./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08e27279d8b0f092d8b126b1fa68f6a49bc0b5cda6842121ef1790310988da5f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 06:05:25,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 06:05:25,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 06:05:25,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 06:05:25,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 06:05:25,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 06:05:25,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 06:05:25,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 06:05:25,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 06:05:25,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 06:05:25,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 06:05:25,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 06:05:25,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 06:05:25,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 06:05:25,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 06:05:25,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 06:05:25,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 06:05:25,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 06:05:25,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 06:05:25,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 06:05:25,879 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 06:05:25,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 06:05:25,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 06:05:25,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 06:05:25,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 06:05:25,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 06:05:25,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 06:05:25,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 06:05:25,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 06:05:25,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 06:05:25,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 06:05:25,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 06:05:25,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 06:05:25,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 06:05:25,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 06:05:25,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 06:05:25,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 06:05:25,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 06:05:25,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 06:05:25,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 06:05:25,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 06:05:25,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 06:05:25,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 06:05:25,952 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 06:05:25,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 06:05:25,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 06:05:25,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 06:05:25,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 06:05:25,967 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 06:05:25,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 06:05:25,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 06:05:25,969 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 06:05:25,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 06:05:25,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 06:05:25,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 06:05:25,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 06:05:25,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 06:05:25,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 06:05:25,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 06:05:25,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 06:05:25,971 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 06:05:25,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 06:05:25,971 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 06:05:25,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 06:05:25,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 06:05:25,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 06:05:25,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 06:05:25,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:05:25,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 06:05:25,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 06:05:25,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 06:05:25,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 06:05:25,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 06:05:25,973 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 06:05:25,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 06:05:25,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 06:05:25,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08e27279d8b0f092d8b126b1fa68f6a49bc0b5cda6842121ef1790310988da5f [2022-07-21 06:05:26,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 06:05:26,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 06:05:26,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 06:05:26,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 06:05:26,550 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 06:05:26,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-07-21 06:05:26,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ef9ee93/25874eb256404740a779608d5085709a/FLAG0101bab12 [2022-07-21 06:05:27,629 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 06:05:27,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-07-21 06:05:27,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ef9ee93/25874eb256404740a779608d5085709a/FLAG0101bab12 [2022-07-21 06:05:27,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ef9ee93/25874eb256404740a779608d5085709a [2022-07-21 06:05:27,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 06:05:27,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 06:05:27,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 06:05:27,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 06:05:27,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 06:05:27,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:05:27" (1/1) ... [2022-07-21 06:05:27,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fafd130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:27, skipping insertion in model container [2022-07-21 06:05:27,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:05:27" (1/1) ... [2022-07-21 06:05:27,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 06:05:27,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 06:05:28,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2022-07-21 06:05:28,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2022-07-21 06:05:28,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2022-07-21 06:05:28,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2022-07-21 06:05:28,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2022-07-21 06:05:28,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2022-07-21 06:05:28,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2022-07-21 06:05:28,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2022-07-21 06:05:28,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2022-07-21 06:05:28,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2022-07-21 06:05:28,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2022-07-21 06:05:28,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2022-07-21 06:05:28,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2022-07-21 06:05:28,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2022-07-21 06:05:28,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2022-07-21 06:05:28,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2022-07-21 06:05:28,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2022-07-21 06:05:28,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2022-07-21 06:05:28,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2022-07-21 06:05:28,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2022-07-21 06:05:28,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2022-07-21 06:05:29,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2022-07-21 06:05:29,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:05:29,336 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 06:05:29,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2022-07-21 06:05:29,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2022-07-21 06:05:29,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2022-07-21 06:05:29,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2022-07-21 06:05:29,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2022-07-21 06:05:29,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2022-07-21 06:05:29,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2022-07-21 06:05:29,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2022-07-21 06:05:29,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2022-07-21 06:05:29,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2022-07-21 06:05:29,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2022-07-21 06:05:29,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2022-07-21 06:05:29,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2022-07-21 06:05:29,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2022-07-21 06:05:29,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2022-07-21 06:05:29,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2022-07-21 06:05:29,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2022-07-21 06:05:29,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2022-07-21 06:05:29,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2022-07-21 06:05:29,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2022-07-21 06:05:29,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2022-07-21 06:05:29,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2022-07-21 06:05:29,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:05:30,012 INFO L208 MainTranslator]: Completed translation [2022-07-21 06:05:30,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30 WrapperNode [2022-07-21 06:05:30,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 06:05:30,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 06:05:30,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 06:05:30,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 06:05:30,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,169 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6593 [2022-07-21 06:05:30,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 06:05:30,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 06:05:30,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 06:05:30,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 06:05:30,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 06:05:30,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 06:05:30,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 06:05:30,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 06:05:30,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (1/1) ... [2022-07-21 06:05:30,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:05:30,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 06:05:30,442 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) [2022-07-21 06:05:30,464 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 [2022-07-21 06:05:30,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 06:05:30,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 06:05:30,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 06:05:30,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 06:05:30,954 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 06:05:30,955 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 06:05:33,078 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 06:05:33,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 06:05:33,090 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 06:05:33,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:05:33 BoogieIcfgContainer [2022-07-21 06:05:33,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 06:05:33,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 06:05:33,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 06:05:33,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 06:05:33,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 06:05:27" (1/3) ... [2022-07-21 06:05:33,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecaf404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:05:33, skipping insertion in model container [2022-07-21 06:05:33,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:30" (2/3) ... [2022-07-21 06:05:33,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecaf404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:05:33, skipping insertion in model container [2022-07-21 06:05:33,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:05:33" (3/3) ... [2022-07-21 06:05:33,098 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-07-21 06:05:33,107 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 06:05:33,107 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-07-21 06:05:33,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 06:05:33,174 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@380508d3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1976d139 [2022-07-21 06:05:33,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-07-21 06:05:33,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 1131 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1130 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:33,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 06:05:33,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:33,218 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] [2022-07-21 06:05:33,219 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)] === [2022-07-21 06:05:33,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:33,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1995797141, now seen corresponding path program 1 times [2022-07-21 06:05:33,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:33,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735202038] [2022-07-21 06:05:33,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:33,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:33,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:33,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:33,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735202038] [2022-07-21 06:05:33,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735202038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:33,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:33,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:33,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134728671] [2022-07-21 06:05:33,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:33,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:33,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:33,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:33,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:33,544 INFO L87 Difference]: Start difference. First operand has 1131 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1130 states have internal predecessors, (2056), 0 states have call successors, (0), 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 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:34,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:34,493 INFO L93 Difference]: Finished difference Result 2063 states and 3582 transitions. [2022-07-21 06:05:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:34,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-07-21 06:05:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:34,508 INFO L225 Difference]: With dead ends: 2063 [2022-07-21 06:05:34,508 INFO L226 Difference]: Without dead ends: 1223 [2022-07-21 06:05:34,512 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 [2022-07-21 06:05:34,514 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 5615 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:34,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5615 Valid, 1396 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:05:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2022-07-21 06:05:34,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1143. [2022-07-21 06:05:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1121 states have (on average 1.3648528099910795) internal successors, (1530), 1142 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1530 transitions. [2022-07-21 06:05:34,588 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1530 transitions. Word has length 86 [2022-07-21 06:05:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:34,589 INFO L495 AbstractCegarLoop]: Abstraction has 1143 states and 1530 transitions. [2022-07-21 06:05:34,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1530 transitions. [2022-07-21 06:05:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 06:05:34,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:34,592 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] [2022-07-21 06:05:34,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 06:05:34,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:34,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:34,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1029751, now seen corresponding path program 1 times [2022-07-21 06:05:34,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:34,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106887922] [2022-07-21 06:05:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:34,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:34,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:34,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106887922] [2022-07-21 06:05:34,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106887922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:34,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:34,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:34,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751750906] [2022-07-21 06:05:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:34,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:34,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:34,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:34,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:34,726 INFO L87 Difference]: Start difference. First operand 1143 states and 1530 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) [2022-07-21 06:05:35,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:35,181 INFO L93 Difference]: Finished difference Result 1986 states and 2729 transitions. [2022-07-21 06:05:35,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:35,182 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 [2022-07-21 06:05:35,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:35,185 INFO L225 Difference]: With dead ends: 1986 [2022-07-21 06:05:35,185 INFO L226 Difference]: Without dead ends: 1039 [2022-07-21 06:05:35,187 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 [2022-07-21 06:05:35,189 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 2867 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:35,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2867 Valid, 569 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:05:35,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-07-21 06:05:35,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2022-07-21 06:05:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1017 states have (on average 1.384464110127827) internal successors, (1408), 1038 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1408 transitions. [2022-07-21 06:05:35,227 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1408 transitions. Word has length 87 [2022-07-21 06:05:35,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:35,228 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1408 transitions. [2022-07-21 06:05:35,228 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) [2022-07-21 06:05:35,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1408 transitions. [2022-07-21 06:05:35,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-21 06:05:35,230 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:35,230 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] [2022-07-21 06:05:35,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 06:05:35,230 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:35,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1805729392, now seen corresponding path program 1 times [2022-07-21 06:05:35,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:35,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681900363] [2022-07-21 06:05:35,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:35,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:35,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681900363] [2022-07-21 06:05:35,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681900363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:35,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:35,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:35,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447212151] [2022-07-21 06:05:35,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:35,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:35,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:35,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:35,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:35,358 INFO L87 Difference]: Start difference. First operand 1039 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:35,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:35,752 INFO L93 Difference]: Finished difference Result 1882 states and 2605 transitions. [2022-07-21 06:05:35,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:35,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-07-21 06:05:35,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:35,755 INFO L225 Difference]: With dead ends: 1882 [2022-07-21 06:05:35,756 INFO L226 Difference]: Without dead ends: 975 [2022-07-21 06:05:35,757 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 [2022-07-21 06:05:35,758 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 2682 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:35,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 537 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:05:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-07-21 06:05:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-07-21 06:05:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 953 states have (on average 1.3997901364113325) internal successors, (1334), 974 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:35,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1334 transitions. [2022-07-21 06:05:35,792 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1334 transitions. Word has length 88 [2022-07-21 06:05:35,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:35,793 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1334 transitions. [2022-07-21 06:05:35,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:35,793 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1334 transitions. [2022-07-21 06:05:35,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-21 06:05:35,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:35,795 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] [2022-07-21 06:05:35,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 06:05:35,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:35,796 INFO L85 PathProgramCache]: Analyzing trace with hash 19097864, now seen corresponding path program 1 times [2022-07-21 06:05:35,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:35,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067664449] [2022-07-21 06:05:35,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:35,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:35,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:35,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067664449] [2022-07-21 06:05:35,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067664449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:35,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:35,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:35,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491104847] [2022-07-21 06:05:35,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:35,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:35,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:35,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:35,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:35,912 INFO L87 Difference]: Start difference. First operand 975 states and 1334 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) [2022-07-21 06:05:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:36,371 INFO L93 Difference]: Finished difference Result 1818 states and 2529 transitions. [2022-07-21 06:05:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:36,372 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 [2022-07-21 06:05:36,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:36,374 INFO L225 Difference]: With dead ends: 1818 [2022-07-21 06:05:36,375 INFO L226 Difference]: Without dead ends: 934 [2022-07-21 06:05:36,376 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 [2022-07-21 06:05:36,376 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 2582 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:36,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2582 Valid, 512 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:05:36,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-07-21 06:05:36,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2022-07-21 06:05:36,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.4111842105263157) internal successors, (1287), 933 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1287 transitions. [2022-07-21 06:05:36,405 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1287 transitions. Word has length 89 [2022-07-21 06:05:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:36,406 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1287 transitions. [2022-07-21 06:05:36,406 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) [2022-07-21 06:05:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1287 transitions. [2022-07-21 06:05:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-21 06:05:36,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:36,408 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] [2022-07-21 06:05:36,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 06:05:36,408 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:36,409 INFO L85 PathProgramCache]: Analyzing trace with hash 817016169, now seen corresponding path program 1 times [2022-07-21 06:05:36,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:36,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009364242] [2022-07-21 06:05:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:36,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:36,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:36,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009364242] [2022-07-21 06:05:36,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009364242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:36,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:36,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:36,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229235320] [2022-07-21 06:05:36,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:36,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:36,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:36,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:36,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:36,510 INFO L87 Difference]: Start difference. First operand 934 states and 1287 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:36,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:36,881 INFO L93 Difference]: Finished difference Result 1777 states and 2480 transitions. [2022-07-21 06:05:36,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:36,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-07-21 06:05:36,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:36,885 INFO L225 Difference]: With dead ends: 1777 [2022-07-21 06:05:36,885 INFO L226 Difference]: Without dead ends: 915 [2022-07-21 06:05:36,886 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 [2022-07-21 06:05:36,887 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 2499 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:36,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 501 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:05:36,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-07-21 06:05:36,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2022-07-21 06:05:36,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 893 states have (on average 1.4154535274356104) internal successors, (1264), 914 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1264 transitions. [2022-07-21 06:05:36,918 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1264 transitions. Word has length 90 [2022-07-21 06:05:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:36,918 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1264 transitions. [2022-07-21 06:05:36,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:36,919 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1264 transitions. [2022-07-21 06:05:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-21 06:05:36,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:36,920 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] [2022-07-21 06:05:36,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 06:05:36,920 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:36,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1321361543, now seen corresponding path program 1 times [2022-07-21 06:05:36,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:36,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339439058] [2022-07-21 06:05:36,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:36,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:37,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:37,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339439058] [2022-07-21 06:05:37,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339439058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:37,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:37,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:37,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904841221] [2022-07-21 06:05:37,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:37,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:37,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:37,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:37,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:37,005 INFO L87 Difference]: Start difference. First operand 915 states and 1264 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) [2022-07-21 06:05:37,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:37,501 INFO L93 Difference]: Finished difference Result 1758 states and 2455 transitions. [2022-07-21 06:05:37,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:37,502 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 [2022-07-21 06:05:37,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:37,505 INFO L225 Difference]: With dead ends: 1758 [2022-07-21 06:05:37,505 INFO L226 Difference]: Without dead ends: 910 [2022-07-21 06:05:37,506 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 [2022-07-21 06:05:37,519 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 2361 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:37,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 426 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:05:37,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-07-21 06:05:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2022-07-21 06:05:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4144144144144144) internal successors, (1256), 909 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:37,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1256 transitions. [2022-07-21 06:05:37,587 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1256 transitions. Word has length 91 [2022-07-21 06:05:37,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:37,588 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1256 transitions. [2022-07-21 06:05:37,588 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) [2022-07-21 06:05:37,588 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1256 transitions. [2022-07-21 06:05:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-21 06:05:37,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:37,590 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] [2022-07-21 06:05:37,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 06:05:37,590 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:37,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:37,591 