./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.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 6c698c3a474f0bb431ef6e81ac39d288198716f9950dc2b1ea90a04cccf08b06 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 19:10:19,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 19:10:19,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 19:10:19,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 19:10:19,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 19:10:19,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 19:10:19,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 19:10:19,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 19:10:19,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 19:10:19,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 19:10:19,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 19:10:19,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 19:10:19,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 19:10:19,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 19:10:19,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 19:10:19,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 19:10:19,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 19:10:19,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 19:10:19,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 19:10:19,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 19:10:19,491 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 19:10:19,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 19:10:19,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 19:10:19,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 19:10:19,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 19:10:19,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 19:10:19,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 19:10:19,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 19:10:19,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 19:10:19,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 19:10:19,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 19:10:19,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 19:10:19,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 19:10:19,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 19:10:19,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 19:10:19,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 19:10:19,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 19:10:19,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 19:10:19,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 19:10:19,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 19:10:19,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 19:10:19,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 19:10:19,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 19:10:19,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 19:10:19,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 19:10:19,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 19:10:19,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 19:10:19,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 19:10:19,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 19:10:19,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 19:10:19,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 19:10:19,531 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 19:10:19,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 19:10:19,532 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 19:10:19,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 19:10:19,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 19:10:19,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 19:10:19,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 19:10:19,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 19:10:19,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 19:10:19,533 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 19:10:19,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 19:10:19,533 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 19:10:19,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 19:10:19,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 19:10:19,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 19:10:19,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 19:10:19,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:10:19,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 19:10:19,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 19:10:19,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 19:10:19,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 19:10:19,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 19:10:19,535 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 19:10:19,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 19:10:19,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 19:10:19,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c698c3a474f0bb431ef6e81ac39d288198716f9950dc2b1ea90a04cccf08b06 [2022-07-13 19:10:19,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 19:10:19,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 19:10:19,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 19:10:19,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 19:10:19,713 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 19:10:19,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-07-13 19:10:19,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b773a00/db751ccbd18141278498ce8b544ac34f/FLAG1e187e970 [2022-07-13 19:10:20,370 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 19:10:20,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-07-13 19:10:20,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b773a00/db751ccbd18141278498ce8b544ac34f/FLAG1e187e970 [2022-07-13 19:10:20,536 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28b773a00/db751ccbd18141278498ce8b544ac34f [2022-07-13 19:10:20,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 19:10:20,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 19:10:20,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 19:10:20,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 19:10:20,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 19:10:20,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:10:20" (1/1) ... [2022-07-13 19:10:20,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9c17a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:20, skipping insertion in model container [2022-07-13 19:10:20,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:10:20" (1/1) ... [2022-07-13 19:10:20,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 19:10:20,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 19:10:21,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17604,17617] [2022-07-13 19:10:21,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22921,22934] [2022-07-13 19:10:21,088 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.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24278,24291] [2022-07-13 19:10:21,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25086,25099] [2022-07-13 19:10:21,100 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.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26814,26827] [2022-07-13 19:10:21,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27622,27635] [2022-07-13 19:10:21,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28801,28814] [2022-07-13 19:10:21,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31541,31554] [2022-07-13 19:10:21,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32352,32365] [2022-07-13 19:10:21,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33534,33547] [2022-07-13 19:10:21,146 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35725,35738] [2022-07-13 19:10:21,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39985,39998] [2022-07-13 19:10:21,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40796,40809] [2022-07-13 19:10:21,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41978,41991] [2022-07-13 19:10:21,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44169,44182] [2022-07-13 19:10:21,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47880,47893] [2022-07-13 19:10:21,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54627,54640] [2022-07-13 19:10:21,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55438,55451] [2022-07-13 19:10:21,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56581,56594] [2022-07-13 19:10:21,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58733,58746] [2022-07-13 19:10:21,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62650,62663] [2022-07-13 19:10:21,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69599,69612] [2022-07-13 19:10:21,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82335,82348] [2022-07-13 19:10:21,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83146,83159] [2022-07-13 19:10:21,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84328,84341] [2022-07-13 19:10:21,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86519,86532] [2022-07-13 19:10:21,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90230,90243] [2022-07-13 19:10:21,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96428,96441] [2022-07-13 19:10:21,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[107019,107032] [2022-07-13 19:10:21,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:10:21,901 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 19:10:21,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17604,17617] [2022-07-13 19:10:21,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22921,22934] [2022-07-13 19:10:21,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24278,24291] [2022-07-13 19:10:21,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25086,25099] [2022-07-13 19:10:21,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26814,26827] [2022-07-13 19:10:21,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27622,27635] [2022-07-13 19:10:21,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28801,28814] [2022-07-13 19:10:21,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31541,31554] [2022-07-13 19:10:21,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32352,32365] [2022-07-13 19:10:21,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33534,33547] [2022-07-13 19:10:22,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35725,35738] [2022-07-13 19:10:22,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39985,39998] [2022-07-13 19:10:22,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40796,40809] [2022-07-13 19:10:22,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41978,41991] [2022-07-13 19:10:22,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44169,44182] [2022-07-13 19:10:22,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47880,47893] [2022-07-13 19:10:22,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54627,54640] [2022-07-13 19:10:22,053 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.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55438,55451] [2022-07-13 19:10:22,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56581,56594] [2022-07-13 19:10:22,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58733,58746] [2022-07-13 19:10:22,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62650,62663] [2022-07-13 19:10:22,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69599,69612] [2022-07-13 19:10:22,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82335,82348] [2022-07-13 19:10:22,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83146,83159] [2022-07-13 19:10:22,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84328,84341] [2022-07-13 19:10:22,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86519,86532] [2022-07-13 19:10:22,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90230,90243] [2022-07-13 19:10:22,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96428,96441] [2022-07-13 19:10:22,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[107019,107032] [2022-07-13 19:10:22,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:10:22,518 INFO L208 MainTranslator]: Completed translation [2022-07-13 19:10:22,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22 WrapperNode [2022-07-13 19:10:22,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 19:10:22,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 19:10:22,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 19:10:22,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 19:10:22,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,708 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12603 [2022-07-13 19:10:22,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 19:10:22,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 19:10:22,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 19:10:22,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 19:10:22,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 19:10:22,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 19:10:22,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 19:10:22,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 19:10:22,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (1/1) ... [2022-07-13 19:10:22,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:10:22,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 19:10:22,999 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) [2022-07-13 19:10:23,008 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 [2022-07-13 19:10:23,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 19:10:23,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 19:10:23,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 19:10:23,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 19:10:23,411 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 19:10:23,413 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 19:10:26,882 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 19:10:26,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 19:10:26,910 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 19:10:26,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:10:26 BoogieIcfgContainer [2022-07-13 19:10:26,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 19:10:26,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 19:10:26,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 19:10:26,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 19:10:26,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 07:10:20" (1/3) ... [2022-07-13 19:10:26,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9abf0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:10:26, skipping insertion in model container [2022-07-13 19:10:26,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:10:22" (2/3) ... [2022-07-13 19:10:26,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9abf0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:10:26, skipping insertion in model container [2022-07-13 19:10:26,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:10:26" (3/3) ... [2022-07-13 19:10:26,921 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-07-13 19:10:26,931 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 19:10:26,931 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-07-13 19:10:26,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 19:10:26,999 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4344366f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@25dec40a [2022-07-13 19:10:26,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-07-13 19:10:27,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 2052 states have (on average 1.8606237816764133) internal successors, (3818), 2081 states have internal predecessors, (3818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:27,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-13 19:10:27,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:27,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:27,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:27,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1477171740, now seen corresponding path program 1 times [2022-07-13 19:10:27,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:27,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051681251] [2022-07-13 19:10:27,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:27,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:27,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:27,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051681251] [2022-07-13 19:10:27,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051681251] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:27,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:27,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:10:27,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694739706] [2022-07-13 19:10:27,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:27,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:10:27,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:27,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:10:27,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:10:27,470 INFO L87 Difference]: Start difference. First operand has 2082 states, 2052 states have (on average 1.8606237816764133) internal successors, (3818), 2081 states have internal predecessors, (3818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:28,745 INFO L93 Difference]: Finished difference Result 3681 states and 6458 transitions. [2022-07-13 19:10:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:10:28,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-07-13 19:10:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:28,768 INFO L225 Difference]: With dead ends: 3681 [2022-07-13 19:10:28,768 INFO L226 Difference]: Without dead ends: 2156 [2022-07-13 19:10:28,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:10:28,776 INFO L413 NwaCegarLoop]: 1861 mSDtfsCounter, 10114 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10114 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:28,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10114 Valid, 2458 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:28,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-07-13 19:10:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2054. [2022-07-13 19:10:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 2025 states have (on average 1.3688888888888888) internal successors, (2772), 2053 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2772 transitions. [2022-07-13 19:10:28,946 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2772 transitions. Word has length 101 [2022-07-13 19:10:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:28,947 INFO L495 AbstractCegarLoop]: Abstraction has 2054 states and 2772 transitions. [2022-07-13 19:10:28,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2772 transitions. [2022-07-13 19:10:28,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 19:10:28,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:28,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:28,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 19:10:28,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:28,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:28,963 INFO L85 PathProgramCache]: Analyzing trace with hash 951904542, now seen corresponding path program 1 times [2022-07-13 19:10:28,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:28,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073379298] [2022-07-13 19:10:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:28,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:29,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:29,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073379298] [2022-07-13 19:10:29,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073379298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:29,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:29,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:10:29,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362735613] [2022-07-13 19:10:29,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:29,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:10:29,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:29,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:10:29,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:10:29,118 INFO L87 Difference]: Start difference. First operand 2054 states and 2772 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:29,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:29,813 INFO L93 Difference]: Finished difference Result 3542 states and 4915 transitions. [2022-07-13 19:10:29,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:10:29,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-07-13 19:10:29,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:29,820 INFO L225 Difference]: With dead ends: 3542 [2022-07-13 19:10:29,820 INFO L226 Difference]: Without dead ends: 1822 [2022-07-13 19:10:29,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:10:29,825 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 5185 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5185 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:29,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5185 Valid, 1010 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:10:29,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-07-13 19:10:29,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1822. [2022-07-13 19:10:29,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1793 states have (on average 1.3976575571667595) internal successors, (2506), 1821 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:29,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 2506 transitions. [2022-07-13 19:10:29,877 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 2506 transitions. Word has length 102 [2022-07-13 19:10:29,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:29,878 INFO L495 AbstractCegarLoop]: Abstraction has 1822 states and 2506 transitions. [2022-07-13 19:10:29,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:29,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 2506 transitions. [2022-07-13 19:10:29,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 19:10:29,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:29,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:29,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 19:10:29,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:29,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash -873201018, now seen corresponding path program 1 times [2022-07-13 19:10:29,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:29,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82510099] [2022-07-13 19:10:29,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:29,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:29,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:29,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82510099] [2022-07-13 19:10:29,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82510099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:29,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:29,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:10:29,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939932217] [2022-07-13 19:10:29,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:29,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:10:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:29,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:10:29,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:10:29,995 INFO L87 Difference]: Start difference. First operand 1822 states and 2506 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:30,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:30,854 INFO L93 Difference]: Finished difference Result 3310 states and 4647 transitions. [2022-07-13 19:10:30,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:10:30,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-07-13 19:10:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:30,860 INFO L225 Difference]: With dead ends: 3310 [2022-07-13 19:10:30,860 INFO L226 Difference]: Without dead ends: 1742 [2022-07-13 19:10:30,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:10:30,863 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 4732 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4732 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:30,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4732 Valid, 774 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:10:30,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-07-13 19:10:30,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1742. [2022-07-13 19:10:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1713 states have (on average 1.4057209573847051) internal successors, (2408), 1741 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2408 transitions. [2022-07-13 19:10:30,913 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2408 transitions. Word has length 103 [2022-07-13 19:10:30,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:30,913 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2408 transitions. [2022-07-13 19:10:30,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2408 transitions. [2022-07-13 19:10:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-13 19:10:30,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:30,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:30,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 19:10:30,917 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:30,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:30,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1608818971, now seen corresponding path program 1 times [2022-07-13 19:10:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:30,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200802809] [2022-07-13 19:10:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:30,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:31,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:31,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:31,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200802809] [2022-07-13 19:10:31,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200802809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:31,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:31,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:10:31,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393225224] [2022-07-13 19:10:31,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:31,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:10:31,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:31,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:10:31,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:10:31,020 INFO L87 Difference]: Start difference. First operand 1742 states and 2408 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:31,646 INFO L93 Difference]: Finished difference Result 3230 states and 4547 transitions. [2022-07-13 19:10:31,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:10:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-07-13 19:10:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:31,652 INFO L225 Difference]: With dead ends: 3230 [2022-07-13 19:10:31,653 INFO L226 Difference]: Without dead ends: 1654 [2022-07-13 19:10:31,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:10:31,655 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 4637 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:31,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4637 Valid, 890 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:10:31,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-07-13 19:10:31,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2022-07-13 19:10:31,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1625 states have (on average 1.4215384615384616) internal successors, (2310), 1653 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2310 transitions. [2022-07-13 19:10:31,744 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2310 transitions. Word has length 104 [2022-07-13 19:10:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:31,745 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 2310 transitions. [2022-07-13 19:10:31,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2310 transitions. [2022-07-13 19:10:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-13 19:10:31,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:31,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:31,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 19:10:31,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:31,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:31,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1915103433, now seen corresponding path program 1 times [2022-07-13 19:10:31,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:31,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586777559] [2022-07-13 19:10:31,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:31,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:31,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:31,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586777559] [2022-07-13 19:10:31,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586777559] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:31,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:31,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:10:31,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883106546] [2022-07-13 19:10:31,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:31,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:10:31,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:31,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:10:31,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:10:31,818 INFO L87 Difference]: Start difference. First operand 1654 states and 2310 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:32,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:32,354 INFO L93 Difference]: Finished difference Result 3142 states and 4447 transitions. [2022-07-13 19:10:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:10:32,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-07-13 19:10:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:32,360 INFO L225 Difference]: With dead ends: 3142 [2022-07-13 19:10:32,360 INFO L226 Difference]: Without dead ends: 1601 [2022-07-13 19:10:32,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:10:32,363 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 4501 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4501 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:32,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4501 Valid, 861 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:10:32,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-07-13 19:10:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2022-07-13 19:10:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1572 states have (on average 1.4319338422391859) internal successors, (2251), 1600 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2251 transitions. [2022-07-13 19:10:32,438 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2251 transitions. Word has length 105 [2022-07-13 19:10:32,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:32,439 INFO L495 AbstractCegarLoop]: Abstraction has 1601 states and 2251 transitions. [2022-07-13 19:10:32,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2251 transitions. [2022-07-13 19:10:32,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-13 19:10:32,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:32,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:32,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 19:10:32,442 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:32,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:32,442 INFO L85 PathProgramCache]: Analyzing trace with hash -578368317, now seen corresponding path program 1 times [2022-07-13 19:10:32,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:32,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932708943] [2022-07-13 19:10:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:32,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:32,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:32,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932708943] [2022-07-13 19:10:32,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932708943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:32,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:32,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:10:32,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374568735] [2022-07-13 19:10:32,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:32,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:10:32,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:32,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:10:32,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:10:32,529 INFO L87 Difference]: Start difference. First operand 1601 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:33,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:33,113 INFO L93 Difference]: Finished difference Result 3089 states and 4386 transitions. [2022-07-13 19:10:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:10:33,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-07-13 19:10:33,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:33,118 INFO L225 Difference]: With dead ends: 3089 [2022-07-13 19:10:33,118 INFO L226 Difference]: Without dead ends: 1576 [2022-07-13 