./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d8e58e4dd7f21a353342bc0a492b99ed688619f4c3decc3151bb6acbb6daeee1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:27:55,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:27:55,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:27:55,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:27:55,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:27:55,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:27:55,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:27:55,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:27:55,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:27:55,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:27:55,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:27:55,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:27:55,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:27:55,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:27:55,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:27:55,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:27:55,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:27:55,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:27:55,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:27:55,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:27:55,547 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:27:55,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:27:55,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:27:55,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:27:55,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:27:55,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:27:55,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:27:55,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:27:55,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:27:55,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:27:55,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:27:55,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:27:55,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:27:55,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:27:55,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:27:55,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:27:55,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:27:55,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:27:55,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:27:55,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:27:55,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:27:55,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:27:55,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:27:55,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:27:55,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:27:55,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:27:55,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:27:55,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:27:55,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:27:55,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:27:55,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:27:55,601 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:27:55,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:27:55,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:27:55,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:27:55,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:27:55,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:27:55,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:27:55,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:27:55,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:27:55,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:27:55,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:27:55,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:27:55,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:27:55,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:27:55,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:27:55,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:27:55,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:27:55,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:27:55,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:27:55,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:27:55,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:27:55,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:27:55,606 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:27:55,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:27:55,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:27:55,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e58e4dd7f21a353342bc0a492b99ed688619f4c3decc3151bb6acbb6daeee1 [2022-07-12 07:27:55,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:27:55,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:27:55,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:27:55,818 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:27:55,818 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:27:55,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-07-12 07:27:55,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6792d24f2/c548e7d2185b4040813946adf9c2f992/FLAGc9f7657b1 [2022-07-12 07:27:56,493 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:27:56,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-07-12 07:27:56,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6792d24f2/c548e7d2185b4040813946adf9c2f992/FLAGc9f7657b1 [2022-07-12 07:27:56,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6792d24f2/c548e7d2185b4040813946adf9c2f992 [2022-07-12 07:27:56,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:27:56,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:27:56,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:27:56,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:27:56,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:27:56,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:27:56" (1/1) ... [2022-07-12 07:27:56,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6deebb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:56, skipping insertion in model container [2022-07-12 07:27:56,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:27:56" (1/1) ... [2022-07-12 07:27:56,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:27:56,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:27:57,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[80190,80203] [2022-07-12 07:27:57,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[115653,115666] [2022-07-12 07:27:57,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[133417,133430] [2022-07-12 07:27:57,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142316,142329] [2022-07-12 07:27:57,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[146749,146762] [2022-07-12 07:27:57,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[151062,151075] [2022-07-12 07:27:57,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[185818,185831] [2022-07-12 07:27:57,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[203409,203422] [2022-07-12 07:27:57,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[212345,212358] [2022-07-12 07:27:57,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[216815,216828] [2022-07-12 07:27:57,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[221165,221178] [2022-07-12 07:27:57,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[240022,240035] [2022-07-12 07:27:57,998 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.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[248958,248971] [2022-07-12 07:27:58,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[253428,253441] [2022-07-12 07:27:58,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[257778,257791] [2022-07-12 07:27:58,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[262743,262756] [2022-07-12 07:27:58,036 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.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[267102,267115] [2022-07-12 07:27:58,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[271572,271585] [2022-07-12 07:27:58,057 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.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[275922,275935] [2022-07-12 07:27:58,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[280508,280521] [2022-07-12 07:27:58,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[285025,285038] [2022-07-12 07:27:58,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[289491,289504] [2022-07-12 07:27:58,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:27:58,147 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:27:58,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[80190,80203] [2022-07-12 07:27:58,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[115653,115666] [2022-07-12 07:27:58,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[133417,133430] [2022-07-12 07:27:58,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142316,142329] [2022-07-12 07:27:58,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[146749,146762] [2022-07-12 07:27:58,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[151062,151075] [2022-07-12 07:27:58,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[185818,185831] [2022-07-12 07:27:58,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[203409,203422] [2022-07-12 07:27:58,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[212345,212358] [2022-07-12 07:27:58,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[216815,216828] [2022-07-12 07:27:58,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[221165,221178] [2022-07-12 07:27:58,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[240022,240035] [2022-07-12 07:27:58,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[248958,248971] [2022-07-12 07:27:58,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[253428,253441] [2022-07-12 07:27:58,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[257778,257791] [2022-07-12 07:27:58,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[262743,262756] [2022-07-12 07:27:58,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[267102,267115] [2022-07-12 07:27:58,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[271572,271585] [2022-07-12 07:27:58,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[275922,275935] [2022-07-12 07:27:58,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[280508,280521] [2022-07-12 07:27:58,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[285025,285038] [2022-07-12 07:27:58,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[289491,289504] [2022-07-12 07:27:58,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:27:58,826 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:27:58,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58 WrapperNode [2022-07-12 07:27:58,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:27:58,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:27:58,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:27:58,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:27:58,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:58,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,057 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12420 [2022-07-12 07:27:59,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:27:59,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:27:59,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:27:59,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:27:59,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:27:59,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:27:59,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:27:59,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:27:59,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (1/1) ... [2022-07-12 07:27:59,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:27:59,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:27:59,388 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) [2022-07-12 07:27:59,409 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 [2022-07-12 07:27:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:27:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:27:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:27:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:27:59,828 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:27:59,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:28:03,769 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:28:03,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:28:03,795 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:28:03,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:28:03 BoogieIcfgContainer [2022-07-12 07:28:03,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:28:03,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:28:03,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:28:03,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:28:03,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:27:56" (1/3) ... [2022-07-12 07:28:03,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e345084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:28:03, skipping insertion in model container [2022-07-12 07:28:03,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:27:58" (2/3) ... [2022-07-12 07:28:03,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e345084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:28:03, skipping insertion in model container [2022-07-12 07:28:03,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:28:03" (3/3) ... [2022-07-12 07:28:03,808 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-07-12 07:28:03,821 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:28:03,821 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-07-12 07:28:03,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:28:03,923 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@7c7c2d3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6948409c [2022-07-12 07:28:03,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-07-12 07:28:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-12 07:28:03,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:03,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:03,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:03,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:03,971 INFO L85 PathProgramCache]: Analyzing trace with hash -876960142, now seen corresponding path program 1 times [2022-07-12 07:28:03,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:03,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790720544] [2022-07-12 07:28:03,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:03,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:04,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:04,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790720544] [2022-07-12 07:28:04,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790720544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:04,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:04,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:28:04,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187840745] [2022-07-12 07:28:04,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:04,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:28:04,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:04,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:28:04,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:28:04,529 INFO L87 Difference]: Start difference. First operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:06,290 INFO L93 Difference]: Finished difference Result 3317 states and 5684 transitions. [2022-07-12 07:28:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:28:06,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-12 07:28:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:06,322 INFO L225 Difference]: With dead ends: 3317 [2022-07-12 07:28:06,322 INFO L226 Difference]: Without dead ends: 2045 [2022-07-12 07:28:06,331 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 [2022-07-12 07:28:06,350 INFO L413 NwaCegarLoop]: 1898 mSDtfsCounter, 10291 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10291 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:06,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10291 Valid, 1912 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 07:28:06,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2022-07-12 07:28:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2045. [2022-07-12 07:28:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 2023 states have (on average 1.3015323776569452) internal successors, (2633), 2044 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2633 transitions. [2022-07-12 07:28:06,585 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2633 transitions. Word has length 87 [2022-07-12 07:28:06,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:06,586 INFO L495 AbstractCegarLoop]: Abstraction has 2045 states and 2633 transitions. [2022-07-12 07:28:06,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:06,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2633 transitions. [2022-07-12 07:28:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-12 07:28:06,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:06,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:06,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:28:06,593 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:06,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:06,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1410328050, now seen corresponding path program 1 times [2022-07-12 07:28:06,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:06,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665876551] [2022-07-12 07:28:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:06,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:06,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:06,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665876551] [2022-07-12 07:28:06,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665876551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:06,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:06,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:28:06,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187457249] [2022-07-12 07:28:06,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:06,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:28:06,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:06,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:28:06,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:28:06,763 INFO L87 Difference]: Start difference. First operand 2045 states and 2633 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:07,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:07,609 INFO L93 Difference]: Finished difference Result 2235 states and 2854 transitions. [2022-07-12 07:28:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:28:07,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-12 07:28:07,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:07,616 INFO L225 Difference]: With dead ends: 2235 [2022-07-12 07:28:07,616 INFO L226 Difference]: Without dead ends: 1245 [2022-07-12 07:28:07,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:28:07,620 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 4654 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:07,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4654 Valid, 830 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:28:07,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-07-12 07:28:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1245. [2022-07-12 07:28:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1223 states have (on average 1.3082583810302535) internal successors, (1600), 1244 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1600 transitions. [2022-07-12 07:28:07,690 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1600 transitions. Word has length 87 [2022-07-12 07:28:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:07,692 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1600 transitions. [2022-07-12 07:28:07,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1600 transitions. [2022-07-12 07:28:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-12 07:28:07,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:07,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:07,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 07:28:07,697 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:07,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1125625269, now seen corresponding path program 1 times [2022-07-12 07:28:07,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:07,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719716900] [2022-07-12 07:28:07,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:07,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:07,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:07,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719716900] [2022-07-12 07:28:07,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719716900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:07,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:07,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:28:07,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238842514] [2022-07-12 07:28:07,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:07,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:28:07,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:07,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:28:07,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:28:07,823 INFO L87 Difference]: Start difference. First operand 1245 states and 1600 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:08,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:08,374 INFO L93 Difference]: Finished difference Result 1533 states and 1966 transitions. [2022-07-12 07:28:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:28:08,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-12 07:28:08,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:08,378 INFO L225 Difference]: With dead ends: 1533 [2022-07-12 07:28:08,378 INFO L226 Difference]: Without dead ends: 905 [2022-07-12 07:28:08,379 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 [2022-07-12 07:28:08,384 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 3390 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:08,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 658 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:28:08,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-07-12 07:28:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2022-07-12 07:28:08,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3216308040770102) internal successors, (1167), 904 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1167 transitions. [2022-07-12 07:28:08,433 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1167 transitions. Word has length 87 [2022-07-12 07:28:08,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:08,434 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1167 transitions. [2022-07-12 07:28:08,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:08,435 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1167 transitions. [2022-07-12 07:28:08,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-12 07:28:08,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:08,437 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] [2022-07-12 07:28:08,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 07:28:08,438 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:08,439 INFO L85 PathProgramCache]: Analyzing trace with hash -229604869, now seen corresponding path program 1 times [2022-07-12 07:28:08,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:08,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643939962] [2022-07-12 07:28:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:08,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:08,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:08,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643939962] [2022-07-12 07:28:08,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643939962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:08,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:08,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:28:08,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522895800] [2022-07-12 07:28:08,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:08,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:28:08,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:08,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:28:08,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:28:08,566 INFO L87 Difference]: Start difference. First operand 905 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:08,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:08,980 INFO L93 Difference]: Finished difference Result 1277 states and 1652 transitions. [2022-07-12 07:28:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:28:08,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-07-12 07:28:08,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:08,985 INFO L225 Difference]: With dead ends: 1277 [2022-07-12 07:28:08,986 INFO L226 Difference]: Without dead ends: 798 [2022-07-12 07:28:08,987 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 [2022-07-12 07:28:08,989 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 3032 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3032 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:08,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3032 Valid, 597 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:28:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-07-12 07:28:09,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2022-07-12 07:28:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 776 states have (on average 1.336340206185567) internal successors, (1037), 797 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1037 transitions. [2022-07-12 07:28:09,039 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1037 transitions. Word has length 89 [2022-07-12 07:28:09,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:09,040 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1037 transitions. [2022-07-12 07:28:09,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1037 transitions. [2022-07-12 07:28:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 07:28:09,046 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:09,047 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] [2022-07-12 07:28:09,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 07:28:09,047 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:09,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1455647616, now seen corresponding path program 1 times [2022-07-12 07:28:09,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:09,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525883870] [2022-07-12 07:28:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:09,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:09,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:09,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:09,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525883870] [2022-07-12 07:28:09,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525883870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:09,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:09,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:28:09,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215967192] [2022-07-12 07:28:09,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:09,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:28:09,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:09,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:28:09,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:28:09,191 INFO L87 Difference]: Start difference. First operand 798 states and 1037 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:09,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:09,582 INFO L93 Difference]: Finished difference Result 1134 states and 1473 transitions. [2022-07-12 07:28:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:28:09,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-12 07:28:09,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:09,586 INFO L225 Difference]: With dead ends: 1134 [2022-07-12 07:28:09,586 INFO L226 Difference]: Without dead ends: 710 [2022-07-12 07:28:09,587 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 [2022-07-12 07:28:09,587 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2685 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2685 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:09,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2685 Valid, 557 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:28:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-12 07:28:09,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2022-07-12 07:28:09,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 688 states have (on average 1.3444767441860466) internal successors, (925), 709 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:09,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 925 transitions. [2022-07-12 07:28:09,631 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 925 transitions. Word has length 91 [2022-07-12 07:28:09,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:09,631 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 925 transitions. [2022-07-12 07:28:09,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:09,632 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 925 transitions. [2022-07-12 07:28:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:28:09,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:09,634 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] [2022-07-12 07:28:09,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 07:28:09,634 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:09,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:09,635 INFO L85 PathProgramCache]: Analyzing trace with hash 591523847, now seen corresponding path program 1 times [2022-07-12 07:28:09,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:09,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021980592] [2022-07-12 07:28:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:09,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:09,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:09,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:09,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021980592] [2022-07-12 07:28:09,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021980592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:09,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:09,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:28:09,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825700503] [2022-07-12 07:28:09,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:09,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:28:09,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:09,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:28:09,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:28:09,719 INFO L87 Difference]: Start difference. First operand 710 states and 925 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:10,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:10,324 INFO L93 Difference]: Finished difference Result 1088 states and 1423 transitions. [2022-07-12 07:28:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:28:10,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:28:10,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:10,328 INFO L225 Difference]: With dead ends: 1088 [2022-07-12 07:28:10,328 INFO L226 Difference]: Without dead ends: 702 [2022-07-12 07:28:10,328 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 [2022-07-12 07:28:10,329 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 2538 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:10,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 482 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:28:10,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-07-12 07:28:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 702. [2022-07-12 07:28:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3455882352941178) internal successors, (915), 701 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 915 transitions. [2022-07-12 07:28:10,373 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 915 transitions. Word has length 93 [2022-07-12 07:28:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:10,373 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 915 transitions. [2022-07-12 07:28:10,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 915 transitions. [2022-07-12 07:28:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:28:10,375 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:10,375 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] [2022-07-12 07:28:10,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 07:28:10,376 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash 328441748, now seen corresponding path program 1 times [2022-07-12 07:28:10,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:10,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280588044] [2022-07-12 07:28:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:10,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:10,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:10,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:10,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280588044] [2022-07-12 07:28:10,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280588044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:10,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:10,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:28:10,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312463608] [2022-07-12 07:28:10,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:10,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:28:10,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:10,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:28:10,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:28:10,562 INFO L87 Difference]: Start difference. First operand 702 states and 915 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:11,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:11,475 INFO L93 Difference]: Finished difference Result 1330 states and 1688 transitions. [2022-07-12 07:28:11,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:28:11,475 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:28:11,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:11,479 INFO L225 Difference]: With dead ends: 1330 [2022-07-12 07:28:11,479 INFO L226 Difference]: Without dead ends: 951 [2022-07-12 07:28:11,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-12 07:28:11,480 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 5220 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5220 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:11,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5220 Valid, 1187 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:28:11,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-07-12 07:28:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 702. [2022-07-12 07:28:11,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3441176470588236) internal successors, (914), 701 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 914 transitions. [2022-07-12 07:28:11,540 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 914 transitions. Word has length 95 [2022-07-12 07:28:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:11,540 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 914 transitions. [2022-07-12 07:28:11,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 914 transitions. [2022-07-12 07:28:11,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:28:11,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:11,542 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] [2022-07-12 07:28:11,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 07:28:11,543 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:11,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:11,543 INFO L85 PathProgramCache]: Analyzing trace with hash 556118932, now seen corresponding path program 1 times [2022-07-12 07:28:11,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:11,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569009923] [2022-07-12 07:28:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:11,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:11,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:11,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569009923] [2022-07-12 07:28:11,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569009923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:11,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:11,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:11,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364851717] [2022-07-12 07:28:11,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:11,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:11,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:11,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:11,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:11,762 INFO L87 Difference]: Start difference. First operand 702 states and 914 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:13,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:13,523 INFO L93 Difference]: Finished difference Result 1351 states and 1782 transitions. [2022-07-12 07:28:13,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 07:28:13,524 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:28:13,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:13,528 INFO L225 Difference]: With dead ends: 1351 [2022-07-12 07:28:13,529 INFO L226 Difference]: Without dead ends: 1262 [2022-07-12 07:28:13,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:28:13,530 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3732 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3732 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:13,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3732 Valid, 3055 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:28:13,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-07-12 07:28:13,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 717. [2022-07-12 07:28:13,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 695 states have (on average 1.3453237410071943) internal successors, (935), 716 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 935 transitions. [2022-07-12 07:28:13,616 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 935 transitions. Word has length 95 [2022-07-12 07:28:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:13,617 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 935 transitions. [2022-07-12 07:28:13,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 935 transitions. [2022-07-12 07:28:13,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:28:13,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:13,621 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] [2022-07-12 07:28:13,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 07:28:13,621 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:13,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:13,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1407707980, now seen corresponding path program 1 times [2022-07-12 07:28:13,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:13,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632177500] [2022-07-12 07:28:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:13,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:13,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:13,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632177500] [2022-07-12 07:28:13,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632177500] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:13,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:13,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:13,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961810976] [2022-07-12 07:28:13,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:13,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:13,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:13,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:13,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:13,837 INFO L87 Difference]: Start difference. First operand 717 states and 935 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:15,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:15,319 INFO L93 Difference]: Finished difference Result 1382 states and 1814 transitions. [2022-07-12 07:28:15,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 07:28:15,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:28:15,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:15,327 INFO L225 Difference]: With dead ends: 1382 [2022-07-12 07:28:15,327 INFO L226 Difference]: Without dead ends: 1288 [2022-07-12 07:28:15,328 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 [2022-07-12 