INFO L85 PathProgramCache]: Analyzing trace with hash 471449544, now seen corresponding path program 1 times [2022-07-21 06:05:37,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:37,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789872641] [2022-07-21 06:05:37,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:37,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:37,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:37,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789872641] [2022-07-21 06:05:37,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789872641] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:37,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:37,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:37,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900190564] [2022-07-21 06:05:37,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:37,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:37,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:37,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:37,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:37,718 INFO L87 Difference]: Start difference. First operand 910 states and 1256 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:38,748 INFO L93 Difference]: Finished difference Result 1936 states and 2726 transitions. [2022-07-21 06:05:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:38,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-21 06:05:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:38,756 INFO L225 Difference]: With dead ends: 1936 [2022-07-21 06:05:38,756 INFO L226 Difference]: Without dead ends: 1738 [2022-07-21 06:05:38,757 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 [2022-07-21 06:05:38,757 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 3913 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3913 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:38,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3913 Valid, 2241 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:05:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-07-21 06:05:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-07-21 06:05:38,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4132882882882882) internal successors, (1255), 909 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:38,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1255 transitions. [2022-07-21 06:05:38,806 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1255 transitions. Word has length 92 [2022-07-21 06:05:38,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:38,807 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1255 transitions. [2022-07-21 06:05:38,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1255 transitions. [2022-07-21 06:05:38,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-21 06:05:38,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:38,809 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] [2022-07-21 06:05:38,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 06:05:38,809 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:38,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:38,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1530881816, now seen corresponding path program 1 times [2022-07-21 06:05:38,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:38,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882738647] [2022-07-21 06:05:38,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:38,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:38,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:38,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882738647] [2022-07-21 06:05:38,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882738647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:38,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:38,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:05:38,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295013090] [2022-07-21 06:05:38,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:38,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:05:38,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:38,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:05:38,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:05:38,961 INFO L87 Difference]: Start difference. First operand 910 states and 1255 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:40,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:40,338 INFO L93 Difference]: Finished difference Result 2093 states and 2923 transitions. [2022-07-21 06:05:40,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 06:05:40,340 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-21 06:05:40,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:40,346 INFO L225 Difference]: With dead ends: 2093 [2022-07-21 06:05:40,346 INFO L226 Difference]: Without dead ends: 1881 [2022-07-21 06:05:40,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-07-21 06:05:40,348 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 3122 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:40,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3122 Valid, 3247 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:05:40,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2022-07-21 06:05:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 913. [2022-07-21 06:05:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.4118967452300786) internal successors, (1258), 912 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1258 transitions. [2022-07-21 06:05:40,399 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1258 transitions. Word has length 92 [2022-07-21 06:05:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:40,400 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1258 transitions. [2022-07-21 06:05:40,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:40,400 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1258 transitions. [2022-07-21 06:05:40,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-21 06:05:40,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:40,402 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] [2022-07-21 06:05:40,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 06:05:40,402 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:40,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:40,403 INFO L85 PathProgramCache]: Analyzing trace with hash 348627122, now seen corresponding path program 1 times [2022-07-21 06:05:40,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:40,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901863795] [2022-07-21 06:05:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:40,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:40,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:40,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901863795] [2022-07-21 06:05:40,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901863795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:40,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:40,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:40,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305430983] [2022-07-21 06:05:40,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:40,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:40,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:40,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:40,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:40,508 INFO L87 Difference]: Start difference. First operand 913 states and 1258 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:41,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:41,807 INFO L93 Difference]: Finished difference Result 1755 states and 2441 transitions. [2022-07-21 06:05:41,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:41,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-21 06:05:41,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:41,812 INFO L225 Difference]: With dead ends: 1755 [2022-07-21 06:05:41,813 INFO L226 Difference]: Without dead ends: 1488 [2022-07-21 06:05:41,813 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 [2022-07-21 06:05:41,815 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 4470 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4470 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:41,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4470 Valid, 2810 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:05:41,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-07-21 06:05:41,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 910. [2022-07-21 06:05:41,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.412162162162162) internal successors, (1254), 909 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1254 transitions. [2022-07-21 06:05:41,883 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1254 transitions. Word has length 92 [2022-07-21 06:05:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:41,883 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1254 transitions. [2022-07-21 06:05:41,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1254 transitions. [2022-07-21 06:05:41,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-21 06:05:41,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:41,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:41,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 06:05:41,886 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:41,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:41,893 INFO L85 PathProgramCache]: Analyzing trace with hash 889427447, now seen corresponding path program 1 times [2022-07-21 06:05:41,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:41,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563672276] [2022-07-21 06:05:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:41,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:41,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:41,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563672276] [2022-07-21 06:05:41,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563672276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:41,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:41,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:05:41,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457851606] [2022-07-21 06:05:41,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:41,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:05:41,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:41,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:05:42,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:05:42,001 INFO L87 Difference]: Start difference. First operand 910 states and 1254 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:42,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:42,755 INFO L93 Difference]: Finished difference Result 1659 states and 2225 transitions. [2022-07-21 06:05:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:05:42,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-21 06:05:42,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:42,759 INFO L225 Difference]: With dead ends: 1659 [2022-07-21 06:05:42,759 INFO L226 Difference]: Without dead ends: 1239 [2022-07-21 06:05:42,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-21 06:05:42,761 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 3810 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3810 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:42,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3810 Valid, 1045 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:05:42,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-07-21 06:05:42,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 910. [2022-07-21 06:05:42,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4110360360360361) internal successors, (1253), 909 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1253 transitions. [2022-07-21 06:05:42,845 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1253 transitions. Word has length 92 [2022-07-21 06:05:42,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:42,845 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1253 transitions. [2022-07-21 06:05:42,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:42,846 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1253 transitions. [2022-07-21 06:05:42,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 06:05:42,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:42,850 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] [2022-07-21 06:05:42,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 06:05:42,851 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)] === [2022-07-21 06:05:42,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:42,851 INFO L85 PathProgramCache]: Analyzing trace with hash -709696546, now seen corresponding path program 1 times [2022-07-21 06:05:42,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:42,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258609779] [2022-07-21 06:05:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:42,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:42,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:42,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258609779] [2022-07-21 06:05:42,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258609779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:42,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:42,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:42,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672339969] [2022-07-21 06:05:42,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:42,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:42,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:42,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:42,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:42,988 INFO L87 Difference]: Start difference. First operand 910 states and 1253 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:43,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:43,834 INFO L93 Difference]: Finished difference Result 1542 states and 2156 transitions. [2022-07-21 06:05:43,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 06:05:43,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-21 06:05:43,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:43,838 INFO L225 Difference]: With dead ends: 1542 [2022-07-21 06:05:43,838 INFO L226 Difference]: Without dead ends: 1140 [2022-07-21 06:05:43,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-21 06:05:43,840 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 3953 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:43,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3953 Valid, 2134 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:05:43,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-07-21 06:05:43,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 910. [2022-07-21 06:05:43,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4087837837837838) internal successors, (1251), 909 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1251 transitions. [2022-07-21 06:05:43,922 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1251 transitions. Word has length 94 [2022-07-21 06:05:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:43,922 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1251 transitions. [2022-07-21 06:05:43,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1251 transitions. [2022-07-21 06:05:43,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 06:05:43,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:43,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:43,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 06:05:43,925 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:43,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:43,926 INFO L85 PathProgramCache]: Analyzing trace with hash -904842275, now seen corresponding path program 1 times [2022-07-21 06:05:43,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:43,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334261109] [2022-07-21 06:05:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:43,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:44,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:44,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:44,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334261109] [2022-07-21 06:05:44,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334261109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:44,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:44,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:44,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095080030] [2022-07-21 06:05:44,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:44,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:44,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:44,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:44,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:44,074 INFO L87 Difference]: Start difference. First operand 910 states and 1251 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:45,159 INFO L93 Difference]: Finished difference Result 1902 states and 2665 transitions. [2022-07-21 06:05:45,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:45,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-21 06:05:45,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:45,165 INFO L225 Difference]: With dead ends: 1902 [2022-07-21 06:05:45,165 INFO L226 Difference]: Without dead ends: 1710 [2022-07-21 06:05:45,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 06:05:45,166 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 4795 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:45,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 2439 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1950 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:05:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-21 06:05:45,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-07-21 06:05:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4065315315315314) internal successors, (1249), 909 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:45,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1249 transitions. [2022-07-21 06:05:45,287 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1249 transitions. Word has length 94 [2022-07-21 06:05:45,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:45,287 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1249 transitions. [2022-07-21 06:05:45,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:45,288 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1249 transitions. [2022-07-21 06:05:45,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 06:05:45,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:45,303 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] [2022-07-21 06:05:45,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 06:05:45,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:45,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:45,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1510616083, now seen corresponding path program 1 times [2022-07-21 06:05:45,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:45,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112531730] [2022-07-21 06:05:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:45,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:45,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:45,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112531730] [2022-07-21 06:05:45,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112531730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:45,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:45,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:45,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662896801] [2022-07-21 06:05:45,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:45,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:45,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:45,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:45,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:45,430 INFO L87 Difference]: Start difference. First operand 910 states and 1249 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:46,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:46,602 INFO L93 Difference]: Finished difference Result 1984 states and 2782 transitions. [2022-07-21 06:05:46,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:46,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-21 06:05:46,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:46,607 INFO L225 Difference]: With dead ends: 1984 [2022-07-21 06:05:46,607 INFO L226 Difference]: Without dead ends: 1738 [2022-07-21 06:05:46,608 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 [2022-07-21 06:05:46,609 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 2976 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:46,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2976 Valid, 3288 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:05:46,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-07-21 06:05:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-07-21 06:05:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4042792792792793) internal successors, (1247), 909 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:46,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1247 transitions. [2022-07-21 06:05:46,717 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1247 transitions. Word has length 94 [2022-07-21 06:05:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:46,717 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1247 transitions. [2022-07-21 06:05:46,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1247 transitions. [2022-07-21 06:05:46,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 06:05:46,719 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:46,719 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] [2022-07-21 06:05:46,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 06:05:46,720 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:46,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash -10217144, now seen corresponding path program 1 times [2022-07-21 06:05:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:46,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374181455] [2022-07-21 06:05:46,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:46,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:46,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:46,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374181455] [2022-07-21 06:05:46,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374181455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:46,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:46,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:46,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321471862] [2022-07-21 06:05:46,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:46,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:46,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:46,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:46,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:46,821 INFO L87 Difference]: Start difference. First operand 910 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:47,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:47,929 INFO L93 Difference]: Finished difference Result 1950 states and 2731 transitions. [2022-07-21 06:05:47,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:47,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-21 06:05:47,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:47,936 INFO L225 Difference]: With dead ends: 1950 [2022-07-21 06:05:47,936 INFO L226 Difference]: Without dead ends: 1738 [2022-07-21 06:05:47,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:05:47,937 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 4325 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4325 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:47,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4325 Valid, 3115 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:05:47,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-07-21 06:05:48,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-07-21 06:05:48,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4031531531531531) internal successors, (1246), 909 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:48,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1246 transitions. [2022-07-21 06:05:48,036 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1246 transitions. Word has length 94 [2022-07-21 06:05:48,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:48,036 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1246 transitions. [2022-07-21 06:05:48,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:48,037 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1246 transitions. [2022-07-21 06:05:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 06:05:48,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:48,038 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] [2022-07-21 06:05:48,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 06:05:48,038 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:48,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:48,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1869291794, now seen corresponding path program 1 times [2022-07-21 06:05:48,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:48,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158925973] [2022-07-21 06:05:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:48,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:48,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:48,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:48,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158925973] [2022-07-21 06:05:48,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158925973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:48,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:48,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:48,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736372876] [2022-07-21 06:05:48,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:48,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:48,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:48,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:48,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:48,131 INFO L87 Difference]: Start difference. First operand 910 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:49,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:49,177 INFO L93 Difference]: Finished difference Result 1791 states and 2478 transitions. [2022-07-21 06:05:49,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:49,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-21 06:05:49,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:49,182 INFO L225 Difference]: With dead ends: 1791 [2022-07-21 06:05:49,182 INFO L226 Difference]: Without dead ends: 1638 [2022-07-21 06:05:49,183 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 [2022-07-21 06:05:49,183 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 3937 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3937 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:49,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3937 Valid, 2133 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:05:49,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-21 06:05:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-07-21 06:05:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.402027027027027) internal successors, (1245), 909 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:49,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1245 transitions. [2022-07-21 06:05:49,263 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1245 transitions. Word has length 94 [2022-07-21 06:05:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:49,263 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1245 transitions. [2022-07-21 06:05:49,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1245 transitions. [2022-07-21 06:05:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 06:05:49,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:49,264 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] [2022-07-21 06:05:49,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 06:05:49,265 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:49,265 INFO L85 PathProgramCache]: Analyzing trace with hash 191796868, now seen corresponding path program 1 times [2022-07-21 06:05:49,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:49,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087193339] [2022-07-21 06:05:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:49,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:49,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:49,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087193339] [2022-07-21 06:05:49,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087193339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:49,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:49,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:49,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406844672] [2022-07-21 06:05:49,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:49,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:49,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:49,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:49,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:49,351 INFO L87 Difference]: Start difference. First operand 910 states and 1245 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:50,377 INFO L93 Difference]: Finished difference Result 1883 states and 2631 transitions. [2022-07-21 06:05:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:50,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-21 06:05:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:50,381 INFO L225 Difference]: With dead ends: 1883 [2022-07-21 06:05:50,381 INFO L226 Difference]: Without dead ends: 1710 [2022-07-21 06:05:50,382 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 [2022-07-21 06:05:50,382 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 3181 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 2938 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:50,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3181 Valid, 2938 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:05:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-21 06:05:50,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-07-21 06:05:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4009009009009008) internal successors, (1244), 909 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1244 transitions. [2022-07-21 06:05:50,466 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1244 transitions. Word has length 94 [2022-07-21 06:05:50,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:50,466 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1244 transitions. [2022-07-21 06:05:50,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:50,467 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1244 transitions. [2022-07-21 06:05:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 06:05:50,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:50,468 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] [2022-07-21 06:05:50,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 06:05:50,468 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:50,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:50,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1752938330, now seen corresponding path program 1 times [2022-07-21 06:05:50,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:50,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861507903] [2022-07-21 06:05:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:50,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:50,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:50,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861507903] [2022-07-21 06:05:50,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861507903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:50,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:50,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:50,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817039587] [2022-07-21 06:05:50,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:50,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:50,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:50,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:50,568 INFO L87 Difference]: Start difference. First operand 910 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:51,519 INFO L93 Difference]: Finished difference Result 1878 states and 2625 transitions. [2022-07-21 06:05:51,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:51,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-21 