19:10:33,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:10:33,151 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 4400 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4400 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:33,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4400 Valid, 848 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:10:33,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-07-13 19:10:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2022-07-13 19:10:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.436328377504848) internal successors, (2222), 1575 states have internal predecessors, (2222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:33,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2222 transitions. [2022-07-13 19:10:33,206 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2222 transitions. Word has length 106 [2022-07-13 19:10:33,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:33,207 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 2222 transitions. [2022-07-13 19:10:33,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:33,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2222 transitions. [2022-07-13 19:10:33,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-13 19:10:33,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:33,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:33,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 19:10:33,210 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:33,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:33,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1323333204, now seen corresponding path program 1 times [2022-07-13 19:10:33,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:33,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984917296] [2022-07-13 19:10:33,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:33,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:33,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:33,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984917296] [2022-07-13 19:10:33,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984917296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:33,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:33,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:10:33,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363761936] [2022-07-13 19:10:33,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:33,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:10:33,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:33,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:10:33,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:10:33,302 INFO L87 Difference]: Start difference. First operand 1576 states and 2222 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:33,945 INFO L93 Difference]: Finished difference Result 3064 states and 4355 transitions. [2022-07-13 19:10:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:10:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-07-13 19:10:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:33,952 INFO L225 Difference]: With dead ends: 3064 [2022-07-13 19:10:33,952 INFO L226 Difference]: Without dead ends: 1568 [2022-07-13 19:10:33,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:10:33,955 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 4253 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4253 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:33,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4253 Valid, 781 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:10:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2022-07-13 19:10:34,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1568. [2022-07-13 19:10:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4366471734892787) internal successors, (2211), 1567 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:34,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2211 transitions. [2022-07-13 19:10:34,023 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2211 transitions. Word has length 107 [2022-07-13 19:10:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:34,023 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2211 transitions. [2022-07-13 19:10:34,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2211 transitions. [2022-07-13 19:10:34,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 19:10:34,025 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:34,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:34,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 19:10:34,026 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:34,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:34,026 INFO L85 PathProgramCache]: Analyzing trace with hash 65664385, now seen corresponding path program 1 times [2022-07-13 19:10:34,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:34,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117098087] [2022-07-13 19:10:34,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:34,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:34,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:34,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117098087] [2022-07-13 19:10:34,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117098087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:34,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:34,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 19:10:34,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398121492] [2022-07-13 19:10:34,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:34,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 19:10:34,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:34,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 19:10:34,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:10:34,191 INFO L87 Difference]: Start difference. First operand 1568 states and 2211 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:36,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:36,031 INFO L93 Difference]: Finished difference Result 3025 states and 4293 transitions. [2022-07-13 19:10:36,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 19:10:36,031 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-13 19:10:36,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:36,039 INFO L225 Difference]: With dead ends: 3025 [2022-07-13 19:10:36,039 INFO L226 Difference]: Without dead ends: 2757 [2022-07-13 19:10:36,040 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:36,040 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 4567 mSDsluCounter, 3693 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4567 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:36,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4567 Valid, 4571 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:10:36,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2022-07-13 19:10:36,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 1568. [2022-07-13 19:10:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4353476283300846) internal successors, (2209), 1567 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:36,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2209 transitions. [2022-07-13 19:10:36,130 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2209 transitions. Word has length 108 [2022-07-13 19:10:36,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:36,130 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2209 transitions. [2022-07-13 19:10:36,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2209 transitions. [2022-07-13 19:10:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 19:10:36,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:36,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:36,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 19:10:36,133 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:36,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:36,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1945173323, now seen corresponding path program 1 times [2022-07-13 19:10:36,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:36,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180996422] [2022-07-13 19:10:36,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:36,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:36,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180996422] [2022-07-13 19:10:36,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180996422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:36,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:36,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 19:10:36,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893144330] [2022-07-13 19:10:36,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:36,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 19:10:36,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:36,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 19:10:36,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:10:36,277 INFO L87 Difference]: Start difference. First operand 1568 states and 2209 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:38,212 INFO L93 Difference]: Finished difference Result 2873 states and 4055 transitions. [2022-07-13 19:10:38,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 19:10:38,213 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-13 19:10:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:38,220 INFO L225 Difference]: With dead ends: 2873 [2022-07-13 19:10:38,220 INFO L226 Difference]: Without dead ends: 2685 [2022-07-13 19:10:38,221 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:38,222 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 4204 mSDsluCounter, 4275 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4204 SdHoareTripleChecker+Valid, 5141 SdHoareTripleChecker+Invalid, 4345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:38,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4204 Valid, 5141 Invalid, 4345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:10:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-07-13 19:10:38,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1568. [2022-07-13 19:10:38,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4340480831708902) internal successors, (2207), 1567 states have internal predecessors, (2207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:38,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2207 transitions. [2022-07-13 19:10:38,316 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2207 transitions. Word has length 108 [2022-07-13 19:10:38,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:38,316 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2207 transitions. [2022-07-13 19:10:38,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:38,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2207 transitions. [2022-07-13 19:10:38,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 19:10:38,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:38,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:38,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 19:10:38,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:38,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:38,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2067995745, now seen corresponding path program 1 times [2022-07-13 19:10:38,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:38,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124699963] [2022-07-13 19:10:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:38,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:38,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:38,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124699963] [2022-07-13 19:10:38,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124699963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:38,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:38,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:10:38,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298884961] [2022-07-13 19:10:38,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:38,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:10:38,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:38,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:10:38,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:10:38,457 INFO L87 Difference]: Start difference. First operand 1568 states and 2207 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:39,800 INFO L93 Difference]: Finished difference Result 2720 states and 3694 transitions. [2022-07-13 19:10:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 19:10:39,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-13 19:10:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:39,808 INFO L225 Difference]: With dead ends: 2720 [2022-07-13 19:10:39,808 INFO L226 Difference]: Without dead ends: 2051 [2022-07-13 19:10:39,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-13 19:10:39,810 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 6427 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6427 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:39,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6427 Valid, 1666 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:39,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2022-07-13 19:10:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 1568. [2022-07-13 19:10:39,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.433398310591293) internal successors, (2206), 1567 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:39,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2206 transitions. [2022-07-13 19:10:39,952 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2206 transitions. Word has length 108 [2022-07-13 19:10:39,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:39,952 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2206 transitions. [2022-07-13 19:10:39,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:39,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2206 transitions. [2022-07-13 19:10:39,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 19:10:39,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:39,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:39,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 19:10:39,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:39,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:39,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1618229889, now seen corresponding path program 1 times [2022-07-13 19:10:39,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:39,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933188239] [2022-07-13 19:10:39,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:39,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:40,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:40,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:40,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933188239] [2022-07-13 19:10:40,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933188239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:40,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:40,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:40,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326357737] [2022-07-13 19:10:40,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:40,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:40,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:40,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:40,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:40,069 INFO L87 Difference]: Start difference. First operand 1568 states and 2206 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:41,634 INFO L93 Difference]: Finished difference Result 2985 states and 4229 transitions. [2022-07-13 19:10:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:41,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-13 19:10:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:41,641 INFO L225 Difference]: With dead ends: 2985 [2022-07-13 19:10:41,641 INFO L226 Difference]: Without dead ends: 2765 [2022-07-13 19:10:41,643 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:41,643 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 4356 mSDsluCounter, 2928 mSDsCounter, 0 mSdLazyCounter, 3112 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4356 SdHoareTripleChecker+Valid, 3822 SdHoareTripleChecker+Invalid, 3151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:41,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4356 Valid, 3822 Invalid, 3151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3112 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 19:10:41,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-07-13 19:10:41,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 1568. [2022-07-13 19:10:41,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.432748538011696) internal successors, (2205), 1567 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:41,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2205 transitions. [2022-07-13 19:10:41,749 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2205 transitions. Word has length 108 [2022-07-13 19:10:41,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:41,749 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2205 transitions. [2022-07-13 19:10:41,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:41,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2205 transitions. [2022-07-13 19:10:41,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 19:10:41,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:41,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:41,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 19:10:41,752 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:41,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash 180174419, now seen corresponding path program 1 times [2022-07-13 19:10:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:41,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801988558] [2022-07-13 19:10:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:41,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:41,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:41,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801988558] [2022-07-13 19:10:41,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801988558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:41,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:41,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:41,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853808264] [2022-07-13 19:10:41,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:41,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:41,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:41,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:41,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:41,914 INFO L87 Difference]: Start difference. First operand 1568 states and 2205 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:44,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:44,174 INFO L93 Difference]: Finished difference Result 2976 states and 4179 transitions. [2022-07-13 19:10:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 19:10:44,175 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-13 19:10:44,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:44,182 INFO L225 Difference]: With dead ends: 2976 [2022-07-13 19:10:44,182 INFO L226 Difference]: Without dead ends: 2794 [2022-07-13 19:10:44,183 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:44,184 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 4321 mSDsluCounter, 5068 mSDsCounter, 0 mSdLazyCounter, 5177 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4321 SdHoareTripleChecker+Valid, 5944 SdHoareTripleChecker+Invalid, 5291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 5177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:44,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4321 Valid, 5944 Invalid, 5291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 5177 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-13 19:10:44,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-07-13 19:10:44,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 1587. [2022-07-13 19:10:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.4332477535301669) internal successors, (2233), 1586 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2233 transitions. [2022-07-13 19:10:44,319 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2233 transitions. Word has length 108 [2022-07-13 19:10:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:44,319 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2233 transitions. [2022-07-13 19:10:44,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2233 transitions. [2022-07-13 19:10:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 19:10:44,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:44,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:44,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 19:10:44,322 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:44,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:44,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1822156941, now seen corresponding path program 1 times [2022-07-13 19:10:44,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:44,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099667565] [2022-07-13 19:10:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:44,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:44,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:44,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:44,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099667565] [2022-07-13 19:10:44,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099667565] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:44,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:44,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:44,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658894094] [2022-07-13 19:10:44,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:44,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:44,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:44,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:44,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:44,459 INFO L87 Difference]: Start difference. First operand 1587 states and 2233 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:46,341 INFO L93 Difference]: Finished difference Result 3166 states and 4459 transitions. [2022-07-13 19:10:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 19:10:46,342 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-13 19:10:46,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:46,350 INFO L225 Difference]: With dead ends: 3166 [2022-07-13 19:10:46,351 INFO L226 Difference]: Without dead ends: 2932 [2022-07-13 19:10:46,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-13 19:10:46,354 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 11285 mSDsluCounter, 3821 mSDsCounter, 0 mSdLazyCounter, 3836 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11285 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 3942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:46,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11285 Valid, 4714 Invalid, 3942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3836 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:10:46,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2022-07-13 19:10:46,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1591. [2022-07-13 19:10:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1562 states have (on average 1.4321382842509602) internal successors, (2237), 1590 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:46,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 2237 transitions. [2022-07-13 19:10:46,470 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 2237 transitions. Word has length 108 [2022-07-13 19:10:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:46,470 INFO L495 AbstractCegarLoop]: Abstraction has 1591 states and 2237 transitions. [2022-07-13 19:10:46,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:46,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 2237 transitions. [2022-07-13 19:10:46,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 19:10:46,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:46,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:46,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 19:10:46,474 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:46,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:46,474 INFO L85 PathProgramCache]: Analyzing trace with hash 57351997, now seen corresponding path program 1 times [2022-07-13 19:10:46,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:46,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909235140] [2022-07-13 19:10:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:46,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:46,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:46,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909235140] [2022-07-13 19:10:46,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909235140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:46,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:46,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:46,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519174196] [2022-07-13 19:10:46,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:46,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:46,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:46,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:46,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:46,633 INFO L87 Difference]: Start difference. First operand 1591 states and 2237 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:48,765 INFO L93 Difference]: Finished difference Result 3017 states and 4259 transitions. [2022-07-13 19:10:48,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 19:10:48,765 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-13 19:10:48,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:48,770 INFO L225 Difference]: With dead ends: 3017 [2022-07-13 19:10:48,770 INFO L226 Difference]: Without dead ends: 2822 [2022-07-13 19:10:48,770 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:48,771 INFO L413 NwaCegarLoop]: 983 mSDtfsCounter, 7653 mSDsluCounter, 4193 mSDsCounter, 0 mSdLazyCounter, 4429 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7653 SdHoareTripleChecker+Valid, 5176 SdHoareTripleChecker+Invalid, 4544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 4429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:48,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7653 Valid, 5176 Invalid, 4544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 4429 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 19:10:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2022-07-13 19:10:48,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 1595. [2022-07-13 19:10:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1566 states have (on average 1.4323116219667944) internal successors, (2243), 1594 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:48,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2243 transitions. [2022-07-13 19:10:48,895 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2243 transitions. Word has length 108 [2022-07-13 19:10:48,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:48,896 INFO L495 AbstractCegarLoop]: Abstraction has 1595 states and 2243 transitions. [2022-07-13 19:10:48,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:48,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2243 transitions. [2022-07-13 19:10:48,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:10:48,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:48,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:48,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 19:10:48,898 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:48,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:48,898 INFO L85 PathProgramCache]: Analyzing trace with hash -860352434, now seen corresponding path program 1 times [2022-07-13 19:10:48,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:48,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316013661] [2022-07-13 19:10:48,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:48,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:49,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:49,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:49,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316013661] [2022-07-13 19:10:49,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316013661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:49,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:49,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:49,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812261527] [2022-07-13 19:10:49,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:49,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:49,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:49,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:49,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:49,019 INFO L87 Difference]: Start difference. First operand 1595 states and 2243 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:50,717 INFO L93 Difference]: Finished difference Result 2906 states and 4091 transitions. [2022-07-13 19:10:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:10:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:50,721 INFO L225 Difference]: With dead ends: 2906 [2022-07-13 19:10:50,721 INFO L226 Difference]: Without dead ends: 2724 [2022-07-13 19:10:50,722 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:50,723 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 6225 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 3116 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6225 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 3116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:50,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6225 Valid, 3707 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 3116 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:10:50,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2022-07-13 19:10:50,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 1581. [2022-07-13 19:10:50,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1552 states have (on average 1.431701030927835) internal successors, (2222), 1580 states have internal predecessors, (2222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:50,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2222 transitions. [2022-07-13 19:10:50,852 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2222 transitions. Word has length 110 [2022-07-13 19:10:50,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:50,852 INFO L495 AbstractCegarLoop]: Abstraction has 1581 states and 2222 transitions. [2022-07-13 19:10:50,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:50,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2222 transitions. [2022-07-13 19:10:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:10:50,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:50,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:50,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 19:10:50,854 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:50,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:50,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1432283502, now seen corresponding path program 1 times [2022-07-13 19:10:50,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:50,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855480595] [2022-07-13 19:10:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:50,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:50,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:50,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855480595] [2022-07-13 19:10:50,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855480595] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:50,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:50,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:50,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095579906] [2022-07-13 19:10:50,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:50,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:50,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:50,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:50,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:50,968 INFO L87 Difference]: Start difference. First operand 1581 states and 2222 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:52,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:52,518 INFO L93 Difference]: Finished difference Result 3020 states and 4268 transitions. [2022-07-13 19:10:52,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:52,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:10:52,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:52,523 INFO L225 Difference]: With dead ends: 3020 [2022-07-13 19:10:52,523 INFO L226 Difference]: Without dead ends: 2786 [2022-07-13 19:10:52,524 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:52,524 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 7100 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2904 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7100 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 