07:28:15,330 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 5760 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5760 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:15,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5760 Valid, 2832 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 07:28:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-07-12 07:28:15,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 722. [2022-07-12 07:28:15,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 700 states have (on average 1.3428571428571427) internal successors, (940), 721 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:15,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 940 transitions. [2022-07-12 07:28:15,428 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 940 transitions. Word has length 95 [2022-07-12 07:28:15,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:15,428 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 940 transitions. [2022-07-12 07:28:15,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:15,429 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 940 transitions. [2022-07-12 07:28:15,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:28:15,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:15,430 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] [2022-07-12 07:28:15,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 07:28:15,431 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:15,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:15,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1248781324, now seen corresponding path program 1 times [2022-07-12 07:28:15,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:15,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092328060] [2022-07-12 07:28:15,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:15,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:15,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:15,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092328060] [2022-07-12 07:28:15,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092328060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:15,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:15,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:15,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475947540] [2022-07-12 07:28:15,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:15,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:15,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:15,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:15,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:15,649 INFO L87 Difference]: Start difference. First operand 722 states and 940 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:17,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:17,242 INFO L93 Difference]: Finished difference Result 1343 states and 1754 transitions. [2022-07-12 07:28:17,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 07:28:17,243 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:28:17,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:17,247 INFO L225 Difference]: With dead ends: 1343 [2022-07-12 07:28:17,247 INFO L226 Difference]: Without dead ends: 1262 [2022-07-12 07:28:17,248 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 [2022-07-12 07:28:17,249 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 4939 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4939 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 3158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:17,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4939 Valid, 3629 Invalid, 3158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:28:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-07-12 07:28:17,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 726. [2022-07-12 07:28:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 704 states have (on average 1.34375) internal successors, (946), 725 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 946 transitions. [2022-07-12 07:28:17,318 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 946 transitions. Word has length 95 [2022-07-12 07:28:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:17,318 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 946 transitions. [2022-07-12 07:28:17,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 946 transitions. [2022-07-12 07:28:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:28:17,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:17,320 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] [2022-07-12 07:28:17,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 07:28:17,321 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:17,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:17,322 INFO L85 PathProgramCache]: Analyzing trace with hash -65064876, now seen corresponding path program 1 times [2022-07-12 07:28:17,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:17,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696686079] [2022-07-12 07:28:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:17,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:17,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:17,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696686079] [2022-07-12 07:28:17,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696686079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:17,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:17,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:17,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550277328] [2022-07-12 07:28:17,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:17,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:17,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:17,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:17,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:17,485 INFO L87 Difference]: Start difference. First operand 726 states and 946 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:19,037 INFO L93 Difference]: Finished difference Result 1351 states and 1763 transitions. [2022-07-12 07:28:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 07:28:19,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:28:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:19,041 INFO L225 Difference]: With dead ends: 1351 [2022-07-12 07:28:19,041 INFO L226 Difference]: Without dead ends: 1270 [2022-07-12 07:28:19,042 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 [2022-07-12 07:28:19,043 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 5359 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5359 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 3408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:19,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5359 Valid, 3957 Invalid, 3408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 07:28:19,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-07-12 07:28:19,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 742. [2022-07-12 07:28:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 720 states have (on average 1.3444444444444446) internal successors, (968), 741 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 968 transitions. [2022-07-12 07:28:19,114 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 968 transitions. Word has length 95 [2022-07-12 07:28:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:19,114 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 968 transitions. [2022-07-12 07:28:19,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 968 transitions. [2022-07-12 07:28:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:28:19,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:19,116 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] [2022-07-12 07:28:19,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 07:28:19,117 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:19,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1071889132, now seen corresponding path program 1 times [2022-07-12 07:28:19,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:19,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518356567] [2022-07-12 07:28:19,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:19,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:19,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:19,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518356567] [2022-07-12 07:28:19,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518356567] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:19,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:19,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73564029] [2022-07-12 07:28:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:19,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:19,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:19,236 INFO L87 Difference]: Start difference. First operand 742 states and 968 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:20,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:20,288 INFO L93 Difference]: Finished difference Result 1227 states and 1596 transitions. [2022-07-12 07:28:20,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:20,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:28:20,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:20,293 INFO L225 Difference]: With dead ends: 1227 [2022-07-12 07:28:20,293 INFO L226 Difference]: Without dead ends: 1221 [2022-07-12 07:28:20,293 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 [2022-07-12 07:28:20,294 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 4951 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:20,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4951 Valid, 2460 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:20,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-07-12 07:28:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 742. [2022-07-12 07:28:20,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 720 states have (on average 1.3430555555555554) internal successors, (967), 741 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:20,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 967 transitions. [2022-07-12 07:28:20,367 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 967 transitions. Word has length 95 [2022-07-12 07:28:20,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:20,368 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 967 transitions. [2022-07-12 07:28:20,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:20,368 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 967 transitions. [2022-07-12 07:28:20,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:28:20,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:20,370 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] [2022-07-12 07:28:20,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 07:28:20,370 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:20,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash -485803098, now seen corresponding path program 1 times [2022-07-12 07:28:20,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:20,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735962115] [2022-07-12 07:28:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:20,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:20,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:20,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:20,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735962115] [2022-07-12 07:28:20,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735962115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:20,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:20,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:20,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127442672] [2022-07-12 07:28:20,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:20,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:20,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:20,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:20,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:20,533 INFO L87 Difference]: Start difference. First operand 742 states and 967 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:22,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:22,080 INFO L93 Difference]: Finished difference Result 1445 states and 1920 transitions. [2022-07-12 07:28:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:22,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:28:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:22,084 INFO L225 Difference]: With dead ends: 1445 [2022-07-12 07:28:22,085 INFO L226 Difference]: Without dead ends: 1236 [2022-07-12 07:28:22,085 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 [2022-07-12 07:28:22,086 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 4652 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4652 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:22,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4652 Valid, 3966 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 07:28:22,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-07-12 07:28:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 702. [2022-07-12 07:28:22,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3411764705882352) internal successors, (912), 701 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:22,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 912 transitions. [2022-07-12 07:28:22,160 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 912 transitions. Word has length 96 [2022-07-12 07:28:22,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:22,161 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 912 transitions. [2022-07-12 07:28:22,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:22,161 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 912 transitions. [2022-07-12 07:28:22,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:28:22,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:22,163 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] [2022-07-12 07:28:22,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 07:28:22,163 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:22,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:22,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1164032538, now seen corresponding path program 1 times [2022-07-12 07:28:22,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:22,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676802500] [2022-07-12 07:28:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:22,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:22,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:22,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676802500] [2022-07-12 07:28:22,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676802500] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:22,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:22,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:22,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844039306] [2022-07-12 07:28:22,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:22,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:22,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:22,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:22,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:22,281 INFO L87 Difference]: Start difference. First operand 702 states and 912 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:23,387 INFO L93 Difference]: Finished difference Result 1254 states and 1642 transitions. [2022-07-12 07:28:23,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:23,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:28:23,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:23,391 INFO L225 Difference]: With dead ends: 1254 [2022-07-12 07:28:23,391 INFO L226 Difference]: Without dead ends: 1176 [2022-07-12 07:28:23,392 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 [2022-07-12 07:28:23,392 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3844 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3844 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:23,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3844 Valid, 2361 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:23,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-07-12 07:28:23,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 702. [2022-07-12 07:28:23,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.339705882352941) internal successors, (911), 701 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:23,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 911 transitions. [2022-07-12 07:28:23,466 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 911 transitions. Word has length 96 [2022-07-12 07:28:23,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:23,466 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 911 transitions. [2022-07-12 07:28:23,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:23,467 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 911 transitions. [2022-07-12 07:28:23,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:28:23,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:23,469 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] [2022-07-12 07:28:23,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 07:28:23,469 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:23,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash -666876154, now seen corresponding path program 1 times [2022-07-12 07:28:23,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:23,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149763166] [2022-07-12 07:28:23,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:23,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:23,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:23,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149763166] [2022-07-12 07:28:23,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149763166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:23,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:23,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:23,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95879638] [2022-07-12 07:28:23,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:23,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:23,589 INFO L87 Difference]: Start difference. First operand 702 states and 911 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:24,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:24,757 INFO L93 Difference]: Finished difference Result 1254 states and 1640 transitions. [2022-07-12 07:28:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:24,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:28:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:24,760 INFO L225 Difference]: With dead ends: 1254 [2022-07-12 07:28:24,761 INFO L226 Difference]: Without dead ends: 1176 [2022-07-12 07:28:24,761 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 [2022-07-12 07:28:24,762 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 2638 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:24,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 2364 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:28:24,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-07-12 07:28:24,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 702. [2022-07-12 07:28:24,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.338235294117647) internal successors, (910), 701 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 910 transitions. [2022-07-12 07:28:24,847 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 910 transitions. Word has length 96 [2022-07-12 07:28:24,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:24,848 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 910 transitions. [2022-07-12 07:28:24,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 910 transitions. [2022-07-12 07:28:24,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:28:24,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:24,850 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] [2022-07-12 07:28:24,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 07:28:24,850 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:24,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:24,851 INFO L85 PathProgramCache]: Analyzing trace with hash 712350950, now seen corresponding path program 1 times [2022-07-12 07:28:24,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:24,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826556852] [2022-07-12 07:28:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:24,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:24,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:24,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826556852] [2022-07-12 07:28:24,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826556852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:24,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:24,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:24,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756486937] [2022-07-12 07:28:24,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:24,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:24,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:24,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:24,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:24,973 INFO L87 Difference]: Start difference. First operand 702 states and 910 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:26,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:26,079 INFO L93 Difference]: Finished difference Result 1297 states and 1706 transitions. [2022-07-12 07:28:26,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:26,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:28:26,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:26,083 INFO L225 Difference]: With dead ends: 1297 [2022-07-12 07:28:26,083 INFO L226 Difference]: Without dead ends: 1208 [2022-07-12 07:28:26,084 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 [2022-07-12 07:28:26,084 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2644 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:26,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2644 Valid, 2490 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:26,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-07-12 07:28:26,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 702. [2022-07-12 07:28:26,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3367647058823529) internal successors, (909), 701 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 909 transitions. [2022-07-12 07:28:26,179 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 909 transitions. Word has length 96 [2022-07-12 07:28:26,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:26,179 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 909 transitions. [2022-07-12 07:28:26,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:26,180 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 909 transitions. [2022-07-12 07:28:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:28:26,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:26,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:26,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 07:28:26,182 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:26,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:26,183 INFO L85 PathProgramCache]: Analyzing trace with hash -970429882, now seen corresponding path program 1 times [2022-07-12 07:28:26,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:26,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035658767] [2022-07-12 07:28:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:26,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:26,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:26,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:26,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035658767] [2022-07-12 07:28:26,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035658767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:26,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:26,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:26,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137445571] [2022-07-12 07:28:26,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:26,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:26,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:26,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:26,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:26,300 INFO L87 Difference]: Start difference. First operand 702 states and 909 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:27,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:27,346 INFO L93 Difference]: Finished difference Result 1293 states and 1702 transitions. [2022-07-12 07:28:27,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:27,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:28:27,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:27,350 INFO L225 Difference]: With dead ends: 1293 [2022-07-12 07:28:27,350 INFO L226 Difference]: Without dead ends: 1208 [2022-07-12 07:28:27,350 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 [2022-07-12 07:28:27,351 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3905 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3905 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:27,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3905 Valid, 2496 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:27,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-07-12 07:28:27,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 702. [2022-07-12 07:28:27,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3352941176470587) internal successors, (908), 701 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 908 transitions. [2022-07-12 07:28:27,453 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 908 transitions. Word has length 96 [2022-07-12 07:28:27,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:27,453 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 908 transitions. [2022-07-12 07:28:27,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 908 transitions. [2022-07-12 07:28:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:27,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:27,456 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] [2022-07-12 07:28:27,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 07:28:27,456 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:27,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:27,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1887012889, now seen corresponding path program 1 times [2022-07-12 07:28:27,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:27,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636556968] [2022-07-12 07:28:27,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:27,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:27,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:27,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636556968] [2022-07-12 07:28:27,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636556968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:27,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:27,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 07:28:27,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71140321] [2022-07-12 07:28:27,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:27,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 07:28:27,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 07:28:27,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:28:27,649 INFO L87 Difference]: Start difference. First operand 702 states and 908 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:29,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:29,653 INFO L93 Difference]: Finished difference Result 1667 states and 2226 transitions. [2022-07-12 07:28:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:28:29,654 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:29,657 INFO L225 Difference]: With dead ends: 1667 [2022-07-12 07:28:29,657 INFO L226 Difference]: Without dead ends: 1428 [2022-07-12 07:28:29,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2022-07-12 07:28:29,658 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 5124 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 3851 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5124 SdHoareTripleChecker+Valid, 5355 SdHoareTripleChecker+Invalid, 3900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:29,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5124 Valid, 5355 Invalid, 3900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3851 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:28:29,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-07-12 07:28:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 702. [2022-07-12 07:28:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3338235294117646) internal successors, (907), 701 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:29,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 907 transitions. [2022-07-12 07:28:29,753 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 907 transitions. Word has length 97 [2022-07-12 07:28:29,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:29,754 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 907 transitions. [2022-07-12 07:28:29,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:29,754 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 907 transitions. [2022-07-12 07:28:29,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:29,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:29,756 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] [2022-07-12 07:28:29,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 07:28:29,756 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:29,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:29,756 INFO L85 PathProgramCache]: Analyzing trace with hash -2083812519, now seen corresponding path program 1 times [2022-07-12 07:28:29,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:29,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54460684] [2022-07-12 07:28:29,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:29,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:29,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:29,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:29,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54460684] [2022-07-12 07:28:29,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54460684] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:29,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:29,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:29,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985510715] [2022-07-12 07:28:29,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:29,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:29,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:29,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:29,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:29,867 INFO L87 Difference]: Start difference. First operand 702 states and 907 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:30,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:30,957 INFO L93 Difference]: Finished difference Result 1182 states and 1528 transitions. [2022-07-12 07:28:30,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:30,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:30,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:30,961 INFO L225 Difference]: With dead ends: 1182 [2022-07-12 07:28:30,961 INFO L226 Difference]: Without dead ends: 1176 [2022-07-12 07:28:30,962 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 [2022-07-12 07:28:30,962 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 3772 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3772 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:30,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3772 Valid, 2424 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:30,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-07-12 07:28:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 702. [2022-07-12 07:28:31,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3323529411764705) internal successors, (906), 701 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 906 transitions. [2022-07-12 07:28:31,077 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 906 transitions. Word has length 97 [2022-07-12 07:28:31,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:31,078 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 906 transitions. [2022-07-12 07:28:31,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:31,078 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 906 transitions. [2022-07-12 07:28:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:31,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:31,079 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] [2022-07-12 07:28:31,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 07:28:31,080 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:31,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1112735129, now seen corresponding path program 1 times [2022-07-12 07:28:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:31,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306498015] [2022-07-12 07:28:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:31,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:31,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:31,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306498015] [2022-07-12 07:28:31,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306498015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:31,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:31,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:31,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745654097] [2022-07-12 07:28:31,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:31,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:31,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:31,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:31,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:31,220 INFO L87 Difference]: Start difference. First operand 702 states and 906 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:32,258 INFO L93 Difference]: Finished difference Result 1227 states and 1595 transitions. [2022-07-12 07:28:32,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:32,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:32,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:32,262 INFO L225 Difference]: With dead ends: 1227 [2022-07-12 07:28:32,262 INFO L226 Difference]: Without dead ends: 1208 [2022-07-12 07:28:32,262 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 [2022-07-12 07:28:32,263 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3936 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3936 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:32,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3936 Valid, 2483 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:28:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-07-12 07:28:32,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 702. [2022-07-12 07:28:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3308823529411764) internal successors, (905), 701 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:32,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 905 transitions. [2022-07-12 07:28:32,346 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 905 transitions. Word has length 97 [2022-07-12 07:28:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:32,347 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 905 transitions. [2022-07-12 07:28:32,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 905 transitions. [2022-07-12 07:28:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:32,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:32,349 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] [2022-07-12 07:28:32,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 07:28:32,349 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:32,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:32,350 INFO L85 PathProgramCache]: Analyzing trace with hash 759964249, now seen corresponding path program 1 times [2022-07-12 07:28:32,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:32,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933964708] [2022-07-12 07:28:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:32,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:32,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:32,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:32,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933964708] [2022-07-12 07:28:32,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933964708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:32,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:32,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:32,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349154634] [2022-07-12 07:28:32,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:32,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:32,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:32,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:32,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:32,466 INFO L87 Difference]: Start difference. First operand 702 states and 905 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:33,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:33,546 INFO L93 Difference]: Finished difference Result 1182 states and 1525 transitions. [2022-07-12 07:28:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:33,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:33,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:33,549 INFO L225 Difference]: With dead ends: 1182 [2022-07-12 07:28:33,549 INFO L226 Difference]: Without dead ends: 1176 [2022-07-12 07:28:33,549 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 [2022-07-12 07:28:33,550 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 3715 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3715 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:33,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3715 Valid, 2482 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:33,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-07-12 07:28:33,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 702. [2022-07-12 07:28:33,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3294117647058823) internal successors, (904), 701 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 904 transitions. [2022-07-12 07:28:33,634 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 904 transitions. Word has length 97 [2022-07-12 07:28:33,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:33,635 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 904 transitions. [2022-07-12 07:28:33,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:33,635 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 904 transitions. [2022-07-12 07:28:33,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:33,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:33,636 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] [2022-07-12 07:28:33,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 07:28:33,637 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:33,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:33,637 INFO L85 PathProgramCache]: Analyzing trace with hash -639309095, now seen corresponding path program 1 times [2022-07-12 07:28:33,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:33,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883925033] [2022-07-12 07:28:33,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:33,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:33,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:33,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883925033] [2022-07-12 07:28:33,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883925033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:33,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:33,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:33,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523130115] [2022-07-12 07:28:33,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:33,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:33,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:33,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:33,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:33,752 INFO L87 Difference]: Start difference. First operand 702 states and 904 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:34,815 INFO L93 Difference]: Finished difference Result 1297 states and 1697 transitions. [2022-07-12 07:28:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:34,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:34,819 INFO L225 Difference]: With dead ends: 1297 [2022-07-12 07:28:34,819 INFO L226 Difference]: Without dead ends: 1208 [2022-07-12 07:28:34,819 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 [2022-07-12 07:28:34,823 