06:05:51,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:51,524 INFO L225 Difference]: With dead ends: 1878 [2022-07-21 06:05:51,524 INFO L226 Difference]: Without dead ends: 1710 [2022-07-21 06:05:51,525 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 [2022-07-21 06:05:51,525 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 4329 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4329 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:51,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4329 Valid, 2781 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:05:51,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-21 06:05:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-07-21 06:05:51,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3997747747747749) internal successors, (1243), 909 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1243 transitions. [2022-07-21 06:05:51,612 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1243 transitions. Word has length 94 [2022-07-21 06:05:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:51,612 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1243 transitions. [2022-07-21 06:05:51,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1243 transitions. [2022-07-21 06:05:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:05:51,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:51,614 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] [2022-07-21 06:05:51,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 06:05:51,614 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:51,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:51,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1333702137, now seen corresponding path program 1 times [2022-07-21 06:05:51,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:51,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121983482] [2022-07-21 06:05:51,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:51,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:51,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:51,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121983482] [2022-07-21 06:05:51,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121983482] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:51,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:51,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:51,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107402515] [2022-07-21 06:05:51,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:51,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:51,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:51,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:51,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:51,705 INFO L87 Difference]: Start difference. First operand 910 states and 1243 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) [2022-07-21 06:05:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:52,965 INFO L93 Difference]: Finished difference Result 1914 states and 2670 transitions. [2022-07-21 06:05:52,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:52,966 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 [2022-07-21 06:05:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:52,970 INFO L225 Difference]: With dead ends: 1914 [2022-07-21 06:05:52,970 INFO L226 Difference]: Without dead ends: 1710 [2022-07-21 06:05:52,971 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 [2022-07-21 06:05:52,971 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 4664 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:52,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4664 Valid, 2663 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:05:52,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-21 06:05:53,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-07-21 06:05:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3975225225225225) internal successors, (1241), 909 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1241 transitions. [2022-07-21 06:05:53,067 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1241 transitions. Word has length 96 [2022-07-21 06:05:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:53,067 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1241 transitions. [2022-07-21 06:05:53,067 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) [2022-07-21 06:05:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1241 transitions. [2022-07-21 06:05:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:05:53,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:53,069 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] [2022-07-21 06:05:53,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 06:05:53,069 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash 924856909, now seen corresponding path program 1 times [2022-07-21 06:05:53,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:53,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912780984] [2022-07-21 06:05:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:53,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:53,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:53,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912780984] [2022-07-21 06:05:53,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912780984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:53,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:53,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:53,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144320015] [2022-07-21 06:05:53,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:53,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:53,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:53,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:53,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:53,151 INFO L87 Difference]: Start difference. First operand 910 states and 1241 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) [2022-07-21 06:05:54,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:54,065 INFO L93 Difference]: Finished difference Result 1794 states and 2476 transitions. [2022-07-21 06:05:54,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:54,066 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 [2022-07-21 06:05:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:54,069 INFO L225 Difference]: With dead ends: 1794 [2022-07-21 06:05:54,069 INFO L226 Difference]: Without dead ends: 1638 [2022-07-21 06:05:54,069 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 [2022-07-21 06:05:54,070 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 2433 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:54,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 2133 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:05:54,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-21 06:05:54,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-07-21 06:05:54,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3952702702702702) internal successors, (1239), 909 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:54,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1239 transitions. [2022-07-21 06:05:54,162 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1239 transitions. Word has length 96 [2022-07-21 06:05:54,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:54,162 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1239 transitions. [2022-07-21 06:05:54,162 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) [2022-07-21 06:05:54,162 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1239 transitions. [2022-07-21 06:05:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:05:54,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:54,165 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] [2022-07-21 06:05:54,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 06:05:54,165 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)] === [2022-07-21 06:05:54,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash 92967727, now seen corresponding path program 1 times [2022-07-21 06:05:54,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:54,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806313493] [2022-07-21 06:05:54,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:54,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:54,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:54,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806313493] [2022-07-21 06:05:54,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806313493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:54,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:54,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:54,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728223811] [2022-07-21 06:05:54,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:54,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:54,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:54,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:54,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:54,261 INFO L87 Difference]: Start difference. First operand 910 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:55,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:55,456 INFO L93 Difference]: Finished difference Result 2016 states and 2805 transitions. [2022-07-21 06:05:55,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:55,456 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 [2022-07-21 06:05:55,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:55,474 INFO L225 Difference]: With dead ends: 2016 [2022-07-21 06:05:55,479 INFO L226 Difference]: Without dead ends: 1738 [2022-07-21 06:05:55,480 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 [2022-07-21 06:05:55,481 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 3060 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:55,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 3134 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:05:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-07-21 06:05:55,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-07-21 06:05:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.393018018018018) internal successors, (1237), 909 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:55,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1237 transitions. [2022-07-21 06:05:55,588 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1237 transitions. Word has length 96 [2022-07-21 06:05:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:55,588 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1237 transitions. [2022-07-21 06:05:55,588 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) [2022-07-21 06:05:55,589 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1237 transitions. [2022-07-21 06:05:55,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:05:55,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:55,590 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] [2022-07-21 06:05:55,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 06:05:55,590 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:55,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:55,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1818861412, now seen corresponding path program 1 times [2022-07-21 06:05:55,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:55,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850178908] [2022-07-21 06:05:55,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:55,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:55,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:55,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850178908] [2022-07-21 06:05:55,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850178908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:55,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:55,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:05:55,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503575947] [2022-07-21 06:05:55,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:55,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:05:55,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:55,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:05:55,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:05:55,764 INFO L87 Difference]: Start difference. First operand 910 states and 1237 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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) [2022-07-21 06:05:57,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:57,880 INFO L93 Difference]: Finished difference Result 2774 states and 3913 transitions. [2022-07-21 06:05:57,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:05:57,880 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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 [2022-07-21 06:05:57,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:57,884 INFO L225 Difference]: With dead ends: 2774 [2022-07-21 06:05:57,884 INFO L226 Difference]: Without dead ends: 2608 [2022-07-21 06:05:57,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:05:57,885 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 6255 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6255 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 3215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:57,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6255 Valid, 3130 Invalid, 3215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 06:05:57,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2022-07-21 06:05:58,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 918. [2022-07-21 06:05:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3895089285714286) internal successors, (1245), 917 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:58,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1245 transitions. [2022-07-21 06:05:58,017 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1245 transitions. Word has length 96 [2022-07-21 06:05:58,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:58,017 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1245 transitions. [2022-07-21 06:05:58,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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) [2022-07-21 06:05:58,018 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1245 transitions. [2022-07-21 06:05:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:05:58,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:58,019 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] [2022-07-21 06:05:58,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 06:05:58,020 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:58,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:58,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1839313585, now seen corresponding path program 1 times [2022-07-21 06:05:58,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:58,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991593579] [2022-07-21 06:05:58,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:58,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:58,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:58,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:58,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991593579] [2022-07-21 06:05:58,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991593579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:58,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:58,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:58,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083792050] [2022-07-21 06:05:58,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:58,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:58,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:58,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:58,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:58,116 INFO L87 Difference]: Start difference. First operand 918 states and 1245 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) [2022-07-21 06:05:59,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:59,475 INFO L93 Difference]: Finished difference Result 1850 states and 2567 transitions. [2022-07-21 06:05:59,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:59,477 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 [2022-07-21 06:05:59,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:59,479 INFO L225 Difference]: With dead ends: 1850 [2022-07-21 06:05:59,480 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:05:59,480 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 [2022-07-21 06:05:59,480 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 3889 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:59,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3889 Valid, 3149 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:05:59,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:05:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-21 06:05:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3872767857142858) internal successors, (1243), 917 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1243 transitions. [2022-07-21 06:05:59,602 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1243 transitions. Word has length 96 [2022-07-21 06:05:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:59,602 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1243 transitions. [2022-07-21 06:05:59,603 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) [2022-07-21 06:05:59,603 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1243 transitions. [2022-07-21 06:05:59,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:05:59,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:59,604 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] [2022-07-21 06:05:59,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 06:05:59,604 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:59,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:59,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1859604465, now seen corresponding path program 1 times [2022-07-21 06:05:59,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:59,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475149426] [2022-07-21 06:05:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:59,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:59,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:59,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:59,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475149426] [2022-07-21 06:05:59,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475149426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:59,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:59,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833939570] [2022-07-21 06:05:59,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:59,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:59,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:59,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:59,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:59,691 INFO L87 Difference]: Start difference. First operand 918 states and 1243 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) [2022-07-21 06:06:01,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:01,075 INFO L93 Difference]: Finished difference Result 1910 states and 2651 transitions. [2022-07-21 06:06:01,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:01,076 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 [2022-07-21 06:06:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:01,079 INFO L225 Difference]: With dead ends: 1910 [2022-07-21 06:06:01,079 INFO L226 Difference]: Without dead ends: 1718 [2022-07-21 06:06:01,080 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 [2022-07-21 06:06:01,081 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 2762 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:01,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 3366 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-07-21 06:06:01,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2022-07-21 06:06:01,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3850446428571428) internal successors, (1241), 917 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1241 transitions. [2022-07-21 06:06:01,207 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1241 transitions. Word has length 96 [2022-07-21 06:06:01,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:01,207 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1241 transitions. [2022-07-21 06:06:01,207 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) [2022-07-21 06:06:01,207 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1241 transitions. [2022-07-21 06:06:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:01,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:01,208 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] [2022-07-21 06:06:01,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 06:06:01,209 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:01,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1450759237, now seen corresponding path program 1 times [2022-07-21 06:06:01,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:01,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111870321] [2022-07-21 06:06:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:01,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:01,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111870321] [2022-07-21 06:06:01,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111870321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:01,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:01,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:01,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938861461] [2022-07-21 06:06:01,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:01,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:01,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:01,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:01,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:01,289 INFO L87 Difference]: Start difference. First operand 918 states and 1241 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) [2022-07-21 06:06:02,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:02,452 INFO L93 Difference]: Finished difference Result 1651 states and 2249 transitions. [2022-07-21 06:06:02,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:02,452 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 [2022-07-21 06:06:02,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:02,455 INFO L225 Difference]: With dead ends: 1651 [2022-07-21 06:06:02,455 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:02,455 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 [2022-07-21 06:06:02,456 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 2408 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:02,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 2154 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:02,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3828125) internal successors, (1239), 917 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1239 transitions. [2022-07-21 06:06:02,584 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1239 transitions. Word has length 96 [2022-07-21 06:06:02,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:02,584 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1239 transitions. [2022-07-21 06:06:02,584 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) [2022-07-21 06:06:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1239 transitions. [2022-07-21 06:06:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:02,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:02,586 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] [2022-07-21 06:06:02,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 06:06:02,586 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:02,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:02,586 INFO L85 PathProgramCache]: Analyzing trace with hash 627769446, now seen corresponding path program 1 times [2022-07-21 06:06:02,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:02,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243570733] [2022-07-21 06:06:02,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:02,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:02,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:02,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:02,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243570733] [2022-07-21 06:06:02,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243570733] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:02,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:02,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:02,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728096880] [2022-07-21 06:06:02,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:02,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:02,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:02,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:02,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:02,728 INFO L87 Difference]: Start difference. First operand 918 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:03,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:03,943 INFO L93 Difference]: Finished difference Result 1900 states and 2629 transitions. [2022-07-21 06:06:03,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:03,944 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 [2022-07-21 06:06:03,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:03,946 INFO L225 Difference]: With dead ends: 1900 [2022-07-21 06:06:03,947 INFO L226 Difference]: Without dead ends: 1718 [2022-07-21 06:06:03,947 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 [2022-07-21 06:06:03,948 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 3706 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3706 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 2449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:03,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 3125 Invalid, 2449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:03,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-07-21 06:06:04,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2022-07-21 06:06:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3816964285714286) internal successors, (1238), 917 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1238 transitions. [2022-07-21 06:06:04,084 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1238 transitions. Word has length 96 [2022-07-21 06:06:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:04,084 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1238 transitions. [2022-07-21 06:06:04,084 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) [2022-07-21 06:06:04,084 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1238 transitions. [2022-07-21 06:06:04,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:04,085 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:04,085 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] [2022-07-21 06:06:04,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-21 06:06:04,086 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:04,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:04,086 INFO L85 PathProgramCache]: Analyzing trace with hash 218924218, now seen corresponding path program 1 times [2022-07-21 06:06:04,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:04,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173084868] [2022-07-21 06:06:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:04,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:04,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:04,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173084868] [2022-07-21 06:06:04,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173084868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:04,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:04,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:04,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260900427] [2022-07-21 06:06:04,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:04,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:04,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:04,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:04,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:04,186 INFO L87 Difference]: Start difference. First operand 918 states and 1238 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) [2022-07-21 06:06:05,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:05,629 INFO L93 Difference]: Finished difference Result 1846 states and 2553 transitions. [2022-07-21 06:06:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:05,629 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 [2022-07-21 06:06:05,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:05,632 INFO L225 Difference]: With dead ends: 1846 [2022-07-21 06:06:05,632 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:05,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:05,633 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 3793 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3793 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 2671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:05,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3793 Valid, 3345 Invalid, 2671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:06:05,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:05,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-21 06:06:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3805803571428572) internal successors, (1237), 917 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1237 transitions. [2022-07-21 06:06:05,773 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1237 transitions. Word has length 96 [2022-07-21 06:06:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:05,773 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1237 transitions. [2022-07-21 06:06:05,773 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) [2022-07-21 06:06:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1237 transitions. [2022-07-21 06:06:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:05,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:05,774 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] [2022-07-21 06:06:05,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-21 06:06:05,775 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:05,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1223338080, now seen corresponding path program 1 times [2022-07-21 06:06:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:05,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607830779] [2022-07-21 06:06:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:05,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:05,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:05,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607830779] [2022-07-21 06:06:05,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607830779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:05,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:05,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:05,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692914618] [2022-07-21 06:06:05,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:05,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:05,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:05,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:05,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:05,874 INFO L87 Difference]: Start difference. First operand 918 states and 1237 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) [2022-07-21 06:06:07,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:07,236 INFO L93 Difference]: Finished difference Result 1842 states and 2548 transitions. [2022-07-21 06:06:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:07,236 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 [2022-07-21 06:06:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:07,239 INFO L225 Difference]: With dead ends: 1842 [2022-07-21 06:06:07,239 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:07,240 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 [2022-07-21 06:06:07,240 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 3785 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3785 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:07,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3785 Valid, 3348 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:07,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:07,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-21 06:06:07,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3794642857142858) internal successors, (1236), 917 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:07,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1236 transitions. [2022-07-21 06:06:07,380 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1236 