2967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:52,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7100 Valid, 3625 Invalid, 2967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2904 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-13 19:10:52,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-07-13 19:10:52,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1581. [2022-07-13 19:10:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1552 states have (on average 1.4310567010309279) internal successors, (2221), 1580 states have internal predecessors, (2221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2221 transitions. [2022-07-13 19:10:52,672 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2221 transitions. Word has length 110 [2022-07-13 19:10:52,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:52,673 INFO L495 AbstractCegarLoop]: Abstraction has 1581 states and 2221 transitions. [2022-07-13 19:10:52,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2221 transitions. [2022-07-13 19:10:52,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:10:52,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:52,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:52,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 19:10:52,675 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:52,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:52,675 INFO L85 PathProgramCache]: Analyzing trace with hash -983174856, now seen corresponding path program 1 times [2022-07-13 19:10:52,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:52,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189715471] [2022-07-13 19:10:52,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:52,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:52,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:52,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:52,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189715471] [2022-07-13 19:10:52,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189715471] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:52,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:52,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:52,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822042988] [2022-07-13 19:10:52,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:52,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:52,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:52,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:52,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:52,761 INFO L87 Difference]: Start difference. First operand 1581 states and 2221 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:54,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:54,739 INFO L93 Difference]: Finished difference Result 2949 states and 4169 transitions. [2022-07-13 19:10:54,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:54,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:10:54,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:54,744 INFO L225 Difference]: With dead ends: 2949 [2022-07-13 19:10:54,744 INFO L226 Difference]: Without dead ends: 2754 [2022-07-13 19:10:54,745 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:54,745 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 4687 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 3541 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4687 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 3623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:54,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4687 Valid, 4337 Invalid, 3623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3541 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:10:54,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-07-13 19:10:54,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1568. [2022-07-13 19:10:54,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4307992202729045) internal successors, (2202), 1567 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:54,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2202 transitions. [2022-07-13 19:10:54,891 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2202 transitions. Word has length 110 [2022-07-13 19:10:54,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:54,892 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2202 transitions. [2022-07-13 19:10:54,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:54,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2202 transitions. [2022-07-13 19:10:54,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:10:54,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:54,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:54,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 19:10:54,894 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:54,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:54,895 INFO L85 PathProgramCache]: Analyzing trace with hash 237293966, now seen corresponding path program 1 times [2022-07-13 19:10:54,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:54,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391660308] [2022-07-13 19:10:54,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:54,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:55,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391660308] [2022-07-13 19:10:55,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391660308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:55,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:55,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:55,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511154796] [2022-07-13 19:10:55,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:55,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:55,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:55,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:55,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:55,009 INFO L87 Difference]: Start difference. First operand 1568 states and 2202 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:56,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:56,784 INFO L93 Difference]: Finished difference Result 2978 states and 4216 transitions. [2022-07-13 19:10:56,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:56,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:10:56,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:56,789 INFO L225 Difference]: With dead ends: 2978 [2022-07-13 19:10:56,789 INFO L226 Difference]: Without dead ends: 2765 [2022-07-13 19:10:56,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 19:10:56,790 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 8736 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8736 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 3158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:56,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8736 Valid, 3785 Invalid, 3158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:10:56,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-07-13 19:10:56,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 1568. [2022-07-13 19:10:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4301494476933074) internal successors, (2201), 1567 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2201 transitions. [2022-07-13 19:10:56,943 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2201 transitions. Word has length 110 [2022-07-13 19:10:56,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:56,943 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2201 transitions. [2022-07-13 19:10:56,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:56,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2201 transitions. [2022-07-13 19:10:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:10:56,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:56,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:56,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 19:10:56,945 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:56,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2054601275, now seen corresponding path program 1 times [2022-07-13 19:10:56,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:56,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014770002] [2022-07-13 19:10:56,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:56,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:57,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:57,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014770002] [2022-07-13 19:10:57,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014770002] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:57,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:57,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:57,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394315739] [2022-07-13 19:10:57,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:57,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:57,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:57,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:57,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:57,044 INFO L87 Difference]: Start difference. First operand 1568 states and 2201 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:58,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:58,821 INFO L93 Difference]: Finished difference Result 3065 states and 4349 transitions. [2022-07-13 19:10:58,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:58,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:10:58,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:58,826 INFO L225 Difference]: With dead ends: 3065 [2022-07-13 19:10:58,826 INFO L226 Difference]: Without dead ends: 2797 [2022-07-13 19:10:58,827 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:10:58,827 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 8958 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 3008 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8958 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:58,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8958 Valid, 3743 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3008 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 19:10:58,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-07-13 19:10:58,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1568. [2022-07-13 19:10:58,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4294996751137101) internal successors, (2200), 1567 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:58,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2200 transitions. [2022-07-13 19:10:58,991 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2200 transitions. Word has length 110 [2022-07-13 19:10:58,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:58,992 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2200 transitions. [2022-07-13 19:10:58,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:58,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2200 transitions. [2022-07-13 19:10:58,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:10:58,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:58,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:58,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 19:10:58,996 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:10:58,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:58,997 INFO L85 PathProgramCache]: Analyzing trace with hash 329024581, now seen corresponding path program 1 times [2022-07-13 19:10:58,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:58,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314963628] [2022-07-13 19:10:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:59,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:59,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314963628] [2022-07-13 19:10:59,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314963628] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:59,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:59,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:59,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181562270] [2022-07-13 19:10:59,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:59,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:59,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:59,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:59,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:59,131 INFO L87 Difference]: Start difference. First operand 1568 states and 2200 transitions. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:01,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:01,573 INFO L93 Difference]: Finished difference Result 3029 states and 4266 transitions. [2022-07-13 19:11:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 19:11:01,585 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:11:01,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:01,588 INFO L225 Difference]: With dead ends: 3029 [2022-07-13 19:11:01,588 INFO L226 Difference]: Without dead ends: 2834 [2022-07-13 19:11:01,589 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:01,591 INFO L413 NwaCegarLoop]: 1015 mSDtfsCounter, 7731 mSDsluCounter, 5346 mSDsCounter, 0 mSdLazyCounter, 5307 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7731 SdHoareTripleChecker+Valid, 6361 SdHoareTripleChecker+Invalid, 5420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 5307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:01,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7731 Valid, 6361 Invalid, 5420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 5307 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 19:11:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-07-13 19:11:01,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 1581. [2022-07-13 19:11:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1552 states have (on average 1.4297680412371134) internal successors, (2219), 1580 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2219 transitions. [2022-07-13 19:11:01,763 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2219 transitions. Word has length 110 [2022-07-13 19:11:01,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:01,763 INFO L495 AbstractCegarLoop]: Abstraction has 1581 states and 2219 transitions. [2022-07-13 19:11:01,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2219 transitions. [2022-07-13 19:11:01,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:11:01,765 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:01,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:01,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 19:11:01,765 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:01,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1478083339, now seen corresponding path program 1 times [2022-07-13 19:11:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:01,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913636487] [2022-07-13 19:11:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:01,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:01,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:01,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913636487] [2022-07-13 19:11:01,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913636487] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:01,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:01,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:11:01,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749185306] [2022-07-13 19:11:01,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:01,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:01,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:01,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:01,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:01,906 INFO L87 Difference]: Start difference. First operand 1581 states and 2219 transitions. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:04,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:04,128 INFO L93 Difference]: Finished difference Result 2955 states and 4145 transitions. [2022-07-13 19:11:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 19:11:04,128 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:11:04,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:04,138 INFO L225 Difference]: With dead ends: 2955 [2022-07-13 19:11:04,138 INFO L226 Difference]: Without dead ends: 2777 [2022-07-13 19:11:04,139 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:04,140 INFO L413 NwaCegarLoop]: 892 mSDtfsCounter, 4413 mSDsluCounter, 4291 mSDsCounter, 0 mSdLazyCounter, 4463 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4413 SdHoareTripleChecker+Valid, 5183 SdHoareTripleChecker+Invalid, 4583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 4463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:04,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4413 Valid, 5183 Invalid, 4583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 4463 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:11:04,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-07-13 19:11:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1585. [2022-07-13 19:11:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1556 states have (on average 1.429948586118252) internal successors, (2225), 1584 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2225 transitions. [2022-07-13 19:11:04,321 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2225 transitions. Word has length 110 [2022-07-13 19:11:04,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:04,321 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 2225 transitions. [2022-07-13 19:11:04,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:04,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2225 transitions. [2022-07-13 19:11:04,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:11:04,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:04,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:04,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 19:11:04,323 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:04,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1009532650, now seen corresponding path program 1 times [2022-07-13 19:11:04,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:04,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733091357] [2022-07-13 19:11:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:04,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:04,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:04,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733091357] [2022-07-13 19:11:04,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733091357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:04,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:04,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:11:04,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860553497] [2022-07-13 19:11:04,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:04,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:04,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:04,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:04,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:04,445 INFO L87 Difference]: Start difference. First operand 1585 states and 2225 transitions. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:06,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:06,798 INFO L93 Difference]: Finished difference Result 3003 states and 4237 transitions. [2022-07-13 19:11:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 19:11:06,799 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:11:06,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:06,803 INFO L225 Difference]: With dead ends: 3003 [2022-07-13 19:11:06,803 INFO L226 Difference]: Without dead ends: 2813 [2022-07-13 19:11:06,804 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:06,804 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 7144 mSDsluCounter, 4694 mSDsCounter, 0 mSdLazyCounter, 4904 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7144 SdHoareTripleChecker+Valid, 5804 SdHoareTripleChecker+Invalid, 5012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 4904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:06,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7144 Valid, 5804 Invalid, 5012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 4904 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 19:11:06,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2022-07-13 19:11:06,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 1587. [2022-07-13 19:11:07,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.4293966623876766) internal successors, (2227), 1586 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:07,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2227 transitions. [2022-07-13 19:11:07,002 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2227 transitions. Word has length 110 [2022-07-13 19:11:07,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:07,003 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2227 transitions. [2022-07-13 19:11:07,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2227 transitions. [2022-07-13 19:11:07,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:11:07,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:07,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:07,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 19:11:07,005 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:07,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:07,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1184588847, now seen corresponding path program 1 times [2022-07-13 19:11:07,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:07,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832289598] [2022-07-13 19:11:07,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:07,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:07,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:07,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832289598] [2022-07-13 19:11:07,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832289598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:07,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:07,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:11:07,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542692890] [2022-07-13 19:11:07,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:07,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:07,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:07,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:07,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:07,158 INFO L87 Difference]: Start difference. First operand 1587 states and 2227 transitions. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:09,545 INFO L93 Difference]: Finished difference Result 3067 states and 4308 transitions. [2022-07-13 19:11:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 19:11:09,545 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:11:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:09,548 INFO L225 Difference]: With dead ends: 3067 [2022-07-13 19:11:09,548 INFO L226 Difference]: Without dead ends: 2863 [2022-07-13 19:11:09,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-13 19:11:09,549 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 7511 mSDsluCounter, 4753 mSDsCounter, 0 mSdLazyCounter, 4919 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7511 SdHoareTripleChecker+Valid, 5921 SdHoareTripleChecker+Invalid, 5035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 4919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:09,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7511 Valid, 5921 Invalid, 5035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 4919 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 19:11:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2022-07-13 19:11:09,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1597. [2022-07-13 19:11:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1568 states have (on average 1.4279336734693877) internal successors, (2239), 1596 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2239 transitions. [2022-07-13 19:11:09,745 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2239 transitions. Word has length 110 [2022-07-13 19:11:09,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:09,745 INFO L495 AbstractCegarLoop]: Abstraction has 1597 states and 2239 transitions. [2022-07-13 19:11:09,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:09,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2239 transitions. [2022-07-13 19:11:09,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:11:09,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:09,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:09,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 19:11:09,747 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:09,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:09,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1593434075, now seen corresponding path program 1 times [2022-07-13 19:11:09,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:09,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043216593] [2022-07-13 19:11:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:09,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:09,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:09,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043216593] [2022-07-13 19:11:09,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043216593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:09,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:09,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:09,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652569452] [2022-07-13 19:11:09,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:09,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:09,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:09,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:09,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:09,888 INFO L87 Difference]: Start difference. First operand 1597 states and 2239 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:11,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:11,673 INFO L93 Difference]: Finished difference Result 2397 states and 3400 transitions. [2022-07-13 19:11:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 19:11:11,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:11:11,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:11,676 INFO L225 Difference]: With dead ends: 2397 [2022-07-13 19:11:11,676 INFO L226 Difference]: Without dead ends: 2005 [2022-07-13 19:11:11,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-13 19:11:11,677 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 4160 mSDsluCounter, 3592 mSDsCounter, 0 mSdLazyCounter, 3529 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4160 SdHoareTripleChecker+Valid, 4473 SdHoareTripleChecker+Invalid, 3551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:11,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4160 Valid, 4473 Invalid, 3551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3529 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:11:11,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2022-07-13 19:11:11,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1568. [2022-07-13 19:11:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.428849902534113) internal successors, (2199), 1567 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2199 transitions. [2022-07-13 19:11:11,861 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2199 transitions. Word has length 110 [2022-07-13 19:11:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:11,861 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2199 transitions. [2022-07-13 19:11:11,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2199 transitions. [2022-07-13 19:11:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:11:11,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:11,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:11,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-13 19:11:11,864 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:11,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:11,864 INFO L85 PathProgramCache]: Analyzing trace with hash 8802059, now seen corresponding path program 1 times [2022-07-13 19:11:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:11,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259988470] [2022-07-13 19:11:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:11,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:11,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:11,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259988470] [2022-07-13 19:11:11,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259988470] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:11,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:11,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:11,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395936643] [2022-07-13 19:11:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:11,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:11,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:11,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:11,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:11,964 INFO L87 Difference]: Start difference. First operand 1568 states and 2199 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:13,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:13,809 INFO L93 Difference]: Finished difference Result 2881 states and 4050 transitions. [2022-07-13 19:11:13,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:13,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:11:13,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:13,813 INFO L225 Difference]: With dead ends: 2881 [2022-07-13 19:11:13,813 INFO L226 Difference]: Without dead ends: 2693 [2022-07-13 19:11:13,826 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:13,826 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 6126 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 3158 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6126 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 3158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:13,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6126 Valid, 3785 Invalid, 3347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 3158 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:11:13,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-07-13 19:11:14,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1568. [2022-07-13 19:11:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4275503573749189) internal successors, (2197), 1567 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:14,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2197 transitions. [2022-07-13 19:11:14,034 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2197 transitions. Word has length 110 [2022-07-13 19:11:14,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:14,034 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2197 transitions. [2022-07-13 19:11:14,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2197 transitions. [2022-07-13 19:11:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 19:11:14,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:14,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:14,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-13 19:11:14,036 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1694810938, now seen corresponding path program 1 times [2022-07-13 19:11:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:14,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699938674] [2022-07-13 19:11:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:14,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:14,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:14,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699938674] [2022-07-13 19:11:14,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699938674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:14,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:14,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:14,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099949012] [2022-07-13 19:11:14,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:14,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:14,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:14,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:14,127 INFO L87 Difference]: Start difference. First operand 1568 states and 2197 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:15,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:15,623 INFO L93 Difference]: Finished difference Result 2661 states and 3767 transitions. [2022-07-13 19:11:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 19:11:15,624 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-07-13 19:11:15,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:15,626 INFO L225 Difference]: With dead ends: 2661 [2022-07-13 19:11:15,626 INFO L226 Difference]: Without dead ends: 2005 [2022-07-13 19:11:15,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:11:15,627 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 5203 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 3052 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:15,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 3886 Invalid, 3079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3052 