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3883 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3883 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:34,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3883 Valid, 2493 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:34,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-07-12 07:28:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 702. [2022-07-12 07:28:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 680 states have (on average 1.3279411764705882) internal successors, (903), 701 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 903 transitions. [2022-07-12 07:28:34,909 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 903 transitions. Word has length 97 [2022-07-12 07:28:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:34,910 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 903 transitions. [2022-07-12 07:28:34,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 903 transitions. [2022-07-12 07:28:34,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:34,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:34,911 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] [2022-07-12 07:28:34,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 07:28:34,912 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:34,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1525936807, now seen corresponding path program 1 times [2022-07-12 07:28:34,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:34,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969443316] [2022-07-12 07:28:34,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:34,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:35,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:35,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969443316] [2022-07-12 07:28:35,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969443316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:35,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:35,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:35,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172039804] [2022-07-12 07:28:35,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:35,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:35,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:35,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:35,028 INFO L87 Difference]: Start difference. First operand 702 states and 903 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:36,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:36,152 INFO L93 Difference]: Finished difference Result 1251 states and 1628 transitions. [2022-07-12 07:28:36,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:36,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:36,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:36,156 INFO L225 Difference]: With dead ends: 1251 [2022-07-12 07:28:36,156 INFO L226 Difference]: Without dead ends: 1175 [2022-07-12 07:28:36,163 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 [2022-07-12 07:28:36,167 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 3670 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:36,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 2521 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:36,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-07-12 07:28:36,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-07-12 07:28:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3269513991163475) internal successors, (901), 700 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 901 transitions. [2022-07-12 07:28:36,263 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 901 transitions. Word has length 97 [2022-07-12 07:28:36,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:36,263 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 901 transitions. [2022-07-12 07:28:36,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:36,263 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 901 transitions. [2022-07-12 07:28:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:36,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:36,265 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] [2022-07-12 07:28:36,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 07:28:36,265 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:36,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:36,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1939604839, now seen corresponding path program 1 times [2022-07-12 07:28:36,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:36,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070861833] [2022-07-12 07:28:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:36,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:36,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:36,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070861833] [2022-07-12 07:28:36,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070861833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:36,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:36,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:36,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077705538] [2022-07-12 07:28:36,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:36,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:36,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:36,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:36,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:36,374 INFO L87 Difference]: Start difference. First operand 701 states and 901 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:37,473 INFO L93 Difference]: Finished difference Result 1290 states and 1688 transitions. [2022-07-12 07:28:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:37,476 INFO L225 Difference]: With dead ends: 1290 [2022-07-12 07:28:37,476 INFO L226 Difference]: Without dead ends: 1206 [2022-07-12 07:28:37,477 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 [2022-07-12 07:28:37,477 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 4340 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:37,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4340 Valid, 2497 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:37,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-07-12 07:28:37,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-07-12 07:28:37,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3254786450662739) internal successors, (900), 700 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 900 transitions. [2022-07-12 07:28:37,566 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 900 transitions. Word has length 97 [2022-07-12 07:28:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:37,567 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 900 transitions. [2022-07-12 07:28:37,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 900 transitions. [2022-07-12 07:28:37,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:37,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:37,569 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] [2022-07-12 07:28:37,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 07:28:37,569 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:37,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:37,569 INFO L85 PathProgramCache]: Analyzing trace with hash -796530713, now seen corresponding path program 1 times [2022-07-12 07:28:37,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:37,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397633946] [2022-07-12 07:28:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:37,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:37,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:37,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397633946] [2022-07-12 07:28:37,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397633946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:37,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:37,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:37,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167163195] [2022-07-12 07:28:37,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:37,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:37,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:37,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:37,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:37,693 INFO L87 Difference]: Start difference. First operand 701 states and 900 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:39,048 INFO L93 Difference]: Finished difference Result 1363 states and 1803 transitions. [2022-07-12 07:28:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:39,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:39,051 INFO L225 Difference]: With dead ends: 1363 [2022-07-12 07:28:39,051 INFO L226 Difference]: Without dead ends: 1230 [2022-07-12 07:28:39,052 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 [2022-07-12 07:28:39,052 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 4062 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4062 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:39,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4062 Valid, 3627 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:28:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-07-12 07:28:39,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 701. [2022-07-12 07:28:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3240058910162003) internal successors, (899), 700 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:39,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 899 transitions. [2022-07-12 07:28:39,154 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 899 transitions. Word has length 97 [2022-07-12 07:28:39,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:39,155 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 899 transitions. [2022-07-12 07:28:39,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:39,155 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 899 transitions. [2022-07-12 07:28:39,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:39,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:39,156 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] [2022-07-12 07:28:39,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 07:28:39,156 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:39,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:39,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1267448231, now seen corresponding path program 1 times [2022-07-12 07:28:39,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:39,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491626237] [2022-07-12 07:28:39,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:39,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:39,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:39,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:39,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491626237] [2022-07-12 07:28:39,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491626237] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:39,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:39,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:39,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144980527] [2022-07-12 07:28:39,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:39,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:39,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:39,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:39,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:39,268 INFO L87 Difference]: Start difference. First operand 701 states and 899 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:40,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:40,352 INFO L93 Difference]: Finished difference Result 1295 states and 1691 transitions. [2022-07-12 07:28:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:40,353 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:40,355 INFO L225 Difference]: With dead ends: 1295 [2022-07-12 07:28:40,355 INFO L226 Difference]: Without dead ends: 1206 [2022-07-12 07:28:40,356 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 [2022-07-12 07:28:40,356 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2587 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:40,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 2491 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:28:40,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-07-12 07:28:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-07-12 07:28:40,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3225331369661266) internal successors, (898), 700 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:40,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 898 transitions. [2022-07-12 07:28:40,455 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 898 transitions. Word has length 97 [2022-07-12 07:28:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:40,455 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 898 transitions. [2022-07-12 07:28:40,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:40,455 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 898 transitions. [2022-07-12 07:28:40,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:40,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:40,456 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] [2022-07-12 07:28:40,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 07:28:40,456 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:40,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1063692153, now seen corresponding path program 1 times [2022-07-12 07:28:40,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:40,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590211327] [2022-07-12 07:28:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:40,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:40,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:40,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590211327] [2022-07-12 07:28:40,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590211327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:40,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:40,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:40,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415403194] [2022-07-12 07:28:40,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:40,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:40,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:40,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:40,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:40,564 INFO L87 Difference]: Start difference. First operand 701 states and 898 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:41,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:41,582 INFO L93 Difference]: Finished difference Result 1300 states and 1694 transitions. [2022-07-12 07:28:41,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:41,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:41,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:41,584 INFO L225 Difference]: With dead ends: 1300 [2022-07-12 07:28:41,584 INFO L226 Difference]: Without dead ends: 1206 [2022-07-12 07:28:41,585 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 [2022-07-12 07:28:41,585 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4371 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4371 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:41,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4371 Valid, 2295 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:28:41,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-07-12 07:28:41,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-07-12 07:28:41,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.321060382916053) internal successors, (897), 700 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 897 transitions. [2022-07-12 07:28:41,684 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 897 transitions. Word has length 97 [2022-07-12 07:28:41,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:41,684 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 897 transitions. [2022-07-12 07:28:41,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:41,684 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 897 transitions. [2022-07-12 07:28:41,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:41,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:41,686 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] [2022-07-12 07:28:41,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 07:28:41,686 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:41,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:41,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1222618809, now seen corresponding path program 1 times [2022-07-12 07:28:41,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:41,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48541330] [2022-07-12 07:28:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:41,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:41,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:41,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:41,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48541330] [2022-07-12 07:28:41,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48541330] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:41,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:41,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:41,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519873408] [2022-07-12 07:28:41,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:41,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:41,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:41,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:41,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:41,789 INFO L87 Difference]: Start difference. First operand 701 states and 897 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:42,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:42,988 INFO L93 Difference]: Finished difference Result 1256 states and 1628 transitions. [2022-07-12 07:28:42,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:42,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:42,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:42,990 INFO L225 Difference]: With dead ends: 1256 [2022-07-12 07:28:42,990 INFO L226 Difference]: Without dead ends: 1175 [2022-07-12 07:28:42,991 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 [2022-07-12 07:28:42,991 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 3555 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3555 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:42,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3555 Valid, 2649 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:42,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-07-12 07:28:43,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-07-12 07:28:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3195876288659794) internal successors, (896), 700 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:43,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 896 transitions. [2022-07-12 07:28:43,104 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 896 transitions. Word has length 97 [2022-07-12 07:28:43,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:43,104 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 896 transitions. [2022-07-12 07:28:43,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:43,104 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 896 transitions. [2022-07-12 07:28:43,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:43,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:43,105 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] [2022-07-12 07:28:43,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 07:28:43,106 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:43,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:43,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1888632039, now seen corresponding path program 1 times [2022-07-12 07:28:43,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:43,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136049093] [2022-07-12 07:28:43,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:43,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:43,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:43,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:43,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136049093] [2022-07-12 07:28:43,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136049093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:43,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:43,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:43,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929496015] [2022-07-12 07:28:43,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:43,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:43,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:43,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:43,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:43,209 INFO L87 Difference]: Start difference. First operand 701 states and 896 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:44,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:44,391 INFO L93 Difference]: Finished difference Result 1256 states and 1627 transitions. [2022-07-12 07:28:44,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:44,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:44,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:44,394 INFO L225 Difference]: With dead ends: 1256 [2022-07-12 07:28:44,394 INFO L226 Difference]: Without dead ends: 1175 [2022-07-12 07:28:44,395 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 [2022-07-12 07:28:44,395 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 4637 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:44,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4637 Valid, 2646 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-07-12 07:28:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-07-12 07:28:44,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3181148748159057) internal successors, (895), 700 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 895 transitions. [2022-07-12 07:28:44,502 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 895 transitions. Word has length 97 [2022-07-12 07:28:44,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:44,503 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 895 transitions. [2022-07-12 07:28:44,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 895 transitions. [2022-07-12 07:28:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:44,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:44,504 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] [2022-07-12 07:28:44,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 07:28:44,504 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:44,504 INFO L85 PathProgramCache]: Analyzing trace with hash -983974751, now seen corresponding path program 1 times [2022-07-12 07:28:44,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:44,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669351355] [2022-07-12 07:28:44,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:44,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:44,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:44,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:44,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669351355] [2022-07-12 07:28:44,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669351355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:44,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:44,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:44,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639979100] [2022-07-12 07:28:44,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:44,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:44,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:44,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:44,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:44,606 INFO L87 Difference]: Start difference. First operand 701 states and 895 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:45,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:45,748 INFO L93 Difference]: Finished difference Result 1253 states and 1622 transitions. [2022-07-12 07:28:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:45,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:45,751 INFO L225 Difference]: With dead ends: 1253 [2022-07-12 07:28:45,751 INFO L226 Difference]: Without dead ends: 1175 [2022-07-12 07:28:45,751 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 [2022-07-12 07:28:45,752 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 2472 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:45,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 2653 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:45,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-07-12 07:28:45,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-07-12 07:28:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.316642120765832) internal successors, (894), 700 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:45,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 894 transitions. [2022-07-12 07:28:45,874 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 894 transitions. Word has length 98 [2022-07-12 07:28:45,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:45,874 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 894 transitions. [2022-07-12 07:28:45,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:45,874 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 894 transitions. [2022-07-12 07:28:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:45,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:45,875 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] [2022-07-12 07:28:45,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 07:28:45,876 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:45,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash -594891711, now seen corresponding path program 1 times [2022-07-12 07:28:45,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:45,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69806445] [2022-07-12 07:28:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:45,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:45,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:45,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69806445] [2022-07-12 07:28:45,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69806445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:45,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:45,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:45,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319325346] [2022-07-12 07:28:45,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:45,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:45,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:45,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:45,984 INFO L87 Difference]: Start difference. First operand 701 states and 894 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:47,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:47,150 INFO L93 Difference]: Finished difference Result 1295 states and 1680 transitions. [2022-07-12 07:28:47,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:47,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:47,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:47,152 INFO L225 Difference]: With dead ends: 1295 [2022-07-12 07:28:47,152 INFO L226 Difference]: Without dead ends: 1206 [2022-07-12 07:28:47,153 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 [2022-07-12 07:28:47,153 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3865 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3865 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:47,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3865 Valid, 2490 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-07-12 07:28:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-07-12 07:28:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3151693667157585) internal successors, (893), 700 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 893 transitions. [2022-07-12 07:28:47,257 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 893 transitions. Word has length 98 [2022-07-12 07:28:47,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:47,258 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 893 transitions. [2022-07-12 07:28:47,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:47,258 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 893 transitions. [2022-07-12 07:28:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:47,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:47,259 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] [2022-07-12 07:28:47,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-12 07:28:47,259 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:47,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:47,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1325336959, now seen corresponding path program 1 times [2022-07-12 07:28:47,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:47,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577498657] [2022-07-12 07:28:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:47,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:47,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:47,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577498657] [2022-07-12 07:28:47,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577498657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:47,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:47,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:47,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740573078] [2022-07-12 07:28:47,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:47,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:47,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:47,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:47,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:47,389 INFO L87 Difference]: Start difference. First operand 701 states and 893 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:48,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:48,521 INFO L93 Difference]: Finished difference Result 1291 states and 1676 transitions. [2022-07-12 07:28:48,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:48,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:48,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:48,523 INFO L225 Difference]: With dead ends: 1291 [2022-07-12 07:28:48,523 INFO L226 Difference]: Without dead ends: 1206 [2022-07-12 07:28:48,524 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 [2022-07-12 07:28:48,524 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3831 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3831 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:48,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3831 Valid, 2496 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:48,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-07-12 07:28:48,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-07-12 07:28:48,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3136966126656848) internal successors, (892), 700 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 892 transitions. [2022-07-12 07:28:48,640 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 892 transitions. Word has length 98 [2022-07-12 07:28:48,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:48,641 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 892 transitions. [2022-07-12 07:28:48,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:48,641 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 892 transitions. [2022-07-12 07:28:48,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:48,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:48,642 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] [2022-07-12 07:28:48,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-12 07:28:48,642 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:48,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:48,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1660924641, now seen corresponding path program 1 times [2022-07-12 07:28:48,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:48,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233774135] [2022-07-12 07:28:48,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:48,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:48,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:48,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233774135] [2022-07-12 07:28:48,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233774135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:48,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:48,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:48,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986455142] [2022-07-12 07:28:48,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:48,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:48,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:48,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:48,754 INFO L87 Difference]: Start difference. First operand 701 states and 892 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:50,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:50,084 INFO L93 Difference]: Finished difference Result 1377 states and 1803 transitions. [2022-07-12 07:28:50,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:50,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:50,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:50,087 INFO L225 Difference]: With dead ends: 1377 [2022-07-12 07:28:50,087 INFO L226 Difference]: Without dead ends: 1230 [2022-07-12 07:28:50,087 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 [2022-07-12 07:28:50,088 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 4275 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:50,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4275 Valid, 3463 Invalid, 2318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:28:50,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-07-12 07:28:50,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 701. [2022-07-12 07:28:50,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3122238586156112) internal successors, (891), 700 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:50,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 891 transitions. [2022-07-12 07:28:50,210 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 891 transitions. Word has length 98 [2022-07-12 07:28:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:50,210 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 891 transitions. [2022-07-12 07:28:50,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:50,210 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 891 transitions. [2022-07-12 07:28:50,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:50,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:50,211 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] [2022-07-12 07:28:50,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 07:28:50,212 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:50,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:50,212 INFO L85 PathProgramCache]: Analyzing trace with hash -743182655, now seen corresponding path program 1 times [2022-07-12 07:28:50,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:50,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889025120] [2022-07-12 07:28:50,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:50,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:50,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:50,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:50,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889025120] [2022-07-12 07:28:50,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889025120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:50,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:50,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:50,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437846898] [2022-07-12 07:28:50,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:50,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:50,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:50,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:50,318 INFO L87 Difference]: Start difference. First operand 701 states and 891 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:51,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:51,476 INFO L93 Difference]: Finished difference Result 1291 states and 1673 transitions. [2022-07-12 07:28:51,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:51,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:51,478 INFO L225 Difference]: With dead ends: 1291 [2022-07-12 07:28:51,478 INFO L226 Difference]: Without dead ends: 1206 [2022-07-12 07:28:51,479 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 [2022-07-12 07:28:51,479 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3847 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3847 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:51,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3847 Valid, 2493 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:51,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-07-12 07:28:51,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 701. [2022-07-12 07:28:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.3107511045655376) internal successors, (890), 700 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 890 transitions. [2022-07-12 07:28:51,592 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 890 transitions. Word has length 98 [2022-07-12 07:28:51,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:51,592 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 890 transitions. [2022-07-12 07:28:51,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:51,592 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 890 transitions. [2022-07-12 07:28:51,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:51,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:51,593 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] [2022-07-12 07:28:51,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 07:28:51,593 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:51,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:51,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1926953537, now seen corresponding path program 1 times [2022-07-12 07:28:51,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:51,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280433907] [2022-07-12 07:28:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:51,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:51,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:51,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280433907] [2022-07-12 07:28:51,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280433907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:51,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:51,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:51,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487686023] [2022-07-12 07:28:51,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:51,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:51,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:51,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:51,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:51,747 INFO L87 Difference]: Start difference. First operand 701 states and 890 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:53,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:53,117 INFO L93 Difference]: Finished difference Result 1251 states and 1615 transitions. [2022-07-12 07:28:53,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:53,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:53,120 INFO L225 Difference]: With dead ends: 1251 [2022-07-12 07:28:53,120 INFO L226 Difference]: Without dead ends: 1175 [2022-07-12 07:28:53,120 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 [2022-07-12 07:28:53,121 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 4052 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4052 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:53,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4052 Valid, 3382 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:28:53,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-07-12 07:28:53,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 701. [2022-07-12 07:28:53,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 679 states have (on average 1.309278350515464) internal successors, (889), 700 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 889 transitions. [2022-07-12 07:28:53,236 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 889 transitions. Word has length 98 [2022-07-12 