transitions. Word has length 96 [2022-07-21 06:06:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:07,381 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1236 transitions. [2022-07-21 06:06:07,381 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) [2022-07-21 06:06:07,381 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1236 transitions. [2022-07-21 06:06:07,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:07,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:07,382 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] [2022-07-21 06:06:07,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-21 06:06:07,382 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:07,383 INFO L85 PathProgramCache]: Analyzing trace with hash -2013822329, now seen corresponding path program 1 times [2022-07-21 06:06:07,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:07,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711616630] [2022-07-21 06:06:07,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:07,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:07,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:07,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711616630] [2022-07-21 06:06:07,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711616630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:07,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:07,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:07,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120490324] [2022-07-21 06:06:07,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:07,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:07,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:07,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:07,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:07,476 INFO L87 Difference]: Start difference. First operand 918 states and 1236 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) [2022-07-21 06:06:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:08,819 INFO L93 Difference]: Finished difference Result 1891 states and 2615 transitions. [2022-07-21 06:06:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:08,819 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 [2022-07-21 06:06:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:08,822 INFO L225 Difference]: With dead ends: 1891 [2022-07-21 06:06:08,823 INFO L226 Difference]: Without dead ends: 1718 [2022-07-21 06:06:08,823 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 [2022-07-21 06:06:08,824 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 3662 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:08,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3662 Valid, 3258 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-07-21 06:06:08,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2022-07-21 06:06:08,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3783482142857142) internal successors, (1235), 917 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:08,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1235 transitions. [2022-07-21 06:06:08,971 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1235 transitions. Word has length 96 [2022-07-21 06:06:08,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:08,973 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1235 transitions. [2022-07-21 06:06:08,973 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) [2022-07-21 06:06:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1235 transitions. [2022-07-21 06:06:08,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:08,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:08,975 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] [2022-07-21 06:06:08,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-21 06:06:08,975 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:08,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:08,975 INFO L85 PathProgramCache]: Analyzing trace with hash -236760265, now seen corresponding path program 1 times [2022-07-21 06:06:08,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:08,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96622935] [2022-07-21 06:06:08,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:08,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:09,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:09,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96622935] [2022-07-21 06:06:09,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96622935] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:09,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:09,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:09,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849355477] [2022-07-21 06:06:09,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:09,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:09,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:09,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:09,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:09,068 INFO L87 Difference]: Start difference. First operand 918 states and 1235 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) [2022-07-21 06:06:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:10,524 INFO L93 Difference]: Finished difference Result 1842 states and 2546 transitions. [2022-07-21 06:06:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:10,525 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 [2022-07-21 06:06:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:10,543 INFO L225 Difference]: With dead ends: 1842 [2022-07-21 06:06:10,544 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:10,545 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 [2022-07-21 06:06:10,545 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 3646 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 2793 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 3643 SdHoareTripleChecker+Invalid, 2888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:10,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 3643 Invalid, 2888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2793 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:10,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-21 06:06:10,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3772321428571428) internal successors, (1234), 917 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:10,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1234 transitions. [2022-07-21 06:06:10,777 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1234 transitions. Word has length 96 [2022-07-21 06:06:10,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:10,778 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1234 transitions. [2022-07-21 06:06:10,778 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) [2022-07-21 06:06:10,778 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1234 transitions. [2022-07-21 06:06:10,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:10,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:10,779 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] [2022-07-21 06:06:10,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-21 06:06:10,779 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:10,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:10,780 INFO L85 PathProgramCache]: Analyzing trace with hash -872854485, now seen corresponding path program 1 times [2022-07-21 06:06:10,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:10,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232129158] [2022-07-21 06:06:10,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:10,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:10,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:10,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232129158] [2022-07-21 06:06:10,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232129158] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:10,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:10,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:10,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544876950] [2022-07-21 06:06:10,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:10,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:10,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:10,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:10,885 INFO L87 Difference]: Start difference. First operand 918 states and 1234 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) [2022-07-21 06:06:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:12,195 INFO L93 Difference]: Finished difference Result 1651 states and 2240 transitions. [2022-07-21 06:06:12,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:12,195 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 [2022-07-21 06:06:12,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:12,212 INFO L225 Difference]: With dead ends: 1651 [2022-07-21 06:06:12,212 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:12,213 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 [2022-07-21 06:06:12,213 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 3400 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3400 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:12,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3400 Valid, 2234 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:12,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:12,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3761160714285714) internal successors, (1233), 917 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:12,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1233 transitions. [2022-07-21 06:06:12,381 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1233 transitions. Word has length 96 [2022-07-21 06:06:12,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:12,381 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1233 transitions. [2022-07-21 06:06:12,381 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) [2022-07-21 06:06:12,382 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1233 transitions. [2022-07-21 06:06:12,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:12,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:12,383 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] [2022-07-21 06:06:12,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-21 06:06:12,383 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:12,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:12,385 INFO L85 PathProgramCache]: Analyzing trace with hash -35876805, now seen corresponding path program 1 times [2022-07-21 06:06:12,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:12,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310995530] [2022-07-21 06:06:12,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:12,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:12,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:12,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310995530] [2022-07-21 06:06:12,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310995530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:12,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:12,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:06:12,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023488592] [2022-07-21 06:06:12,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:12,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:06:12,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:12,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:06:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:06:12,557 INFO L87 Difference]: Start difference. First operand 918 states and 1233 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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) [2022-07-21 06:06:15,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:15,120 INFO L93 Difference]: Finished difference Result 2754 states and 3874 transitions. [2022-07-21 06:06:15,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:06:15,121 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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 [2022-07-21 06:06:15,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:15,125 INFO L225 Difference]: With dead ends: 2754 [2022-07-21 06:06:15,125 INFO L226 Difference]: Without dead ends: 2598 [2022-07-21 06:06:15,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:06:15,126 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 5898 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5898 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 3598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:15,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5898 Valid, 3703 Invalid, 3598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 06:06:15,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2022-07-21 06:06:15,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 922. [2022-07-21 06:06:15,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3744444444444444) internal successors, (1237), 921 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:15,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1237 transitions. [2022-07-21 06:06:15,290 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1237 transitions. Word has length 96 [2022-07-21 06:06:15,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:15,291 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1237 transitions. [2022-07-21 06:06:15,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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) [2022-07-21 06:06:15,291 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1237 transitions. [2022-07-21 06:06:15,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:15,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:15,292 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] [2022-07-21 06:06:15,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-21 06:06:15,293 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:15,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:15,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1688520017, now seen corresponding path program 1 times [2022-07-21 06:06:15,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:15,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300686706] [2022-07-21 06:06:15,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:15,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:15,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:15,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:15,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300686706] [2022-07-21 06:06:15,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300686706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:15,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:15,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:15,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807003091] [2022-07-21 06:06:15,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:15,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:15,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:15,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:15,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:15,414 INFO L87 Difference]: Start difference. First operand 922 states and 1237 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) [2022-07-21 06:06:16,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:16,832 INFO L93 Difference]: Finished difference Result 1841 states and 2541 transitions. [2022-07-21 06:06:16,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:16,833 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 [2022-07-21 06:06:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:16,835 INFO L225 Difference]: With dead ends: 1841 [2022-07-21 06:06:16,835 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:16,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:16,836 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 3749 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3749 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:16,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3749 Valid, 3405 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:16,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:16,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 922. [2022-07-21 06:06:16,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3733333333333333) internal successors, (1236), 921 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1236 transitions. [2022-07-21 06:06:16,994 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1236 transitions. Word has length 96 [2022-07-21 06:06:16,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:16,995 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1236 transitions. [2022-07-21 06:06:16,995 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) [2022-07-21 06:06:16,995 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1236 transitions. [2022-07-21 06:06:16,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:16,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:16,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:06:16,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-21 06:06:16,996 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)] === [2022-07-21 06:06:16,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:16,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1446549018, now seen corresponding path program 1 times [2022-07-21 06:06:16,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:16,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429186823] [2022-07-21 06:06:16,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:16,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:17,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:17,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429186823] [2022-07-21 06:06:17,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429186823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:17,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:17,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:17,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641057344] [2022-07-21 06:06:17,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:17,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:17,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:17,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:17,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:17,093 INFO L87 Difference]: Start difference. First operand 922 states and 1236 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) [2022-07-21 06:06:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:18,448 INFO L93 Difference]: Finished difference Result 1852 states and 2553 transitions. [2022-07-21 06:06:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:18,448 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 [2022-07-21 06:06:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:18,451 INFO L225 Difference]: With dead ends: 1852 [2022-07-21 06:06:18,451 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:18,451 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 [2022-07-21 06:06:18,452 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 3966 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:18,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3966 Valid, 2965 Invalid, 2404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:18,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:18,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 914. [2022-07-21 06:06:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 892 states have (on average 1.3744394618834082) internal successors, (1226), 913 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:18,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1226 transitions. [2022-07-21 06:06:18,613 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1226 transitions. Word has length 97 [2022-07-21 06:06:18,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:18,614 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1226 transitions. [2022-07-21 06:06:18,614 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) [2022-07-21 06:06:18,614 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1226 transitions. [2022-07-21 06:06:18,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:18,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:18,615 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] [2022-07-21 06:06:18,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-21 06:06:18,615 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:18,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:18,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1542766093, now seen corresponding path program 1 times [2022-07-21 06:06:18,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:18,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405894387] [2022-07-21 06:06:18,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:18,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:18,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:18,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405894387] [2022-07-21 06:06:18,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405894387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:18,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:18,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:18,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258631248] [2022-07-21 06:06:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:18,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:18,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:18,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:18,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:18,709 INFO L87 Difference]: Start difference. First operand 914 states and 1226 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) [2022-07-21 06:06:20,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:20,129 INFO L93 Difference]: Finished difference Result 1842 states and 2539 transitions. [2022-07-21 06:06:20,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:20,129 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 [2022-07-21 06:06:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:20,131 INFO L225 Difference]: With dead ends: 1842 [2022-07-21 06:06:20,131 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:20,132 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 [2022-07-21 06:06:20,132 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 2810 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 2585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:20,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 3167 Invalid, 2585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:20,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:20,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-07-21 06:06:20,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.375) internal successors, (1221), 909 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1221 transitions. [2022-07-21 06:06:20,318 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1221 transitions. Word has length 97 [2022-07-21 06:06:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:20,318 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1221 transitions. [2022-07-21 06:06:20,318 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) [2022-07-21 06:06:20,318 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1221 transitions. [2022-07-21 06:06:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:20,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:20,320 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, 1, 1, 1] [2022-07-21 06:06:20,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-21 06:06:20,320 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:20,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:20,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1799558176, now seen corresponding path program 1 times [2022-07-21 06:06:20,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:20,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744208142] [2022-07-21 06:06:20,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:20,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:20,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:20,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744208142] [2022-07-21 06:06:20,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744208142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:20,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:20,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:20,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903629008] [2022-07-21 06:06:20,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:20,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:20,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:20,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:20,413 INFO L87 Difference]: Start difference. First operand 910 states and 1221 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) [2022-07-21 06:06:21,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:21,617 INFO L93 Difference]: Finished difference Result 1794 states and 2451 transitions. [2022-07-21 06:06:21,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:21,617 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 [2022-07-21 06:06:21,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:21,619 INFO L225 Difference]: With dead ends: 1794 [2022-07-21 06:06:21,619 INFO L226 Difference]: Without dead ends: 1638 [2022-07-21 06:06:21,620 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 [2022-07-21 06:06:21,620 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 3814 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3814 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:21,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3814 Valid, 2888 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:21,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-21 06:06:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-07-21 06:06:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3727477477477477) internal successors, (1219), 909 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1219 transitions. [2022-07-21 06:06:21,807 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1219 transitions. Word has length 98 [2022-07-21 06:06:21,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:21,808 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1219 transitions. [2022-07-21 06:06:21,808 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) [2022-07-21 06:06:21,808 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1219 transitions. [2022-07-21 06:06:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:21,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:21,809 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] [2022-07-21 06:06:21,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-21 06:06:21,810 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:21,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash 112638926, now seen corresponding path program 1 times [2022-07-21 06:06:21,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:21,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080826693] [2022-07-21 06:06:21,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:21,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:21,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:21,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080826693] [2022-07-21 06:06:21,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080826693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:21,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:21,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:06:21,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094160250] [2022-07-21 06:06:21,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:21,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:06:21,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:21,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:06:21,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:06:21,949 INFO L87 Difference]: Start difference. First operand 910 states and 1219 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) [2022-07-21 06:06:24,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:24,533 INFO L93 Difference]: Finished difference Result 2786 states and 3903 transitions. [2022-07-21 06:06:24,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:06:24,533 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 [2022-07-21 06:06:24,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:24,536 INFO L225 Difference]: With dead ends: 2786 [2022-07-21 06:06:24,536 INFO L226 Difference]: Without dead ends: 2614 [2022-07-21 06:06:24,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:06:24,537 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 6948 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6948 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 3957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 708 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:24,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6948 Valid, 4103 Invalid, 3957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [708 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 06:06:24,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2614 states. [2022-07-21 06:06:24,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2614 to 918. [2022-07-21 06:06:24,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3694196428571428) internal successors, (1227), 917 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:24,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1227 transitions. [2022-07-21 06:06:24,739 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1227 transitions. Word has length 98 [2022-07-21 06:06:24,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:24,740 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1227 transitions. [2022-07-21 06:06:24,740 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) [2022-07-21 06:06:24,740 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1227 transitions. [2022-07-21 06:06:24,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:24,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:24,741 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] [2022-07-21 06:06:24,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-21 06:06:24,741 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:24,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash 385217934, now seen corresponding path program 1 times [2022-07-21 06:06:24,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:24,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143550344] [2022-07-21 06:06:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:24,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:24,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:24,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143550344] [2022-07-21 06:06:24,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143550344] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:24,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:24,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:24,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613299472] [2022-07-21 06:06:24,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:24,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:24,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:24,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:24,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:24,843 INFO L87 Difference]: Start difference. First operand 918 states and 1227 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) [2022-07-21 06:06:26,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:26,378 INFO L93 Difference]: Finished difference Result 1856 states and 2548 transitions. [2022-07-21 06:06:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:26,378 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 [2022-07-21 06:06:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:26,381 INFO L225 Difference]: With dead ends: 1856 [2022-07-21 06:06:26,381 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:26,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:26,382 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 4113 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:26,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 3254 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2415 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-21 06:06:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3671875) internal successors, (1225), 917 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1225 transitions. [2022-07-21 06:06:26,568 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1225 transitions. Word has length 98 [2022-07-21 06:06:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:26,568 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1225 transitions. [2022-07-21 06:06:26,568 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) [2022-07-21 06:06:26,568 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1225 