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:11:15,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2022-07-13 19:11:15,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1568. [2022-07-13 19:11:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4262508122157245) internal successors, (2195), 1567 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2195 transitions. [2022-07-13 19:11:15,834 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2195 transitions. Word has length 110 [2022-07-13 19:11:15,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:15,835 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2195 transitions. [2022-07-13 19:11:15,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2195 transitions. [2022-07-13 19:11:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:15,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:15,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:15,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-13 19:11:15,837 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:15,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:15,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1110098816, now seen corresponding path program 1 times [2022-07-13 19:11:15,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:15,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963866076] [2022-07-13 19:11:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:15,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:15,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:15,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:15,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963866076] [2022-07-13 19:11:15,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963866076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:15,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:15,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:15,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757238392] [2022-07-13 19:11:15,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:15,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:15,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:15,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:15,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:15,941 INFO L87 Difference]: Start difference. First operand 1568 states and 2195 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:17,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:17,848 INFO L93 Difference]: Finished difference Result 2985 states and 4215 transitions. [2022-07-13 19:11:17,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:17,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:17,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:17,852 INFO L225 Difference]: With dead ends: 2985 [2022-07-13 19:11:17,852 INFO L226 Difference]: Without dead ends: 2765 [2022-07-13 19:11:17,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 19:11:17,853 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 8581 mSDsluCounter, 3065 mSDsCounter, 0 mSdLazyCounter, 3203 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8581 SdHoareTripleChecker+Valid, 3982 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:17,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8581 Valid, 3982 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3203 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:11:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-07-13 19:11:18,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 1568. [2022-07-13 19:11:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4256010396361274) internal successors, (2194), 1567 states have internal predecessors, (2194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:18,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2194 transitions. [2022-07-13 19:11:18,068 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2194 transitions. Word has length 112 [2022-07-13 19:11:18,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:18,068 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2194 transitions. [2022-07-13 19:11:18,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:18,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2194 transitions. [2022-07-13 19:11:18,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:18,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:18,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:18,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-13 19:11:18,070 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:18,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:18,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1790606885, now seen corresponding path program 1 times [2022-07-13 19:11:18,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:18,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096550785] [2022-07-13 19:11:18,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:18,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:18,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:18,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096550785] [2022-07-13 19:11:18,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096550785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:18,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:18,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:18,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636027139] [2022-07-13 19:11:18,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:18,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:18,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:18,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:18,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:18,171 INFO L87 Difference]: Start difference. First operand 1568 states and 2194 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:20,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:20,554 INFO L93 Difference]: Finished difference Result 2931 states and 4135 transitions. [2022-07-13 19:11:20,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:20,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:20,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:20,557 INFO L225 Difference]: With dead ends: 2931 [2022-07-13 19:11:20,557 INFO L226 Difference]: Without dead ends: 2741 [2022-07-13 19:11:20,557 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:20,558 INFO L413 NwaCegarLoop]: 1140 mSDtfsCounter, 6502 mSDsluCounter, 4703 mSDsCounter, 0 mSdLazyCounter, 4711 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6502 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 4808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:20,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6502 Valid, 5843 Invalid, 4808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4711 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 19:11:20,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-07-13 19:11:20,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1568. [2022-07-13 19:11:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4249512670565303) internal successors, (2193), 1567 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2193 transitions. [2022-07-13 19:11:20,763 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2193 transitions. Word has length 112 [2022-07-13 19:11:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:20,764 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2193 transitions. [2022-07-13 19:11:20,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:20,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2193 transitions. [2022-07-13 19:11:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:20,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:20,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:20,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-13 19:11:20,766 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:20,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:20,766 INFO L85 PathProgramCache]: Analyzing trace with hash -403514612, now seen corresponding path program 1 times [2022-07-13 19:11:20,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:20,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307635018] [2022-07-13 19:11:20,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:20,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:20,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:20,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307635018] [2022-07-13 19:11:20,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307635018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:20,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:20,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230569575] [2022-07-13 19:11:20,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:20,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:20,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:20,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:20,850 INFO L87 Difference]: Start difference. First operand 1568 states and 2193 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:22,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:22,956 INFO L93 Difference]: Finished difference Result 3086 states and 4359 transitions. [2022-07-13 19:11:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:22,957 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:22,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:22,960 INFO L225 Difference]: With dead ends: 3086 [2022-07-13 19:11:22,960 INFO L226 Difference]: Without dead ends: 2797 [2022-07-13 19:11:22,961 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:22,962 INFO L413 NwaCegarLoop]: 1351 mSDtfsCounter, 5171 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 4178 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5171 SdHoareTripleChecker+Valid, 5325 SdHoareTripleChecker+Invalid, 4208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:22,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5171 Valid, 5325 Invalid, 4208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 4178 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:11:22,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-07-13 19:11:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1568. [2022-07-13 19:11:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.424301494476933) internal successors, (2192), 1567 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2192 transitions. [2022-07-13 19:11:23,192 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2192 transitions. Word has length 112 [2022-07-13 19:11:23,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:23,192 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2192 transitions. [2022-07-13 19:11:23,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2192 transitions. [2022-07-13 19:11:23,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:23,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:23,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:23,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-13 19:11:23,194 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:23,194 INFO L85 PathProgramCache]: Analyzing trace with hash -582562824, now seen corresponding path program 1 times [2022-07-13 19:11:23,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:23,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666372107] [2022-07-13 19:11:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:23,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:23,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:23,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666372107] [2022-07-13 19:11:23,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666372107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:23,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:23,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:23,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968780928] [2022-07-13 19:11:23,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:23,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:23,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:23,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:23,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:23,276 INFO L87 Difference]: Start difference. First operand 1568 states and 2192 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:25,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:25,386 INFO L93 Difference]: Finished difference Result 2875 states and 4032 transitions. [2022-07-13 19:11:25,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:25,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:25,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:25,389 INFO L225 Difference]: With dead ends: 2875 [2022-07-13 19:11:25,389 INFO L226 Difference]: Without dead ends: 2693 [2022-07-13 19:11:25,390 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:25,390 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 6774 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 3192 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6774 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:25,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6774 Valid, 3849 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 3192 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:11:25,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-07-13 19:11:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1568. [2022-07-13 19:11:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.423651721897336) internal successors, (2191), 1567 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2191 transitions. [2022-07-13 19:11:25,606 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2191 transitions. Word has length 112 [2022-07-13 19:11:25,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:25,607 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2191 transitions. [2022-07-13 19:11:25,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:25,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2191 transitions. [2022-07-13 19:11:25,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:25,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:25,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:25,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-13 19:11:25,609 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:25,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:25,609 INFO L85 PathProgramCache]: Analyzing trace with hash 977250997, now seen corresponding path program 1 times [2022-07-13 19:11:25,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:25,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826996379] [2022-07-13 19:11:25,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:25,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:25,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:25,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826996379] [2022-07-13 19:11:25,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826996379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:25,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:25,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:25,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956709589] [2022-07-13 19:11:25,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:25,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:25,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:25,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:25,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:25,704 INFO L87 Difference]: Start difference. First operand 1568 states and 2191 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:28,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:28,110 INFO L93 Difference]: Finished difference Result 2931 states and 4131 transitions. [2022-07-13 19:11:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:28,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:28,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:28,113 INFO L225 Difference]: With dead ends: 2931 [2022-07-13 19:11:28,113 INFO L226 Difference]: Without dead ends: 2741 [2022-07-13 19:11:28,114 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:28,114 INFO L413 NwaCegarLoop]: 1144 mSDtfsCounter, 6485 mSDsluCounter, 4716 mSDsCounter, 0 mSdLazyCounter, 4692 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6485 SdHoareTripleChecker+Valid, 5860 SdHoareTripleChecker+Invalid, 4789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:28,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6485 Valid, 5860 Invalid, 4789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4692 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 19:11:28,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-07-13 19:11:28,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1568. [2022-07-13 19:11:28,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4230019493177388) internal successors, (2190), 1567 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2190 transitions. [2022-07-13 19:11:28,353 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2190 transitions. Word has length 112 [2022-07-13 19:11:28,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:28,353 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2190 transitions. [2022-07-13 19:11:28,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:28,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2190 transitions. [2022-07-13 19:11:28,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:28,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:28,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:28,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-13 19:11:28,355 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:28,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:28,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1047979927, now seen corresponding path program 1 times [2022-07-13 19:11:28,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:28,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177523118] [2022-07-13 19:11:28,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:28,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:28,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:28,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177523118] [2022-07-13 19:11:28,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177523118] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:28,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:28,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:28,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117482121] [2022-07-13 19:11:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:28,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:28,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:28,447 INFO L87 Difference]: Start difference. First operand 1568 states and 2190 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:30,543 INFO L93 Difference]: Finished difference Result 2931 states and 4130 transitions. [2022-07-13 19:11:30,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:30,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:30,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:30,546 INFO L225 Difference]: With dead ends: 2931 [2022-07-13 19:11:30,546 INFO L226 Difference]: Without dead ends: 2741 [2022-07-13 19:11:30,547 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:30,547 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 5423 mSDsluCounter, 3632 mSDsCounter, 0 mSdLazyCounter, 3888 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5423 SdHoareTripleChecker+Valid, 4790 SdHoareTripleChecker+Invalid, 3979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:30,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5423 Valid, 4790 Invalid, 3979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3888 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:11:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-07-13 19:11:30,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1568. [2022-07-13 19:11:30,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4223521767381417) internal successors, (2189), 1567 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2189 transitions. [2022-07-13 19:11:30,838 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2189 transitions. Word has length 112 [2022-07-13 19:11:30,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:30,839 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2189 transitions. [2022-07-13 19:11:30,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2189 transitions. [2022-07-13 19:11:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:30,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:30,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:30,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-13 19:11:30,841 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:30,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash -619395701, now seen corresponding path program 1 times [2022-07-13 19:11:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:30,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112991414] [2022-07-13 19:11:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:30,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:30,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:30,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112991414] [2022-07-13 19:11:30,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112991414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:30,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:30,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:30,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690511685] [2022-07-13 19:11:30,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:30,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:30,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:30,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:30,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:30,963 INFO L87 Difference]: Start difference. First operand 1568 states and 2189 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:33,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:33,769 INFO L93 Difference]: Finished difference Result 2929 states and 4126 transitions. [2022-07-13 19:11:33,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:33,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:33,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:33,773 INFO L225 Difference]: With dead ends: 2929 [2022-07-13 19:11:33,773 INFO L226 Difference]: Without dead ends: 2741 [2022-07-13 19:11:33,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:33,774 INFO L413 NwaCegarLoop]: 1080 mSDtfsCounter, 6632 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 4484 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6632 SdHoareTripleChecker+Valid, 5620 SdHoareTripleChecker+Invalid, 4583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 4484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:33,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6632 Valid, 5620 Invalid, 4583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 4484 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 19:11:33,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-07-13 19:11:34,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1568. [2022-07-13 19:11:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4217024041585444) internal successors, (2188), 1567 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2188 transitions. [2022-07-13 19:11:34,094 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2188 transitions. Word has length 112 [2022-07-13 19:11:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:34,094 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2188 transitions. [2022-07-13 19:11:34,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2188 transitions. [2022-07-13 19:11:34,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:34,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:34,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:34,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-13 19:11:34,097 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:34,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:34,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1076754052, now seen corresponding path program 1 times [2022-07-13 19:11:34,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:34,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767722245] [2022-07-13 19:11:34,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:34,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:34,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:34,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:34,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767722245] [2022-07-13 19:11:34,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767722245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:34,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:34,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:34,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100705523] [2022-07-13 19:11:34,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:34,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:34,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:34,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:34,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:34,208 INFO L87 Difference]: Start difference. First operand 1568 states and 2188 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:36,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:36,622 INFO L93 Difference]: Finished difference Result 2955 states and 4157 transitions. [2022-07-13 19:11:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:36,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:36,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:36,625 INFO L225 Difference]: With dead ends: 2955 [2022-07-13 19:11:36,625 INFO L226 Difference]: Without dead ends: 2741 [2022-07-13 19:11:36,626 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:36,627 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 4806 mSDsluCounter, 3416 mSDsCounter, 0 mSdLazyCounter, 3559 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4806 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 3642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:36,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4806 Valid, 4454 Invalid, 3642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3559 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:11:36,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-07-13 19:11:36,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1568. [2022-07-13 19:11:36,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4204028589993503) internal successors, (2186), 1567 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:36,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2186 transitions. [2022-07-13 19:11:36,946 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2186 transitions. Word has length 112 [2022-07-13 19:11:36,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:36,946 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2186 transitions. [2022-07-13 19:11:36,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:36,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2186 transitions. [2022-07-13 19:11:36,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:36,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:36,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:36,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-13 19:11:36,948 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:36,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:36,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2069154486, now seen corresponding path program 1 times [2022-07-13 19:11:36,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:36,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042620541] [2022-07-13 19:11:36,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:36,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:37,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:37,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:37,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042620541] [2022-07-13 19:11:37,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042620541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:37,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:37,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:37,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946252302] [2022-07-13 19:11:37,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:37,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:37,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:37,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:37,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:37,053 INFO L87 Difference]: Start difference. First operand 1568 states and 2186 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:39,188 INFO L93 Difference]: Finished difference Result 2879 states and 4033 transitions. [2022-07-13 19:11:39,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:39,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:39,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:39,192 INFO L225 Difference]: With dead ends: 2879 [2022-07-13 19:11:39,192 INFO L226 Difference]: Without dead ends: 2693 [2022-07-13 19:11:39,193 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:39,194 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 3878 mSDsluCounter, 3135 mSDsCounter, 0 mSdLazyCounter, 3391 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 3508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 3391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:39,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3878 Valid, 4102 Invalid, 3508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 3391 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:11:39,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-07-13 19:11:39,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1568. [2022-07-13 19:11:39,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4191033138401559) internal successors, (2184), 1567 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2184 transitions. [2022-07-13 19:11:39,461 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2184 transitions. Word has length 112 [2022-07-13 19:11:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:39,461 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2184 transitions. [2022-07-13 19:11:39,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2184 transitions. [2022-07-13 19:11:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:39,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:39,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:39,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-13 19:11:39,463 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:39,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:39,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1630269001, now seen corresponding path program 1 times [2022-07-13 19:11:39,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:39,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036193610] [2022-07-13 19:11:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:39,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:39,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:39,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036193610] [2022-07-13 19:11:39,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036193610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:39,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:39,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:39,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449904125] [2022-07-13 19:11:39,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:39,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:39,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:39,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:39,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:39,558 INFO L87 Difference]: Start difference. First operand 1568 states and 2184 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:41,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:41,809 INFO L93 Difference]: Finished difference Result 3169 states and 4464 transitions. [2022-07-13 19:11:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:41,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:41,813 INFO L225 Difference]: With dead ends: 3169 [2022-07-13 19:11:41,813 INFO L226 Difference]: Without dead ends: 2797 [2022-07-13 19:11:41,814 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:41,814 INFO L413 NwaCegarLoop]: 1231 mSDtfsCounter, 6910 mSDsluCounter, 3993 mSDsCounter, 0 mSdLazyCounter, 4000 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6910 SdHoareTripleChecker+Valid, 5224 SdHoareTripleChecker+Invalid, 4042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:41,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6910 Valid, 5224 Invalid, 4042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 4000 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:11:41,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-07-13 19:11:42,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1568. [2022-07-13 19:11:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4178037686809617) internal successors, (2182), 1567 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:42,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2182 transitions. [2022-07-13 19:11:42,080 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2182 transitions. Word has length 112 [2022-07-13 19:11:42,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:42,080 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2182 transitions. [2022-07-13 19:11:42,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:42,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2182 transitions. [2022-07-13 19:11:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:42,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:42,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:42,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-13 19:11:42,082 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:42,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:42,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1150193153, now seen corresponding path program 1 times [2022-07-13 19:11:42,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:42,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222146567] [2022-07-13 19:11:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:42,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:42,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:42,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222146567] [2022-07-13 19:11:42,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222146567] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:42,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:42,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:42,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751666817] [2022-07-13 19:11:42,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:42,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:42,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:42,173 INFO L87 Difference]: Start difference. First operand 1568 states and 2182 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:44,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:44,344 INFO L93 Difference]: Finished difference Result 3029 states and 4259 transitions. [2022-07-13 19:11:44,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:44,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:44,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:44,354 INFO L225 Difference]: With dead ends: 3029 [2022-07-13 19:11:44,354 INFO L226 Difference]: Without dead ends: 2765 [2022-07-13 19:11:44,355 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:44,355 INFO L413 NwaCegarLoop]: 1106 mSDtfsCounter, 7733 mSDsluCounter, 3605 mSDsCounter, 0 mSdLazyCounter, 3673 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7733 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 3746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 3673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:44,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7733 Valid, 4711 Invalid, 3746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 3673 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:11:44,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-07-13 19:11:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 1568. [2022-07-13 19:11:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4165042235217673) internal successors, (2180), 1567 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:44,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2180 transitions. [2022-07-13 19:11:44,619 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2180 transitions. Word has length 112 [2022-07-13 19:11:44,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:44,619 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2180 transitions. [2022-07-13 19:11:44,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:44,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2180 transitions. [2022-07-13 19:11:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:44,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:44,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:44,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-13 19:11:44,621 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:44,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:44,622 INFO L85 PathProgramCache]: Analyzing trace with hash -469685084, now seen corresponding path program 1 times [2022-07-13 19:11:44,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:44,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092528255] [2022-07-13 19:11:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:44,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:44,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:44,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092528255] [2022-07-13 19:11:44,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092528255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:44,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:44,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:44,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806998504] [2022-07-13 19:11:44,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:44,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:44,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:44,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:44,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:44,714 INFO L87 Difference]: Start difference. First operand 1568 states and 2180 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:47,137 INFO L93 Difference]: Finished difference Result 2951 states and 4148 transitions. [2022-07-13 19:11:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:47,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:47,140 INFO L225 Difference]: With dead ends: 2951 [2022-07-13 19:11:47,140 INFO L226 Difference]: Without dead ends: 2741 [2022-07-13 19:11:47,141 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:47,141 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 6483 mSDsluCounter, 4661 mSDsCounter, 0 mSdLazyCounter, 4615 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6483 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 4713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:47,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6483 Valid, 5786 Invalid, 4713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4615 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:11:47,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-07-13 19:11:47,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1568. [2022-07-13 19:11:47,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4152046783625731) internal successors, (2178), 1567 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:47,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2178 transitions. [2022-07-13 19:11:47,408 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2178 transitions. Word has length 112 [2022-07-13 19:11:47,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:47,408 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2178 transitions. [2022-07-13 19:11:47,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:47,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2178 transitions. [2022-07-13 19:11:47,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:47,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:47,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:47,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-13 19:11:47,410 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:47,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:47,411 INFO L85 PathProgramCache]: Analyzing trace with hash -79489975, now seen corresponding path program 1 times [2022-07-13 19:11:47,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:47,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328868070] [2022-07-13 19:11:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:47,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:47,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:47,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:47,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328868070] [2022-07-13 19:11:47,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328868070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:47,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:47,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:47,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641074379] [2022-07-13 19:11:47,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:47,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:47,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:47,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:47,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:47,499 INFO L87 Difference]: Start difference. First operand 1568 states and 2178 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:49,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:49,681 INFO L93 Difference]: Finished difference Result 3221 states and 4528 transitions. [2022-07-13 19:11:49,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:49,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:49,684 INFO L225 Difference]: With dead ends: 3221 [2022-07-13 19:11:49,684 INFO L226 Difference]: Without dead ends: 2797 [2022-07-13 19:11:49,684 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:49,685 INFO L413 NwaCegarLoop]: 1308 mSDtfsCounter, 5276 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 3952 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5276 SdHoareTripleChecker+Valid, 5137 SdHoareTripleChecker+Invalid, 3981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:49,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5276 Valid, 5137 Invalid, 3981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3952 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:11:49,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-07-13 19:11:49,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1568. [2022-07-13 19:11:49,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4139051332033787) internal successors, (2176), 1567 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2176 transitions. [2022-07-13 19:11:49,950 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2176 transitions. Word has length 112 [2022-07-13 19:11:49,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:49,951 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2176 transitions. [2022-07-13 19:11:49,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:49,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2176 transitions. [2022-07-13 19:11:49,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:49,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:49,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:49,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-13 19:11:49,953 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:49,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:49,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1562562040, now seen corresponding path program 1 times [2022-07-13 19:11:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:49,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886813626] [2022-07-13 19:11:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:49,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:50,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886813626] [2022-07-13 19:11:50,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886813626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:50,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:50,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:50,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064412372] [2022-07-13 19:11:50,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:50,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:50,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:50,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:50,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:50,047 INFO L87 Difference]: Start difference. First operand 1568 states and 2176 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:52,216 INFO L93 Difference]: Finished difference Result 2959 states and 4153 transitions. [2022-07-13 19:11:52,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:52,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:52,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:52,219 INFO L225 Difference]: With dead ends: 2959 [2022-07-13 19:11:52,219 INFO L226 Difference]: Without dead ends: 2741 [2022-07-13 19:11:52,219 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:52,220 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 3640 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 3836 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3640 SdHoareTripleChecker+Valid, 4773 SdHoareTripleChecker+Invalid, 3897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:52,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3640 Valid, 4773 Invalid, 3897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3836 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:11:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-07-13 19:11:52,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1568. [2022-07-13 19:11:52,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4126055880441846) internal successors, (2174), 1567 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:52,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2174 transitions. [2022-07-13 19:11:52,504 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2174 transitions. Word has length 112 [2022-07-13 19:11:52,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:52,504 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2174 transitions. [2022-07-13 19:11:52,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2174 transitions. [2022-07-13 19:11:52,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 19:11:52,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:52,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:52,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-13 19:11:52,506 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:52,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:52,507 INFO L85 PathProgramCache]: Analyzing trace with hash -725792126, now seen corresponding path program 1 times [2022-07-13 19:11:52,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:52,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858735846] [2022-07-13 19:11:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:52,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:52,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:52,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858735846] [2022-07-13 19:11:52,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858735846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:52,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:52,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:52,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898684990] [2022-07-13 19:11:52,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:52,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:52,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:52,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:52,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:52,582 INFO L87 Difference]: Start difference. First operand 1568 states and 2174 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:55,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:55,113 INFO L93 Difference]: Finished difference Result 3049 states and 4276 transitions. [2022-07-13 19:11:55,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:55,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-13 19:11:55,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:55,116 INFO L225 Difference]: With dead ends: 3049 [2022-07-13 19:11:55,116 INFO L226 Difference]: Without dead ends: 2765 [2022-07-13 19:11:55,117 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:55,117 INFO L413 NwaCegarLoop]: 1322 mSDtfsCounter, 4862 mSDsluCounter, 4211 mSDsCounter, 0 mSdLazyCounter, 4316 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 5533 SdHoareTripleChecker+Invalid, 4363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 4316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:55,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4862 Valid, 5533 Invalid, 4363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 4316 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:11:55,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-07-13 19:11:55,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 1568. [2022-07-13 19:11:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1539 states have (on average 1.4113060428849902) internal successors, (2172), 1567 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2172 transitions. [2022-07-13 19:11:55,398 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2172 transitions. Word has length 112 [2022-07-13 19:11:55,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:55,398 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2172 transitions. [2022-07-13 19:11:55,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:55,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2172 transitions. [2022-07-13 19:11:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:11:55,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:55,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:55,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-13 19:11:55,400 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:55,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:55,400 INFO L85 PathProgramCache]: Analyzing trace with hash -946629140, now seen corresponding path program 1 times [2022-07-13 19:11:55,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:55,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383457447] [2022-07-13 19:11:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:55,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:55,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:55,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383457447] [2022-07-13 19:11:55,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383457447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:55,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:55,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:11:55,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468556941] [2022-07-13 19:11:55,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:55,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:55,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:55,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:55,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:55,538 INFO L87 Difference]: Start difference. First operand 1568 states and 2172 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:59,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:59,557 INFO L93 Difference]: Finished difference Result 4147 states and 5870 transitions. [2022-07-13 19:11:59,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:11:59,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:11:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:59,561 INFO L225 Difference]: With dead ends: 4147 [2022-07-13 19:11:59,561 INFO L226 Difference]: Without dead ends: 3943 [2022-07-13 19:11:59,562 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:11:59,562 INFO L413 NwaCegarLoop]: 1317 mSDtfsCounter, 10249 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 4613 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10249 SdHoareTripleChecker+Valid, 5716 SdHoareTripleChecker+Invalid, 5453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 4613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:59,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10249 Valid, 5716 Invalid, 5453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 4613 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-13 19:11:59,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2022-07-13 19:11:59,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 1572. [2022-07-13 19:11:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1543 states have (on average 1.410239792611795) internal successors, (2176), 1571 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2176 transitions. [2022-07-13 19:11:59,892 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2176 transitions. Word has length 114 [2022-07-13 19:11:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:59,892 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 2176 transitions. [2022-07-13 19:11:59,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2176 transitions. [2022-07-13 19:11:59,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:11:59,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:59,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:59,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-13 19:11:59,894 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:11:59,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:59,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1355474368, now seen corresponding path program 1 times [2022-07-13 19:11:59,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:59,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431063602] [2022-07-13 19:11:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:59,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:59,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:59,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:59,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431063602] [2022-07-13 19:11:59,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431063602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:59,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:59,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:59,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882132228] [2022-07-13 19:11:59,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:59,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:59,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:59,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:59,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:59,985 INFO L87 Difference]: Start difference. First operand 1572 states and 2176 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:02,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:02,575 INFO L93 Difference]: Finished difference Result 2879 states and 4016 transitions. [2022-07-13 19:12:02,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:02,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:02,578 INFO L225 Difference]: With dead ends: 2879 [2022-07-13 19:12:02,578 INFO L226 Difference]: Without dead ends: 2697 [2022-07-13 19:12:02,579 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:02,579 INFO L413 NwaCegarLoop]: 1052 mSDtfsCounter, 6486 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 4379 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6486 SdHoareTripleChecker+Valid, 5396 SdHoareTripleChecker+Invalid, 4561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 4379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:02,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6486 Valid, 5396 Invalid, 4561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 4379 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:12:02,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2022-07-13 19:12:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1572. [2022-07-13 19:12:02,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1543 states have (on average 1.4095917044718083) internal successors, (2175), 1571 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2175 transitions. [2022-07-13 19:12:02,906 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2175 transitions. Word has length 114 [2022-07-13 19:12:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:02,907 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 2175 transitions. [2022-07-13 19:12:02,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2175 transitions. [2022-07-13 19:12:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:02,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:02,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:02,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-13 19:12:02,909 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:02,910 INFO L85 PathProgramCache]: Analyzing trace with hash -987372193, now seen corresponding path program 1 times [2022-07-13 19:12:02,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:02,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900591630] [2022-07-13 19:12:02,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:02,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:03,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:03,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900591630] [2022-07-13 19:12:03,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900591630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:03,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:03,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:03,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556489963] [2022-07-13 19:12:03,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:03,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:03,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:03,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:03,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:03,052 INFO L87 Difference]: Start difference. First operand 1572 states and 2175 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:07,158 INFO L93 Difference]: Finished difference Result 3899 states and 5494 transitions. [2022-07-13 19:12:07,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:12:07,158 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:07,162 INFO L225 Difference]: With dead ends: 3899 [2022-07-13 19:12:07,162 INFO L226 Difference]: Without dead ends: 3717 [2022-07-13 19:12:07,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:12:07,163 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 11844 mSDsluCounter, 3897 mSDsCounter, 0 mSdLazyCounter, 4121 mSolverCounterSat, 1290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11844 SdHoareTripleChecker+Valid, 5000 SdHoareTripleChecker+Invalid, 5411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1290 IncrementalHoareTripleChecker+Valid, 4121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:07,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11844 Valid, 5000 Invalid, 5411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1290 Valid, 4121 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-13 19:12:07,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-13 19:12:07,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 1576. [2022-07-13 19:12:07,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4085326438267616) internal successors, (2179), 1575 states have internal predecessors, (2179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2179 transitions. [2022-07-13 19:12:07,538 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2179 transitions. Word has length 114 [2022-07-13 19:12:07,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:07,538 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 2179 transitions. [2022-07-13 19:12:07,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2179 transitions. [2022-07-13 19:12:07,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:07,543 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:07,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:07,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-13 19:12:07,543 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:07,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:07,544 INFO L85 PathProgramCache]: Analyzing trace with hash -351977045, now seen corresponding path program 1 times [2022-07-13 19:12:07,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:07,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485681520] [2022-07-13 19:12:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:07,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:07,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:07,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485681520] [2022-07-13 19:12:07,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485681520] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:07,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:07,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:07,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218164519] [2022-07-13 19:12:07,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:07,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:07,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:07,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:07,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:07,637 INFO L87 Difference]: Start difference. First operand 1576 states and 2179 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:10,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:10,040 INFO L93 Difference]: Finished difference Result 2875 states and 4010 transitions. [2022-07-13 19:12:10,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:10,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:10,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:10,045 INFO L225 Difference]: With dead ends: 2875 [2022-07-13 19:12:10,045 INFO L226 Difference]: Without dead ends: 2697 [2022-07-13 19:12:10,046 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:10,047 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 5639 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 3451 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5639 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 3626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:10,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5639 Valid, 4201 Invalid, 3626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3451 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:12:10,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2022-07-13 19:12:10,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1576. [2022-07-13 19:12:10,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4078862314156433) internal successors, (2178), 1575 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:10,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2178 transitions. [2022-07-13 19:12:10,431 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2178 transitions. Word has length 114 [2022-07-13 19:12:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:10,431 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 2178 transitions. [2022-07-13 19:12:10,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2178 transitions. [2022-07-13 19:12:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:10,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:10,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:10,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-13 19:12:10,433 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:10,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:10,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1333833148, now seen corresponding path program 1 times [2022-07-13 19:12:10,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:10,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388190414] [2022-07-13 19:12:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:10,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:10,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:10,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388190414] [2022-07-13 19:12:10,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388190414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:10,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:10,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:10,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573395406] [2022-07-13 19:12:10,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:10,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:10,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:10,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:10,576 INFO L87 Difference]: Start difference. First operand 1576 states and 2178 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:14,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:14,957 INFO L93 Difference]: Finished difference Result 4133 states and 5852 transitions. [2022-07-13 19:12:14,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:12:14,957 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:14,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:14,961 INFO L225 Difference]: With dead ends: 4133 [2022-07-13 19:12:14,961 INFO L226 Difference]: Without dead ends: 3938 [2022-07-13 19:12:14,961 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:14,962 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 12494 mSDsluCounter, 4334 mSDsCounter, 0 mSdLazyCounter, 4534 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12494 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 5536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 4534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:14,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12494 Valid, 5618 Invalid, 5536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 4534 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-13 19:12:14,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-07-13 19:12:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 1580. [2022-07-13 19:12:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1551 states have (on average 1.4068343004513217) internal successors, (2182), 1579 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2182 transitions. [2022-07-13 19:12:15,352 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2182 transitions. Word has