07:28:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:53,236 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 889 transitions. [2022-07-12 07:28:53,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 889 transitions. [2022-07-12 07:28:53,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:53,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:53,238 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] [2022-07-12 07:28:53,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-12 07:28:53,238 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:53,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1181810303, now seen corresponding path program 1 times [2022-07-12 07:28:53,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:53,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689308582] [2022-07-12 07:28:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:53,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:53,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:53,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689308582] [2022-07-12 07:28:53,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689308582] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:53,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:53,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:53,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648220136] [2022-07-12 07:28:53,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:53,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:53,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:53,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:53,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:53,424 INFO L87 Difference]: Start difference. First operand 701 states and 889 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:56,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:56,065 INFO L93 Difference]: Finished difference Result 2065 states and 2792 transitions. [2022-07-12 07:28:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:56,066 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:56,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:56,068 INFO L225 Difference]: With dead ends: 2065 [2022-07-12 07:28:56,068 INFO L226 Difference]: Without dead ends: 1918 [2022-07-12 07:28:56,069 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 [2022-07-12 07:28:56,069 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 7726 mSDsluCounter, 3671 mSDsCounter, 0 mSdLazyCounter, 3257 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7726 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 3817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 3257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:56,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7726 Valid, 4693 Invalid, 3817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 3257 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 07:28:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-07-12 07:28:56,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 706. [2022-07-12 07:28:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3070175438596492) internal successors, (894), 705 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 894 transitions. [2022-07-12 07:28:56,201 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 894 transitions. Word has length 98 [2022-07-12 07:28:56,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:56,201 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 894 transitions. [2022-07-12 07:28:56,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:56,201 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 894 transitions. [2022-07-12 07:28:56,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:56,202 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:56,202 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] [2022-07-12 07:28:56,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-12 07:28:56,202 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:56,203 INFO L85 PathProgramCache]: Analyzing trace with hash -218628127, now seen corresponding path program 1 times [2022-07-12 07:28:56,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:56,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431123632] [2022-07-12 07:28:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:56,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:56,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:56,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431123632] [2022-07-12 07:28:56,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431123632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:56,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:56,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:56,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547180614] [2022-07-12 07:28:56,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:56,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:56,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:56,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:56,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:56,306 INFO L87 Difference]: Start difference. First operand 706 states and 894 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:57,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:57,525 INFO L93 Difference]: Finished difference Result 1258 states and 1621 transitions. [2022-07-12 07:28:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:57,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:57,528 INFO L225 Difference]: With dead ends: 1258 [2022-07-12 07:28:57,529 INFO L226 Difference]: Without dead ends: 1180 [2022-07-12 07:28:57,529 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 [2022-07-12 07:28:57,530 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2411 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:57,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 2742 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:28:57,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-07-12 07:28:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 706. [2022-07-12 07:28:57,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3055555555555556) internal successors, (893), 705 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:57,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 893 transitions. [2022-07-12 07:28:57,730 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 893 transitions. Word has length 98 [2022-07-12 07:28:57,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:57,730 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 893 transitions. [2022-07-12 07:28:57,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 893 transitions. [2022-07-12 07:28:57,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:57,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:57,732 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] [2022-07-12 07:28:57,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-12 07:28:57,732 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:57,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:57,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1160598977, now seen corresponding path program 1 times [2022-07-12 07:28:57,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:57,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200671814] [2022-07-12 07:28:57,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:57,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:57,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200671814] [2022-07-12 07:28:57,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200671814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:57,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:57,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:57,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131393674] [2022-07-12 07:28:57,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:57,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:57,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:57,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:57,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:57,844 INFO L87 Difference]: Start difference. First operand 706 states and 893 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:59,029 INFO L93 Difference]: Finished difference Result 1300 states and 1677 transitions. [2022-07-12 07:28:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:59,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:28:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:59,032 INFO L225 Difference]: With dead ends: 1300 [2022-07-12 07:28:59,032 INFO L226 Difference]: Without dead ends: 1211 [2022-07-12 07:28:59,032 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 [2022-07-12 07:28:59,032 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2584 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:59,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2584 Valid, 2488 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:28:59,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2022-07-12 07:28:59,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 706. [2022-07-12 07:28:59,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.304093567251462) internal successors, (892), 705 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:59,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 892 transitions. [2022-07-12 07:28:59,170 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 892 transitions. Word has length 98 [2022-07-12 07:28:59,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:59,170 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 892 transitions. [2022-07-12 07:28:59,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:59,170 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 892 transitions. [2022-07-12 07:28:59,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:28:59,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:59,171 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] [2022-07-12 07:28:59,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-12 07:28:59,171 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:59,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:59,172 INFO L85 PathProgramCache]: Analyzing trace with hash -542784863, now seen corresponding path program 1 times [2022-07-12 07:28:59,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:59,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414155586] [2022-07-12 07:28:59,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:59,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:59,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:59,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414155586] [2022-07-12 07:28:59,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414155586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:59,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:59,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:59,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104741587] [2022-07-12 07:28:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:59,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:59,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:59,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:59,288 INFO L87 Difference]: Start difference. First operand 706 states and 892 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:00,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:00,472 INFO L93 Difference]: Finished difference Result 1296 states and 1672 transitions. [2022-07-12 07:29:00,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:00,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:00,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:00,474 INFO L225 Difference]: With dead ends: 1296 [2022-07-12 07:29:00,474 INFO L226 Difference]: Without dead ends: 1211 [2022-07-12 07:29:00,475 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 [2022-07-12 07:29:00,475 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 5066 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:00,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5066 Valid, 2495 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:29:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2022-07-12 07:29:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 706. [2022-07-12 07:29:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.3026315789473684) internal successors, (891), 705 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:00,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 891 transitions. [2022-07-12 07:29:00,612 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 891 transitions. Word has length 98 [2022-07-12 07:29:00,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:00,612 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 891 transitions. [2022-07-12 07:29:00,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:00,612 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 891 transitions. [2022-07-12 07:29:00,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:00,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:00,613 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] [2022-07-12 07:29:00,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-12 07:29:00,614 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:00,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:00,614 INFO L85 PathProgramCache]: Analyzing trace with hash -308070434, now seen corresponding path program 1 times [2022-07-12 07:29:00,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:00,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027275793] [2022-07-12 07:29:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:00,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:00,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:00,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027275793] [2022-07-12 07:29:00,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027275793] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:00,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:00,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:29:00,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260236155] [2022-07-12 07:29:00,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:00,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:29:00,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:00,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:29:00,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:29:00,808 INFO L87 Difference]: Start difference. First operand 706 states and 891 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:03,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:03,371 INFO L93 Difference]: Finished difference Result 2095 states and 2817 transitions. [2022-07-12 07:29:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:29:03,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:03,375 INFO L225 Difference]: With dead ends: 2095 [2022-07-12 07:29:03,375 INFO L226 Difference]: Without dead ends: 1933 [2022-07-12 07:29:03,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:29:03,376 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 9064 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 2780 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9064 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 2780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:03,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9064 Valid, 4030 Invalid, 3414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 2780 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:29:03,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2022-07-12 07:29:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 711. [2022-07-12 07:29:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.3004354136429608) internal successors, (896), 710 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 896 transitions. [2022-07-12 07:29:03,603 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 896 transitions. Word has length 99 [2022-07-12 07:29:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:03,604 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 896 transitions. [2022-07-12 07:29:03,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:03,604 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 896 transitions. [2022-07-12 07:29:03,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:03,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:03,605 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] [2022-07-12 07:29:03,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-12 07:29:03,606 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:03,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash 234210846, now seen corresponding path program 1 times [2022-07-12 07:29:03,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:03,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745530107] [2022-07-12 07:29:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:03,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:03,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:03,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745530107] [2022-07-12 07:29:03,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745530107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:03,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:03,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:03,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627609110] [2022-07-12 07:29:03,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:03,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:03,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:03,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:03,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:03,723 INFO L87 Difference]: Start difference. First operand 711 states and 896 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:04,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:04,844 INFO L93 Difference]: Finished difference Result 1310 states and 1684 transitions. [2022-07-12 07:29:04,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:04,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:04,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:04,847 INFO L225 Difference]: With dead ends: 1310 [2022-07-12 07:29:04,847 INFO L226 Difference]: Without dead ends: 1216 [2022-07-12 07:29:04,847 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 [2022-07-12 07:29:04,848 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4872 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:04,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4872 Valid, 2295 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:29:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-07-12 07:29:05,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 711. [2022-07-12 07:29:05,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.2989840348330914) internal successors, (895), 710 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:05,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 895 transitions. [2022-07-12 07:29:05,011 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 895 transitions. Word has length 99 [2022-07-12 07:29:05,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:05,011 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 895 transitions. [2022-07-12 07:29:05,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:05,012 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 895 transitions. [2022-07-12 07:29:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:05,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:05,013 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] [2022-07-12 07:29:05,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-12 07:29:05,013 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash -118560034, now seen corresponding path program 1 times [2022-07-12 07:29:05,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:05,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627875403] [2022-07-12 07:29:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:05,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:05,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:05,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627875403] [2022-07-12 07:29:05,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627875403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:05,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:05,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:05,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624591006] [2022-07-12 07:29:05,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:05,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:05,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:05,117 INFO L87 Difference]: Start difference. First operand 711 states and 895 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:06,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:06,470 INFO L93 Difference]: Finished difference Result 1266 states and 1625 transitions. [2022-07-12 07:29:06,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:06,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:06,472 INFO L225 Difference]: With dead ends: 1266 [2022-07-12 07:29:06,473 INFO L226 Difference]: Without dead ends: 1185 [2022-07-12 07:29:06,473 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 [2022-07-12 07:29:06,474 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 2351 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:06,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 2875 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:06,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-07-12 07:29:06,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 711. [2022-07-12 07:29:06,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.297532656023222) internal successors, (894), 710 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 894 transitions. [2022-07-12 07:29:06,682 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 894 transitions. Word has length 99 [2022-07-12 07:29:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:06,682 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 894 transitions. [2022-07-12 07:29:06,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 894 transitions. [2022-07-12 07:29:06,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:06,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:06,684 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] [2022-07-12 07:29:06,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-12 07:29:06,684 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:06,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:06,685 INFO L85 PathProgramCache]: Analyzing trace with hash -271572002, now seen corresponding path program 1 times [2022-07-12 07:29:06,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:06,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430699212] [2022-07-12 07:29:06,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:06,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:06,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:06,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430699212] [2022-07-12 07:29:06,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430699212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:06,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:06,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:06,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094780736] [2022-07-12 07:29:06,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:06,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:06,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:06,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:06,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:06,790 INFO L87 Difference]: Start difference. First operand 711 states and 894 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:07,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:07,992 INFO L93 Difference]: Finished difference Result 1305 states and 1676 transitions. [2022-07-12 07:29:07,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:07,992 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:07,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:07,994 INFO L225 Difference]: With dead ends: 1305 [2022-07-12 07:29:07,994 INFO L226 Difference]: Without dead ends: 1216 [2022-07-12 07:29:07,994 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 [2022-07-12 07:29:07,995 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 5052 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5052 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:07,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5052 Valid, 2491 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:29:07,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-07-12 07:29:08,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 711. [2022-07-12 07:29:08,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 689 states have (on average 1.2960812772133528) internal successors, (893), 710 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:08,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 893 transitions. [2022-07-12 07:29:08,146 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 893 transitions. Word has length 99 [2022-07-12 07:29:08,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:08,146 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 893 transitions. [2022-07-12 07:29:08,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 893 transitions. [2022-07-12 07:29:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:08,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:08,148 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] [2022-07-12 07:29:08,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-12 07:29:08,148 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:08,148 INFO L85 PathProgramCache]: Analyzing trace with hash -370973194, now seen corresponding path program 1 times [2022-07-12 07:29:08,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:08,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187944043] [2022-07-12 07:29:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:08,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:08,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187944043] [2022-07-12 07:29:08,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187944043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:08,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:08,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:08,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511851946] [2022-07-12 07:29:08,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:08,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:08,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:08,273 INFO L87 Difference]: Start difference. First operand 711 states and 893 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:09,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:09,738 INFO L93 Difference]: Finished difference Result 1260 states and 1617 transitions. [2022-07-12 07:29:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:09,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:09,740 INFO L225 Difference]: With dead ends: 1260 [2022-07-12 07:29:09,740 INFO L226 Difference]: Without dead ends: 1184 [2022-07-12 07:29:09,740 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 [2022-07-12 07:29:09,740 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 3940 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3940 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:09,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3940 Valid, 3557 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:29:09,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-07-12 07:29:09,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 710. [2022-07-12 07:29:09,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 688 states have (on average 1.2950581395348837) internal successors, (891), 709 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:09,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 891 transitions. [2022-07-12 07:29:09,905 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 891 transitions. Word has length 99 [2022-07-12 07:29:09,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:09,905 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 891 transitions. [2022-07-12 07:29:09,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:09,905 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 891 transitions. [2022-07-12 07:29:09,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:09,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:09,907 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] [2022-07-12 07:29:09,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-12 07:29:09,907 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash 193533868, now seen corresponding path program 1 times [2022-07-12 07:29:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637366820] [2022-07-12 07:29:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:10,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:10,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637366820] [2022-07-12 07:29:10,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637366820] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:10,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:10,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:10,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383178183] [2022-07-12 07:29:10,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:10,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:10,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:10,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:10,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:10,017 INFO L87 Difference]: Start difference. First operand 710 states and 891 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:11,600 INFO L93 Difference]: Finished difference Result 1259 states and 1615 transitions. [2022-07-12 07:29:11,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:11,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:11,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:11,602 INFO L225 Difference]: With dead ends: 1259 [2022-07-12 07:29:11,602 INFO L226 Difference]: Without dead ends: 1183 [2022-07-12 07:29:11,602 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 [2022-07-12 07:29:11,602 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 3823 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:11,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3823 Valid, 3823 Invalid, 2746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 07:29:11,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-07-12 07:29:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 709. [2022-07-12 07:29:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 687 states have (on average 1.2940320232896652) internal successors, (889), 708 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:11,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 889 transitions. [2022-07-12 07:29:11,759 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 889 transitions. Word has length 99 [2022-07-12 07:29:11,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:11,759 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 889 transitions. [2022-07-12 07:29:11,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:11,759 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 889 transitions. [2022-07-12 07:29:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:11,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:11,760 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] [2022-07-12 07:29:11,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-12 07:29:11,760 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:11,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:11,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1049556564, now seen corresponding path program 1 times [2022-07-12 07:29:11,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:11,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380900251] [2022-07-12 07:29:11,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:11,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:11,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:11,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380900251] [2022-07-12 07:29:11,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380900251] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:11,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:11,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:11,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869327252] [2022-07-12 07:29:11,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:11,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:11,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:11,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:11,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:11,860 INFO L87 Difference]: Start difference. First operand 709 states and 889 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:13,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:13,276 INFO L93 Difference]: Finished difference Result 1257 states and 1612 transitions. [2022-07-12 07:29:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:13,276 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:13,278 INFO L225 Difference]: With dead ends: 1257 [2022-07-12 07:29:13,278 INFO L226 Difference]: Without dead ends: 1181 [2022-07-12 07:29:13,278 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 [2022-07-12 07:29:13,279 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 3162 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:13,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 3084 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:13,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-07-12 07:29:13,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 708. [2022-07-12 07:29:13,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 686 states have (on average 1.293002915451895) internal successors, (887), 707 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 887 transitions. [2022-07-12 07:29:13,438 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 887 transitions. Word has length 99 [2022-07-12 07:29:13,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:13,438 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 887 transitions. [2022-07-12 07:29:13,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 887 transitions. [2022-07-12 07:29:13,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:13,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:13,439 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] [2022-07-12 07:29:13,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-12 07:29:13,439 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:13,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:13,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1664921314, now seen corresponding path program 1 times [2022-07-12 07:29:13,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:13,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964190295] [2022-07-12 07:29:13,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:13,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:13,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:13,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:13,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964190295] [2022-07-12 07:29:13,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964190295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:13,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:13,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:29:13,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376892653] [2022-07-12 07:29:13,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:13,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:29:13,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:13,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:29:13,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:29:13,778 INFO L87 Difference]: Start difference. First operand 708 states and 887 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:16,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:16,018 INFO L93 Difference]: Finished difference Result 2352 states and 3088 transitions. [2022-07-12 07:29:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:29:16,019 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:16,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:16,021 INFO L225 Difference]: With dead ends: 2352 [2022-07-12 07:29:16,021 INFO L226 Difference]: Without dead ends: 2259 [2022-07-12 07:29:16,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:29:16,022 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 7369 mSDsluCounter, 6415 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7369 SdHoareTripleChecker+Valid, 7566 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:16,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7369 Valid, 7566 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:29:16,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2022-07-12 07:29:16,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 690. [2022-07-12 07:29:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2904191616766467) internal successors, (862), 689 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:16,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 862 transitions. [2022-07-12 07:29:16,209 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 862 transitions. Word has length 99 [2022-07-12 07:29:16,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:16,209 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 862 transitions. [2022-07-12 07:29:16,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 862 transitions. [2022-07-12 07:29:16,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:29:16,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:16,211 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] [2022-07-12 07:29:16,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-12 07:29:16,211 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:16,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:16,212 INFO L85 PathProgramCache]: Analyzing trace with hash 760861535, now seen corresponding path program 1 times [2022-07-12 07:29:16,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:16,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871597007] [2022-07-12 07:29:16,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:16,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:16,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:16,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871597007] [2022-07-12 07:29:16,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871597007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:16,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:16,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:16,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58157] [2022-07-12 07:29:16,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:16,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:16,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:16,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:16,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:16,319 INFO L87 Difference]: Start difference. First operand 690 states and 862 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:17,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:17,900 INFO L93 Difference]: Finished difference Result 1356 states and 1758 transitions. [2022-07-12 07:29:17,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:17,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:29:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:17,902 INFO L225 Difference]: With dead ends: 1356 [2022-07-12 07:29:17,902 INFO L226 Difference]: Without dead ends: 1209 [2022-07-12 07:29:17,902 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 [2022-07-12 07:29:17,903 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 3106 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:17,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 3375 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2022-07-12 07:29:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 685. [2022-07-12 07:29:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2911010558069382) internal successors, (856), 684 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:18,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 856 transitions. [2022-07-12 07:29:18,103 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 856 transitions. Word has length 99 [2022-07-12 07:29:18,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:18,104 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 856 transitions. [2022-07-12 07:29:18,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:18,104 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 856 transitions. [2022-07-12 07:29:18,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:18,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:18,106 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] [2022-07-12 07:29:18,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-12 07:29:18,106 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:18,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:18,106 