transitions. [2022-07-21 06:06:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:26,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:26,570 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] [2022-07-21 06:06:26,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-21 06:06:26,570 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:26,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:26,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1288712520, now seen corresponding path program 1 times [2022-07-21 06:06:26,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:26,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482346534] [2022-07-21 06:06:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:26,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:26,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:26,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482346534] [2022-07-21 06:06:26,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482346534] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:26,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:26,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851155957] [2022-07-21 06:06:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:26,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:26,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:26,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:26,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:26,692 INFO L87 Difference]: Start difference. First operand 918 states and 1225 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) [2022-07-21 06:06:28,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:28,058 INFO L93 Difference]: Finished difference Result 1798 states and 2450 transitions. [2022-07-21 06:06:28,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:28,059 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 [2022-07-21 06:06:28,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:28,061 INFO L225 Difference]: With dead ends: 1798 [2022-07-21 06:06:28,061 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:28,062 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 [2022-07-21 06:06:28,062 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 3270 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 1893 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:28,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 2348 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1893 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3649553571428572) internal successors, (1223), 917 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:28,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1223 transitions. [2022-07-21 06:06:28,248 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1223 transitions. Word has length 98 [2022-07-21 06:06:28,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:28,248 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1223 transitions. [2022-07-21 06:06:28,248 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) [2022-07-21 06:06:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1223 transitions. [2022-07-21 06:06:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:28,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:28,250 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] [2022-07-21 06:06:28,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-21 06:06:28,250 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:28,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:28,251 INFO L85 PathProgramCache]: Analyzing trace with hash -285632464, now seen corresponding path program 1 times [2022-07-21 06:06:28,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:28,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412639227] [2022-07-21 06:06:28,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:28,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:28,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:28,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412639227] [2022-07-21 06:06:28,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412639227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:28,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:28,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:28,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648053821] [2022-07-21 06:06:28,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:28,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:28,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:28,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:28,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:28,335 INFO L87 Difference]: Start difference. First operand 918 states and 1223 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) [2022-07-21 06:06:29,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:29,713 INFO L93 Difference]: Finished difference Result 1930 states and 2648 transitions. [2022-07-21 06:06:29,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:29,713 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 [2022-07-21 06:06:29,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:29,716 INFO L225 Difference]: With dead ends: 1930 [2022-07-21 06:06:29,716 INFO L226 Difference]: Without dead ends: 1718 [2022-07-21 06:06:29,717 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 [2022-07-21 06:06:29,717 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 2107 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:29,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 3101 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:29,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-07-21 06:06:29,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2022-07-21 06:06:29,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3627232142857142) internal successors, (1221), 917 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:29,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1221 transitions. [2022-07-21 06:06:29,905 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1221 transitions. Word has length 98 [2022-07-21 06:06:29,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:29,905 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1221 transitions. [2022-07-21 06:06:29,906 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) [2022-07-21 06:06:29,906 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1221 transitions. [2022-07-21 06:06:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:29,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:29,907 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] [2022-07-21 06:06:29,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-21 06:06:29,907 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash 131410264, now seen corresponding path program 1 times [2022-07-21 06:06:29,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:29,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138414138] [2022-07-21 06:06:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:29,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:30,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:30,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138414138] [2022-07-21 06:06:30,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138414138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:30,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:30,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:30,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651958011] [2022-07-21 06:06:30,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:30,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:30,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:30,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:30,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:30,003 INFO L87 Difference]: Start difference. First operand 918 states and 1221 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) [2022-07-21 06:06:31,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:31,360 INFO L93 Difference]: Finished difference Result 1802 states and 2451 transitions. [2022-07-21 06:06:31,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:31,360 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 [2022-07-21 06:06:31,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:31,362 INFO L225 Difference]: With dead ends: 1802 [2022-07-21 06:06:31,362 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:31,363 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 [2022-07-21 06:06:31,363 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 3266 mSDsluCounter, 1780 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:31,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3266 Valid, 2348 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:31,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:31,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3604910714285714) internal successors, (1219), 917 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1219 transitions. [2022-07-21 06:06:31,558 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1219 transitions. Word has length 98 [2022-07-21 06:06:31,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:31,558 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1219 transitions. [2022-07-21 06:06:31,558 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) [2022-07-21 06:06:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1219 transitions. [2022-07-21 06:06:31,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:31,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:31,560 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] [2022-07-21 06:06:31,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-21 06:06:31,561 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:31,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:31,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2043607366, now seen corresponding path program 1 times [2022-07-21 06:06:31,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:31,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320539397] [2022-07-21 06:06:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:31,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:31,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:31,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320539397] [2022-07-21 06:06:31,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320539397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:31,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:31,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:31,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347564212] [2022-07-21 06:06:31,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:31,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:31,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:31,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:31,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:31,649 INFO L87 Difference]: Start difference. First operand 918 states and 1219 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) [2022-07-21 06:06:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:33,157 INFO L93 Difference]: Finished difference Result 1858 states and 2543 transitions. [2022-07-21 06:06:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:33,157 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 [2022-07-21 06:06:33,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:33,160 INFO L225 Difference]: With dead ends: 1858 [2022-07-21 06:06:33,160 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:33,161 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 [2022-07-21 06:06:33,161 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 3573 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:33,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3573 Valid, 3736 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:33,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:33,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-21 06:06:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3582589285714286) internal successors, (1217), 917 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:33,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1217 transitions. [2022-07-21 06:06:33,356 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1217 transitions. Word has length 98 [2022-07-21 06:06:33,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:33,356 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1217 transitions. [2022-07-21 06:06:33,356 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) [2022-07-21 06:06:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1217 transitions. [2022-07-21 06:06:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:33,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:33,358 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] [2022-07-21 06:06:33,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-21 06:06:33,358 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:33,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:33,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1144212400, now seen corresponding path program 1 times [2022-07-21 06:06:33,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:33,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845108964] [2022-07-21 06:06:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:33,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:33,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845108964] [2022-07-21 06:06:33,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845108964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:33,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:33,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:33,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079679053] [2022-07-21 06:06:33,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:33,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:33,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:33,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:33,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:33,420 INFO L87 Difference]: Start difference. First operand 918 states and 1217 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) [2022-07-21 06:06:34,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:34,739 INFO L93 Difference]: Finished difference Result 1798 states and 2442 transitions. [2022-07-21 06:06:34,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:34,739 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 [2022-07-21 06:06:34,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:34,741 INFO L225 Difference]: With dead ends: 1798 [2022-07-21 06:06:34,742 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:34,742 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 [2022-07-21 06:06:34,743 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 2149 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:34,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 2606 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:34,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:34,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:34,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3560267857142858) internal successors, (1215), 917 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:34,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1215 transitions. [2022-07-21 06:06:34,940 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1215 transitions. Word has length 98 [2022-07-21 06:06:34,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:34,940 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1215 transitions. [2022-07-21 06:06:34,940 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) [2022-07-21 06:06:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1215 transitions. [2022-07-21 06:06:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:34,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:34,942 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] [2022-07-21 06:06:34,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-21 06:06:34,942 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:34,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:34,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1885152984, now seen corresponding path program 1 times [2022-07-21 06:06:34,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:34,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471320640] [2022-07-21 06:06:34,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:34,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:35,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:35,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471320640] [2022-07-21 06:06:35,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471320640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:35,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:35,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:35,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648457799] [2022-07-21 06:06:35,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:35,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:35,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:35,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:35,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:35,014 INFO L87 Difference]: Start difference. First operand 918 states and 1215 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) [2022-07-21 06:06:36,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:36,498 INFO L93 Difference]: Finished difference Result 1651 states and 2220 transitions. [2022-07-21 06:06:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:36,498 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 [2022-07-21 06:06:36,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:36,500 INFO L225 Difference]: With dead ends: 1651 [2022-07-21 06:06:36,500 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:36,501 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 [2022-07-21 06:06:36,501 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 2038 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:36,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 2770 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:36,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:36,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3537946428571428) internal successors, (1213), 917 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1213 transitions. [2022-07-21 06:06:36,705 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1213 transitions. Word has length 98 [2022-07-21 06:06:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:36,707 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1213 transitions. [2022-07-21 06:06:36,707 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) [2022-07-21 06:06:36,707 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1213 transitions. [2022-07-21 06:06:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:36,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:36,709 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] [2022-07-21 06:06:36,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-21 06:06:36,709 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:36,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:36,710 INFO L85 PathProgramCache]: Analyzing trace with hash -495518324, now seen corresponding path program 1 times [2022-07-21 06:06:36,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:36,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069132862] [2022-07-21 06:06:36,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:36,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:36,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:36,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:36,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069132862] [2022-07-21 06:06:36,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069132862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:36,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:36,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:36,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525679524] [2022-07-21 06:06:36,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:36,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:36,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:36,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:36,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:36,788 INFO L87 Difference]: Start difference. First operand 918 states and 1213 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) [2022-07-21 06:06:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:38,249 INFO L93 Difference]: Finished difference Result 1798 states and 2436 transitions. [2022-07-21 06:06:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:38,249 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 [2022-07-21 06:06:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:38,251 INFO L225 Difference]: With dead ends: 1798 [2022-07-21 06:06:38,251 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:38,252 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 [2022-07-21 06:06:38,252 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 3102 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:38,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 2574 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:38,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:38,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:38,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3515625) internal successors, (1211), 917 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1211 transitions. [2022-07-21 06:06:38,456 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1211 transitions. Word has length 98 [2022-07-21 06:06:38,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:38,456 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1211 transitions. [2022-07-21 06:06:38,456 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) [2022-07-21 06:06:38,457 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1211 transitions. [2022-07-21 06:06:38,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:38,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:38,458 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] [2022-07-21 06:06:38,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-21 06:06:38,458 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:38,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:38,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2030828310, now seen corresponding path program 1 times [2022-07-21 06:06:38,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:38,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819988349] [2022-07-21 06:06:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:38,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:38,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:38,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819988349] [2022-07-21 06:06:38,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819988349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:38,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:38,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:38,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008875519] [2022-07-21 06:06:38,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:38,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:38,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:38,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:38,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:38,529 INFO L87 Difference]: Start difference. First operand 918 states and 1211 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) [2022-07-21 06:06:39,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:39,764 INFO L93 Difference]: Finished difference Result 1794 states and 2428 transitions. [2022-07-21 06:06:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:39,764 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 [2022-07-21 06:06:39,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:39,767 INFO L225 Difference]: With dead ends: 1794 [2022-07-21 06:06:39,767 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:39,767 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 [2022-07-21 06:06:39,768 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3587 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3587 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:39,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3587 Valid, 2400 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:06:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:39,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3493303571428572) internal successors, (1209), 917 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1209 transitions. [2022-07-21 06:06:39,976 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1209 transitions. Word has length 98 [2022-07-21 06:06:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:39,976 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1209 transitions. [2022-07-21 06:06:39,976 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) [2022-07-21 06:06:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1209 transitions. [2022-07-21 06:06:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:39,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:39,978 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] [2022-07-21 06:06:39,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-21 06:06:39,978 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:39,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:39,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1081413880, now seen corresponding path program 1 times [2022-07-21 06:06:39,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:39,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874244743] [2022-07-21 06:06:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:40,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:40,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874244743] [2022-07-21 06:06:40,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874244743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:40,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:40,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:40,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315087838] [2022-07-21 06:06:40,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:40,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:40,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:40,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:40,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:40,047 INFO L87 Difference]: Start difference. First operand 918 states and 1209 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) [2022-07-21 06:06:41,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:41,410 INFO L93 Difference]: Finished difference Result 1651 states and 2210 transitions. [2022-07-21 06:06:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:41,411 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 [2022-07-21 06:06:41,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:41,413 INFO L225 Difference]: With dead ends: 1651 [2022-07-21 06:06:41,413 INFO L226 Difference]: Without dead ends: 1646 [2022-07-21 06:06:41,413 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 [2022-07-21 06:06:41,415 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 4177 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4177 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:41,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4177 Valid, 2401 Invalid, 2103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:41,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-21 06:06:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-21 06:06:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3470982142857142) internal successors, (1207), 917 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1207 transitions. [2022-07-21 06:06:41,639 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1207 transitions. Word has length 98 [2022-07-21 06:06:41,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:41,639 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1207 transitions. [2022-07-21 06:06:41,639 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) [2022-07-21 06:06:41,639 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1207 transitions. [2022-07-21 06:06:41,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:41,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:41,640 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] [2022-07-21 06:06:41,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-21 06:06:41,640 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:41,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:41,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1301356314, now seen corresponding path program 1 times [2022-07-21 06:06:41,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:41,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866127762] [2022-07-21 06:06:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:41,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:41,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:41,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866127762] [2022-07-21 06:06:41,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866127762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:41,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:41,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:06:41,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182923455] [2022-07-21 06:06:41,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:41,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:06:41,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:41,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:06:41,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:06:41,780 INFO L87 Difference]: Start difference. First operand 918 states and 1207 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) [2022-07-21 06:06:44,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:44,706 INFO L93 Difference]: Finished difference Result 2624 states and 3631 transitions. [2022-07-21 06:06:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:06:44,706 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 [2022-07-21 06:06:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:44,709 INFO L225 Difference]: With dead ends: 2624 [2022-07-21 06:06:44,709 INFO L226 Difference]: Without dead ends: 2607 [2022-07-21 06:06:44,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:06:44,713 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 6816 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 2632 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6816 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 2632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:44,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6816 Valid, 3434 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 2632 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 06:06:44,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2022-07-21 06:06:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 926. [2022-07-21 06:06:44,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3440265486725664) internal successors, (1215), 925 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1215 transitions. [2022-07-21 06:06:44,938 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1215 transitions. Word has length 98 [2022-07-21 06:06:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:44,938 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1215 transitions. [2022-07-21 06:06:44,939 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) [2022-07-21 06:06:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1215 transitions. [2022-07-21 06:06:44,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:44,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:44,940 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] [2022-07-21 06:06:44,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-21 06:06:44,941 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:44,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1591996391, now seen corresponding path program 1 times [2022-07-21 06:06:44,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:44,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926653606] [2022-07-21 06:06:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:44,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:45,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:45,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926653606] [2022-07-21 06:06:45,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926653606] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:45,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:45,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:45,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742481570] [2022-07-21 