39,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:13:39,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798242059] [2021-12-17 17:13:39,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:39,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:13:39,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:39,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:13:39,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:13:39,787 INFO L87 Difference]: Start difference. First operand 2830 states and 3887 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:44,429 INFO L93 Difference]: Finished difference Result 4694 states and 6511 transitions. [2021-12-17 17:13:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:44,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:44,433 INFO L225 Difference]: With dead ends: 4694 [2021-12-17 17:13:44,433 INFO L226 Difference]: Without dead ends: 4482 [2021-12-17 17:13:44,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:13:44,434 INFO L933 BasicCegarLoop]: 2038 mSDtfsCounter, 11280 mSDsluCounter, 6422 mSDsCounter, 0 mSdLazyCounter, 6704 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11280 SdHoareTripleChecker+Valid, 8460 SdHoareTripleChecker+Invalid, 7111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 6704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:44,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11280 Valid, 8460 Invalid, 7111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 6704 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:13:44,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2021-12-17 17:13:45,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 2822. [2021-12-17 17:13:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2822 states, 2785 states have (on average 1.392100538599641) internal successors, (3877), 2821 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:45,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 3877 transitions. [2021-12-17 17:13:45,288 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 3877 transitions. Word has length 134 [2021-12-17 17:13:45,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:45,288 INFO L470 AbstractCegarLoop]: Abstraction has 2822 states and 3877 transitions. [2021-12-17 17:13:45,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:45,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 3877 transitions. [2021-12-17 17:13:45,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:45,290 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:45,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:45,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-12-17 17:13:45,290 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:45,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:45,290 INFO L85 PathProgramCache]: Analyzing trace with hash 551869343, now seen corresponding path program 1 times [2021-12-17 17:13:45,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:45,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836937433] [2021-12-17 17:13:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:45,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:45,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:45,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836937433] [2021-12-17 17:13:45,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836937433] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:45,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:45,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:13:45,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092256131] [2021-12-17 17:13:45,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:45,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:13:45,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:45,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:13:45,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:13:45,380 INFO L87 Difference]: Start difference. First operand 2822 states and 3877 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:50,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:50,022 INFO L93 Difference]: Finished difference Result 4868 states and 6746 transitions. [2021-12-17 17:13:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:50,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:50,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:50,027 INFO L225 Difference]: With dead ends: 4868 [2021-12-17 17:13:50,027 INFO L226 Difference]: Without dead ends: 4630 [2021-12-17 17:13:50,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:13:50,028 INFO L933 BasicCegarLoop]: 2227 mSDtfsCounter, 10801 mSDsluCounter, 7084 mSDsCounter, 0 mSdLazyCounter, 7175 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10801 SdHoareTripleChecker+Valid, 9311 SdHoareTripleChecker+Invalid, 7384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 7175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:50,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10801 Valid, 9311 Invalid, 7384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 7175 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:13:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2021-12-17 17:13:50,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 2814. [2021-12-17 17:13:50,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2777 states have (on average 1.3925099027727763) internal successors, (3867), 2813 states have internal predecessors, (3867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:50,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3867 transitions. [2021-12-17 17:13:50,944 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3867 transitions. Word has length 134 [2021-12-17 17:13:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:50,944 INFO L470 AbstractCegarLoop]: Abstraction has 2814 states and 3867 transitions. [2021-12-17 17:13:50,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3867 transitions. [2021-12-17 17:13:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:50,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:50,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:50,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-12-17 17:13:50,947 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:50,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:50,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1624807771, now seen corresponding path program 1 times [2021-12-17 17:13:50,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:50,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345733108] [2021-12-17 17:13:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:50,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:51,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:51,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345733108] [2021-12-17 17:13:51,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345733108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:51,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:51,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:13:51,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802859912] [2021-12-17 17:13:51,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:51,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:13:51,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:51,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:13:51,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:13:51,042 INFO L87 Difference]: Start difference. First operand 2814 states and 3867 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:55,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:13:55,614 INFO L93 Difference]: Finished difference Result 4680 states and 6492 transitions. [2021-12-17 17:13:55,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:13:55,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:13:55,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:13:55,618 INFO L225 Difference]: With dead ends: 4680 [2021-12-17 17:13:55,619 INFO L226 Difference]: Without dead ends: 4474 [2021-12-17 17:13:55,619 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 [2021-12-17 17:13:55,619 INFO L933 