INFO L85 PathProgramCache]: Analyzing trace with hash 193950012, now seen corresponding path program 1 times [2022-07-12 07:29:18,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:18,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126088292] [2022-07-12 07:29:18,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:18,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:18,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:18,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126088292] [2022-07-12 07:29:18,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126088292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:18,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:18,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:18,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854316128] [2022-07-12 07:29:18,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:18,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:18,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:18,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:18,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:18,219 INFO L87 Difference]: Start difference. First operand 685 states and 856 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:19,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:19,923 INFO L93 Difference]: Finished difference Result 1319 states and 1700 transitions. [2022-07-12 07:29:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:19,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:19,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:19,924 INFO L225 Difference]: With dead ends: 1319 [2022-07-12 07:29:19,924 INFO L226 Difference]: Without dead ends: 1206 [2022-07-12 07:29:19,925 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 [2022-07-12 07:29:19,926 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 4436 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4436 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:19,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4436 Valid, 2969 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:19,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-07-12 07:29:20,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 685. [2022-07-12 07:29:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2895927601809956) internal successors, (855), 684 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 855 transitions. [2022-07-12 07:29:20,125 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 855 transitions. Word has length 100 [2022-07-12 07:29:20,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:20,125 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 855 transitions. [2022-07-12 07:29:20,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:20,126 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 855 transitions. [2022-07-12 07:29:20,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:20,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:20,126 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] [2022-07-12 07:29:20,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-12 07:29:20,127 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:20,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:20,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1060069596, now seen corresponding path program 1 times [2022-07-12 07:29:20,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:20,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009555592] [2022-07-12 07:29:20,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:20,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:20,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:20,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009555592] [2022-07-12 07:29:20,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009555592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:20,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:20,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:20,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652083899] [2022-07-12 07:29:20,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:20,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:20,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:20,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:20,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:20,224 INFO L87 Difference]: Start difference. First operand 685 states and 855 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:21,628 INFO L93 Difference]: Finished difference Result 1227 states and 1569 transitions. [2022-07-12 07:29:21,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:21,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:21,630 INFO L225 Difference]: With dead ends: 1227 [2022-07-12 07:29:21,630 INFO L226 Difference]: Without dead ends: 1149 [2022-07-12 07:29:21,630 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 [2022-07-12 07:29:21,630 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 2253 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:21,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2253 Valid, 2830 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:21,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2022-07-12 07:29:21,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 685. [2022-07-12 07:29:21,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2880844645550529) internal successors, (854), 684 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 854 transitions. [2022-07-12 07:29:21,823 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 854 transitions. Word has length 100 [2022-07-12 07:29:21,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:21,824 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 854 transitions. [2022-07-12 07:29:21,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 854 transitions. [2022-07-12 07:29:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:21,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:21,825 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] [2022-07-12 07:29:21,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-12 07:29:21,825 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:21,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:21,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1372751492, now seen corresponding path program 1 times [2022-07-12 07:29:21,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:21,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747737447] [2022-07-12 07:29:21,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:21,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:21,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:21,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747737447] [2022-07-12 07:29:21,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747737447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:21,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:21,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:29:21,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920337143] [2022-07-12 07:29:21,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:21,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:29:21,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:21,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:29:21,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:29:21,992 INFO L87 Difference]: Start difference. First operand 685 states and 854 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:24,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:24,759 INFO L93 Difference]: Finished difference Result 1893 states and 2518 transitions. [2022-07-12 07:29:24,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:29:24,759 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:24,761 INFO L225 Difference]: With dead ends: 1893 [2022-07-12 07:29:24,761 INFO L226 Difference]: Without dead ends: 1780 [2022-07-12 07:29:24,762 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 [2022-07-12 07:29:24,762 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 6999 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 2532 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6999 SdHoareTripleChecker+Valid, 3715 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 2532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:24,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6999 Valid, 3715 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 2532 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:29:24,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2022-07-12 07:29:25,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 690. [2022-07-12 07:29:25,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.285928143712575) internal successors, (859), 689 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:25,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 859 transitions. [2022-07-12 07:29:25,032 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 859 transitions. Word has length 100 [2022-07-12 07:29:25,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:25,032 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 859 transitions. [2022-07-12 07:29:25,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:25,032 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 859 transitions. [2022-07-12 07:29:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:25,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:25,033 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] [2022-07-12 07:29:25,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-12 07:29:25,033 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:25,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2105960988, now seen corresponding path program 1 times [2022-07-12 07:29:25,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:25,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899726214] [2022-07-12 07:29:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:25,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:25,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899726214] [2022-07-12 07:29:25,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899726214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:25,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:25,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:25,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200273855] [2022-07-12 07:29:25,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:25,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:25,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:25,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:25,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:25,146 INFO L87 Difference]: Start difference. First operand 690 states and 859 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:26,846 INFO L93 Difference]: Finished difference Result 1232 states and 1573 transitions. [2022-07-12 07:29:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:26,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:26,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:26,848 INFO L225 Difference]: With dead ends: 1232 [2022-07-12 07:29:26,848 INFO L226 Difference]: Without dead ends: 1154 [2022-07-12 07:29:26,848 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 [2022-07-12 07:29:26,849 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 3712 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:26,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 3674 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:29:26,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-07-12 07:29:27,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-07-12 07:29:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.284431137724551) internal successors, (858), 689 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 858 transitions. [2022-07-12 07:29:27,070 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 858 transitions. Word has length 100 [2022-07-12 07:29:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:27,070 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 858 transitions. [2022-07-12 07:29:27,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 858 transitions. [2022-07-12 07:29:27,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:27,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:27,072 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] [2022-07-12 07:29:27,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-12 07:29:27,072 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:27,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:27,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2115298916, now seen corresponding path program 1 times [2022-07-12 07:29:27,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:27,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878174828] [2022-07-12 07:29:27,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:27,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:27,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:27,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878174828] [2022-07-12 07:29:27,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878174828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:27,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:27,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:27,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410452730] [2022-07-12 07:29:27,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:27,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:27,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:27,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:27,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:27,184 INFO L87 Difference]: Start difference. First operand 690 states and 858 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:28,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:28,683 INFO L93 Difference]: Finished difference Result 1310 states and 1685 transitions. [2022-07-12 07:29:28,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:28,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:28,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:28,685 INFO L225 Difference]: With dead ends: 1310 [2022-07-12 07:29:28,685 INFO L226 Difference]: Without dead ends: 1206 [2022-07-12 07:29:28,685 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 [2022-07-12 07:29:28,686 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 4776 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:28,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4776 Valid, 2872 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:28,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-07-12 07:29:28,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 690. [2022-07-12 07:29:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.282934131736527) internal successors, (857), 689 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 857 transitions. [2022-07-12 07:29:28,903 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 857 transitions. Word has length 100 [2022-07-12 07:29:28,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:28,903 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 857 transitions. [2022-07-12 07:29:28,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 857 transitions. [2022-07-12 07:29:28,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:28,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:28,904 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] [2022-07-12 07:29:28,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-12 07:29:28,904 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:28,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:28,905 INFO L85 PathProgramCache]: Analyzing trace with hash 361781404, now seen corresponding path program 1 times [2022-07-12 07:29:28,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:28,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295189932] [2022-07-12 07:29:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:28,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:29,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:29,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295189932] [2022-07-12 07:29:29,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295189932] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:29,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:29,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:29,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853038288] [2022-07-12 07:29:29,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:29,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:29,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:29,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:29,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:29,005 INFO L87 Difference]: Start difference. First operand 690 states and 857 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:30,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:30,492 INFO L93 Difference]: Finished difference Result 1232 states and 1571 transitions. [2022-07-12 07:29:30,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:30,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:30,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:30,494 INFO L225 Difference]: With dead ends: 1232 [2022-07-12 07:29:30,494 INFO L226 Difference]: Without dead ends: 1154 [2022-07-12 07:29:30,494 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 [2022-07-12 07:29:30,494 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3982 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3982 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:30,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3982 Valid, 3019 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:30,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-07-12 07:29:30,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-07-12 07:29:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.281437125748503) internal successors, (856), 689 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 856 transitions. [2022-07-12 07:29:30,719 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 856 transitions. Word has length 100 [2022-07-12 07:29:30,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:30,720 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 856 transitions. [2022-07-12 07:29:30,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:30,720 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 856 transitions. [2022-07-12 07:29:30,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:30,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:30,721 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] [2022-07-12 07:29:30,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-12 07:29:30,721 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:30,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:30,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1379458134, now seen corresponding path program 1 times [2022-07-12 07:29:30,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:30,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027656646] [2022-07-12 07:29:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:30,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:30,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:30,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027656646] [2022-07-12 07:29:30,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027656646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:30,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:30,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:30,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915292349] [2022-07-12 07:29:30,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:30,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:30,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:30,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:30,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:30,815 INFO L87 Difference]: Start difference. First operand 690 states and 856 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:32,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:32,388 INFO L93 Difference]: Finished difference Result 1376 states and 1771 transitions. [2022-07-12 07:29:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:32,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:32,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:32,390 INFO L225 Difference]: With dead ends: 1376 [2022-07-12 07:29:32,390 INFO L226 Difference]: Without dead ends: 1214 [2022-07-12 07:29:32,391 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 [2022-07-12 07:29:32,391 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 3072 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:32,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3072 Valid, 3415 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-07-12 07:29:32,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 685. [2022-07-12 07:29:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.2820512820512822) internal successors, (850), 684 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 850 transitions. [2022-07-12 07:29:32,621 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 850 transitions. Word has length 100 [2022-07-12 07:29:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:32,621 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 850 transitions. [2022-07-12 07:29:32,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:32,621 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 850 transitions. [2022-07-12 07:29:32,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:32,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:32,623 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] [2022-07-12 07:29:32,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-12 07:29:32,623 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:32,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash -584559812, now seen corresponding path program 1 times [2022-07-12 07:29:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:32,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575847073] [2022-07-12 07:29:32,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:32,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:32,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:32,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:32,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575847073] [2022-07-12 07:29:32,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575847073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:32,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:32,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:29:32,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142122459] [2022-07-12 07:29:32,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:32,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:29:32,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:32,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:29:32,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:29:32,788 INFO L87 Difference]: Start difference. First operand 685 states and 850 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:35,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:35,602 INFO L93 Difference]: Finished difference Result 1870 states and 2491 transitions. [2022-07-12 07:29:35,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:29:35,602 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:35,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:35,604 INFO L225 Difference]: With dead ends: 1870 [2022-07-12 07:29:35,604 INFO L226 Difference]: Without dead ends: 1766 [2022-07-12 07:29:35,605 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 [2022-07-12 07:29:35,605 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 6740 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6740 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 3116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:35,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6740 Valid, 3856 Invalid, 3116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 2590 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:29:35,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-07-12 07:29:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 690. [2022-07-12 07:29:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.279940119760479) internal successors, (855), 689 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 855 transitions. [2022-07-12 07:29:35,913 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 855 transitions. Word has length 100 [2022-07-12 07:29:35,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:35,913 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 855 transitions. [2022-07-12 07:29:35,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:35,914 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 855 transitions. [2022-07-12 07:29:35,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:35,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:35,915 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] [2022-07-12 07:29:35,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-12 07:29:35,915 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:35,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:35,916 INFO L85 PathProgramCache]: Analyzing trace with hash 930233820, now seen corresponding path program 1 times [2022-07-12 07:29:35,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:35,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307311070] [2022-07-12 07:29:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:35,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:36,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:36,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307311070] [2022-07-12 07:29:36,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307311070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:36,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:36,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:36,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523496383] [2022-07-12 07:29:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:36,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:36,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:36,060 INFO L87 Difference]: Start difference. First operand 690 states and 855 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:37,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:37,668 INFO L93 Difference]: Finished difference Result 1232 states and 1568 transitions. [2022-07-12 07:29:37,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:37,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:37,672 INFO L225 Difference]: With dead ends: 1232 [2022-07-12 07:29:37,672 INFO L226 Difference]: Without dead ends: 1154 [2022-07-12 07:29:37,673 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 [2022-07-12 07:29:37,674 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 2022 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 2322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:37,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 3253 Invalid, 2322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:37,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-07-12 07:29:37,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-07-12 07:29:37,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.278443113772455) internal successors, (854), 689 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 854 transitions. [2022-07-12 07:29:37,904 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 854 transitions. Word has length 100 [2022-07-12 07:29:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:37,904 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 854 transitions. [2022-07-12 07:29:37,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 854 transitions. [2022-07-12 07:29:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:37,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:37,905 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] [2022-07-12 07:29:37,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-12 07:29:37,906 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:37,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:37,906 INFO L85 PathProgramCache]: Analyzing trace with hash -946932452, now seen corresponding path program 1 times [2022-07-12 07:29:37,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:37,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333076715] [2022-07-12 07:29:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:37,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:38,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:38,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333076715] [2022-07-12 07:29:38,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333076715] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:38,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:38,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:38,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674792348] [2022-07-12 07:29:38,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:38,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:38,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:38,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:38,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:38,007 INFO L87 Difference]: Start difference. First operand 690 states and 854 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:39,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:39,506 INFO L93 Difference]: Finished difference Result 1299 states and 1669 transitions. [2022-07-12 07:29:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:39,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:39,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:39,508 INFO L225 Difference]: With dead ends: 1299 [2022-07-12 07:29:39,508 INFO L226 Difference]: Without dead ends: 1201 [2022-07-12 07:29:39,508 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 [2022-07-12 07:29:39,509 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 4178 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4178 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:39,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4178 Valid, 3182 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:39,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-07-12 07:29:39,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 690. [2022-07-12 07:29:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.276946107784431) internal successors, (853), 689 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:39,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 853 transitions. [2022-07-12 07:29:39,752 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 853 transitions. Word has length 100 [2022-07-12 07:29:39,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:39,752 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 853 transitions. [2022-07-12 07:29:39,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:39,753 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 853 transitions. [2022-07-12 07:29:39,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:39,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:39,753 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] [2022-07-12 07:29:39,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-12 07:29:39,754 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:39,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:39,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1810001348, now seen corresponding path program 1 times [2022-07-12 07:29:39,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:39,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602700055] [2022-07-12 07:29:39,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:39,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:39,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:39,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602700055] [2022-07-12 07:29:39,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602700055] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:39,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:39,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:39,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307325031] [2022-07-12 07:29:39,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:39,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:39,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:39,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:39,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:39,852 INFO L87 Difference]: Start difference. First operand 690 states and 853 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:41,346 INFO L93 Difference]: Finished difference Result 1305 states and 1674 transitions. [2022-07-12 07:29:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:41,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:41,348 INFO L225 Difference]: With dead ends: 1305 [2022-07-12 07:29:41,348 INFO L226 Difference]: Without dead ends: 1201 [2022-07-12 07:29:41,348 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 [2022-07-12 07:29:41,349 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 4356 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4356 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:41,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4356 Valid, 3023 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:41,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-07-12 07:29:41,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 690. [2022-07-12 07:29:41,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2754491017964071) internal successors, (852), 689 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:41,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 852 transitions. [2022-07-12 07:29:41,582 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 852 transitions. Word has length 100 [2022-07-12 07:29:41,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:41,582 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 852 transitions. [2022-07-12 07:29:41,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:41,582 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 852 transitions. [2022-07-12 07:29:41,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:41,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:41,583 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] [2022-07-12 07:29:41,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-12 07:29:41,583 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:41,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1688175644, now seen corresponding path program 1 times [2022-07-12 07:29:41,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:41,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874376490] [2022-07-12 07:29:41,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:41,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:41,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874376490] [2022-07-12 07:29:41,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874376490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:41,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:41,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:41,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547498217] [2022-07-12 07:29:41,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:41,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:41,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:41,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:41,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:41,686 INFO L87 Difference]: Start difference. First operand 690 states and 852 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:43,181 INFO L93 Difference]: Finished difference Result 1232 states and 1564 transitions. [2022-07-12 07:29:43,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:43,182 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:43,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:43,183 INFO L225 Difference]: With dead ends: 1232 [2022-07-12 07:29:43,183 INFO L226 Difference]: Without dead ends: 1154 [2022-07-12 07:29:43,184 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 [2022-07-12 07:29:43,184 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 3048 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3048 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:43,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3048 Valid, 2994 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:43,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-07-12 07:29:43,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-07-12 07:29:43,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2739520958083832) internal successors, (851), 689 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 851 transitions. [2022-07-12 07:29:43,489 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 851 transitions. Word has length 100 [2022-07-12 07:29:43,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:43,489 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 851 transitions. [2022-07-12 07:29:43,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 851 transitions. [2022-07-12 07:29:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:43,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:43,490 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] [2022-07-12 07:29:43,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-12 07:29:43,490 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:43,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:43,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1307086337, now seen corresponding path program 1 times [2022-07-12 07:29:43,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:43,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928173167] [2022-07-12 07:29:43,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:43,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:43,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:43,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:43,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928173167] [2022-07-12 07:29:43,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928173167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:43,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:43,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:43,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456046565] [2022-07-12 07:29:43,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:43,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:43,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:43,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:43,596 INFO L87 Difference]: Start difference. First operand 690 states and 851 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:45,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:45,213 INFO L93 Difference]: Finished difference Result 1230 states and 1560 transitions. [2022-07-12 07:29:45,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:45,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:45,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:45,215 INFO L225 Difference]: With dead ends: 1230 [2022-07-12 07:29:45,215 INFO L226 Difference]: Without dead ends: 1154 [2022-07-12 07:29:45,215 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 [2022-07-12 07:29:45,216 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3773 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3773 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:45,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3773 Valid, 3453 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-07-12 07:29:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-07-12 07:29:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2724550898203593) internal successors, (850), 689 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:45,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 850 transitions. [2022-07-12 07:29:45,452 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 850 transitions. Word has length 100 [2022-07-12 07:29:45,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:45,452 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 850 transitions. [2022-07-12 07:29:45,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:45,453 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 850 transitions. [2022-07-12 07:29:45,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:45,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:45,454 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] [2022-07-12 07:29:45,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-12 07:29:45,454 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:45,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:45,454 INFO L85 PathProgramCache]: Analyzing trace with hash 623323004, now seen corresponding path program 1 times [2022-07-12 07:29:45,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:45,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319041002] [2022-07-12 07:29:45,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:45,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:45,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319041002] [2022-07-12 