06:06:45,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:45,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:45,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:45,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:45,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:45,066 INFO L87 Difference]: Start difference. First operand 926 states and 1215 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) [2022-07-21 06:06:46,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:46,419 INFO L93 Difference]: Finished difference Result 1806 states and 2436 transitions. [2022-07-21 06:06:46,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:46,419 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 [2022-07-21 06:06:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:46,421 INFO L225 Difference]: With dead ends: 1806 [2022-07-21 06:06:46,421 INFO L226 Difference]: Without dead ends: 1654 [2022-07-21 06:06:46,423 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 [2022-07-21 06:06:46,424 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 2235 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:46,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 2404 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:06:46,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-07-21 06:06:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 926. [2022-07-21 06:06:46,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3418141592920354) internal successors, (1213), 925 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1213 transitions. [2022-07-21 06:06:46,677 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1213 transitions. Word has length 98 [2022-07-21 06:06:46,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:46,677 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1213 transitions. [2022-07-21 06:06:46,677 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) [2022-07-21 06:06:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1213 transitions. [2022-07-21 06:06:46,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:46,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:46,678 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] [2022-07-21 06:06:46,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-21 06:06:46,679 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:46,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1028777306, now seen corresponding path program 1 times [2022-07-21 06:06:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:46,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588597355] [2022-07-21 06:06:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:46,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:46,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588597355] [2022-07-21 06:06:46,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588597355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:46,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:46,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:46,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555918147] [2022-07-21 06:06:46,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:46,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:46,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:46,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:46,773 INFO L87 Difference]: Start difference. First operand 926 states and 1213 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) [2022-07-21 06:06:48,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:48,583 INFO L93 Difference]: Finished difference Result 1852 states and 2512 transitions. [2022-07-21 06:06:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:48,583 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 [2022-07-21 06:06:48,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:48,586 INFO L225 Difference]: With dead ends: 1852 [2022-07-21 06:06:48,586 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:06:48,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:48,587 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 3559 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 2705 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:48,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 3681 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2705 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:06:48,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:06:48,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 926. [2022-07-21 06:06:48,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3396017699115044) internal successors, (1211), 925 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1211 transitions. [2022-07-21 06:06:48,813 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1211 transitions. Word has length 98 [2022-07-21 06:06:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:48,814 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1211 transitions. [2022-07-21 06:06:48,814 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) [2022-07-21 06:06:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1211 transitions. [2022-07-21 06:06:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:48,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:48,815 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] [2022-07-21 06:06:48,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-21 06:06:48,816 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:48,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:48,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1596017491, now seen corresponding path program 1 times [2022-07-21 06:06:48,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:48,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677457378] [2022-07-21 06:06:48,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:48,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:48,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:48,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677457378] [2022-07-21 06:06:48,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677457378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:48,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:48,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:48,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105415959] [2022-07-21 06:06:48,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:48,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:48,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:48,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:48,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:48,899 INFO L87 Difference]: Start difference. First operand 926 states and 1211 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) [2022-07-21 06:06:50,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:50,558 INFO L93 Difference]: Finished difference Result 1807 states and 2433 transitions. [2022-07-21 06:06:50,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:50,558 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 [2022-07-21 06:06:50,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:50,560 INFO L225 Difference]: With dead ends: 1807 [2022-07-21 06:06:50,560 INFO L226 Difference]: Without dead ends: 1654 [2022-07-21 06:06:50,561 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 [2022-07-21 06:06:50,561 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 3712 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 3008 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:50,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 3008 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-07-21 06:06:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 926. [2022-07-21 06:06:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3384955752212389) internal successors, (1210), 925 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1210 transitions. [2022-07-21 06:06:50,801 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1210 transitions. Word has length 98 [2022-07-21 06:06:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:50,802 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1210 transitions. [2022-07-21 06:06:50,802 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) [2022-07-21 06:06:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1210 transitions. [2022-07-21 06:06:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:50,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:50,803 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] [2022-07-21 06:06:50,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-21 06:06:50,804 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:50,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:50,804 INFO L85 PathProgramCache]: Analyzing trace with hash 316179611, now seen corresponding path program 1 times [2022-07-21 06:06:50,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:50,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218621911] [2022-07-21 06:06:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:50,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:50,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:50,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218621911] [2022-07-21 06:06:50,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218621911] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:50,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:50,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:06:50,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214010840] [2022-07-21 06:06:50,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:50,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:06:50,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:50,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:06:50,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:06:50,933 INFO L87 Difference]: Start difference. First operand 926 states and 1210 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) [2022-07-21 06:06:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:53,903 INFO L93 Difference]: Finished difference Result 2772 states and 3845 transitions. [2022-07-21 06:06:53,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:06:53,904 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 [2022-07-21 06:06:53,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:53,907 INFO L225 Difference]: With dead ends: 2772 [2022-07-21 06:06:53,907 INFO L226 Difference]: Without dead ends: 2607 [2022-07-21 06:06:53,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:06:53,908 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 5785 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5785 SdHoareTripleChecker+Valid, 3393 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:53,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5785 Valid, 3393 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 06:06:53,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2022-07-21 06:06:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 930. [2022-07-21 06:06:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 908 states have (on average 1.3370044052863437) internal successors, (1214), 929 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:54,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1214 transitions. [2022-07-21 06:06:54,162 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1214 transitions. Word has length 98 [2022-07-21 06:06:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:54,163 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1214 transitions. [2022-07-21 06:06:54,163 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) [2022-07-21 06:06:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1214 transitions. [2022-07-21 06:06:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:54,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:54,164 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] [2022-07-21 06:06:54,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-21 06:06:54,164 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:54,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1085915592, now seen corresponding path program 1 times [2022-07-21 06:06:54,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:54,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490791151] [2022-07-21 06:06:54,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:54,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:54,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:54,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490791151] [2022-07-21 06:06:54,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490791151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:54,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:54,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:54,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654455599] [2022-07-21 06:06:54,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:54,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:54,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:54,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:54,234 INFO L87 Difference]: Start difference. First operand 930 states and 1214 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) [2022-07-21 06:06:55,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:55,694 INFO L93 Difference]: Finished difference Result 1808 states and 2433 transitions. [2022-07-21 06:06:55,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:55,695 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 [2022-07-21 06:06:55,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:55,697 INFO L225 Difference]: With dead ends: 1808 [2022-07-21 06:06:55,697 INFO L226 Difference]: Without dead ends: 1658 [2022-07-21 06:06:55,697 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 [2022-07-21 06:06:55,698 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2982 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2982 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:55,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2982 Valid, 2618 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-07-21 06:06:55,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 930. [2022-07-21 06:06:55,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 908 states have (on average 1.3359030837004404) internal successors, (1213), 929 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1213 transitions. [2022-07-21 06:06:55,945 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1213 transitions. Word has length 98 [2022-07-21 06:06:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:55,945 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1213 transitions. [2022-07-21 06:06:55,945 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) [2022-07-21 06:06:55,946 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1213 transitions. [2022-07-21 06:06:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:55,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:55,947 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] [2022-07-21 06:06:55,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-21 06:06:55,947 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:55,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1943813230, now seen corresponding path program 1 times [2022-07-21 06:06:55,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:55,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161541622] [2022-07-21 06:06:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:55,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:56,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:56,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161541622] [2022-07-21 06:06:56,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161541622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:56,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:56,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:06:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505526481] [2022-07-21 06:06:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:56,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:06:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:56,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:06:56,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:06:56,083 INFO L87 Difference]: Start difference. First operand 930 states and 1213 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) [2022-07-21 06:06:58,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:58,997 INFO L93 Difference]: Finished difference Result 2560 states and 3520 transitions. [2022-07-21 06:06:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:06:58,997 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 [2022-07-21 06:06:58,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:58,999 INFO L225 Difference]: With dead ends: 2560 [2022-07-21 06:06:59,000 INFO L226 Difference]: Without dead ends: 2407 [2022-07-21 06:06:59,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:06:59,000 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 6905 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6905 SdHoareTripleChecker+Valid, 3445 SdHoareTripleChecker+Invalid, 3707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 946 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:59,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6905 Valid, 3445 Invalid, 3707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [946 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 06:06:59,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2022-07-21 06:06:59,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 934. [2022-07-21 06:06:59,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3344298245614035) internal successors, (1217), 933 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:59,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1217 transitions. [2022-07-21 06:06:59,263 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1217 transitions. Word has length 98 [2022-07-21 06:06:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:59,263 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1217 transitions. [2022-07-21 06:06:59,264 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) [2022-07-21 06:06:59,264 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1217 transitions. [2022-07-21 06:06:59,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:59,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:59,265 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, 1] [2022-07-21 06:06:59,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-21 06:06:59,265 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:59,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1615258738, now seen corresponding path program 1 times [2022-07-21 06:06:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:59,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812909236] [2022-07-21 06:06:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:59,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:59,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:59,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812909236] [2022-07-21 06:06:59,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812909236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:59,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:59,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:06:59,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988143614] [2022-07-21 06:06:59,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:59,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:06:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:59,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:06:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:06:59,415 INFO L87 Difference]: Start difference. First operand 934 states and 1217 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) [2022-07-21 06:07:02,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:02,563 INFO L93 Difference]: Finished difference Result 2766 states and 3837 transitions. [2022-07-21 06:07:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:07:02,563 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 [2022-07-21 06:07:02,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:02,566 INFO L225 Difference]: With dead ends: 2766 [2022-07-21 06:07:02,566 INFO L226 Difference]: Without dead ends: 2606 [2022-07-21 06:07:02,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:07:02,567 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 6554 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6554 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 3062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:02,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6554 Valid, 3237 Invalid, 3062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 2439 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 06:07:02,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-07-21 06:07:02,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 938. [2022-07-21 06:07:02,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3329694323144106) internal successors, (1221), 937 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1221 transitions. [2022-07-21 06:07:02,843 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1221 transitions. Word has length 98 [2022-07-21 06:07:02,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:02,844 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1221 transitions. [2022-07-21 06:07:02,844 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) [2022-07-21 06:07:02,844 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1221 transitions. [2022-07-21 06:07:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:02,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:02,845 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] [2022-07-21 06:07:02,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-21 06:07:02,845 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:02,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:02,846 INFO L85 PathProgramCache]: Analyzing trace with hash 472842913, now seen corresponding path program 1 times [2022-07-21 06:07:02,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:02,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79041488] [2022-07-21 06:07:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:02,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:02,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:02,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:02,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79041488] [2022-07-21 06:07:02,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79041488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:02,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:02,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:02,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692346084] [2022-07-21 06:07:02,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:02,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:02,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:02,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:02,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:02,916 INFO L87 Difference]: Start difference. First operand 938 states and 1221 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) [2022-07-21 06:07:04,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:04,604 INFO L93 Difference]: Finished difference Result 1812 states and 2435 transitions. [2022-07-21 06:07:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:04,605 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 [2022-07-21 06:07:04,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:04,607 INFO L225 Difference]: With dead ends: 1812 [2022-07-21 06:07:04,607 INFO L226 Difference]: Without dead ends: 1662 [2022-07-21 06:07:04,607 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 [2022-07-21 06:07:04,608 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 3843 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3843 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:04,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3843 Valid, 2618 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:04,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-21 06:07:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-21 06:07:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.331877729257642) internal successors, (1220), 937 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1220 transitions. [2022-07-21 06:07:04,889 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1220 transitions. Word has length 98 [2022-07-21 06:07:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:04,889 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1220 transitions. [2022-07-21 06:07:04,889 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) [2022-07-21 06:07:04,890 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1220 transitions. [2022-07-21 06:07:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:04,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:04,891 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] [2022-07-21 06:07:04,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-21 06:07:04,891 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:04,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1121536989, now seen corresponding path program 1 times [2022-07-21 06:07:04,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:04,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841904197] [2022-07-21 06:07:04,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:04,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:04,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:04,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841904197] [2022-07-21 06:07:04,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841904197] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:04,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:04,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:04,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546899678] [2022-07-21 06:07:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:04,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:04,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:04,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:04,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:04,969 INFO L87 Difference]: Start difference. First operand 938 states and 1220 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) [2022-07-21 06:07:06,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:06,606 INFO L93 Difference]: Finished difference Result 1812 states and 2434 transitions. [2022-07-21 06:07:06,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:06,607 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 [2022-07-21 06:07:06,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:06,609 INFO L225 Difference]: With dead ends: 1812 [2022-07-21 06:07:06,609 INFO L226 Difference]: Without dead ends: 1662 [2022-07-21 06:07:06,610 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 [2022-07-21 06:07:06,610 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 3064 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:06,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 2581 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-21 06:07:06,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-21 06:07:06,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3307860262008733) internal successors, (1219), 937 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:06,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1219 transitions. [2022-07-21 06:07:06,903 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1219 transitions. Word has length 98 [2022-07-21 06:07:06,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:06,903 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1219 transitions. [2022-07-21 06:07:06,903 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) [2022-07-21 06:07:06,904 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1219 transitions. [2022-07-21 06:07:06,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:06,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:06,919 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] [2022-07-21 06:07:06,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-21 06:07:06,920 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:06,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:06,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1773163569, now seen corresponding path program 1 times [2022-07-21 06:07:06,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:06,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815310765] [2022-07-21 06:07:06,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:06,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:07,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:07,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815310765] [2022-07-21 06:07:07,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815310765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:07,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:07,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:07,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833912969] [2022-07-21 06:07:07,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:07,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:07,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:07,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:07,007 INFO L87 Difference]: Start difference. First operand 938 states and 1219 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) [2022-07-21 06:07:08,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:08,677 INFO L93 Difference]: Finished difference Result 1810 states and 2430 transitions. [2022-07-21 06:07:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:08,677 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 [2022-07-21 06:07:08,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:08,679 INFO L225 Difference]: With dead ends: 1810 [2022-07-21 06:07:08,679 INFO L226 Difference]: Without dead ends: 1662 [2022-07-21 06:07:08,679 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 [2022-07-21 06:07:08,680 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2977 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:08,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 2618 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:08,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-21 06:07:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-21 06:07:08,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3296943231441047) internal successors, (1218), 937 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:08,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1218 transitions. [2022-07-21 06:07:08,961 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1218 transitions. Word has length 98 [2022-07-21 06:07:08,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:08,961 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1218 transitions. [2022-07-21 06:07:08,961 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) [2022-07-21 06:07:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1218 transitions. [2022-07-21 06:07:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:08,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:08,962 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] [2022-07-21 06:07:08,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-21 06:07:08,963 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:08,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1664858732, now seen corresponding path program 1 times [2022-07-21 06:07:08,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:08,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143008015] [2022-07-21 06:07:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:08,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:09,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:09,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:09,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143008015] [2022-07-21 06:07:09,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143008015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:09,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:09,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:09,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838575496] [2022-07-21 06:07:09,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:09,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:09,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:09,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:09,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:09,030 INFO L87 Difference]: Start difference. First operand 938 states and 1218 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) [2022-07-21 06:07:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:10,699 INFO L93 Difference]: Finished difference Result 1812 states and 2431 transitions. [2022-07-21 06:07:10,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:10,699 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 [2022-07-21 