length 114 [2022-07-13 19:12:15,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:15,353 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 2182 transitions. [2022-07-13 19:12:15,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2182 transitions. [2022-07-13 19:12:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:15,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:15,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:15,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-13 19:12:15,354 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:15,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:15,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1812075390, now seen corresponding path program 1 times [2022-07-13 19:12:15,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:15,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918566550] [2022-07-13 19:12:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:15,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:15,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:15,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918566550] [2022-07-13 19:12:15,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918566550] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:15,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:15,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:15,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260259424] [2022-07-13 19:12:15,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:15,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:15,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:15,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:15,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:15,444 INFO L87 Difference]: Start difference. First operand 1580 states and 2182 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:18,111 INFO L93 Difference]: Finished difference Result 2879 states and 4013 transitions. [2022-07-13 19:12:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:18,114 INFO L225 Difference]: With dead ends: 2879 [2022-07-13 19:12:18,114 INFO L226 Difference]: Without dead ends: 2701 [2022-07-13 19:12:18,115 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:18,115 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 6485 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 4342 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6485 SdHoareTripleChecker+Valid, 5379 SdHoareTripleChecker+Invalid, 4524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 4342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:18,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6485 Valid, 5379 Invalid, 4524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 4342 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:12:18,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-07-13 19:12:18,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1580. [2022-07-13 19:12:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1551 states have (on average 1.4061895551257253) internal successors, (2181), 1579 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2181 transitions. [2022-07-13 19:12:18,495 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2181 transitions. Word has length 114 [2022-07-13 19:12:18,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:18,495 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 2181 transitions. [2022-07-13 19:12:18,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2181 transitions. [2022-07-13 19:12:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:18,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:18,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:18,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-13 19:12:18,497 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:18,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:18,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1611191930, now seen corresponding path program 1 times [2022-07-13 19:12:18,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:18,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846875379] [2022-07-13 19:12:18,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:18,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:18,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846875379] [2022-07-13 19:12:18,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846875379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:18,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:18,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:18,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639813335] [2022-07-13 19:12:18,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:18,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:18,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:18,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:18,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:18,639 INFO L87 Difference]: Start difference. First operand 1580 states and 2181 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:22,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:22,933 INFO L93 Difference]: Finished difference Result 3895 states and 5487 transitions. [2022-07-13 19:12:22,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:12:22,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:22,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:22,937 INFO L225 Difference]: With dead ends: 3895 [2022-07-13 19:12:22,937 INFO L226 Difference]: Without dead ends: 3717 [2022-07-13 19:12:22,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:12:22,938 INFO L413 NwaCegarLoop]: 1091 mSDtfsCounter, 9821 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 1084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9821 SdHoareTripleChecker+Valid, 4967 SdHoareTripleChecker+Invalid, 5170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:22,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9821 Valid, 4967 Invalid, 5170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1084 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 19:12:22,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-13 19:12:23,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 1584. [2022-07-13 19:12:23,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1555 states have (on average 1.405144694533762) internal successors, (2185), 1583 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2185 transitions. [2022-07-13 19:12:23,352 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2185 transitions. Word has length 114 [2022-07-13 19:12:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:23,352 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 2185 transitions. [2022-07-13 19:12:23,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2185 transitions. [2022-07-13 19:12:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:23,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:23,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:23,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-13 19:12:23,353 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:23,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:23,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1777543820, now seen corresponding path program 1 times [2022-07-13 19:12:23,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:23,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189224620] [2022-07-13 19:12:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:23,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:23,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:23,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:23,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189224620] [2022-07-13 19:12:23,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189224620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:23,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:23,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:23,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891618096] [2022-07-13 19:12:23,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:23,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:23,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:23,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:23,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:23,482 INFO L87 Difference]: Start difference. First operand 1584 states and 2185 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:28,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:28,122 INFO L93 Difference]: Finished difference Result 4137 states and 5851 transitions. [2022-07-13 19:12:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:12:28,123 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:28,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:28,127 INFO L225 Difference]: With dead ends: 4137 [2022-07-13 19:12:28,127 INFO L226 Difference]: Without dead ends: 3942 [2022-07-13 19:12:28,128 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:28,128 INFO L413 NwaCegarLoop]: 1263 mSDtfsCounter, 12601 mSDsluCounter, 4284 mSDsCounter, 0 mSdLazyCounter, 4464 mSolverCounterSat, 1025 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12601 SdHoareTripleChecker+Valid, 5547 SdHoareTripleChecker+Invalid, 5489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1025 IncrementalHoareTripleChecker+Valid, 4464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:28,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12601 Valid, 5547 Invalid, 5489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1025 Valid, 4464 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-13 19:12:28,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2022-07-13 19:12:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 1588. [2022-07-13 19:12:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1559 states have (on average 1.4041051956382296) internal successors, (2189), 1587 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:28,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2189 transitions. [2022-07-13 19:12:28,561 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2189 transitions. Word has length 114 [2022-07-13 19:12:28,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:28,562 INFO L495 AbstractCegarLoop]: Abstraction has 1588 states and 2189 transitions. [2022-07-13 19:12:28,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:28,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2189 transitions. [2022-07-13 19:12:28,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:28,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:28,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:28,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-13 19:12:28,564 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:28,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:28,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1368364718, now seen corresponding path program 1 times [2022-07-13 19:12:28,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:28,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225542325] [2022-07-13 19:12:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:28,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:28,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:28,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225542325] [2022-07-13 19:12:28,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225542325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:28,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:28,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:28,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127024336] [2022-07-13 19:12:28,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:28,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:28,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:28,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:28,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:28,697 INFO L87 Difference]: Start difference. First operand 1588 states and 2189 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:31,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:31,529 INFO L93 Difference]: Finished difference Result 2883 states and 4015 transitions. [2022-07-13 19:12:31,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:31,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:31,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:31,532 INFO L225 Difference]: With dead ends: 2883 [2022-07-13 19:12:31,532 INFO L226 Difference]: Without dead ends: 2705 [2022-07-13 19:12:31,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:12:31,533 INFO L413 NwaCegarLoop]: 1041 mSDtfsCounter, 6492 mSDsluCounter, 4315 mSDsCounter, 0 mSdLazyCounter, 4310 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6492 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 4492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 4310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:31,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6492 Valid, 5356 Invalid, 4492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 4310 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:12:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-07-13 19:12:31,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1588. [2022-07-13 19:12:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1559 states have (on average 1.4034637588197563) internal successors, (2188), 1587 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2188 transitions. [2022-07-13 19:12:31,957 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2188 transitions. Word has length 114 [2022-07-13 19:12:31,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:31,957 INFO L495 AbstractCegarLoop]: Abstraction has 1588 states and 2188 transitions. [2022-07-13 19:12:31,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2188 transitions. [2022-07-13 19:12:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:31,959 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:31,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:31,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-13 19:12:31,959 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:31,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:31,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1167481258, now seen corresponding path program 1 times [2022-07-13 19:12:31,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:31,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886475345] [2022-07-13 19:12:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:31,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:32,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:32,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886475345] [2022-07-13 19:12:32,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886475345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:32,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:32,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:32,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983732155] [2022-07-13 19:12:32,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:32,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:32,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:32,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:32,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:32,101 INFO L87 Difference]: Start difference. First operand 1588 states and 2188 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:36,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:36,473 INFO L93 Difference]: Finished difference Result 3899 states and 5489 transitions. [2022-07-13 19:12:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:12:36,474 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:36,478 INFO L225 Difference]: With dead ends: 3899 [2022-07-13 19:12:36,478 INFO L226 Difference]: Without dead ends: 3721 [2022-07-13 19:12:36,478 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:36,479 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 9842 mSDsluCounter, 3858 mSDsCounter, 0 mSdLazyCounter, 4058 mSolverCounterSat, 1094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9842 SdHoareTripleChecker+Valid, 4942 SdHoareTripleChecker+Invalid, 5152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1094 IncrementalHoareTripleChecker+Valid, 4058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:36,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9842 Valid, 4942 Invalid, 5152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1094 Valid, 4058 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-13 19:12:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3721 states. [2022-07-13 19:12:36,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3721 to 1592. [2022-07-13 19:12:36,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1563 states have (on average 1.4024312220089572) internal successors, (2192), 1591 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:36,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2192 transitions. [2022-07-13 19:12:36,924 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2192 transitions. Word has length 114 [2022-07-13 19:12:36,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:36,924 INFO L495 AbstractCegarLoop]: Abstraction has 1592 states and 2192 transitions. [2022-07-13 19:12:36,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:36,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2192 transitions. [2022-07-13 19:12:36,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:36,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:36,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:36,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-13 19:12:36,926 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:36,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:36,926 INFO L85 PathProgramCache]: Analyzing trace with hash -340131803, now seen corresponding path program 1 times [2022-07-13 19:12:36,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:36,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475709800] [2022-07-13 19:12:36,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:36,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:37,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:37,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475709800] [2022-07-13 19:12:37,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475709800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:37,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:37,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:37,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679038584] [2022-07-13 19:12:37,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:37,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:37,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:37,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:37,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:37,015 INFO L87 Difference]: Start difference. First operand 1592 states and 2192 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:40,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:40,056 INFO L93 Difference]: Finished difference Result 2882 states and 4012 transitions. [2022-07-13 19:12:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:40,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:40,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:40,059 INFO L225 Difference]: With dead ends: 2882 [2022-07-13 19:12:40,059 INFO L226 Difference]: Without dead ends: 2705 [2022-07-13 19:12:40,059 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:40,060 INFO L413 NwaCegarLoop]: 1036 mSDtfsCounter, 6498 mSDsluCounter, 4300 mSDsCounter, 0 mSdLazyCounter, 4277 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6498 SdHoareTripleChecker+Valid, 5336 SdHoareTripleChecker+Invalid, 4459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 4277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:40,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6498 Valid, 5336 Invalid, 4459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 4277 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:12:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-07-13 19:12:40,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1592. [2022-07-13 19:12:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1563 states have (on average 1.4017914267434421) internal successors, (2191), 1591 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2191 transitions. [2022-07-13 19:12:40,509 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2191 transitions. Word has length 114 [2022-07-13 19:12:40,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:40,509 INFO L495 AbstractCegarLoop]: Abstraction has 1592 states and 2191 transitions. [2022-07-13 19:12:40,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2191 transitions. [2022-07-13 19:12:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:40,511 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:40,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:40,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-13 19:12:40,511 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:40,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1608318294, now seen corresponding path program 1 times [2022-07-13 19:12:40,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:40,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062542173] [2022-07-13 19:12:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:40,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:40,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062542173] [2022-07-13 19:12:40,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062542173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:40,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:40,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:40,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484755800] [2022-07-13 19:12:40,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:40,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:40,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:40,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:40,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:40,585 INFO L87 Difference]: Start difference. First operand 1592 states and 2191 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:43,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:43,106 INFO L93 Difference]: Finished difference Result 2883 states and 4012 transitions. [2022-07-13 19:12:43,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:43,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:43,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:43,109 INFO L225 Difference]: With dead ends: 2883 [2022-07-13 19:12:43,109 INFO L226 Difference]: Without dead ends: 2705 [2022-07-13 19:12:43,110 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:43,110 INFO L413 NwaCegarLoop]: 1050 mSDtfsCounter, 3695 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3695 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 3657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 3544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:43,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3695 Valid, 4345 Invalid, 3657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 3544 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:12:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-07-13 19:12:43,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1592. [2022-07-13 19:12:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1563 states have (on average 1.401151631477927) internal successors, (2190), 1591 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2190 transitions. [2022-07-13 19:12:43,560 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2190 transitions. Word has length 114 [2022-07-13 19:12:43,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:43,560 INFO L495 AbstractCegarLoop]: Abstraction has 1592 states and 2190 transitions. [2022-07-13 19:12:43,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2190 transitions. [2022-07-13 19:12:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:43,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:43,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:43,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-13 19:12:43,562 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:43,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2040385468, now seen corresponding path program 1 times [2022-07-13 19:12:43,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:43,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497026351] [2022-07-13 19:12:43,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:43,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:43,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:43,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497026351] [2022-07-13 19:12:43,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497026351] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:43,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:43,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:43,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974338543] [2022-07-13 19:12:43,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:43,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:43,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:43,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:43,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:43,682 INFO L87 Difference]: Start difference. First operand 1592 states and 2190 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:46,497 INFO L93 Difference]: Finished difference Result 2882 states and 4009 transitions. [2022-07-13 19:12:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:46,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:46,500 INFO L225 Difference]: With dead ends: 2882 [2022-07-13 19:12:46,500 INFO L226 Difference]: Without dead ends: 2705 [2022-07-13 19:12:46,501 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:46,501 INFO L413 NwaCegarLoop]: 1048 mSDtfsCounter, 6478 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 4262 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6478 SdHoareTripleChecker+Valid, 5384 SdHoareTripleChecker+Invalid, 4444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 4262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:46,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6478 Valid, 5384 Invalid, 4444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 4262 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 19:12:46,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-07-13 19:12:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1592. [2022-07-13 19:12:46,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1563 states have (on average 1.400511836212412) internal successors, (2189), 1591 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2189 transitions. [2022-07-13 19:12:46,923 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2189 transitions. Word has length 114 [2022-07-13 19:12:46,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:46,923 INFO L495 AbstractCegarLoop]: Abstraction has 1592 states and 2189 transitions. [2022-07-13 19:12:46,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:46,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2189 transitions. [2022-07-13 19:12:46,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:46,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:46,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:46,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-13 19:12:46,925 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:46,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1422313079, now seen corresponding path program 1 times [2022-07-13 19:12:46,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:46,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483035870] [2022-07-13 19:12:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:46,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:47,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:47,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:47,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483035870] [2022-07-13 19:12:47,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483035870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:47,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:47,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:47,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247551859] [2022-07-13 19:12:47,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:47,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:47,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:47,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:47,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:47,011 INFO L87 Difference]: Start difference. First operand 1592 states and 2189 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:49,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:49,475 INFO L93 Difference]: Finished difference Result 2882 states and 4008 transitions. [2022-07-13 19:12:49,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:49,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:49,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:49,478 INFO L225 Difference]: With dead ends: 2882 [2022-07-13 19:12:49,479 INFO L226 Difference]: Without dead ends: 2705 [2022-07-13 19:12:49,479 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:49,479 INFO L413 NwaCegarLoop]: 1050 mSDtfsCounter, 5541 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5541 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 3707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 3534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:49,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5541 Valid, 4345 Invalid, 3707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 3534 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:12:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-07-13 19:12:49,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1592. [2022-07-13 19:12:49,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1563 states have (on average 1.399872040946897) internal successors, (2188), 1591 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:49,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2188 transitions. [2022-07-13 19:12:49,923 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2188 transitions. Word has length 114 [2022-07-13 19:12:49,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:49,923 INFO L495 AbstractCegarLoop]: Abstraction has 1592 states and 2188 transitions. [2022-07-13 19:12:49,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:49,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2188 transitions. [2022-07-13 19:12:49,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:49,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:49,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:49,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-13 19:12:49,925 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:49,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:49,925 INFO L85 PathProgramCache]: Analyzing trace with hash -690725463, now seen corresponding path program 1 times [2022-07-13 19:12:49,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:49,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094776869] [2022-07-13 19:12:49,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:49,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:50,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:50,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094776869] [2022-07-13 19:12:50,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094776869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:50,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:50,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:50,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800243901] [2022-07-13 19:12:50,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:50,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:50,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:50,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:50,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:50,071 INFO L87 Difference]: Start difference. First operand 1592 states and 2188 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:55,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:55,584 INFO L93 Difference]: Finished difference Result 4179 states and 5894 transitions. [2022-07-13 19:12:55,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:12:55,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:55,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:55,588 INFO L225 Difference]: With dead ends: 4179 [2022-07-13 19:12:55,588 INFO L226 Difference]: Without dead ends: 3965 [2022-07-13 19:12:55,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:12:55,589 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 10501 mSDsluCounter, 5899 mSDsCounter, 0 mSdLazyCounter, 5836 mSolverCounterSat, 988 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10501 SdHoareTripleChecker+Valid, 7219 SdHoareTripleChecker+Invalid, 6824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 5836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:55,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10501 Valid, 7219 Invalid, 6824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [988 Valid, 5836 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-13 19:12:55,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2022-07-13 19:12:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 1600. [2022-07-13 