07:29:45,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319041002] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:45,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:45,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:45,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789667694] [2022-07-12 07:29:45,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:45,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:45,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:45,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:45,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:45,572 INFO L87 Difference]: Start difference. First operand 690 states and 850 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:47,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:47,212 INFO L93 Difference]: Finished difference Result 1232 states and 1561 transitions. [2022-07-12 07:29:47,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:47,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:47,213 INFO L225 Difference]: With dead ends: 1232 [2022-07-12 07:29:47,213 INFO L226 Difference]: Without dead ends: 1154 [2022-07-12 07:29:47,214 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 [2022-07-12 07:29:47,214 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3769 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3769 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:47,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3769 Valid, 3452 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:47,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-07-12 07:29:47,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 690. [2022-07-12 07:29:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2709580838323353) internal successors, (849), 689 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 849 transitions. [2022-07-12 07:29:47,451 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 849 transitions. Word has length 100 [2022-07-12 07:29:47,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:47,451 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 849 transitions. [2022-07-12 07:29:47,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 849 transitions. [2022-07-12 07:29:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:29:47,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:47,453 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] [2022-07-12 07:29:47,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-12 07:29:47,453 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:47,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:47,454 INFO L85 PathProgramCache]: Analyzing trace with hash 964528316, now seen corresponding path program 1 times [2022-07-12 07:29:47,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:47,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007634318] [2022-07-12 07:29:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:47,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:47,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:47,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007634318] [2022-07-12 07:29:47,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007634318] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:47,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:47,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:29:47,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130959267] [2022-07-12 07:29:47,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:47,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:29:47,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:47,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:29:47,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:29:47,603 INFO L87 Difference]: Start difference. First operand 690 states and 849 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:50,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:50,645 INFO L93 Difference]: Finished difference Result 1888 states and 2502 transitions. [2022-07-12 07:29:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:29:50,645 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:29:50,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:50,647 INFO L225 Difference]: With dead ends: 1888 [2022-07-12 07:29:50,647 INFO L226 Difference]: Without dead ends: 1775 [2022-07-12 07:29:50,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:29:50,648 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 6467 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 2908 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6467 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 3492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 2908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:50,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6467 Valid, 4197 Invalid, 3492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 2908 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 07:29:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2022-07-12 07:29:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 695. [2022-07-12 07:29:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 673 states have (on average 1.2689450222882614) internal successors, (854), 694 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:50,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 854 transitions. [2022-07-12 07:29:50,910 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 854 transitions. Word has length 100 [2022-07-12 07:29:50,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:50,910 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 854 transitions. [2022-07-12 07:29:50,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:50,911 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 854 transitions. [2022-07-12 07:29:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:29:50,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:50,911 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] [2022-07-12 07:29:50,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-12 07:29:50,912 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:50,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash 205443651, now seen corresponding path program 1 times [2022-07-12 07:29:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:50,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405381321] [2022-07-12 07:29:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:51,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:51,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405381321] [2022-07-12 07:29:51,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405381321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:51,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:51,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:51,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67481801] [2022-07-12 07:29:51,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:51,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:51,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:51,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:51,026 INFO L87 Difference]: Start difference. First operand 695 states and 854 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:29:52,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:52,671 INFO L93 Difference]: Finished difference Result 1240 states and 1568 transitions. [2022-07-12 07:29:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:52,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2022-07-12 07:29:52,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:52,673 INFO L225 Difference]: With dead ends: 1240 [2022-07-12 07:29:52,673 INFO L226 Difference]: Without dead ends: 1159 [2022-07-12 07:29:52,673 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 [2022-07-12 07:29:52,674 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3767 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3767 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:52,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3767 Valid, 3452 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-07-12 07:29:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 695. [2022-07-12 07:29:52,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 673 states have (on average 1.2674591381872213) internal successors, (853), 694 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:52,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 853 transitions. [2022-07-12 07:29:52,924 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 853 transitions. Word has length 101 [2022-07-12 07:29:52,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:52,925 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 853 transitions. [2022-07-12 07:29:52,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:29:52,925 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 853 transitions. [2022-07-12 07:29:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:29:52,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:52,926 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] [2022-07-12 07:29:52,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-12 07:29:52,926 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:52,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:52,927 INFO L85 PathProgramCache]: Analyzing trace with hash 558214531, now seen corresponding path program 1 times [2022-07-12 07:29:52,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:52,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363364830] [2022-07-12 07:29:52,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:52,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:53,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:53,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:53,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363364830] [2022-07-12 07:29:53,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363364830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:53,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:53,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:53,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168695307] [2022-07-12 07:29:53,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:53,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:53,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:53,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:53,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:53,017 INFO L87 Difference]: Start difference. First operand 695 states and 853 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:29:54,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:54,467 INFO L93 Difference]: Finished difference Result 1294 states and 1639 transitions. [2022-07-12 07:29:54,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:54,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2022-07-12 07:29:54,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:54,468 INFO L225 Difference]: With dead ends: 1294 [2022-07-12 07:29:54,469 INFO L226 Difference]: Without dead ends: 1200 [2022-07-12 07:29:54,469 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 [2022-07-12 07:29:54,469 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 3375 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3375 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:54,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3375 Valid, 2784 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:29:54,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-07-12 07:29:54,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 695. [2022-07-12 07:29:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 673 states have (on average 1.2659732540861812) internal successors, (852), 694 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 852 transitions. [2022-07-12 07:29:54,728 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 852 transitions. Word has length 101 [2022-07-12 07:29:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:54,729 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 852 transitions. [2022-07-12 07:29:54,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:29:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 852 transitions. [2022-07-12 07:29:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:29:54,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:54,730 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] [2022-07-12 07:29:54,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-12 07:29:54,730 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:54,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:54,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1900513027, now seen corresponding path program 1 times [2022-07-12 07:29:54,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:54,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226378449] [2022-07-12 07:29:54,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:54,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:54,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:54,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:54,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226378449] [2022-07-12 07:29:54,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226378449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:54,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:54,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:29:54,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038228364] [2022-07-12 07:29:54,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:54,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:29:54,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:54,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:29:54,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:29:54,889 INFO L87 Difference]: Start difference. First operand 695 states and 852 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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) [2022-07-12 07:29:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:58,090 INFO L93 Difference]: Finished difference Result 1900 states and 2511 transitions. [2022-07-12 07:29:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:29:58,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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 [2022-07-12 07:29:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:58,092 INFO L225 Difference]: With dead ends: 1900 [2022-07-12 07:29:58,092 INFO L226 Difference]: Without dead ends: 1781 [2022-07-12 07:29:58,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:29:58,093 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 7541 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7541 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 3738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:58,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7541 Valid, 4607 Invalid, 3738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 07:29:58,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-07-12 07:29:58,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 700. [2022-07-12 07:29:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 678 states have (on average 1.2640117994100295) internal successors, (857), 699 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:58,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 857 transitions. [2022-07-12 07:29:58,365 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 857 transitions. Word has length 101 [2022-07-12 07:29:58,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:58,365 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 857 transitions. [2022-07-12 07:29:58,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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) [2022-07-12 07:29:58,366 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 857 transitions. [2022-07-12 07:29:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:29:58,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:58,366 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] [2022-07-12 07:29:58,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-12 07:29:58,367 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:58,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1129794877, now seen corresponding path program 1 times [2022-07-12 07:29:58,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:58,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203228769] [2022-07-12 07:29:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:58,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:58,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:58,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203228769] [2022-07-12 07:29:58,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203228769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:58,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:58,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027012971] [2022-07-12 07:29:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:58,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:58,453 INFO L87 Difference]: Start difference. First operand 700 states and 857 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:29:59,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:59,971 INFO L93 Difference]: Finished difference Result 1245 states and 1571 transitions. [2022-07-12 07:29:59,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2022-07-12 07:29:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:59,973 INFO L225 Difference]: With dead ends: 1245 [2022-07-12 07:29:59,973 INFO L226 Difference]: Without dead ends: 1164 [2022-07-12 07:29:59,973 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 [2022-07-12 07:29:59,973 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 2488 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2488 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:59,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2488 Valid, 3054 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:59,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2022-07-12 07:30:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 700. [2022-07-12 07:30:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 678 states have (on average 1.2625368731563422) internal successors, (856), 699 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:00,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 856 transitions. [2022-07-12 07:30:00,236 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 856 transitions. Word has length 101 [2022-07-12 07:30:00,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:00,236 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 856 transitions. [2022-07-12 07:30:00,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:00,237 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 856 transitions. [2022-07-12 07:30:00,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:30:00,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:00,238 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] [2022-07-12 07:30:00,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-12 07:30:00,238 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:00,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2115351875, now seen corresponding path program 1 times [2022-07-12 07:30:00,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:00,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140822152] [2022-07-12 07:30:00,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:00,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:00,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:00,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:00,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140822152] [2022-07-12 07:30:00,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140822152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:00,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:00,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:00,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552301390] [2022-07-12 07:30:00,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:00,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:30:00,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:00,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:30:00,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:30:00,344 INFO L87 Difference]: Start difference. First operand 700 states and 856 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:01,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:01,890 INFO L93 Difference]: Finished difference Result 1170 states and 1458 transitions. [2022-07-12 07:30:01,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:30:01,890 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2022-07-12 07:30:01,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:01,892 INFO L225 Difference]: With dead ends: 1170 [2022-07-12 07:30:01,892 INFO L226 Difference]: Without dead ends: 1164 [2022-07-12 07:30:01,892 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 [2022-07-12 07:30:01,892 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 2484 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 2141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:01,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2484 Valid, 3056 Invalid, 2141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:30:01,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2022-07-12 07:30:02,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 700. [2022-07-12 07:30:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 678 states have (on average 1.261061946902655) internal successors, (855), 699 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 855 transitions. [2022-07-12 07:30:02,156 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 855 transitions. Word has length 101 [2022-07-12 07:30:02,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:02,156 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 855 transitions. [2022-07-12 07:30:02,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:02,156 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 855 transitions. [2022-07-12 07:30:02,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:30:02,157 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:02,157 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] [2022-07-12 07:30:02,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-12 07:30:02,157 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:02,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1375787382, now seen corresponding path program 1 times [2022-07-12 07:30:02,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:02,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655316931] [2022-07-12 07:30:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:02,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:02,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:02,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655316931] [2022-07-12 07:30:02,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655316931] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:02,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:02,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:02,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164744964] [2022-07-12 07:30:02,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:02,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:30:02,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:02,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:30:02,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:30:02,239 INFO L87 Difference]: Start difference. First operand 700 states and 855 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:03,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:03,758 INFO L93 Difference]: Finished difference Result 1314 states and 1667 transitions. [2022-07-12 07:30:03,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:30:03,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2022-07-12 07:30:03,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:03,760 INFO L225 Difference]: With dead ends: 1314 [2022-07-12 07:30:03,760 INFO L226 Difference]: Without dead ends: 1201 [2022-07-12 07:30:03,760 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 [2022-07-12 07:30:03,761 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 4269 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4269 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:03,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4269 Valid, 3115 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:30:03,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-07-12 07:30:04,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 695. [2022-07-12 07:30:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 673 states have (on average 1.2615156017830609) internal successors, (849), 694 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 849 transitions. [2022-07-12 07:30:04,054 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 849 transitions. Word has length 101 [2022-07-12 07:30:04,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:04,054 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 849 transitions. [2022-07-12 07:30:04,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 849 transitions. [2022-07-12 07:30:04,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:30:04,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:04,056 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] [2022-07-12 07:30:04,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-12 07:30:04,056 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:04,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:04,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1041958772, now seen corresponding path program 1 times [2022-07-12 07:30:04,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:04,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929554548] [2022-07-12 07:30:04,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:04,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:04,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:04,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929554548] [2022-07-12 07:30:04,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929554548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:04,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:04,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:04,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594054306] [2022-07-12 07:30:04,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:04,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:30:04,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:04,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:30:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:30:04,158 INFO L87 Difference]: Start difference. First operand 695 states and 849 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:05,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:05,737 INFO L93 Difference]: Finished difference Result 1305 states and 1658 transitions. [2022-07-12 07:30:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:30:05,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2022-07-12 07:30:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:05,739 INFO L225 Difference]: With dead ends: 1305 [2022-07-12 07:30:05,739 INFO L226 Difference]: Without dead ends: 1201 [2022-07-12 07:30:05,739 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 [2022-07-12 07:30:05,740 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 2083 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:05,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2083 Valid, 3279 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:30:05,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-07-12 07:30:06,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 690. [2022-07-12 07:30:06,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2619760479041917) internal successors, (843), 689 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 843 transitions. [2022-07-12 07:30:06,020 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 843 transitions. Word has length 101 [2022-07-12 07:30:06,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:06,020 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 843 transitions. [2022-07-12 07:30:06,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 843 transitions. [2022-07-12 07:30:06,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:30:06,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:06,021 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] [2022-07-12 07:30:06,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-12 07:30:06,021 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:06,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:06,022 INFO L85 PathProgramCache]: Analyzing trace with hash 650753541, now seen corresponding path program 1 times [2022-07-12 07:30:06,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:06,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020822797] [2022-07-12 07:30:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:06,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:06,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:06,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020822797] [2022-07-12 07:30:06,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020822797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:06,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:06,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:06,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657003575] [2022-07-12 07:30:06,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:06,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:30:06,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:06,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:30:06,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:30:06,113 INFO L87 Difference]: Start difference. First operand 690 states and 843 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:07,681 INFO L93 Difference]: Finished difference Result 1314 states and 1667 transitions. [2022-07-12 07:30:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:30:07,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2022-07-12 07:30:07,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:07,682 INFO L225 Difference]: With dead ends: 1314 [2022-07-12 07:30:07,682 INFO L226 Difference]: Without dead ends: 1201 [2022-07-12 07:30:07,683 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 [2022-07-12 07:30:07,683 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 3000 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:07,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 3387 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:30:07,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-07-12 07:30:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 685. [2022-07-12 07:30:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 663 states have (on average 1.262443438914027) internal successors, (837), 684 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:07,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 837 transitions. [2022-07-12 07:30:07,946 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 837 transitions. Word has length 101 [2022-07-12 07:30:07,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:07,947 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 837 transitions. [2022-07-12 07:30:07,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2022-07-12 07:30:07,947 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 837 transitions. [2022-07-12 07:30:07,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:30:07,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:07,948 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] [2022-07-12 07:30:07,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-12 07:30:07,948 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:07,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:07,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1048495107, now seen corresponding path program 1 times [2022-07-12 07:30:07,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:07,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627601455] [2022-07-12 07:30:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:07,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:08,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:08,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627601455] [2022-07-12 07:30:08,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627601455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:08,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:08,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:30:08,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837963694] [2022-07-12 07:30:08,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:08,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:08,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:08,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:08,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:08,099 INFO L87 Difference]: Start difference. First operand 685 states and 837 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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) [2022-07-12 07:30:10,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:10,933 INFO L93 Difference]: Finished difference Result 1612 states and 2095 transitions. [2022-07-12 07:30:10,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:30:10,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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 [2022-07-12 07:30:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:10,935 INFO L225 Difference]: With dead ends: 1612 [2022-07-12 07:30:10,935 INFO L226 Difference]: Without dead ends: 1531 [2022-07-12 07:30:10,935 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 [2022-07-12 07:30:10,935 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 6792 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6792 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 3021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:10,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6792 Valid, 3279 Invalid, 3021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:30:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2022-07-12 07:30:11,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 690. [2022-07-12 07:30:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2604790419161678) internal successors, (842), 689 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:11,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 842 transitions. [2022-07-12 07:30:11,252 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 842 transitions. Word has length 101 [2022-07-12 07:30:11,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:11,252 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 842 transitions. [2022-07-12 07:30:11,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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) [2022-07-12 07:30:11,253 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 842 transitions. [2022-07-12 07:30:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:11,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:11,253 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] [2022-07-12 07:30:11,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-12 07:30:11,254 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:11,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:11,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1646856919, now seen corresponding path program 1 times [2022-07-12 07:30:11,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:11,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115181682] [2022-07-12 07:30:11,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:11,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:11,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:11,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:11,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115181682] [2022-07-12 07:30:11,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115181682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:11,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:11,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:11,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067879698] [2022-07-12 07:30:11,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:11,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:11,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:11,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:11,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:11,506 INFO L87 Difference]: Start difference. First operand 690 states and 842 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:13,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:13,634 INFO L93 Difference]: Finished difference Result 1377 states and 1765 transitions. [2022-07-12 07:30:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:13,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-12 07:30:13,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:13,636 INFO L225 Difference]: With dead ends: 1377 [2022-07-12 07:30:13,636 INFO L226 Difference]: Without dead ends: 1301 [2022-07-12 07:30:13,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:13,637 INFO L413 NwaCegarLoop]: 1053 mSDtfsCounter, 4555 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4555 SdHoareTripleChecker+Valid, 5509 SdHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:13,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4555 Valid, 5509 Invalid, 2164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:30:13,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-07-12 07:30:13,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 689. [2022-07-12 07:30:13,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.2593703148425788) internal successors, (840), 688 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 840 transitions. [2022-07-12 07:30:13,950 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 840 transitions. Word has length 102 [2022-07-12 07:30:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:13,950 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 840 transitions. [2022-07-12 07:30:13,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 840 transitions. [2022-07-12 07:30:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:13,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:13,951 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] [2022-07-12 07:30:13,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-12 07:30:13,951 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:13,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:13,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1088930121, now seen corresponding path program 1 times [2022-07-12 07:30:13,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:13,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459942535] [2022-07-12 07:30:13,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:13,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:14,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:14,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459942535] [2022-07-12 07:30:14,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459942535] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:14,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:14,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:30:14,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266723035] [2022-07-12 07:30:14,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:14,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:30:14,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:14,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:30:14,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:30:14,222 INFO L87 Difference]: Start difference. First operand 689 states and 840 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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) [2022-07-12 07:30:16,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:16,617 INFO L93 Difference]: Finished difference Result 2159 states and 2780 transitions. [2022-07-12 07:30:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:30:16,617 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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 [2022-07-12 07:30:16,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:16,619 INFO L225 Difference]: With dead ends: 2159 [2022-07-12 07:30:16,620 INFO L226 Difference]: Without dead ends: 2057 [2022-07-12 07:30:16,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-07-12 07:30:16,621 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 5157 mSDsluCounter, 8827 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5157 SdHoareTripleChecker+Valid, 10447 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:16,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5157 Valid, 10447 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:30:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2022-07-12 07:30:16,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 662. [2022-07-12 07:30:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 641 states have (on average 1.2574102964118565) internal successors, (806), 661 