06:07:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:10,701 INFO L225 Difference]: With dead ends: 1812 [2022-07-21 06:07:10,702 INFO L226 Difference]: Without dead ends: 1662 [2022-07-21 06:07:10,702 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 [2022-07-21 06:07:10,702 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 2105 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:10,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2590 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-21 06:07:10,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-21 06:07:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3286026200873362) internal successors, (1217), 937 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:10,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1217 transitions. [2022-07-21 06:07:10,985 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1217 transitions. Word has length 98 [2022-07-21 06:07:10,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:10,986 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1217 transitions. [2022-07-21 06:07:10,986 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) [2022-07-21 06:07:10,986 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1217 transitions. [2022-07-21 06:07:10,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:10,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:10,987 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] [2022-07-21 06:07:10,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-21 06:07:10,987 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:10,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:10,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1981414488, now seen corresponding path program 1 times [2022-07-21 06:07:10,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:10,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72374995] [2022-07-21 06:07:10,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:10,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:11,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:11,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72374995] [2022-07-21 06:07:11,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72374995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:11,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:11,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:11,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433401866] [2022-07-21 06:07:11,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:11,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:11,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:11,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:11,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:11,074 INFO L87 Difference]: Start difference. First operand 938 states and 1217 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) [2022-07-21 06:07:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:12,716 INFO L93 Difference]: Finished difference Result 1812 states and 2429 transitions. [2022-07-21 06:07:12,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:12,717 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 [2022-07-21 06:07:12,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:12,719 INFO L225 Difference]: With dead ends: 1812 [2022-07-21 06:07:12,719 INFO L226 Difference]: Without dead ends: 1662 [2022-07-21 06:07:12,720 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 [2022-07-21 06:07:12,720 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 3162 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:12,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 2420 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:07:12,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-21 06:07:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-21 06:07:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3275109170305677) internal successors, (1216), 937 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1216 transitions. [2022-07-21 06:07:13,020 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1216 transitions. Word has length 98 [2022-07-21 06:07:13,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:13,021 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1216 transitions. [2022-07-21 06:07:13,021 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) [2022-07-21 06:07:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1216 transitions. [2022-07-21 06:07:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:13,022 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:13,022 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] [2022-07-21 06:07:13,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-21 06:07:13,022 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:13,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash -638543956, now seen corresponding path program 1 times [2022-07-21 06:07:13,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:13,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134779318] [2022-07-21 06:07:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:13,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:13,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:13,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134779318] [2022-07-21 06:07:13,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134779318] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:13,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:13,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:07:13,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356712248] [2022-07-21 06:07:13,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:13,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:13,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:13,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:13,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:13,150 INFO L87 Difference]: Start difference. First operand 938 states and 1216 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) [2022-07-21 06:07:16,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:16,680 INFO L93 Difference]: Finished difference Result 2766 states and 3827 transitions. [2022-07-21 06:07:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:07:16,681 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 [2022-07-21 06:07:16,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:16,684 INFO L225 Difference]: With dead ends: 2766 [2022-07-21 06:07:16,684 INFO L226 Difference]: Without dead ends: 2606 [2022-07-21 06:07:16,684 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 [2022-07-21 06:07:16,685 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 5889 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5889 SdHoareTripleChecker+Valid, 4401 SdHoareTripleChecker+Invalid, 4031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:16,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5889 Valid, 4401 Invalid, 4031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 06:07:16,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-07-21 06:07:16,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 942. [2022-07-21 06:07:16,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.326086956521739) internal successors, (1220), 941 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:16,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1220 transitions. [2022-07-21 06:07:16,982 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1220 transitions. Word has length 98 [2022-07-21 06:07:16,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:16,982 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1220 transitions. [2022-07-21 06:07:16,982 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) [2022-07-21 06:07:16,982 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1220 transitions. [2022-07-21 06:07:16,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:16,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:16,983 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] [2022-07-21 06:07:16,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-21 06:07:16,984 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:16,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:16,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1793097480, now seen corresponding path program 1 times [2022-07-21 06:07:16,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:16,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165852777] [2022-07-21 06:07:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:16,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:17,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:17,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:17,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165852777] [2022-07-21 06:07:17,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165852777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:17,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:17,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:17,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412329625] [2022-07-21 06:07:17,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:17,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:17,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:17,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:17,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:17,058 INFO L87 Difference]: Start difference. First operand 942 states and 1220 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) [2022-07-21 06:07:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:18,739 INFO L93 Difference]: Finished difference Result 1816 states and 2432 transitions. [2022-07-21 06:07:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:18,740 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 [2022-07-21 06:07:18,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:18,742 INFO L225 Difference]: With dead ends: 1816 [2022-07-21 06:07:18,742 INFO L226 Difference]: Without dead ends: 1666 [2022-07-21 06:07:18,742 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 [2022-07-21 06:07:18,743 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 2474 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:18,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2474 Valid, 2590 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:07:18,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-21 06:07:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 942. [2022-07-21 06:07:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.325) internal successors, (1219), 941 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1219 transitions. [2022-07-21 06:07:19,059 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1219 transitions. Word has length 98 [2022-07-21 06:07:19,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:19,059 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1219 transitions. [2022-07-21 06:07:19,059 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) [2022-07-21 06:07:19,060 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1219 transitions. [2022-07-21 06:07:19,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:19,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:19,061 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] [2022-07-21 06:07:19,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-21 06:07:19,061 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:19,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:19,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1342903942, now seen corresponding path program 1 times [2022-07-21 06:07:19,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:19,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979155721] [2022-07-21 06:07:19,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:19,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:19,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:19,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979155721] [2022-07-21 06:07:19,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979155721] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:19,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:19,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571060638] [2022-07-21 06:07:19,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:19,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:19,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:19,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:19,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:19,129 INFO L87 Difference]: Start difference. First operand 942 states and 1219 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) [2022-07-21 06:07:20,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:20,748 INFO L93 Difference]: Finished difference Result 1814 states and 2428 transitions. [2022-07-21 06:07:20,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:20,749 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 [2022-07-21 06:07:20,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:20,750 INFO L225 Difference]: With dead ends: 1814 [2022-07-21 06:07:20,751 INFO L226 Difference]: Without dead ends: 1666 [2022-07-21 06:07:20,751 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 [2022-07-21 06:07:20,751 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 2939 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2939 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:20,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2939 Valid, 2666 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:07:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-21 06:07:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 942. [2022-07-21 06:07:21,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.3239130434782609) internal successors, (1218), 941 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1218 transitions. [2022-07-21 06:07:21,051 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1218 transitions. Word has length 98 [2022-07-21 06:07:21,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:21,052 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1218 transitions. [2022-07-21 06:07:21,052 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) [2022-07-21 06:07:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1218 transitions. [2022-07-21 06:07:21,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:07:21,053 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:21,053 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] [2022-07-21 06:07:21,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-21 06:07:21,053 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:21,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:21,054 INFO L85 PathProgramCache]: Analyzing trace with hash 311553357, now seen corresponding path program 1 times [2022-07-21 06:07:21,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:21,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216412640] [2022-07-21 06:07:21,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:21,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:21,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:21,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216412640] [2022-07-21 06:07:21,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216412640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:21,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:21,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:21,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843070166] [2022-07-21 06:07:21,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:21,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:21,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:21,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:21,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:21,116 INFO L87 Difference]: Start difference. First operand 942 states and 1218 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) [2022-07-21 06:07:22,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:22,758 INFO L93 Difference]: Finished difference Result 1814 states and 2427 transitions. [2022-07-21 06:07:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:22,758 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 [2022-07-21 06:07:22,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:22,760 INFO L225 Difference]: With dead ends: 1814 [2022-07-21 06:07:22,760 INFO L226 Difference]: Without dead ends: 1666 [2022-07-21 06:07:22,761 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 [2022-07-21 06:07:22,761 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 3044 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3044 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:22,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3044 Valid, 2581 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:07:22,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-21 06:07:23,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 942. [2022-07-21 06:07:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.3228260869565218) internal successors, (1217), 941 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:23,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1217 transitions. [2022-07-21 06:07:23,077 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1217 transitions. Word has length 98 [2022-07-21 06:07:23,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:23,077 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1217 transitions. [2022-07-21 06:07:23,077 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) [2022-07-21 06:07:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1217 transitions. [2022-07-21 06:07:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:23,078 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:23,078 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] [2022-07-21 06:07:23,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-21 06:07:23,079 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:23,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1243175494, now seen corresponding path program 1 times [2022-07-21 06:07:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:23,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399801273] [2022-07-21 06:07:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:23,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:23,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:23,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:23,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399801273] [2022-07-21 06:07:23,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399801273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:23,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:23,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:23,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366164826] [2022-07-21 06:07:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:23,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:23,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:23,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:23,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:23,150 INFO L87 Difference]: Start difference. First operand 942 states and 1217 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) [2022-07-21 06:07:24,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:24,863 INFO L93 Difference]: Finished difference Result 1862 states and 2505 transitions. [2022-07-21 06:07:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:24,863 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 [2022-07-21 06:07:24,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:24,865 INFO L225 Difference]: With dead ends: 1862 [2022-07-21 06:07:24,865 INFO L226 Difference]: Without dead ends: 1690 [2022-07-21 06:07:24,866 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 [2022-07-21 06:07:24,866 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 3142 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:24,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 2876 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:24,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-07-21 06:07:25,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 934. [2022-07-21 06:07:25,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3234649122807018) internal successors, (1207), 933 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1207 transitions. [2022-07-21 06:07:25,167 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1207 transitions. Word has length 99 [2022-07-21 06:07:25,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:25,167 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1207 transitions. [2022-07-21 06:07:25,167 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) [2022-07-21 06:07:25,167 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1207 transitions. [2022-07-21 06:07:25,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:25,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:25,168 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] [2022-07-21 06:07:25,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-21 06:07:25,169 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)] === [2022-07-21 06:07:25,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash 358996279, now seen corresponding path program 1 times [2022-07-21 06:07:25,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:25,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411595082] [2022-07-21 06:07:25,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:25,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:25,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:25,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411595082] [2022-07-21 06:07:25,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411595082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:25,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:25,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:25,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192142139] [2022-07-21 06:07:25,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:25,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:25,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:25,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:25,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:25,241 INFO L87 Difference]: Start difference. First operand 934 states and 1207 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) [2022-07-21 06:07:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:27,009 INFO L93 Difference]: Finished difference Result 1707 states and 2271 transitions. [2022-07-21 06:07:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:27,010 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 [2022-07-21 06:07:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:27,012 INFO L225 Difference]: With dead ends: 1707 [2022-07-21 06:07:27,012 INFO L226 Difference]: Without dead ends: 1690 [2022-07-21 06:07:27,012 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 [2022-07-21 06:07:27,012 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 2900 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2900 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:27,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2900 Valid, 2979 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:27,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-07-21 06:07:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 926. [2022-07-21 06:07:27,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3241150442477876) internal successors, (1197), 925 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1197 transitions. [2022-07-21 06:07:27,319 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1197 transitions. Word has length 99 [2022-07-21 06:07:27,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:27,319 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1197 transitions. [2022-07-21 06:07:27,319 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) [2022-07-21 06:07:27,319 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1197 transitions. [2022-07-21 06:07:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:27,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:27,321 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] [2022-07-21 06:07:27,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-21 06:07:27,321 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash -137499081, now seen corresponding path program 1 times [2022-07-21 06:07:27,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:27,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222316525] [2022-07-21 06:07:27,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:27,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:27,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:27,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222316525] [2022-07-21 06:07:27,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222316525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:27,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:27,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:27,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534859802] [2022-07-21 06:07:27,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:27,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:27,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:27,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:27,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:27,440 INFO L87 Difference]: Start difference. First operand 926 states and 1197 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) [2022-07-21 06:07:29,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:29,205 INFO L93 Difference]: Finished difference Result 1803 states and 2410 transitions. [2022-07-21 06:07:29,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:29,206 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 [2022-07-21 06:07:29,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:29,207 INFO L225 Difference]: With dead ends: 1803 [2022-07-21 06:07:29,208 INFO L226 Difference]: Without dead ends: 1650 [2022-07-21 06:07:29,208 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 [2022-07-21 06:07:29,208 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 2047 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2047 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:29,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2047 Valid, 2698 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-07-21 06:07:29,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 922. [2022-07-21 06:07:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3244444444444445) internal successors, (1192), 921 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1192 transitions. [2022-07-21 06:07:29,511 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1192 transitions. Word has length 99 [2022-07-21 06:07:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:29,511 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1192 transitions. [2022-07-21 06:07:29,511 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) [2022-07-21 06:07:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1192 transitions. [2022-07-21 06:07:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:29,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:29,513 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] [2022-07-21 06:07:29,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-21 06:07:29,513 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:29,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1036997114, now seen corresponding path program 1 times [2022-07-21 06:07:29,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:29,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318131175] [2022-07-21 06:07:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:29,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:29,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:29,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318131175] [2022-07-21 06:07:29,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318131175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:29,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:29,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:29,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040078113] [2022-07-21 06:07:29,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:29,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:29,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:29,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:29,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:29,581 INFO L87 Difference]: Start difference. First operand 922 states and 1192 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) [2022-07-21 06:07:31,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:31,364 INFO L93 Difference]: Finished difference Result 1851 states and 2485 transitions. [2022-07-21 06:07:31,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:31,364 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 [2022-07-21 06:07:31,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:31,366 INFO L225 Difference]: With dead ends: 1851 [2022-07-21 06:07:31,366 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:07:31,367 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 [2022-07-21 06:07:31,367 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 1961 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:31,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 3027 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:31,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:07:31,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-21 06:07:31,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3247767857142858) internal successors, (1187), 917 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:31,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1187 transitions. [2022-07-21 06:07:31,677 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1187 transitions. Word has length 99 [2022-07-21 06:07:31,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:31,678 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1187 transitions. [2022-07-21 06:07:31,678 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) [2022-07-21 06:07:31,678 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1187 transitions. [2022-07-21 06:07:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:31,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:31,679 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] [2022-07-21 06:07:31,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-21 06:07:31,679 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:31,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:31,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1643745826, now seen corresponding path program 1 times [2022-07-21 06:07:31,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:31,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206496809] [2022-07-21 06:07:31,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:31,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:31,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:31,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:31,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206496809] [2022-07-21 06:07:31,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206496809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:31,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:31,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:31,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300204494] [2022-07-21 06:07:31,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:31,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:31,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:31,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:31,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:31,749 INFO L87 Difference]: Start difference. First operand 918 states and 1187 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) [2022-07-21 06:07:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:33,538 INFO L93 Difference]: Finished difference Result 1846 states and 2479 transitions. [2022-07-21 06:07:33,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:33,539 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 [2022-07-21 06:07:33,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:33,541 INFO L225 Difference]: With dead ends: 1846 [2022-07-21 06:07:33,541 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:07:33,541 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 [2022-07-21 06:07:33,542 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 2823 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:33,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 3077 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:33,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:07:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 914. [2022-07-21 06:07:33,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 892 states have (on average 1.3251121076233183) internal successors, (1182), 913 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:33,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1182 