BasicCegarLoop]: 2063 mSDtfsCounter, 8464 mSDsluCounter, 6503 mSDsCounter, 0 mSdLazyCounter, 6776 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8464 SdHoareTripleChecker+Valid, 8566 SdHoareTripleChecker+Invalid, 7080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 6776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:13:55,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8464 Valid, 8566 Invalid, 7080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 6776 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:13:55,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2021-12-17 17:13:56,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 2806. [2021-12-17 17:13:56,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2769 states have (on average 1.392921632358252) internal successors, (3857), 2805 states have internal predecessors, (3857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:56,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3857 transitions. [2021-12-17 17:13:56,472 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3857 transitions. Word has length 134 [2021-12-17 17:13:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:13:56,472 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 3857 transitions. [2021-12-17 17:13:56,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:13:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3857 transitions. [2021-12-17 17:13:56,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:13:56,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:13:56,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:13:56,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-12-17 17:13:56,475 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:13:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:13:56,475 INFO L85 PathProgramCache]: Analyzing trace with hash -315910584, now seen corresponding path program 1 times [2021-12-17 17:13:56,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:13:56,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176233209] [2021-12-17 17:13:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:13:56,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:13:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:13:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:13:56,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:13:56,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176233209] [2021-12-17 17:13:56,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176233209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:13:56,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:13:56,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:13:56,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167705548] [2021-12-17 17:13:56,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:13:56,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:13:56,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:13:56,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:13:56,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:13:56,626 INFO L87 Difference]: Start difference. First operand 2806 states and 3857 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:14:05,727 INFO L93 Difference]: Finished difference Result 6296 states and 8727 transitions. [2021-12-17 17:14:05,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-17 17:14:05,727 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:14:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:14:05,733 INFO L225 Difference]: With dead ends: 6296 [2021-12-17 17:14:05,733 INFO L226 Difference]: Without dead ends: 6088 [2021-12-17 17:14:05,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=925, Unknown=0, NotChecked=0, Total=1190 [2021-12-17 17:14:05,734 INFO L933 BasicCegarLoop]: 2672 mSDtfsCounter, 10573 mSDsluCounter, 18444 mSDsCounter, 0 mSdLazyCounter, 17801 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10573 SdHoareTripleChecker+Valid, 21116 SdHoareTripleChecker+Invalid, 18022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 17801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:14:05,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10573 Valid, 21116 Invalid, 18022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 17801 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-17 17:14:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6088 states. [2021-12-17 17:14:06,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6088 to 2798. [2021-12-17 17:14:06,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2761 states have (on average 1.3933357479174213) internal successors, (3847), 2797 states have internal predecessors, (3847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3847 transitions. [2021-12-17 17:14:06,630 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3847 transitions. Word has length 134 [2021-12-17 17:14:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:14:06,630 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3847 transitions. [2021-12-17 17:14:06,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3847 transitions. [2021-12-17 17:14:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:14:06,632 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:14:06,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:14:06,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-12-17 17:14:06,632 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:14:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:14:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1672422673, now seen corresponding path program 1 times [2021-12-17 17:14:06,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:14:06,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010821852] [2021-12-17 17:14:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:14:06,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:14:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:14:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:14:06,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:14:06,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010821852] [2021-12-17 17:14:06,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010821852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:14:06,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:14:06,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:14:06,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088123491] [2021-12-17 17:14:06,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:14:06,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:14:06,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:14:06,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:14:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:14:06,786 INFO L87 Difference]: Start difference. First operand 2798 states and 3847 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:15,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:14:15,604 INFO L93 Difference]: Finished difference Result 6296 states and 8725 transitions. [2021-12-17 17:14:15,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-17 17:14:15,604 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:14:15,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:14:15,609 INFO L225 Difference]: With dead ends: 6296 [2021-12-17 17:14:15,609 INFO L226 Difference]: Without dead ends: 6088 [2021-12-17 17:14:15,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=982, Unknown=0, NotChecked=0, Total=1260 [2021-12-17 17:14:15,610 INFO L933 BasicCegarLoop]: 2755 mSDtfsCounter, 10815 mSDsluCounter, 16853 mSDsCounter, 0 mSdLazyCounter, 16605 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10815 SdHoareTripleChecker+Valid, 19608 SdHoareTripleChecker+Invalid, 16846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 16605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:14:15,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10815 Valid, 19608 Invalid, 16846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 16605 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-17 17:14:15,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6088 states. [2021-12-17 