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:16,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 806 transitions. [2022-07-12 07:30:16,930 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 806 transitions. Word has length 102 [2022-07-12 07:30:16,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:16,930 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 806 transitions. [2022-07-12 07:30:16,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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) [2022-07-12 07:30:16,930 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 806 transitions. [2022-07-12 07:30:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:16,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:16,931 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] [2022-07-12 07:30:16,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-12 07:30:16,931 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:16,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:16,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1385332425, now seen corresponding path program 1 times [2022-07-12 07:30:16,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:16,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799821018] [2022-07-12 07:30:16,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:16,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:17,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:17,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799821018] [2022-07-12 07:30:17,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799821018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:17,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:17,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:17,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770970386] [2022-07-12 07:30:17,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:17,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:17,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:17,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:17,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:17,170 INFO L87 Difference]: Start difference. First operand 662 states and 806 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:18,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:18,916 INFO L93 Difference]: Finished difference Result 1515 states and 1945 transitions. [2022-07-12 07:30:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:18,919 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-12 07:30:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:18,921 INFO L225 Difference]: With dead ends: 1515 [2022-07-12 07:30:18,921 INFO L226 Difference]: Without dead ends: 1397 [2022-07-12 07:30:18,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:18,922 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 4695 mSDsluCounter, 6281 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4695 SdHoareTripleChecker+Valid, 7540 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:18,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4695 Valid, 7540 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:30:18,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2022-07-12 07:30:19,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 619. [2022-07-12 07:30:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 601 states have (on average 1.2562396006655574) internal successors, (755), 618 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:19,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 755 transitions. [2022-07-12 07:30:19,238 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 755 transitions. Word has length 102 [2022-07-12 07:30:19,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:19,238 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 755 transitions. [2022-07-12 07:30:19,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 755 transitions. [2022-07-12 07:30:19,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:19,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:19,239 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] [2022-07-12 07:30:19,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-12 07:30:19,240 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:19,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:19,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1283351432, now seen corresponding path program 1 times [2022-07-12 07:30:19,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:19,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635096335] [2022-07-12 07:30:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:19,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:19,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:19,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635096335] [2022-07-12 07:30:19,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635096335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:19,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:19,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:19,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630357819] [2022-07-12 07:30:19,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:19,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:30:19,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:19,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:30:19,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:30:19,327 INFO L87 Difference]: Start difference. First operand 619 states and 755 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 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) [2022-07-12 07:30:21,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:21,050 INFO L93 Difference]: Finished difference Result 1258 states and 1594 transitions. [2022-07-12 07:30:21,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:30:21,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 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 [2022-07-12 07:30:21,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:21,051 INFO L225 Difference]: With dead ends: 1258 [2022-07-12 07:30:21,059 INFO L226 Difference]: Without dead ends: 1139 [2022-07-12 07:30:21,060 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 [2022-07-12 07:30:21,060 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 2460 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:21,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2460 Valid, 3458 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:30:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-07-12 07:30:21,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 614. [2022-07-12 07:30:21,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 596 states have (on average 1.2567114093959733) internal successors, (749), 613 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:21,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 749 transitions. [2022-07-12 07:30:21,375 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 749 transitions. Word has length 102 [2022-07-12 07:30:21,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:21,376 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 749 transitions. [2022-07-12 07:30:21,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 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) [2022-07-12 07:30:21,376 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 749 transitions. [2022-07-12 07:30:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:21,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:21,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:21,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-12 07:30:21,377 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:21,377 INFO L85 PathProgramCache]: Analyzing trace with hash 411891703, now seen corresponding path program 1 times [2022-07-12 07:30:21,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:21,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133561736] [2022-07-12 07:30:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:21,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:21,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:21,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:21,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133561736] [2022-07-12 07:30:21,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133561736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:21,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:21,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:21,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345234691] [2022-07-12 07:30:21,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:21,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:21,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:21,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:21,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:21,592 INFO L87 Difference]: Start difference. First operand 614 states and 749 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:23,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:23,039 INFO L93 Difference]: Finished difference Result 1353 states and 1745 transitions. [2022-07-12 07:30:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:23,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-12 07:30:23,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:23,041 INFO L225 Difference]: With dead ends: 1353 [2022-07-12 07:30:23,041 INFO L226 Difference]: Without dead ends: 1146 [2022-07-12 07:30:23,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:23,041 INFO L413 NwaCegarLoop]: 1279 mSDtfsCounter, 3177 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3177 SdHoareTripleChecker+Valid, 5822 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:23,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3177 Valid, 5822 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:30:23,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-07-12 07:30:23,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 482. [2022-07-12 07:30:23,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 469 states have (on average 1.2579957356076759) internal successors, (590), 481 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 590 transitions. [2022-07-12 07:30:23,324 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 590 transitions. Word has length 102 [2022-07-12 07:30:23,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:23,324 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 590 transitions. [2022-07-12 07:30:23,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 590 transitions. [2022-07-12 07:30:23,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:23,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:23,326 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] [2022-07-12 07:30:23,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-12 07:30:23,326 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:23,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:23,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2070282935, now seen corresponding path program 1 times [2022-07-12 07:30:23,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:23,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261620803] [2022-07-12 07:30:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:23,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:23,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:23,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261620803] [2022-07-12 07:30:23,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261620803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:23,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:23,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:23,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859552118] [2022-07-12 07:30:23,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:23,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:23,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:23,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:23,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:23,560 INFO L87 Difference]: Start difference. First operand 482 states and 590 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:24,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:24,982 INFO L93 Difference]: Finished difference Result 1173 states and 1538 transitions. [2022-07-12 07:30:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:24,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-12 07:30:24,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:24,984 INFO L225 Difference]: With dead ends: 1173 [2022-07-12 07:30:24,984 INFO L226 Difference]: Without dead ends: 1008 [2022-07-12 07:30:24,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:24,985 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 3582 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3582 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:24,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3582 Valid, 4669 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:30:24,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-12 07:30:25,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 392. [2022-07-12 07:30:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 380 states have (on average 1.2552631578947369) internal successors, (477), 391 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 477 transitions. [2022-07-12 07:30:25,224 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 477 transitions. Word has length 102 [2022-07-12 07:30:25,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:25,225 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 477 transitions. [2022-07-12 07:30:25,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:25,225 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 477 transitions. [2022-07-12 07:30:25,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:25,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:25,225 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] [2022-07-12 07:30:25,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-07-12 07:30:25,226 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:25,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:25,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1059722039, now seen corresponding path program 1 times [2022-07-12 07:30:25,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:25,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64270664] [2022-07-12 07:30:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:25,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:25,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:25,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64270664] [2022-07-12 07:30:25,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64270664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:25,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:25,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:25,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499538414] [2022-07-12 07:30:25,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:25,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:25,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:25,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:25,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:25,446 INFO L87 Difference]: Start difference. First operand 392 states and 477 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:26,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:26,951 INFO L93 Difference]: Finished difference Result 1177 states and 1534 transitions. [2022-07-12 07:30:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:26,952 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-12 07:30:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:26,953 INFO L225 Difference]: With dead ends: 1177 [2022-07-12 07:30:26,953 INFO L226 Difference]: Without dead ends: 1047 [2022-07-12 07:30:26,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:26,954 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 2393 mSDsluCounter, 5497 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 6534 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:26,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 6534 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:30:26,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-07-12 07:30:27,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 337. [2022-07-12 07:30:27,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.2484662576687116) internal successors, (407), 336 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 407 transitions. [2022-07-12 07:30:27,153 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 407 transitions. Word has length 102 [2022-07-12 07:30:27,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:27,154 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 407 transitions. [2022-07-12 07:30:27,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:27,154 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 407 transitions. [2022-07-12 07:30:27,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:27,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:27,154 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] [2022-07-12 07:30:27,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-07-12 07:30:27,155 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:27,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:27,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2015954551, now seen corresponding path program 1 times [2022-07-12 07:30:27,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:27,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100116012] [2022-07-12 07:30:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:27,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:27,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:27,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100116012] [2022-07-12 07:30:27,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100116012] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:27,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:27,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:30:27,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137831394] [2022-07-12 07:30:27,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:27,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:30:27,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:27,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:30:27,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:30:27,402 INFO L87 Difference]: Start difference. First operand 337 states and 407 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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) [2022-07-12 07:30:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:29,569 INFO L93 Difference]: Finished difference Result 1388 states and 1856 transitions. [2022-07-12 07:30:29,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:30:29,569 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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 [2022-07-12 07:30:29,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:29,571 INFO L225 Difference]: With dead ends: 1388 [2022-07-12 07:30:29,571 INFO L226 Difference]: Without dead ends: 1281 [2022-07-12 07:30:29,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:30:29,571 INFO L413 NwaCegarLoop]: 1163 mSDtfsCounter, 1948 mSDsluCounter, 8222 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1948 SdHoareTripleChecker+Valid, 9385 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:29,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1948 Valid, 9385 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:30:29,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-07-12 07:30:29,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 305. [2022-07-12 07:30:29,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 295 states have (on average 1.2440677966101694) internal successors, (367), 304 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:29,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 367 transitions. [2022-07-12 07:30:29,767 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 367 transitions. Word has length 102 [2022-07-12 07:30:29,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:29,767 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 367 transitions. [2022-07-12 07:30:29,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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) [2022-07-12 07:30:29,767 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 367 transitions. [2022-07-12 07:30:29,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:30:29,768 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:29,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:29,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-07-12 07:30:29,768 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:29,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1489984663, now seen corresponding path program 1 times [2022-07-12 07:30:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:29,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422310736] [2022-07-12 07:30:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:29,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:29,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422310736] [2022-07-12 07:30:29,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422310736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:29,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:29,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374069173] [2022-07-12 07:30:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:29,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:29,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:29,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:29,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:29,972 INFO L87 Difference]: Start difference. First operand 305 states and 367 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:31,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:31,320 INFO L93 Difference]: Finished difference Result 823 states and 1101 transitions. [2022-07-12 07:30:31,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:31,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-12 07:30:31,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:31,321 INFO L225 Difference]: With dead ends: 823 [2022-07-12 07:30:31,321 INFO L226 Difference]: Without dead ends: 747 [2022-07-12 07:30:31,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:31,322 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 2475 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:31,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2475 Valid, 3010 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:30:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-07-12 07:30:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 304. [2022-07-12 07:30:31,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 294 states have (on average 1.2414965986394557) internal successors, (365), 303 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:31,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 365 transitions. [2022-07-12 07:30:31,508 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 365 transitions. Word has length 102 [2022-07-12 07:30:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:31,509 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 365 transitions. [2022-07-12 07:30:31,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-12 07:30:31,509 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 365 transitions. [2022-07-12 07:30:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 07:30:31,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:31,509 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] [2022-07-12 07:30:31,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-07-12 07:30:31,509 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:31,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:31,510 INFO L85 PathProgramCache]: Analyzing trace with hash 883083848, now seen corresponding path program 1 times [2022-07-12 07:30:31,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:31,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144623443] [2022-07-12 07:30:31,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:31,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:31,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:31,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144623443] [2022-07-12 07:30:31,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144623443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:31,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:31,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:31,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730094439] [2022-07-12 07:30:31,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:31,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:31,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:31,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:31,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:31,739 INFO L87 Difference]: Start difference. First operand 304 states and 365 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 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) [2022-07-12 07:30:32,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:32,604 INFO L93 Difference]: Finished difference Result 524 states and 660 transitions. [2022-07-12 07:30:32,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 07:30:32,604 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 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 [2022-07-12 07:30:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:32,605 INFO L225 Difference]: With dead ends: 524 [2022-07-12 07:30:32,605 INFO L226 Difference]: Without dead ends: 445 [2022-07-12 07:30:32,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:30:32,606 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 1448 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:32,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 2488 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:30:32,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-07-12 07:30:32,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 300. [2022-07-12 07:30:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 291 states have (on average 1.2371134020618557) internal successors, (360), 299 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:32,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 360 transitions. [2022-07-12 07:30:32,794 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 360 transitions. Word has length 103 [2022-07-12 07:30:32,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:32,794 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 360 transitions. [2022-07-12 07:30:32,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 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) [2022-07-12 07:30:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 360 transitions. [2022-07-12 07:30:32,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 07:30:32,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:32,795 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] [2022-07-12 07:30:32,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-07-12 07:30:32,795 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:32,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:32,795 INFO L85 PathProgramCache]: Analyzing trace with hash -989398264, now seen corresponding path program 1 times [2022-07-12 07:30:32,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:32,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333302141] [2022-07-12 07:30:32,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:32,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:33,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:33,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333302141] [2022-07-12 07:30:33,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333302141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:33,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:33,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:30:33,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240237873] [2022-07-12 07:30:33,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:33,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:30:33,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:33,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:30:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:30:33,059 INFO L87 Difference]: Start difference. First operand 300 states and 360 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 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) [2022-07-12 07:30:35,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:35,361 INFO L93 Difference]: Finished difference Result 1301 states and 1747 transitions. [2022-07-12 07:30:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:30:35,362 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 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 [2022-07-12 07:30:35,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:35,363 INFO L225 Difference]: With dead ends: 1301 [2022-07-12 07:30:35,363 INFO L226 Difference]: Without dead ends: 1191 [2022-07-12 07:30:35,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:30:35,364 INFO L413 NwaCegarLoop]: 1272 mSDtfsCounter, 1932 mSDsluCounter, 8224 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 9496 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:35,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 9496 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:30:35,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2022-07-12 07:30:35,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 265. [2022-07-12 07:30:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 259 states have (on average 1.2316602316602316) internal successors, (319), 264 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 319 transitions. [2022-07-12 07:30:35,547 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 319 transitions. Word has length 103 [2022-07-12 07:30:35,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:35,547 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 319 transitions. [2022-07-12 07:30:35,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 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) [2022-07-12 07:30:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 319 transitions. [2022-07-12 07:30:35,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 07:30:35,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:35,548 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] [2022-07-12 07:30:35,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-07-12 07:30:35,548 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:35,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:35,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1769701400, now seen corresponding path program 1 times [2022-07-12 07:30:35,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:35,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218607363] [2022-07-12 07:30:35,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:35,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:35,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:35,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218607363] [2022-07-12 07:30:35,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218607363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:35,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:35,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:35,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963476791] [2022-07-12 07:30:35,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:35,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:35,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:35,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:35,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:35,805 INFO L87 Difference]: Start difference. First operand 265 states and 319 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 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) [2022-07-12 07:30:36,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:36,686 INFO L93 Difference]: Finished difference Result 470 states and 596 transitions. [2022-07-12 07:30:36,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:36,686 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 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 [2022-07-12 07:30:36,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:36,687 INFO L225 Difference]: With dead ends: 470 [2022-07-12 07:30:36,687 INFO L226 Difference]: Without dead ends: 391 [2022-07-12 07:30:36,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:36,688 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1485 mSDsluCounter, 1432 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:36,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1721 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:30:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-07-12 07:30:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 261. [2022-07-12 07:30:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.2265625) internal successors, (314), 260 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 314 transitions. [2022-07-12 07:30:36,867 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 314 transitions. Word has length 103 [2022-07-12 07:30:36,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:36,867 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 314 transitions. [2022-07-12 07:30:36,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 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) [2022-07-12 07:30:36,867 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 314 transitions. [2022-07-12 07:30:36,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 07:30:36,867 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:36,867 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] [2022-07-12 07:30:36,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-07-12 07:30:36,868 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:36,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2005053800, now seen corresponding path program 1 times [2022-07-12 07:30:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:36,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78389437] [2022-07-12 07:30:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:37,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78389437] [2022-07-12 07:30:37,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78389437] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:37,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:37,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:30:37,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918285255] [2022-07-12 07:30:37,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:37,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 07:30:37,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:37,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 07:30:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:30:37,073 INFO L87 Difference]: Start difference. First operand 261 states and 314 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 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) [2022-07-12 07:30:38,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:38,373 INFO L93 Difference]: Finished difference Result 807 states and 1077 transitions. [2022-07-12 07:30:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 07:30:38,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 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 [2022-07-12 07:30:38,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:38,375 INFO L225 Difference]: With dead ends: 807 [2022-07-12 07:30:38,375 INFO L226 Difference]: Without dead ends: 680 [2022-07-12 07:30:38,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:38,375 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 2662 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:38,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 1476 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:30:38,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-07-12 07:30:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 209. [2022-07-12 07:30:38,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 206 states have (on average 1.233009708737864) internal successors, (254), 208 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:38,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 254 transitions. [2022-07-12 07:30:38,534 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 254 transitions. Word has length 103 [2022-07-12 07:30:38,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:38,534 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 254 transitions. [2022-07-12 07:30:38,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 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) [2022-07-12 07:30:38,535 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 254 transitions. [2022-07-12 07:30:38,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-12 07:30:38,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:38,535 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] [2022-07-12 07:30:38,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-07-12 07:30:38,536 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:38,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:38,536 INFO L85 PathProgramCache]: Analyzing trace with hash -441491864, now seen corresponding path program 1 times [2022-07-12 07:30:38,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:38,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527394350] [2022-07-12 07:30:38,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:38,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:38,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:38,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527394350] [2022-07-12 07:30:38,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527394350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:38,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:38,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:38,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18426550] [2022-07-12 07:30:38,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:38,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:30:38,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:38,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:30:38,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:30:38,638 INFO L87 Difference]: Start difference. First operand 209 states and 254 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 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) [2022-07-12 07:30:39,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:39,292 INFO L93 Difference]: Finished difference Result 315 states and 396 transitions. [2022-07-12 07:30:39,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 07:30:39,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 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 [2022-07-12 07:30:39,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:39,294 INFO L225 Difference]: With dead ends: 315 [2022-07-12 07:30:39,294 INFO L226 Difference]: Without dead ends: 307 [2022-07-12 07:30:39,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-12 07:30:39,294 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 1132 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:39,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 784 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:30:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-07-12 07:30:39,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 209. [2022-07-12 07:30:39,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 206 states have (on average 1.2281553398058251) internal successors, (253), 208 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:39,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 253 transitions. [2022-07-12 07:30:39,472 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 253 transitions. Word has length 105 [2022-07-12 07:30:39,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:39,472 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 253 transitions. [2022-07-12 07:30:39,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 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) [2022-07-12 07:30:39,472 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 253 transitions. [2022-07-12 07:30:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-12 07:30:39,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:39,473 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] [2022-07-12 07:30:39,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-07-12 07:30:39,473 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:39,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:39,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1706763544, now seen corresponding path program 1 times [2022-07-12 07:30:39,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:39,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265803052] [2022-07-12 