19:12:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1571 states have (on average 1.3978357733927436) internal successors, (2196), 1599 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:56,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2196 transitions. [2022-07-13 19:12:56,056 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2196 transitions. Word has length 114 [2022-07-13 19:12:56,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:56,057 INFO L495 AbstractCegarLoop]: Abstraction has 1600 states and 2196 transitions. [2022-07-13 19:12:56,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:56,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2196 transitions. [2022-07-13 19:12:56,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:56,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:56,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:56,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-13 19:12:56,059 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1099570691, now seen corresponding path program 1 times [2022-07-13 19:12:56,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:56,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683200923] [2022-07-13 19:12:56,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:56,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:56,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:56,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683200923] [2022-07-13 19:12:56,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683200923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:56,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:56,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:56,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244644091] [2022-07-13 19:12:56,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:56,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:56,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:56,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:56,166 INFO L87 Difference]: Start difference. First operand 1600 states and 2196 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:59,014 INFO L93 Difference]: Finished difference Result 2901 states and 4027 transitions. [2022-07-13 19:12:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:12:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:12:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:59,018 INFO L225 Difference]: With dead ends: 2901 [2022-07-13 19:12:59,018 INFO L226 Difference]: Without dead ends: 2713 [2022-07-13 19:12:59,018 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:12:59,019 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 6583 mSDsluCounter, 4135 mSDsCounter, 0 mSdLazyCounter, 4068 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6583 SdHoareTripleChecker+Valid, 5116 SdHoareTripleChecker+Invalid, 4252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 4068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:59,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6583 Valid, 5116 Invalid, 4252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 4068 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:12:59,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2022-07-13 19:12:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 1600. [2022-07-13 19:12:59,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1571 states have (on average 1.3965626989178868) internal successors, (2194), 1599 states have internal predecessors, (2194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:59,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2194 transitions. [2022-07-13 19:12:59,476 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2194 transitions. Word has length 114 [2022-07-13 19:12:59,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:59,476 INFO L495 AbstractCegarLoop]: Abstraction has 1600 states and 2194 transitions. [2022-07-13 19:12:59,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2194 transitions. [2022-07-13 19:12:59,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:12:59,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:59,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:59,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-13 19:12:59,478 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:12:59,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1590628539, now seen corresponding path program 1 times [2022-07-13 19:12:59,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:59,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064232465] [2022-07-13 19:12:59,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:59,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:59,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:59,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:59,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064232465] [2022-07-13 19:12:59,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064232465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:59,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:59,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:59,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546110979] [2022-07-13 19:12:59,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:59,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:59,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:59,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:59,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:59,602 INFO L87 Difference]: Start difference. First operand 1600 states and 2194 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:04,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:04,412 INFO L93 Difference]: Finished difference Result 4179 states and 5894 transitions. [2022-07-13 19:13:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:13:04,412 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:04,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:04,416 INFO L225 Difference]: With dead ends: 4179 [2022-07-13 19:13:04,416 INFO L226 Difference]: Without dead ends: 3965 [2022-07-13 19:13:04,417 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:04,417 INFO L413 NwaCegarLoop]: 1222 mSDtfsCounter, 10614 mSDsluCounter, 4178 mSDsCounter, 0 mSdLazyCounter, 4282 mSolverCounterSat, 900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10614 SdHoareTripleChecker+Valid, 5400 SdHoareTripleChecker+Invalid, 5182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 4282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:04,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10614 Valid, 5400 Invalid, 5182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 4282 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 19:13:04,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2022-07-13 19:13:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 1608. [2022-07-13 19:13:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1579 states have (on average 1.3945535148828372) internal successors, (2202), 1607 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:04,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2202 transitions. [2022-07-13 19:13:04,883 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2202 transitions. Word has length 114 [2022-07-13 19:13:04,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:04,883 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2202 transitions. [2022-07-13 19:13:04,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2202 transitions. [2022-07-13 19:13:04,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:04,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:04,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:04,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-13 19:13:04,885 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:04,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:04,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1555279999, now seen corresponding path program 1 times [2022-07-13 19:13:04,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:04,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057675273] [2022-07-13 19:13:04,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:04,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:04,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:04,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057675273] [2022-07-13 19:13:04,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057675273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:04,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:04,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:04,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626466552] [2022-07-13 19:13:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:04,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:04,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:04,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:04,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:04,969 INFO L87 Difference]: Start difference. First operand 1608 states and 2202 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:07,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:07,590 INFO L93 Difference]: Finished difference Result 2907 states and 4032 transitions. [2022-07-13 19:13:07,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:07,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:07,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:07,593 INFO L225 Difference]: With dead ends: 2907 [2022-07-13 19:13:07,593 INFO L226 Difference]: Without dead ends: 2721 [2022-07-13 19:13:07,594 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:07,594 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 5464 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 3547 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 4360 SdHoareTripleChecker+Invalid, 3719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:07,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5464 Valid, 4360 Invalid, 3719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 3547 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:13:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2022-07-13 19:13:08,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 1608. [2022-07-13 19:13:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1579 states have (on average 1.3932868904369855) internal successors, (2200), 1607 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:08,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2200 transitions. [2022-07-13 19:13:08,079 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2200 transitions. Word has length 114 [2022-07-13 19:13:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:08,079 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2200 transitions. [2022-07-13 19:13:08,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:08,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2200 transitions. [2022-07-13 19:13:08,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:08,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:08,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:08,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-13 19:13:08,081 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:08,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:08,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1354396539, now seen corresponding path program 1 times [2022-07-13 19:13:08,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:08,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975719122] [2022-07-13 19:13:08,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:08,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:08,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:08,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975719122] [2022-07-13 19:13:08,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975719122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:08,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:08,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:13:08,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839699252] [2022-07-13 19:13:08,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:08,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:13:08,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:08,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:13:08,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:13:08,214 INFO L87 Difference]: Start difference. First operand 1608 states and 2200 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:13,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:13,167 INFO L93 Difference]: Finished difference Result 3931 states and 5516 transitions. [2022-07-13 19:13:13,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:13:13,167 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:13,171 INFO L225 Difference]: With dead ends: 3931 [2022-07-13 19:13:13,171 INFO L226 Difference]: Without dead ends: 3745 [2022-07-13 19:13:13,171 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:13,171 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 9891 mSDsluCounter, 3844 mSDsCounter, 0 mSdLazyCounter, 3994 mSolverCounterSat, 1104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9891 SdHoareTripleChecker+Valid, 4923 SdHoareTripleChecker+Invalid, 5098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1104 IncrementalHoareTripleChecker+Valid, 3994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:13,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9891 Valid, 4923 Invalid, 5098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1104 Valid, 3994 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 19:13:13,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3745 states. [2022-07-13 19:13:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3745 to 1616. [2022-07-13 19:13:13,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1587 states have (on average 1.391304347826087) internal successors, (2208), 1615 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:13,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2208 transitions. [2022-07-13 19:13:13,680 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2208 transitions. Word has length 114 [2022-07-13 19:13:13,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:13,680 INFO L495 AbstractCegarLoop]: Abstraction has 1616 states and 2208 transitions. [2022-07-13 19:13:13,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2208 transitions. [2022-07-13 19:13:13,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:13,681 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:13,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:13,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-13 19:13:13,681 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:13,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:13,682 INFO L85 PathProgramCache]: Analyzing trace with hash -369561292, now seen corresponding path program 1 times [2022-07-13 19:13:13,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:13,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771295771] [2022-07-13 19:13:13,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:13,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:13,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771295771] [2022-07-13 19:13:13,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771295771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:13,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:13,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:13,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159478846] [2022-07-13 19:13:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:13,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:13,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:13,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:13,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:13,759 INFO L87 Difference]: Start difference. First operand 1616 states and 2208 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:16,344 INFO L93 Difference]: Finished difference Result 2905 states and 4026 transitions. [2022-07-13 19:13:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:16,347 INFO L225 Difference]: With dead ends: 2905 [2022-07-13 19:13:16,347 INFO L226 Difference]: Without dead ends: 2721 [2022-07-13 19:13:16,348 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:16,348 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 7536 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7536 SdHoareTripleChecker+Valid, 4138 SdHoareTripleChecker+Invalid, 3557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:16,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7536 Valid, 4138 Invalid, 3557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:13:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2022-07-13 19:13:16,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 1616. [2022-07-13 19:13:16,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1587 states have (on average 1.3900441083805923) internal successors, (2206), 1615 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:16,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2206 transitions. [2022-07-13 19:13:16,851 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2206 transitions. Word has length 114 [2022-07-13 19:13:16,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:16,851 INFO L495 AbstractCegarLoop]: Abstraction has 1616 states and 2206 transitions. [2022-07-13 19:13:16,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:16,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2206 transitions. [2022-07-13 19:13:16,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:16,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:16,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:16,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-13 19:13:16,854 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:16,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2138520516, now seen corresponding path program 1 times [2022-07-13 19:13:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:16,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821772020] [2022-07-13 19:13:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:16,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:16,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:16,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821772020] [2022-07-13 19:13:16,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821772020] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:16,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:16,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:16,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610256198] [2022-07-13 19:13:16,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:16,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:16,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:16,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:16,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:16,944 INFO L87 Difference]: Start difference. First operand 1616 states and 2206 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:19,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:19,841 INFO L93 Difference]: Finished difference Result 2987 states and 4147 transitions. [2022-07-13 19:13:19,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:19,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:19,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:19,845 INFO L225 Difference]: With dead ends: 2987 [2022-07-13 19:13:19,845 INFO L226 Difference]: Without dead ends: 2761 [2022-07-13 19:13:19,845 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:19,846 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 6907 mSDsluCounter, 4392 mSDsCounter, 0 mSdLazyCounter, 4156 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6907 SdHoareTripleChecker+Valid, 5416 SdHoareTripleChecker+Invalid, 4255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 4156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:19,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6907 Valid, 5416 Invalid, 4255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 4156 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:13:19,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-07-13 19:13:20,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1616. [2022-07-13 19:13:20,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1587 states have (on average 1.3887838689350978) internal successors, (2204), 1615 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2204 transitions. [2022-07-13 19:13:20,389 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2204 transitions. Word has length 114 [2022-07-13 19:13:20,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:20,389 INFO L495 AbstractCegarLoop]: Abstraction has 1616 states and 2204 transitions. [2022-07-13 19:13:20,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2204 transitions. [2022-07-13 19:13:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:20,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:20,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:20,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-13 19:13:20,391 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:20,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:20,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1747601552, now seen corresponding path program 1 times [2022-07-13 19:13:20,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:20,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577701081] [2022-07-13 19:13:20,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:20,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:20,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:20,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:20,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577701081] [2022-07-13 19:13:20,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577701081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:20,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:20,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:20,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648424706] [2022-07-13 19:13:20,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:20,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:20,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:20,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:20,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:20,482 INFO L87 Difference]: Start difference. First operand 1616 states and 2204 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:23,381 INFO L93 Difference]: Finished difference Result 2913 states and 4031 transitions. [2022-07-13 19:13:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:23,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:23,384 INFO L225 Difference]: With dead ends: 2913 [2022-07-13 19:13:23,384 INFO L226 Difference]: Without dead ends: 2721 [2022-07-13 19:13:23,384 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:23,384 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 6536 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 4269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:23,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6536 Valid, 5198 Invalid, 4269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:13:23,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2022-07-13 19:13:23,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 1616. [2022-07-13 19:13:23,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1587 states have (on average 1.387523629489603) internal successors, (2202), 1615 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:23,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2202 transitions. [2022-07-13 19:13:23,950 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2202 transitions. Word has length 114 [2022-07-13 19:13:23,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:23,950 INFO L495 AbstractCegarLoop]: Abstraction has 1616 states and 2202 transitions. [2022-07-13 19:13:23,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:23,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2202 transitions. [2022-07-13 19:13:23,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:23,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:23,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:23,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-13 19:13:23,952 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:23,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash -187578806, now seen corresponding path program 1 times [2022-07-13 19:13:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:23,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526124429] [2022-07-13 19:13:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:23,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:24,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:24,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:24,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526124429] [2022-07-13 19:13:24,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526124429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:24,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:24,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:13:24,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170481485] [2022-07-13 19:13:24,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:24,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:13:24,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:24,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:13:24,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:13:24,104 INFO L87 Difference]: Start difference. First operand 1616 states and 2202 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:29,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:29,889 INFO L93 Difference]: Finished difference Result 4595 states and 6448 transitions. [2022-07-13 19:13:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:13:29,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:29,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:29,894 INFO L225 Difference]: With dead ends: 4595 [2022-07-13 19:13:29,894 INFO L226 Difference]: Without dead ends: 4295 [2022-07-13 19:13:29,895 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:29,895 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 9308 mSDsluCounter, 5394 mSDsCounter, 0 mSdLazyCounter, 5328 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9308 SdHoareTripleChecker+Valid, 6855 SdHoareTripleChecker+Invalid, 6058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 5328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:29,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9308 Valid, 6855 Invalid, 6058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 5328 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-13 19:13:29,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4295 states. [2022-07-13 19:13:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4295 to 1624. [2022-07-13 19:13:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1595 states have (on average 1.3855799373040751) internal successors, (2210), 1623 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:30,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2210 transitions. [2022-07-13 19:13:30,468 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2210 transitions. Word has length 114 [2022-07-13 19:13:30,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:30,468 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2210 transitions. [2022-07-13 19:13:30,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:30,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2210 transitions. [2022-07-13 19:13:30,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:30,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:30,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:30,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-13 19:13:30,470 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:30,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:30,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1485736079, now seen corresponding path program 1 times [2022-07-13 19:13:30,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:30,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459440979] [2022-07-13 19:13:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:30,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:30,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:30,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459440979] [2022-07-13 19:13:30,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459440979] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:30,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:30,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:30,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462003304] [2022-07-13 19:13:30,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:30,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:30,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:30,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:30,548 INFO L87 Difference]: Start difference. First operand 1624 states and 2210 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:33,362 INFO L93 Difference]: Finished difference Result 2915 states and 4030 transitions. [2022-07-13 19:13:33,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:33,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:33,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:33,365 INFO L225 Difference]: With dead ends: 2915 [2022-07-13 19:13:33,365 INFO L226 Difference]: Without dead ends: 2729 [2022-07-13 19:13:33,366 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:33,366 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 7120 mSDsluCounter, 3378 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7120 SdHoareTripleChecker+Valid, 4427 SdHoareTripleChecker+Invalid, 3794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:33,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7120 Valid, 4427 Invalid, 3794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:13:33,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-07-13 19:13:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1624. [2022-07-13 19:13:33,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1595 states have (on average 1.3843260188087774) internal successors, (2208), 1623 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2208 transitions. [2022-07-13 19:13:33,931 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2208 transitions. Word has length 114 [2022-07-13 19:13:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:33,931 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2208 transitions. [2022-07-13 19:13:33,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2208 transitions. [2022-07-13 19:13:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:33,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:33,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:33,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-13 19:13:33,933 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:33,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:33,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2122503553, now seen corresponding path program 1 times [2022-07-13 19:13:33,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:33,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376384710] [2022-07-13 19:13:33,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:33,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:34,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:34,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:34,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376384710] [2022-07-13 19:13:34,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376384710] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:34,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:34,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:34,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3389767] [2022-07-13 19:13:34,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:34,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:34,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:34,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:34,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:34,013 INFO L87 Difference]: Start difference. First operand 1624 states and 2208 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:36,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:36,868 INFO L93 Difference]: Finished difference Result 2921 states and 4035 transitions. [2022-07-13 19:13:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:36,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:36,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:36,871 INFO L225 Difference]: With dead ends: 2921 [2022-07-13 19:13:36,871 INFO L226 Difference]: Without dead ends: 2729 [2022-07-13 19:13:36,872 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:36,872 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 3651 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 3531 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3651 SdHoareTripleChecker+Valid, 4421 SdHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:36,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3651 Valid, 4421 Invalid, 3643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3531 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:13:36,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-07-13 19:13:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1624. [2022-07-13 