17:14:16,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6088 to 2790. [2021-12-17 17:14:16,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2753 states have (on average 1.3937522702506357) internal successors, (3837), 2789 states have internal predecessors, (3837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3837 transitions. [2021-12-17 17:14:16,467 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3837 transitions. Word has length 134 [2021-12-17 17:14:16,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:14:16,467 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3837 transitions. [2021-12-17 17:14:16,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3837 transitions. [2021-12-17 17:14:16,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:14:16,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:14:16,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:14:16,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-12-17 17:14:16,470 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:14:16,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:14:16,470 INFO L85 PathProgramCache]: Analyzing trace with hash 520979678, now seen corresponding path program 1 times [2021-12-17 17:14:16,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:14:16,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567897054] [2021-12-17 17:14:16,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:14:16,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:14:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:14:16,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:14:16,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:14:16,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567897054] [2021-12-17 17:14:16,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567897054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:14:16,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:14:16,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:14:16,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300712888] [2021-12-17 17:14:16,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:14:16,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:14:16,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:14:16,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:14:16,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:14:16,625 INFO L87 Difference]: Start difference. First operand 2790 states and 3837 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:25,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:14:25,612 INFO L93 Difference]: Finished difference Result 6294 states and 8720 transitions. [2021-12-17 17:14:25,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-17 17:14:25,612 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:14:25,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:14:25,618 INFO L225 Difference]: With dead ends: 6294 [2021-12-17 17:14:25,618 INFO L226 Difference]: Without dead ends: 6088 [2021-12-17 17:14:25,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=925, Unknown=0, NotChecked=0, Total=1190 [2021-12-17 17:14:25,619 INFO L933 BasicCegarLoop]: 2685 mSDtfsCounter, 10859 mSDsluCounter, 16623 mSDsCounter, 0 mSdLazyCounter, 16291 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10859 SdHoareTripleChecker+Valid, 19308 SdHoareTripleChecker+Invalid, 16534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 16291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:14:25,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10859 Valid, 19308 Invalid, 16534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 16291 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-17 17:14:25,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6088 states. [2021-12-17 17:14:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6088 to 2782. [2021-12-17 17:14:26,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2745 states have (on average 1.3941712204007286) internal successors, (3827), 2781 states have internal predecessors, (3827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:26,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3827 transitions. [2021-12-17 17:14:26,482 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3827 transitions. Word has length 134 [2021-12-17 17:14:26,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:14:26,482 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3827 transitions. [2021-12-17 17:14:26,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:26,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3827 transitions. [2021-12-17 17:14:26,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:14:26,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:14:26,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:14:26,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-12-17 17:14:26,484 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:14:26,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:14:26,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1403442096, now seen corresponding path program 1 times [2021-12-17 17:14:26,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:14:26,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554425144] [2021-12-17 17:14:26,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:14:26,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:14:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:14:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:14:26,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:14:26,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554425144] [2021-12-17 17:14:26,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554425144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:14:26,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:14:26,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:14:26,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692982918] [2021-12-17 17:14:26,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:14:26,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:14:26,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:14:26,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:14:26,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:14:26,637 INFO L87 Difference]: Start difference. First operand 2782 states and 3827 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:35,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:14:35,173 INFO L93 Difference]: Finished difference Result 6294 states and 8718 transitions. [2021-12-17 17:14:35,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-17 17:14:35,173 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:14:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:14:35,178 INFO L225 Difference]: With dead ends: 6294 [2021-12-17 17:14:35,178 INFO L226 Difference]: Without dead ends: 6088 [2021-12-17 17:14:35,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=925, Unknown=0, NotChecked=0, Total=1190 [2021-12-17 17:14:35,179 INFO L933 BasicCegarLoop]: 2690 mSDtfsCounter, 10584 mSDsluCounter, 16020 mSDsCounter, 0 mSdLazyCounter, 15877 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10584 SdHoareTripleChecker+Valid, 18710 SdHoareTripleChecker+Invalid, 16100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 15877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:14:35,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10584 Valid, 18710 Invalid, 16100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 15877 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-17 17:14:35,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6088 states. [2021-12-17 17:14:36,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6088 to 2774. [2021-12-17 17:14:36,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.3945926196565583) internal successors, (3817), 2773 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3817 transitions. [2021-12-17 17:14:36,046 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3817 transitions. Word has length 134 [2021-12-17 17:14:36,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:14:36,046 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3817 transitions. [2021-12-17 