07:30:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:39,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:39,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:39,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:39,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265803052] [2022-07-12 07:30:39,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265803052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:39,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:39,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:39,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921525412] [2022-07-12 07:30:39,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:39,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:30:39,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:39,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:30:39,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:30:39,555 INFO L87 Difference]: Start difference. First operand 209 states and 253 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 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) [2022-07-12 07:30:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:40,176 INFO L93 Difference]: Finished difference Result 422 states and 543 transitions. [2022-07-12 07:30:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:30:40,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 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 [2022-07-12 07:30:40,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:40,177 INFO L225 Difference]: With dead ends: 422 [2022-07-12 07:30:40,177 INFO L226 Difference]: Without dead ends: 327 [2022-07-12 07:30:40,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-12 07:30:40,178 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 913 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:40,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 817 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:30:40,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-07-12 07:30:40,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 209. [2022-07-12 07:30:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 206 states have (on average 1.2233009708737863) internal successors, (252), 208 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 252 transitions. [2022-07-12 07:30:40,351 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 252 transitions. Word has length 105 [2022-07-12 07:30:40,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:40,351 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 252 transitions. [2022-07-12 07:30:40,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 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) [2022-07-12 07:30:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 252 transitions. [2022-07-12 07:30:40,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-12 07:30:40,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:40,351 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] [2022-07-12 07:30:40,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-07-12 07:30:40,351 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:40,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:40,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1398650157, now seen corresponding path program 1 times [2022-07-12 07:30:40,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:40,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222411755] [2022-07-12 07:30:40,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:40,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:40,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:40,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222411755] [2022-07-12 07:30:40,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222411755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:40,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:40,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:40,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196683856] [2022-07-12 07:30:40,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:40,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:40,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:40,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:40,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:40,566 INFO L87 Difference]: Start difference. First operand 209 states and 252 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 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) [2022-07-12 07:30:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:41,645 INFO L93 Difference]: Finished difference Result 465 states and 616 transitions. [2022-07-12 07:30:41,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:41,646 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 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 [2022-07-12 07:30:41,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:41,646 INFO L225 Difference]: With dead ends: 465 [2022-07-12 07:30:41,646 INFO L226 Difference]: Without dead ends: 459 [2022-07-12 07:30:41,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:41,647 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 1148 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:41,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 3146 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:30:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-07-12 07:30:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 203. [2022-07-12 07:30:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 201 states have (on average 1.2238805970149254) internal successors, (246), 202 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:41,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 246 transitions. [2022-07-12 07:30:41,807 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 246 transitions. Word has length 107 [2022-07-12 07:30:41,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:41,807 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 246 transitions. [2022-07-12 07:30:41,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 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) [2022-07-12 07:30:41,807 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 246 transitions. [2022-07-12 07:30:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-12 07:30:41,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:41,807 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] [2022-07-12 07:30:41,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-07-12 07:30:41,808 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1448357139, now seen corresponding path program 1 times [2022-07-12 07:30:41,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:41,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126000311] [2022-07-12 07:30:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:41,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:42,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:42,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126000311] [2022-07-12 07:30:42,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126000311] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:42,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:42,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-07-12 07:30:42,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904276295] [2022-07-12 07:30:42,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:42,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-07-12 07:30:42,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:42,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-07-12 07:30:42,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2022-07-12 07:30:42,687 INFO L87 Difference]: Start difference. First operand 203 states and 246 transitions. Second operand has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 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) [2022-07-12 07:30:48,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:48,959 INFO L93 Difference]: Finished difference Result 926 states and 1205 transitions. [2022-07-12 07:30:48,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-12 07:30:48,959 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 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 [2022-07-12 07:30:48,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:48,960 INFO L225 Difference]: With dead ends: 926 [2022-07-12 07:30:48,960 INFO L226 Difference]: Without dead ends: 917 [2022-07-12 07:30:48,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=499, Invalid=2807, Unknown=0, NotChecked=0, Total=3306 [2022-07-12 07:30:48,961 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 2188 mSDsluCounter, 14428 mSDsCounter, 0 mSdLazyCounter, 7553 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2188 SdHoareTripleChecker+Valid, 15254 SdHoareTripleChecker+Invalid, 7631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 7553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:48,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2188 Valid, 15254 Invalid, 7631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 7553 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 07:30:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-07-12 07:30:49,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 231. [2022-07-12 07:30:49,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 229 states have (on average 1.2183406113537119) internal successors, (279), 230 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:49,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 279 transitions. [2022-07-12 07:30:49,149 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 279 transitions. Word has length 107 [2022-07-12 07:30:49,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:49,149 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 279 transitions. [2022-07-12 07:30:49,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 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) [2022-07-12 07:30:49,150 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 279 transitions. [2022-07-12 07:30:49,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-12 07:30:49,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:49,150 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] [2022-07-12 07:30:49,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-07-12 07:30:49,150 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:49,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1489766619, now seen corresponding path program 1 times [2022-07-12 07:30:49,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:49,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526332704] [2022-07-12 07:30:49,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:49,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:49,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:49,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526332704] [2022-07-12 07:30:49,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526332704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:49,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:49,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:49,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355218687] [2022-07-12 07:30:49,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:49,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:49,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:49,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:49,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:49,396 INFO L87 Difference]: Start difference. First operand 231 states and 279 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 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) [2022-07-12 07:30:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:50,577 INFO L93 Difference]: Finished difference Result 508 states and 669 transitions. [2022-07-12 07:30:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 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 [2022-07-12 07:30:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:50,578 INFO L225 Difference]: With dead ends: 508 [2022-07-12 07:30:50,579 INFO L226 Difference]: Without dead ends: 492 [2022-07-12 07:30:50,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:50,579 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 1291 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:50,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 2999 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:30:50,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-12 07:30:50,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 190. [2022-07-12 07:30:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 189 states have (on average 1.2275132275132274) internal successors, (232), 189 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2022-07-12 07:30:50,760 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 108 [2022-07-12 07:30:50,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:50,760 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2022-07-12 07:30:50,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 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) [2022-07-12 07:30:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2022-07-12 07:30:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 07:30:50,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:50,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:50,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-07-12 07:30:50,761 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:50,761 INFO L85 PathProgramCache]: Analyzing trace with hash 442348771, now seen corresponding path program 1 times [2022-07-12 07:30:50,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:50,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486751896] [2022-07-12 07:30:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:50,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:50,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:50,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486751896] [2022-07-12 07:30:50,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486751896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:50,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:50,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:50,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909773282] [2022-07-12 07:30:50,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:50,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:30:50,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:50,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:30:50,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:30:50,842 INFO L87 Difference]: Start difference. First operand 190 states and 232 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:53,057 INFO L93 Difference]: Finished difference Result 1090 states and 1552 transitions. [2022-07-12 07:30:53,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:30:53,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-07-12 07:30:53,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:53,059 INFO L225 Difference]: With dead ends: 1090 [2022-07-12 07:30:53,059 INFO L226 Difference]: Without dead ends: 1015 [2022-07-12 07:30:53,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-07-12 07:30:53,059 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 2310 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:53,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 1871 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:30:53,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2022-07-12 07:30:53,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 263. [2022-07-12 07:30:53,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.2938931297709924) internal successors, (339), 262 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 339 transitions. [2022-07-12 07:30:53,389 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 339 transitions. Word has length 140 [2022-07-12 07:30:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:53,389 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 339 transitions. [2022-07-12 07:30:53,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 339 transitions. [2022-07-12 07:30:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 07:30:53,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:53,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:53,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-07-12 07:30:53,390 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:53,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:53,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1151920748, now seen corresponding path program 1 times [2022-07-12 07:30:53,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:53,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634303478] [2022-07-12 07:30:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:53,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:53,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:53,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:53,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634303478] [2022-07-12 07:30:53,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634303478] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:53,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:53,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:53,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464010242] [2022-07-12 07:30:53,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:53,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:30:53,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:53,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:30:53,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:30:53,470 INFO L87 Difference]: Start difference. First operand 263 states and 339 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:55,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:55,421 INFO L93 Difference]: Finished difference Result 1226 states and 1749 transitions. [2022-07-12 07:30:55,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:30:55,422 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-12 07:30:55,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:55,423 INFO L225 Difference]: With dead ends: 1226 [2022-07-12 07:30:55,423 INFO L226 Difference]: Without dead ends: 1078 [2022-07-12 07:30:55,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:30:55,423 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1913 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:55,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 1240 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:30:55,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-07-12 07:30:56,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 409. [2022-07-12 07:30:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 408 states have (on average 1.357843137254902) internal successors, (554), 408 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:56,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 554 transitions. [2022-07-12 07:30:56,072 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 554 transitions. Word has length 142 [2022-07-12 07:30:56,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:56,072 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 554 transitions. [2022-07-12 07:30:56,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:56,073 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 554 transitions. [2022-07-12 07:30:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 07:30:56,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:56,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:56,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-07-12 07:30:56,080 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1593810451, now seen corresponding path program 1 times [2022-07-12 07:30:56,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:56,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593033993] [2022-07-12 07:30:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:56,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:56,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:56,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:56,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593033993] [2022-07-12 07:30:56,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593033993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:56,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:56,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:30:56,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683221024] [2022-07-12 07:30:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:56,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:30:56,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:30:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:30:56,138 INFO L87 Difference]: Start difference. First operand 409 states and 554 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:57,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:57,292 INFO L93 Difference]: Finished difference Result 971 states and 1372 transitions. [2022-07-12 07:30:57,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:30:57,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-12 07:30:57,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:57,294 INFO L225 Difference]: With dead ends: 971 [2022-07-12 07:30:57,294 INFO L226 Difference]: Without dead ends: 677 [2022-07-12 07:30:57,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:30:57,295 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 97 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:57,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 542 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:30:57,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-07-12 07:30:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 675. [2022-07-12 07:30:58,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.3813056379821957) internal successors, (931), 674 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:58,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 931 transitions. [2022-07-12 07:30:58,488 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 931 transitions. Word has length 142 [2022-07-12 07:30:58,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:58,488 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 931 transitions. [2022-07-12 07:30:58,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:58,488 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 931 transitions. [2022-07-12 07:30:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 07:30:58,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:58,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:58,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-07-12 07:30:58,489 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:58,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:58,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1660303963, now seen corresponding path program 1 times [2022-07-12 07:30:58,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:58,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771704198] [2022-07-12 07:30:58,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:58,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:58,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:58,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771704198] [2022-07-12 07:30:58,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771704198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:58,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:58,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:58,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672081315] [2022-07-12 07:30:58,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:58,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:30:58,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:58,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:30:58,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:30:58,644 INFO L87 Difference]: Start difference. First operand 675 states and 931 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:59,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:59,968 INFO L93 Difference]: Finished difference Result 1237 states and 1741 transitions. [2022-07-12 07:30:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:30:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-12 07:30:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:59,969 INFO L225 Difference]: With dead ends: 1237 [2022-07-12 07:30:59,969 INFO L226 Difference]: Without dead ends: 677 [2022-07-12 07:30:59,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:59,970 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 691 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:59,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 865 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:30:59,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-07-12 07:31:01,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 675. [2022-07-12 07:31:01,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.3783382789317506) internal successors, (929), 674 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:01,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 929 transitions. [2022-07-12 07:31:01,118 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 929 transitions. Word has length 142 [2022-07-12 07:31:01,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:31:01,119 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 929 transitions. [2022-07-12 07:31:01,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:01,119 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 929 transitions. [2022-07-12 07:31:01,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 07:31:01,120 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:31:01,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:31:01,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-07-12 07:31:01,120 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:31:01,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:31:01,121 INFO L85 PathProgramCache]: Analyzing trace with hash 455110252, now seen corresponding path program 1 times [2022-07-12 07:31:01,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:31:01,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806629609] [2022-07-12 07:31:01,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:31:01,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:31:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:31:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:31:01,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:31:01,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806629609] [2022-07-12 07:31:01,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806629609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:31:01,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:31:01,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:31:01,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524451598] [2022-07-12 07:31:01,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:31:01,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:31:01,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:31:01,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:31:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:31:01,197 INFO L87 Difference]: Start difference. First operand 675 states and 929 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:05,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:31:05,634 INFO L93 Difference]: Finished difference Result 2503 states and 3561 transitions. [2022-07-12 07:31:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:31:05,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-12 07:31:05,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:31:05,637 INFO L225 Difference]: With dead ends: 2503 [2022-07-12 07:31:05,637 INFO L226 Difference]: Without dead ends: 2222 [2022-07-12 07:31:05,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:31:05,638 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1779 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:31:05,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 1302 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:31:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-07-12 07:31:07,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 1094. [2022-07-12 07:31:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 1.4016468435498628) internal successors, (1532), 1093 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1532 transitions. [2022-07-12 07:31:07,810 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1532 transitions. Word has length 142 [2022-07-12 07:31:07,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:31:07,810 INFO L495 AbstractCegarLoop]: Abstraction has 1094 states and 1532 transitions. [2022-07-12 07:31:07,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1532 transitions. [2022-07-12 07:31:07,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 07:31:07,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:31:07,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:31:07,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-07-12 07:31:07,811 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:31:07,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:31:07,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1544803220, now seen corresponding path program 1 times [2022-07-12 07:31:07,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:31:07,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659383787] [2022-07-12 07:31:07,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:31:07,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:31:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:31:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:31:07,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:31:07,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659383787] [2022-07-12 07:31:07,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659383787] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:31:07,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:31:07,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:31:07,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271198299] [2022-07-12 07:31:07,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:31:07,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:31:07,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:31:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:31:07,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:31:07,893 INFO L87 Difference]: Start difference. First operand 1094 states and 1532 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:13,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:31:13,249 INFO L93 Difference]: Finished difference Result 2782 states and 3963 transitions. [2022-07-12 07:31:13,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:31:13,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-12 07:31:13,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:31:13,252 INFO L225 Difference]: With dead ends: 2782 [2022-07-12 07:31:13,252 INFO L226 Difference]: Without dead ends: 2501 [2022-07-12 07:31:13,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:31:13,253 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1635 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:31:13,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 1416 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:31:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2022-07-12 07:31:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 1373. [2022-07-12 07:31:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1372 states have (on average 1.4096209912536444) internal successors, (1934), 1372 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:15,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1934 transitions. [2022-07-12 07:31:15,988 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1934 transitions. Word has length 142 [2022-07-12 07:31:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:31:15,988 INFO L495 AbstractCegarLoop]: Abstraction has 1373 states and 1934 transitions. [2022-07-12 07:31:15,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:15,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1934 transitions. [2022-07-12 07:31:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 07:31:15,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:31:15,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:31:15,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-07-12 07:31:15,990 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:31:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:31:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1663653780, now seen corresponding path program 1 times [2022-07-12 07:31:15,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:31:15,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000718674] [2022-07-12 07:31:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:31:15,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:31:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:31:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:31:16,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:31:16,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000718674] [2022-07-12 07:31:16,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000718674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:31:16,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:31:16,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:31:16,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000363771] [2022-07-12 07:31:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:31:16,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:31:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:31:16,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:31:16,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:31:16,077 INFO L87 Difference]: Start difference. First operand 1373 states and 1934 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:31:21,671 INFO L93 Difference]: Finished difference Result 3061 states and 4365 transitions. [2022-07-12 07:31:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:31:21,671 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-12 07:31:21,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:31:21,674 INFO L225 Difference]: With dead ends: 3061 [2022-07-12 07:31:21,674 INFO L226 Difference]: Without dead ends: 2780 [2022-07-12 07:31:21,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:31:21,674 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1587 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:31:21,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 1561 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:31:21,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-07-12 07:31:24,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 1652. [2022-07-12 07:31:24,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1651 states have (on average 1.4149000605693518) internal successors, (2336), 1651 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:24,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2336 transitions. [2022-07-12 07:31:24,993 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2336 transitions. Word has length 142 [2022-07-12 07:31:24,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:31:24,993 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 2336 transitions. [2022-07-12 07:31:24,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2336 transitions. [2022-07-12 07:31:24,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 07:31:24,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:31:24,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:31:24,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-07-12 07:31:24,994 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:31:24,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:31:24,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1946851732, now seen corresponding path program 1 times [2022-07-12 07:31:24,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:31:24,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409795944] [2022-07-12 07:31:24,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:31:24,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:31:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:31:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:31:25,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:31:25,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409795944] [2022-07-12 07:31:25,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409795944] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:31:25,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:31:25,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:31:25,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329708625] [2022-07-12 07:31:25,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:31:25,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:31:25,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:31:25,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:31:25,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:31:25,082 INFO L87 Difference]: Start difference. First operand 1652 states and 2336 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:31,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:31:31,355 INFO L93 Difference]: Finished difference Result 3340 states and 4767 transitions. [2022-07-12 07:31:31,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:31:31,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-12 07:31:31,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:31:31,359 INFO L225 Difference]: With dead ends: 3340 [2022-07-12 07:31:31,359 INFO L226 Difference]: Without dead ends: 3059 [2022-07-12 07:31:31,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:31:31,360 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 1640 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:31:31,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 1559 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:31:31,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2022-07-12 07:31:35,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 1931. [2022-07-12 07:31:35,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1930 states have (on average 1.4186528497409328) internal successors, (2738), 1930 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2738 transitions. [2022-07-12 07:31:35,339 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2738 transitions. Word has length 142 [2022-07-12 07:31:35,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:31:35,339 INFO L495 AbstractCegarLoop]: Abstraction has 1931 states and 2738 transitions. [2022-07-12 07:31:35,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2738 transitions. [2022-07-12 07:31:35,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 07:31:35,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:31:35,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:31:35,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-07-12 07:31:35,341 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:31:35,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:31:35,341 INFO L85 PathProgramCache]: Analyzing trace with hash 830809196, now seen corresponding path program 1 times [2022-07-12 07:31:35,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:31:35,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372765250] [2022-07-12 07:31:35,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:31:35,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:31:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:31:35,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:31:35,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:31:35,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372765250] [2022-07-12 07:31:35,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372765250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:31:35,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:31:35,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:31:35,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177321840] [2022-07-12 07:31:35,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:31:35,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:31:35,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:31:35,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:31:35,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:31:35,422 INFO L87 Difference]: Start difference. First operand 1931 states and 2738 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:31:42,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:31:42,825 INFO L93 Difference]: Finished difference Result 3619 states and 5169 transitions. [2022-07-12 07:31:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:31:42,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-12 07:31:42,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:31:42,831 INFO L225 Difference]: With dead ends: 3619 [2022-07-12 07:31:42,831 INFO L226 Difference]: Without dead ends: 3338 [2022-07-12 07:31:42,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:31:42,832 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1642 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:31:42,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 1393 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:31:42,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states.