19:13:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1595 states have (on average 1.3830721003134796) internal successors, (2206), 1623 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:37,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2206 transitions. [2022-07-13 19:13:37,465 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2206 transitions. Word has length 114 [2022-07-13 19:13:37,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:37,465 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2206 transitions. [2022-07-13 19:13:37,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:37,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2206 transitions. [2022-07-13 19:13:37,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:37,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:37,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:37,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-13 19:13:37,467 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:37,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:37,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1804361568, now seen corresponding path program 1 times [2022-07-13 19:13:37,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:37,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078700494] [2022-07-13 19:13:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:37,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:37,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:37,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:37,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078700494] [2022-07-13 19:13:37,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078700494] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:37,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:37,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:37,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411849678] [2022-07-13 19:13:37,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:37,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:37,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:37,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:37,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:37,589 INFO L87 Difference]: Start difference. First operand 1624 states and 2206 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:41,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:41,516 INFO L93 Difference]: Finished difference Result 2921 states and 4031 transitions. [2022-07-13 19:13:41,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:41,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:41,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:41,519 INFO L225 Difference]: With dead ends: 2921 [2022-07-13 19:13:41,519 INFO L226 Difference]: Without dead ends: 2729 [2022-07-13 19:13:41,520 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:41,520 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 6524 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 4067 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6524 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 4250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 4067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:41,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6524 Valid, 5198 Invalid, 4250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 4067 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-13 19:13:41,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-07-13 19:13:42,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1624. [2022-07-13 19:13:42,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1595 states have (on average 1.3818181818181818) internal successors, (2204), 1623 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2204 transitions. [2022-07-13 19:13:42,251 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2204 transitions. Word has length 114 [2022-07-13 19:13:42,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:42,251 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2204 transitions. [2022-07-13 19:13:42,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:42,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2204 transitions. [2022-07-13 19:13:42,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-13 19:13:42,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:42,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:42,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-13 19:13:42,253 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:42,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:42,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2081760500, now seen corresponding path program 1 times [2022-07-13 19:13:42,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:42,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125784578] [2022-07-13 19:13:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:42,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:42,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125784578] [2022-07-13 19:13:42,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125784578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:42,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:42,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:42,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395190089] [2022-07-13 19:13:42,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:42,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:42,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:42,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:42,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:42,344 INFO L87 Difference]: Start difference. First operand 1624 states and 2204 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:45,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:45,631 INFO L93 Difference]: Finished difference Result 2995 states and 4143 transitions. [2022-07-13 19:13:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:45,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-13 19:13:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:45,634 INFO L225 Difference]: With dead ends: 2995 [2022-07-13 19:13:45,634 INFO L226 Difference]: Without dead ends: 2769 [2022-07-13 19:13:45,634 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:45,634 INFO L413 NwaCegarLoop]: 1140 mSDtfsCounter, 5386 mSDsluCounter, 3560 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5386 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 3764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:45,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5386 Valid, 4700 Invalid, 3764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:13:45,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-07-13 19:13:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1624. [2022-07-13 19:13:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1595 states have (on average 1.380564263322884) internal successors, (2202), 1623 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2202 transitions. [2022-07-13 19:13:46,195 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2202 transitions. Word has length 114 [2022-07-13 19:13:46,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:46,195 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2202 transitions. [2022-07-13 19:13:46,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:46,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2202 transitions. [2022-07-13 19:13:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 19:13:46,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:46,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:46,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-13 19:13:46,197 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:46,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:46,197 INFO L85 PathProgramCache]: Analyzing trace with hash 775997827, now seen corresponding path program 1 times [2022-07-13 19:13:46,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:46,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103086574] [2022-07-13 19:13:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:46,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:46,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:46,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103086574] [2022-07-13 19:13:46,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103086574] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:46,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:46,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:46,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540051346] [2022-07-13 19:13:46,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:46,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:46,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:46,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:46,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:46,272 INFO L87 Difference]: Start difference. First operand 1624 states and 2202 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:49,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:49,051 INFO L93 Difference]: Finished difference Result 2973 states and 4106 transitions. [2022-07-13 19:13:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:49,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-13 19:13:49,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:49,055 INFO L225 Difference]: With dead ends: 2973 [2022-07-13 19:13:49,055 INFO L226 Difference]: Without dead ends: 2769 [2022-07-13 19:13:49,055 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:49,055 INFO L413 NwaCegarLoop]: 1166 mSDtfsCounter, 5524 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 3684 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5524 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 3773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:49,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5524 Valid, 4744 Invalid, 3773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 3684 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:13:49,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-07-13 19:13:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1620. [2022-07-13 19:13:49,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1591 states have (on average 1.380892520427404) internal successors, (2197), 1619 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:49,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2197 transitions. [2022-07-13 19:13:49,607 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2197 transitions. Word has length 115 [2022-07-13 19:13:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:49,608 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2197 transitions. [2022-07-13 19:13:49,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:49,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2197 transitions. [2022-07-13 19:13:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 19:13:49,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:49,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:49,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-13 19:13:49,609 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:49,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:49,609 INFO L85 PathProgramCache]: Analyzing trace with hash 352654659, now seen corresponding path program 1 times [2022-07-13 19:13:49,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:49,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514297513] [2022-07-13 19:13:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:49,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:49,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:49,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514297513] [2022-07-13 19:13:49,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514297513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:49,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:49,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:49,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729552289] [2022-07-13 19:13:49,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:49,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:49,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:49,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:49,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:49,683 INFO L87 Difference]: Start difference. First operand 1620 states and 2197 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:52,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:52,606 INFO L93 Difference]: Finished difference Result 2907 states and 4008 transitions. [2022-07-13 19:13:52,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:52,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-13 19:13:52,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:52,609 INFO L225 Difference]: With dead ends: 2907 [2022-07-13 19:13:52,609 INFO L226 Difference]: Without dead ends: 2725 [2022-07-13 19:13:52,609 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:52,609 INFO L413 NwaCegarLoop]: 1132 mSDtfsCounter, 5257 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 3667 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5257 SdHoareTripleChecker+Valid, 4661 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 3667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:52,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5257 Valid, 4661 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 3667 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:13:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2022-07-13 19:13:53,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 1616. [2022-07-13 19:13:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1587 states have (on average 1.3812224322621298) internal successors, (2192), 1615 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2192 transitions. [2022-07-13 19:13:53,178 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2192 transitions. Word has length 115 [2022-07-13 19:13:53,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:53,178 INFO L495 AbstractCegarLoop]: Abstraction has 1616 states and 2192 transitions. [2022-07-13 19:13:53,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:53,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2192 transitions. [2022-07-13 19:13:53,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 19:13:53,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:53,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:53,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-13 19:13:53,180 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:53,180 INFO L85 PathProgramCache]: Analyzing trace with hash 116631318, now seen corresponding path program 1 times [2022-07-13 19:13:53,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:53,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968945415] [2022-07-13 19:13:53,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:53,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:53,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:53,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968945415] [2022-07-13 19:13:53,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968945415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:53,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:53,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:53,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513255001] [2022-07-13 19:13:53,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:53,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:53,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:53,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:53,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:53,261 INFO L87 Difference]: Start difference. First operand 1616 states and 2192 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:56,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:56,382 INFO L93 Difference]: Finished difference Result 2960 states and 4091 transitions. [2022-07-13 19:13:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:13:56,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-13 19:13:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:56,385 INFO L225 Difference]: With dead ends: 2960 [2022-07-13 19:13:56,385 INFO L226 Difference]: Without dead ends: 2765 [2022-07-13 19:13:56,386 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:13:56,386 INFO L413 NwaCegarLoop]: 1185 mSDtfsCounter, 3488 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 3793 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 4900 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:56,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 4900 Invalid, 3852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3793 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:13:56,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-07-13 19:13:56,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 1612. [2022-07-13 19:13:56,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1583 states have (on average 1.381554011370815) internal successors, (2187), 1611 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:56,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2187 transitions. [2022-07-13 19:13:56,939 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2187 transitions. Word has length 115 [2022-07-13 19:13:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:56,940 INFO L495 AbstractCegarLoop]: Abstraction has 1612 states and 2187 transitions. [2022-07-13 19:13:56,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2187 transitions. [2022-07-13 19:13:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 19:13:56,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:56,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:56,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-13 19:13:56,941 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:13:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1189569746, now seen corresponding path program 1 times [2022-07-13 19:13:56,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:56,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789973528] [2022-07-13 19:13:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:56,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:57,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:57,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:57,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789973528] [2022-07-13 19:13:57,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789973528] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:57,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:57,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:13:57,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095175389] [2022-07-13 19:13:57,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:57,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:13:57,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:57,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:13:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:13:57,017 INFO L87 Difference]: Start difference. First operand 1612 states and 2187 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:00,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:14:00,018 INFO L93 Difference]: Finished difference Result 2899 states and 3998 transitions. [2022-07-13 19:14:00,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:14:00,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-13 19:14:00,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:14:00,021 INFO L225 Difference]: With dead ends: 2899 [2022-07-13 19:14:00,021 INFO L226 Difference]: Without dead ends: 2721 [2022-07-13 19:14:00,022 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:14:00,022 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 5872 mSDsluCounter, 3614 mSDsCounter, 0 mSdLazyCounter, 3739 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5872 SdHoareTripleChecker+Valid, 4771 SdHoareTripleChecker+Invalid, 3939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 3739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:14:00,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5872 Valid, 4771 Invalid, 3939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 3739 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:14:00,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2022-07-13 19:14:00,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 1608. [2022-07-13 19:14:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1579 states have (on average 1.3818872704243192) internal successors, (2182), 1607 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2182 transitions. [2022-07-13 19:14:00,601 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2182 transitions. Word has length 115 [2022-07-13 19:14:00,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:14:00,601 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2182 transitions. [2022-07-13 19:14:00,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2182 transitions. [2022-07-13 19:14:00,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 19:14:00,603 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:14:00,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:14:00,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-13 19:14:00,603 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:14:00,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:14:00,603 INFO L85 PathProgramCache]: Analyzing trace with hash 999093736, now seen corresponding path program 1 times [2022-07-13 19:14:00,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:14:00,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418693049] [2022-07-13 19:14:00,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:14:00,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:14:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:14:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:14:00,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:14:00,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418693049] [2022-07-13 19:14:00,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418693049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:14:00,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:14:00,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:14:00,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387969774] [2022-07-13 19:14:00,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:14:00,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:14:00,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:14:00,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:14:00,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:14:00,702 INFO L87 Difference]: Start difference. First operand 1608 states and 2182 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:03,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:14:03,705 INFO L93 Difference]: Finished difference Result 2956 states and 4084 transitions. [2022-07-13 19:14:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:14:03,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-13 19:14:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:14:03,708 INFO L225 Difference]: With dead ends: 2956 [2022-07-13 19:14:03,708 INFO L226 Difference]: Without dead ends: 2761 [2022-07-13 19:14:03,709 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:14:03,709 INFO L413 NwaCegarLoop]: 1202 mSDtfsCounter, 5165 mSDsluCounter, 3760 mSDsCounter, 0 mSdLazyCounter, 3841 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5165 SdHoareTripleChecker+Valid, 4962 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:14:03,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5165 Valid, 4962 Invalid, 3929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3841 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:14:03,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-07-13 19:14:04,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1604. [2022-07-13 19:14:04,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1575 states have (on average 1.3822222222222222) internal successors, (2177), 1603 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2177 transitions. [2022-07-13 19:14:04,292 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2177 transitions. Word has length 115 [2022-07-13 19:14:04,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:14:04,292 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2177 transitions. [2022-07-13 19:14:04,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:04,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2177 transitions. [2022-07-13 19:14:04,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 19:14:04,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:14:04,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:14:04,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-13 19:14:04,294 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:14:04,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:14:04,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2072032164, now seen corresponding path program 1 times [2022-07-13 19:14:04,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:14:04,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166683120] [2022-07-13 19:14:04,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:14:04,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:14:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:14:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:14:04,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:14:04,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166683120] [2022-07-13 19:14:04,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166683120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:14:04,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:14:04,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:14:04,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338806381] [2022-07-13 19:14:04,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:14:04,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:14:04,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:14:04,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:14:04,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:14:04,368 INFO L87 Difference]: Start difference. First operand 1604 states and 2177 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:14:07,375 INFO L93 Difference]: Finished difference Result 2895 states and 3992 transitions. [2022-07-13 19:14:07,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:14:07,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-13 19:14:07,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:14:07,378 INFO L225 Difference]: With dead ends: 2895 [2022-07-13 19:14:07,378 INFO L226 Difference]: Without dead ends: 2717 [2022-07-13 19:14:07,379 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:14:07,379 INFO L413 NwaCegarLoop]: 1179 mSDtfsCounter, 3451 mSDsluCounter, 3670 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3451 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 3922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 3813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:14:07,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3451 Valid, 4849 Invalid, 3922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:14:07,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2022-07-13 19:14:07,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1600. [2022-07-13 19:14:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1571 states have (on average 1.3825588796944621) internal successors, (2172), 1599 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:07,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2172 transitions. [2022-07-13 19:14:07,947 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2172 transitions. Word has length 115 [2022-07-13 19:14:07,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:14:07,947 INFO L495 AbstractCegarLoop]: Abstraction has 1600 states and 2172 transitions. [2022-07-13 19:14:07,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:07,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2172 transitions. [2022-07-13 19:14:07,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 19:14:07,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:14:07,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:14:07,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-13 19:14:07,949 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:14:07,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:14:07,949 INFO L85 PathProgramCache]: Analyzing trace with hash 662023771, now seen corresponding path program 1 times [2022-07-13 19:14:07,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:14:07,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428502059] [2022-07-13 19:14:07,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:14:07,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:14:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:14:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:14:08,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:14:08,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428502059] [2022-07-13 19:14:08,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428502059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:14:08,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:14:08,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:14:08,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252388213] [2022-07-13 19:14:08,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:14:08,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:14:08,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:14:08,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:14:08,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:14:08,031 INFO L87 Difference]: Start difference. First operand 1600 states and 2172 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:11,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:14:11,227 INFO L93 Difference]: Finished difference Result 2893 states and 3989 transitions. [2022-07-13 19:14:11,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:14:11,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-13 19:14:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:14:11,230 INFO L225 Difference]: With dead ends: 2893 [2022-07-13 19:14:11,230 INFO L226 Difference]: Without dead ends: 2717 [2022-07-13 19:14:11,230 INFO L412 NwaCegarLoop]: 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 [2022-07-13 19:14:11,231 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 6861 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 3628 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6861 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 3628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:14:11,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6861 Valid, 4649 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 3628 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:14:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2022-07-13 19:14:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1600. [2022-07-13 19:14:11,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1571 states have (on average 1.3819223424570337) internal successors, (2171), 1599 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:11,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2171 transitions. [2022-07-13 19:14:11,794 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2171 transitions. Word has length 115 [2022-07-13 19:14:11,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:14:11,794 INFO L495 AbstractCegarLoop]: Abstraction has 1600 states and 2171 transitions. [2022-07-13 19:14:11,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:14:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2171 transitions. [2022-07-13 19:14:11,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 19:14:11,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:14:11,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:14:11,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-13 19:14:11,795 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-07-13 19:14:11,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:14:11,796 INFO L85 PathProgramCache]: Analyzing trace with hash 119076324, now seen corresponding path program 1 times [2022-07-13 19:14:11,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:14:11,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047426390] [2022-07-13 19:14:11,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:14:11,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:14:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:14:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:14:11,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:14:11,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047426390] [2022-07-13 19:14:11,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047426390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:14:11,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:14:11,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:14:11,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068539221] [2022-07-13 19:14:11,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:14:11,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:14:11,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:14:11,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:14:11,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:14:11,871 INFO L87 Difference]: Start difference. First operand 1600 states and 2171 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)