17:14:36,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3817 transitions. [2021-12-17 17:14:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:14:36,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:14:36,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:14:36,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-12-17 17:14:36,048 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:14:36,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:14:36,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1458883417, now seen corresponding path program 1 times [2021-12-17 17:14:36,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:14:36,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519852449] [2021-12-17 17:14:36,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:14:36,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:14:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:14:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:14:36,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:14:36,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519852449] [2021-12-17 17:14:36,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519852449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:14:36,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:14:36,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:14:36,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383484388] [2021-12-17 17:14:36,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:14:36,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:14:36,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:14:36,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:14:36,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:14:36,150 INFO L87 Difference]: Start difference. First operand 2774 states and 3817 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:41,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:14:41,184 INFO L93 Difference]: Finished difference Result 4676 states and 6478 transitions. [2021-12-17 17:14:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:14:41,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:14:41,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:14:41,188 INFO L225 Difference]: With dead ends: 4676 [2021-12-17 17:14:41,188 INFO L226 Difference]: Without dead ends: 4474 [2021-12-17 17:14:41,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:14:41,189 INFO L933 BasicCegarLoop]: 2011 mSDtfsCounter, 10686 mSDsluCounter, 8002 mSDsCounter, 0 mSdLazyCounter, 7833 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10686 SdHoareTripleChecker+Valid, 10013 SdHoareTripleChecker+Invalid, 8170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 7833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:14:41,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10686 Valid, 10013 Invalid, 8170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 7833 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-17 17:14:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2021-12-17 17:14:42,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 2774. [2021-12-17 17:14:42,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.39386189258312) internal successors, (3815), 2773 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3815 transitions. [2021-12-17 17:14:42,046 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3815 transitions. Word has length 134 [2021-12-17 17:14:42,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:14:42,046 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3815 transitions. [2021-12-17 17:14:42,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3815 transitions. [2021-12-17 17:14:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 17:14:42,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:14:42,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:14:42,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-12-17 17:14:42,048 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:14:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:14:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash -246991513, now seen corresponding path program 1 times [2021-12-17 17:14:42,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:14:42,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064208891] [2021-12-17 17:14:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:14:42,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:14:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:14:42,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:14:42,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:14:42,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064208891] [2021-12-17 17:14:42,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064208891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:14:42,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:14:42,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:14:42,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409169672] [2021-12-17 17:14:42,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:14:42,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:14:42,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:14:42,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:14:42,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:14:42,138 INFO L87 Difference]: Start difference. First operand 2774 states and 3815 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:14:46,709 INFO L93 Difference]: Finished difference Result 4678 states and 6478 transitions. [2021-12-17 17:14:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:14:46,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-17 17:14:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:14:46,713 INFO L225 Difference]: With dead ends: 4678 [2021-12-17 17:14:46,713 INFO L226 Difference]: Without dead ends: 4474 [2021-12-17 17:14:46,714 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 [2021-12-17 17:14:46,714 INFO L933 BasicCegarLoop]: 2150 mSDtfsCounter, 8110 mSDsluCounter, 6764 mSDsCounter, 0 mSdLazyCounter, 7083 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8110 SdHoareTripleChecker+Valid, 8914 SdHoareTripleChecker+Invalid, 7384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 7083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:14:46,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8110 Valid, 8914 Invalid, 7384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 7083 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:14:46,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2021-12-17 17:14:47,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 2766. [2021-12-17 17:14:47,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.3942836203737632) internal successors, (3805), 2765 states have internal predecessors, (3805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3805 transitions. [2021-12-17 17:14:47,575 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3805 transitions. Word has length 134 [2021-12-17 17:14:47,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:14:47,575 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3805 transitions. [2021-12-17 17:14:47,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3805 transitions. [2021-12-17 17:14:47,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 17:14:47,577 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:14:47,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:14:47,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-12-17 17:14:47,578 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:14:47,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:14:47,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1653170375, now seen corresponding path program 1 times [2021-12-17 17:14:47,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:14:47,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155014694] [2021-12-17 17:14:47,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:14:47,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:14:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:14:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:14:47,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:14:47,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155014694] [2021-12-17 17:14:47,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155014694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:14:47,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:14:47,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:14:47,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172472714] [2021-12-17 17:14:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:14:47,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:14:47,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:14:47,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:14:47,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:14:47,670 INFO L87 Difference]: Start difference. First operand 2766 states and 3805 transitions. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:52,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:14:52,131 INFO L93 Difference]: Finished difference Result 4505 states and 6197 transitions. [2021-12-17 17:14:52,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:14:52,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-17 17:14:52,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:14:52,135 INFO L225 Difference]: With dead ends: 4505 [2021-12-17 17:14:52,135 INFO L226 Difference]: Without dead ends: 4310 [2021-12-17 17:14:52,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:14:52,136 INFO L933 BasicCegarLoop]: 1749 mSDtfsCounter, 10945 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 6089 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10945 SdHoareTripleChecker+Valid, 7140 SdHoareTripleChecker+Invalid, 6729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 6089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:14:52,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10945 Valid, 7140 Invalid, 6729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 6089 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:14:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4310 states. [2021-12-17 17:14:53,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4310 to 2766. [2021-12-17 17:14:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.3939171857823378) internal successors, (3804), 2765 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3804 transitions. [2021-12-17 17:14:53,009 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3804 transitions. Word has length 135 [2021-12-17 17:14:53,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:14:53,009 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3804 transitions. [2021-12-17 17:14:53,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:53,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3804 transitions. [2021-12-17 17:14:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 17:14:53,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:14:53,012 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:14:53,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-12-17 17:14:53,012 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:14:53,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:14:53,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1145669143, now seen corresponding path program 1 times [2021-12-17 17:14:53,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:14:53,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016144525] [2021-12-17 17:14:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:14:53,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:14:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:14:53,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:14:53,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:14:53,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016144525] [2021-12-17 17:14:53,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016144525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:14:53,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:14:53,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:14:53,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354347416] [2021-12-17 17:14:53,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:14:53,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:14:53,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:14:53,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:14:53,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:14:53,104 INFO L87 Difference]: Start difference. First operand 2766 states and 3804 transitions. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:57,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:14:57,733 INFO L93 Difference]: Finished difference Result 4502 states and 6193 transitions. [2021-12-17 17:14:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:14:57,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-17 17:14:57,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:14:57,737 INFO L225 Difference]: With dead ends: 4502 [2021-12-17 17:14:57,737 INFO L226 Difference]: Without dead ends: 4310 [2021-12-17 17:14:57,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:14:57,738 INFO L933 BasicCegarLoop]: 1802 mSDtfsCounter, 11194 mSDsluCounter, 5550 mSDsCounter, 0 mSdLazyCounter, 6319 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11194 SdHoareTripleChecker+Valid, 7352 SdHoareTripleChecker+Invalid, 7109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 6319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:14:57,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11194 Valid, 7352 Invalid, 7109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 6319 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:14:57,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4310 states. [2021-12-17 17:14:58,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4310 to 2766. [2021-12-17 17:14:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2729 states have (on average 1.3935507511909124) internal successors, (3803), 2765 states have internal predecessors, (3803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3803 transitions. [2021-12-17 17:14:58,632 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3803 transitions. Word has length 135 [2021-12-17 17:14:58,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:14:58,632 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3803 transitions. [2021-12-17 17:14:58,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:14:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3803 transitions. [2021-12-17 17:14:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 17:14:58,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:14:58,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:14:58,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-12-17 17:14:58,634 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:14:58,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:14:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1886660346, now seen corresponding path program 1 times [2021-12-17 17:14:58,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:14:58,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703775925] [2021-12-17 17:14:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:14:58,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:14:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:14:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:14:58,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:14:58,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703775925] [2021-12-17 17:14:58,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703775925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:14:58,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:14:58,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:14:58,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688263099] [2021-12-17 17:14:58,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:14:58,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:14:58,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:14:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:14:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:14:58,774 INFO L87 Difference]: Start difference. First operand 2766 states and 3803 transitions. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:06,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:15:06,047 INFO L93 Difference]: Finished difference Result 5406 states and 7506 transitions. [2021-12-17 17:15:06,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:15:06,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-17 17:15:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:15:06,053 INFO L225 Difference]: With dead ends: 5406 [2021-12-17 17:15:06,053 INFO L226 Difference]: Without dead ends: 5211 [2021-12-17 17:15:06,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:15:06,054 INFO L933 BasicCegarLoop]: 1825 mSDtfsCounter, 14522 mSDsluCounter, 6019 mSDsCounter, 0 mSdLazyCounter, 6675 mSolverCounterSat, 2196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14522 SdHoareTripleChecker+Valid, 7844 SdHoareTripleChecker+Invalid, 8871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2196 IncrementalHoareTripleChecker+Valid, 6675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:15:06,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14522 Valid, 7844 Invalid, 8871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2196 Valid, 6675 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-17 17:15:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5211 states. [2021-12-17 17:15:06,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 2770. [2021-12-17 17:15:06,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2733 states have (on average 1.392974753018661) internal successors, (3807), 2769 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3807 transitions. [2021-12-17 17:15:06,995 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3807 transitions. Word has length 135 [2021-12-17 17:15:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:15:06,995 INFO L470 AbstractCegarLoop]: Abstraction has 2770 states and 3807 transitions. [2021-12-17 17:15:06,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:06,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3807 transitions. [2021-12-17 17:15:06,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 17:15:06,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:15:06,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:15:06,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-12-17 17:15:06,997 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:15:06,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:15:06,997 INFO L85 PathProgramCache]: Analyzing trace with hash 413089362, now seen corresponding path program 1 times [2021-12-17 17:15:06,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:15:06,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882657068] [2021-12-17 17:15:06,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:15:06,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:15:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:15:07,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:15:07,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:15:07,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882657068] [2021-12-17 17:15:07,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882657068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:15:07,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:15:07,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:15:07,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959325793] [2021-12-17 17:15:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:15:07,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:15:07,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:15:07,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:15:07,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:15:07,092 INFO L87 Difference]: Start difference. First operand 2770 states and 3807 transitions. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:11,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:15:11,845 INFO L93 Difference]: Finished difference Result 4502 states and 6191 transitions. [2021-12-17 17:15:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:15:11,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-17 17:15:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:15:11,849 INFO L225 Difference]: With dead ends: 4502 [2021-12-17 17:15:11,849 INFO L226 Difference]: Without dead ends: 4310 [2021-12-17 17:15:11,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 17:15:11,850 INFO L933 BasicCegarLoop]: 1802 mSDtfsCounter, 11193 mSDsluCounter, 5550 mSDsCounter, 0 mSdLazyCounter, 6306 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11193 SdHoareTripleChecker+Valid, 7352 SdHoareTripleChecker+Invalid, 7096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 6306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:15:11,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11193 Valid, 7352 Invalid, 7096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 6306 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:15:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4310 states. [2021-12-17 17:15:12,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4310 to 2770. [2021-12-17 17:15:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2733 states have (on average 1.3926088547383828) internal successors, (3806), 2769 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3806 transitions. [2021-12-17 17:15:12,768 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3806 transitions. Word has length 135 [2021-12-17 17:15:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:15:12,769 INFO L470 AbstractCegarLoop]: Abstraction has 2770 states and 3806 transitions. [2021-12-17 17:15:12,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3806 transitions. [2021-12-17 17:15:12,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 17:15:12,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:15:12,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:15:12,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-12-17 17:15:12,771 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:15:12,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:15:12,771 INFO L85 PathProgramCache]: Analyzing trace with hash -849431271, now seen corresponding path program 1 times [2021-12-17 17:15:12,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:15:12,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112837032] [2021-12-17 17:15:12,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:15:12,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:15:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:15:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:15:12,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:15:12,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112837032] [2021-12-17 17:15:12,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112837032] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:15:12,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:15:12,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:15:12,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543229358] [2021-12-17 17:15:12,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:15:12,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:15:12,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:15:12,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:15:12,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:15:12,920 INFO L87 Difference]: Start difference. First operand 2770 states and 3806 transitions. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:20,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:15:20,627 INFO L93 Difference]: Finished difference Result 5406 states and 7504 transitions. [2021-12-17 17:15:20,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:15:20,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-17 17:15:20,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:15:20,632 INFO L225 Difference]: With dead ends: 5406 [2021-12-17 17:15:20,633 INFO L226 Difference]: Without dead ends: 5211 [2021-12-17 17:15:20,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:15:20,633 INFO L933 BasicCegarLoop]: 1878 mSDtfsCounter, 16040 mSDsluCounter, 7183 mSDsCounter, 0 mSdLazyCounter, 8118 mSolverCounterSat, 2587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16040 SdHoareTripleChecker+Valid, 9061 SdHoareTripleChecker+Invalid, 10705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2587 IncrementalHoareTripleChecker+Valid, 8118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:15:20,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16040 Valid, 9061 Invalid, 10705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2587 Valid, 8118 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-17 17:15:20,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5211 states. [2021-12-17 17:15:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 2774. [2021-12-17 17:15:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.392035074899525) internal successors, (3810), 2773 states have internal predecessors, (3810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3810 transitions. [2021-12-17 17:15:21,592 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3810 transitions. Word has length 135 [2021-12-17 17:15:21,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:15:21,592 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3810 transitions. [2021-12-17 17:15:21,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3810 transitions. [2021-12-17 17:15:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 17:15:21,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:15:21,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:15:21,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-12-17 17:15:21,595 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:15:21,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:15:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1061783438, now seen corresponding path program 1 times [2021-12-17 17:15:21,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:15:21,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606565266] [2021-12-17 17:15:21,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:15:21,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:15:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:15:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:15:21,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:15:21,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606565266] [2021-12-17 17:15:21,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606565266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:15:21,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:15:21,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:15:21,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226999965] [2021-12-17 17:15:21,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:15:21,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:15:21,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:15:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:15:21,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:15:21,688 INFO L87 Difference]: Start difference. First operand 2774 states and 3810 transitions. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:26,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:15:26,447 INFO L93 Difference]: Finished difference Result 4502 states and 6189 transitions. [2021-12-17 17:15:26,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:15:26,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-17 17:15:26,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:15:26,451 INFO L225 Difference]: With dead ends: 4502 [2021-12-17 17:15:26,451 INFO L226 Difference]: Without dead ends: 4310 [2021-12-17 17:15:26,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:15:26,452 INFO L933 BasicCegarLoop]: 1820 mSDtfsCounter, 8536 mSDsluCounter, 6195 mSDsCounter, 0 mSdLazyCounter, 6762 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8536 SdHoareTripleChecker+Valid, 8015 SdHoareTripleChecker+Invalid, 7277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 6762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:15:26,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8536 Valid, 8015 Invalid, 7277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 6762 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:15:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4310 states. [2021-12-17 17:15:27,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4310 to 2774. [2021-12-17 17:15:27,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2737 states have (on average 1.391669711362806) internal successors, (3809), 2773 states have internal predecessors, (3809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:27,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3809 transitions. [2021-12-17 17:15:27,392 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3809 transitions. Word has length 135 [2021-12-17 17:15:27,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:15:27,393 INFO L470 AbstractCegarLoop]: Abstraction has 2774 states and 3809 transitions. [2021-12-17 17:15:27,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:27,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3809 transitions. [2021-12-17 17:15:27,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 17:15:27,395 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:15:27,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:15:27,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-12-17 17:15:27,395 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-17 17:15:27,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:15:27,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1609107349, now seen corresponding path program 1 times [2021-12-17 17:15:27,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:15:27,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29827864] [2021-12-17 17:15:27,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:15:27,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:15:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:15:27,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:15:27,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:15:27,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29827864] [2021-12-17 17:15:27,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29827864] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:15:27,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:15:27,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:15:27,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474796733] [2021-12-17 17:15:27,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:15:27,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:15:27,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:15:27,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:15:27,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:15:27,481 INFO L87 Difference]: Start difference. First operand 2774 states and 3809 transitions. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:15:32,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:15:32,129 INFO L93 Difference]: Finished difference Result 4683 states and 6472 transitions. [2021-12-17 17:15:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:15:32,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-17 17:15:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:15:32,133 INFO L225 Difference]: With dead ends: 4683 [2021-12-17 17:15:32,133 INFO L226 Difference]: Without dead ends: 4486 [2021-12-17 17:15:32,134 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 [2021-12-17 17:15:32,134 INFO L933 BasicCegarLoop]: 2077 mSDtfsCounter, 10720 mSDsluCounter, 6642 mSDsCounter, 0 mSdLazyCounter, 6861 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10720 SdHoareTripleChecker+Valid, 8719 SdHoareTripleChecker+Invalid, 7262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 6861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:15:32,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10720 Valid, 8719 Invalid, 7262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 6861 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:15:32,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. Killed by 15