transitions. [2022-07-21 06:07:33,861 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1182 transitions. Word has length 99 [2022-07-21 06:07:33,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:33,863 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1182 transitions. [2022-07-21 06:07:33,879 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) [2022-07-21 06:07:33,879 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1182 transitions. [2022-07-21 06:07:33,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:33,880 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:33,880 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] [2022-07-21 06:07:33,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-21 06:07:33,881 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:33,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:33,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1646967475, now seen corresponding path program 1 times [2022-07-21 06:07:33,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:33,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529572363] [2022-07-21 06:07:33,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:33,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:33,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:33,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529572363] [2022-07-21 06:07:33,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529572363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:33,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:33,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:33,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013258067] [2022-07-21 06:07:33,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:33,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:33,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:33,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:33,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:33,956 INFO L87 Difference]: Start difference. First operand 914 states and 1182 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) [2022-07-21 06:07:35,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:35,721 INFO L93 Difference]: Finished difference Result 1846 states and 2477 transitions. [2022-07-21 06:07:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:35,721 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 [2022-07-21 06:07:35,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:35,723 INFO L225 Difference]: With dead ends: 1846 [2022-07-21 06:07:35,723 INFO L226 Difference]: Without dead ends: 1686 [2022-07-21 06:07:35,724 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 [2022-07-21 06:07:35,724 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 1921 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:35,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 3113 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:07:35,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-21 06:07:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-07-21 06:07:36,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3254504504504505) internal successors, (1177), 909 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:36,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1177 transitions. [2022-07-21 06:07:36,037 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1177 transitions. Word has length 99 [2022-07-21 06:07:36,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:36,038 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1177 transitions. [2022-07-21 06:07:36,038 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) [2022-07-21 06:07:36,038 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1177 transitions. [2022-07-21 06:07:36,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:36,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:36,039 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] [2022-07-21 06:07:36,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-21 06:07:36,039 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:36,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:36,040 INFO L85 PathProgramCache]: Analyzing trace with hash -23064076, now seen corresponding path program 1 times [2022-07-21 06:07:36,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:36,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432523580] [2022-07-21 06:07:36,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:36,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:36,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:36,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432523580] [2022-07-21 06:07:36,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432523580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:36,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:36,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:36,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733998310] [2022-07-21 06:07:36,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:36,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:36,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:36,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:36,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:36,106 INFO L87 Difference]: Start difference. First operand 910 states and 1177 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) [2022-07-21 06:07:37,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:37,894 INFO L93 Difference]: Finished difference Result 1787 states and 2390 transitions. [2022-07-21 06:07:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:37,895 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 [2022-07-21 06:07:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:37,897 INFO L225 Difference]: With dead ends: 1787 [2022-07-21 06:07:37,897 INFO L226 Difference]: Without dead ends: 1638 [2022-07-21 06:07:37,901 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 [2022-07-21 06:07:37,901 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 2769 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:37,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2769 Valid, 2839 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:37,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-21 06:07:38,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-07-21 06:07:38,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3243243243243243) internal successors, (1176), 909 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1176 transitions. [2022-07-21 06:07:38,242 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1176 transitions. Word has length 99 [2022-07-21 06:07:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:38,243 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1176 transitions. [2022-07-21 06:07:38,243 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) [2022-07-21 06:07:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1176 transitions. [2022-07-21 06:07:38,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:38,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:38,244 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] [2022-07-21 06:07:38,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-21 06:07:38,244 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:38,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:38,245 INFO L85 PathProgramCache]: Analyzing trace with hash -362080419, now seen corresponding path program 1 times [2022-07-21 06:07:38,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:38,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460602504] [2022-07-21 06:07:38,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:38,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:38,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:38,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460602504] [2022-07-21 06:07:38,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460602504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:38,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:38,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-21 06:07:38,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580476185] [2022-07-21 06:07:38,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:38,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 06:07:38,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:38,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 06:07:38,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-21 06:07:38,696 INFO L87 Difference]: Start difference. First operand 910 states and 1176 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 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) [2022-07-21 06:07:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:41,621 INFO L93 Difference]: Finished difference Result 2540 states and 3429 transitions. [2022-07-21 06:07:41,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 06:07:41,622 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 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 [2022-07-21 06:07:41,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:41,624 INFO L225 Difference]: With dead ends: 2540 [2022-07-21 06:07:41,624 INFO L226 Difference]: Without dead ends: 2288 [2022-07-21 06:07:41,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-07-21 06:07:41,625 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 4873 mSDsluCounter, 11654 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 13218 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:41,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4873 Valid, 13218 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:07:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2022-07-21 06:07:41,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 864. [2022-07-21 06:07:41,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 843 states have (on average 1.3202846975088969) internal successors, (1113), 863 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1113 transitions. [2022-07-21 06:07:41,955 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1113 transitions. Word has length 100 [2022-07-21 06:07:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:41,956 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1113 transitions. [2022-07-21 06:07:41,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 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) [2022-07-21 06:07:41,957 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1113 transitions. [2022-07-21 06:07:41,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:41,958 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:41,958 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] [2022-07-21 06:07:41,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-21 06:07:41,958 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:41,959 INFO L85 PathProgramCache]: Analyzing trace with hash 171611640, now seen corresponding path program 1 times [2022-07-21 06:07:41,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:41,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967873950] [2022-07-21 06:07:41,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:41,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:42,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:42,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:42,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967873950] [2022-07-21 06:07:42,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967873950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:42,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:42,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:07:42,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45227331] [2022-07-21 06:07:42,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:42,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:42,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:42,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:42,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:42,248 INFO L87 Difference]: Start difference. First operand 864 states and 1113 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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) [2022-07-21 06:07:44,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:44,092 INFO L93 Difference]: Finished difference Result 1420 states and 1855 transitions. [2022-07-21 06:07:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 06:07:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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 [2022-07-21 06:07:44,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:44,093 INFO L225 Difference]: With dead ends: 1420 [2022-07-21 06:07:44,093 INFO L226 Difference]: Without dead ends: 1266 [2022-07-21 06:07:44,094 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 [2022-07-21 06:07:44,094 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 3272 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:44,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 4275 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:44,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-07-21 06:07:44,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 854. [2022-07-21 06:07:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 834 states have (on average 1.316546762589928) internal successors, (1098), 853 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1098 transitions. [2022-07-21 06:07:44,427 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1098 transitions. Word has length 100 [2022-07-21 06:07:44,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:44,427 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1098 transitions. [2022-07-21 06:07:44,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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) [2022-07-21 06:07:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1098 transitions. [2022-07-21 06:07:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:44,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:44,429 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] [2022-07-21 06:07:44,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-21 06:07:44,430 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:44,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:44,430 INFO L85 PathProgramCache]: Analyzing trace with hash -127286155, now seen corresponding path program 1 times [2022-07-21 06:07:44,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:44,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360173454] [2022-07-21 06:07:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:44,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:44,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:44,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360173454] [2022-07-21 06:07:44,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360173454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:44,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:44,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:07:44,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218660724] [2022-07-21 06:07:44,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:44,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:07:44,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:44,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:07:44,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:07:44,678 INFO L87 Difference]: Start difference. First operand 854 states and 1098 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 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) [2022-07-21 06:07:48,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:48,055 INFO L93 Difference]: Finished difference Result 3037 states and 4152 transitions. [2022-07-21 06:07:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 06:07:48,056 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 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 [2022-07-21 06:07:48,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:48,059 INFO L225 Difference]: With dead ends: 3037 [2022-07-21 06:07:48,059 INFO L226 Difference]: Without dead ends: 2835 [2022-07-21 06:07:48,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:07:48,060 INFO L413 NwaCegarLoop]: 1783 mSDtfsCounter, 4170 mSDsluCounter, 9253 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4170 SdHoareTripleChecker+Valid, 11036 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:48,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 11036 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:07:48,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2022-07-21 06:07:48,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 800. [2022-07-21 06:07:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 783 states have (on average 1.3116219667943805) internal successors, (1027), 799 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:48,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1027 transitions. [2022-07-21 06:07:48,429 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1027 transitions. Word has length 100 [2022-07-21 06:07:48,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:48,429 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1027 transitions. [2022-07-21 06:07:48,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 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) [2022-07-21 06:07:48,429 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1027 transitions. [2022-07-21 06:07:48,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:48,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:48,430 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, 1, 1, 1, 1, 1] [2022-07-21 06:07:48,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-21 06:07:48,431 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:48,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:48,432 INFO L85 PathProgramCache]: Analyzing trace with hash -798771389, now seen corresponding path program 1 times [2022-07-21 06:07:48,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:48,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911023980] [2022-07-21 06:07:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:48,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:48,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:48,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911023980] [2022-07-21 06:07:48,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911023980] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:48,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:48,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:07:48,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870548845] [2022-07-21 06:07:48,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:48,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:48,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:48,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:48,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:48,686 INFO L87 Difference]: Start difference. First operand 800 states and 1027 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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) [2022-07-21 06:07:49,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:49,987 INFO L93 Difference]: Finished difference Result 1465 states and 1976 transitions. [2022-07-21 06:07:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 06:07:49,988 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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 [2022-07-21 06:07:49,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:49,989 INFO L225 Difference]: With dead ends: 1465 [2022-07-21 06:07:49,989 INFO L226 Difference]: Without dead ends: 1117 [2022-07-21 06:07:49,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:07:49,990 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 3329 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3329 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:49,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3329 Valid, 4697 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:07:49,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2022-07-21 06:07:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 600. [2022-07-21 06:07:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 588 states have (on average 1.3112244897959184) internal successors, (771), 599 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 771 transitions. [2022-07-21 06:07:50,307 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 771 transitions. Word has length 100 [2022-07-21 06:07:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:50,307 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 771 transitions. [2022-07-21 06:07:50,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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) [2022-07-21 06:07:50,307 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 771 transitions. [2022-07-21 06:07:50,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:50,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:50,308 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] [2022-07-21 06:07:50,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-21 06:07:50,309 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:50,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:50,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1967013514, now seen corresponding path program 1 times [2022-07-21 06:07:50,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:50,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075912227] [2022-07-21 06:07:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:50,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:50,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:50,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:50,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075912227] [2022-07-21 06:07:50,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075912227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:50,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:50,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:07:50,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110633105] [2022-07-21 06:07:50,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:50,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:50,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:50,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:50,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:50,494 INFO L87 Difference]: Start difference. First operand 600 states and 771 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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) [2022-07-21 06:07:51,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:51,774 INFO L93 Difference]: Finished difference Result 1058 states and 1397 transitions. [2022-07-21 06:07:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:07:51,775 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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 [2022-07-21 06:07:51,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:51,776 INFO L225 Difference]: With dead ends: 1058 [2022-07-21 06:07:51,776 INFO L226 Difference]: Without dead ends: 906 [2022-07-21 06:07:51,777 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 [2022-07-21 06:07:51,777 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 3139 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:51,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 2217 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:07:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-07-21 06:07:52,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 596. [2022-07-21 06:07:52,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 585 states have (on average 1.3094017094017094) internal successors, (766), 595 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:52,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 766 transitions. [2022-07-21 06:07:52,100 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 766 transitions. Word has length 100 [2022-07-21 06:07:52,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:52,100 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 766 transitions. [2022-07-21 06:07:52,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 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) [2022-07-21 06:07:52,100 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 766 transitions. [2022-07-21 06:07:52,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:52,101 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:52,101 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] [2022-07-21 06:07:52,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-21 06:07:52,101 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:52,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:52,102 INFO L85 PathProgramCache]: Analyzing trace with hash 186496366, now seen corresponding path program 1 times [2022-07-21 06:07:52,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:52,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69613364] [2022-07-21 06:07:52,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:52,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:52,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:52,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:52,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69613364] [2022-07-21 06:07:52,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69613364] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:52,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:52,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-21 06:07:52,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491911979] [2022-07-21 06:07:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:52,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 06:07:52,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:52,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 06:07:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-21 06:07:52,375 INFO L87 Difference]: Start difference. First operand 596 states and 766 transitions. Second operand has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 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) [2022-07-21 06:07:53,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:53,929 INFO L93 Difference]: Finished difference Result 1195 states and 1608 transitions. [2022-07-21 06:07:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 06:07:53,930 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 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 [2022-07-21 06:07:53,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:53,931 INFO L225 Difference]: With dead ends: 1195 [2022-07-21 06:07:53,931 INFO L226 Difference]: Without dead ends: 834 [2022-07-21 06:07:53,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:07:53,932 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 2166 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:53,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 4727 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:07:53,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-07-21 06:07:54,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 499. [2022-07-21 06:07:54,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 489 states have (on average 1.3047034764826175) internal successors, (638), 498 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:54,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 638 transitions. [2022-07-21 06:07:54,209 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 638 transitions. Word has length 100 [2022-07-21 06:07:54,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:54,209 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 638 transitions. [2022-07-21 06:07:54,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 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) [2022-07-21 06:07:54,209 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 638 transitions. [2022-07-21 06:07:54,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:07:54,210 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:54,210 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] [2022-07-21 06:07:54,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-21 06:07:54,210 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:54,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:54,211 INFO L85 PathProgramCache]: Analyzing trace with hash -543164459, now seen corresponding path program 1 times [2022-07-21 06:07:54,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:54,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443985784] [2022-07-21 06:07:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:54,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:54,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:54,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443985784] [2022-07-21 06:07:54,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443985784] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:54,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:54,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:07:54,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107453744] [2022-07-21 06:07:54,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:54,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:54,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:54,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:54,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:54,412 INFO L87 Difference]: Start difference. First operand 499 states and 638 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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) [2022-07-21 06:07:55,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:55,610 INFO L93 Difference]: Finished difference Result 912 states and 1210 transitions. [2022-07-21 06:07:55,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:07:55,610 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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 [2022-07-21 06:07:55,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:55,611 INFO L225 Difference]: With dead ends: 912 [2022-07-21 06:07:55,611 INFO L226 Difference]: Without dead ends: 758 [2022-07-21 06:07:55,612 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 [2022-07-21 06:07:55,612 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 2062 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:55,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 1986 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:07:55,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-07-21 06:07:55,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 487. [2022-07-21 06:07:55,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 478 states have (on average 1.299163179916318) internal successors, (621), 486 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:55,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 621 transitions. [2022-07-21 06:07:55,903 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 621 transitions. Word has length 101 [2022-07-21 06:07:55,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:55,903 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 621 transitions. [2022-07-21 06:07:55,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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) [2022-07-21 06:07:55,903 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 621 transitions. [2022-07-21 06:07:55,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:07:55,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:55,904 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, 1] [2022-07-21 06:07:55,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-21 06:07:55,904 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:55,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:55,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1971285689, now seen corresponding path program 1 times [2022-07-21 06:07:55,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:55,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543926498] [2022-07-21 06:07:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:55,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:56,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543926498] [2022-07-21 06:07:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543926498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:56,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:56,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:07:56,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159720785] [2022-07-21 06:07:56,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:56,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:56,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:56,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:56,076 INFO L87 Difference]: Start difference. First operand 487 states and 621 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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) [2022-07-21 06:07:56,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:57,000 INFO L93 Difference]: Finished difference Result 910 states and 1212 transitions. [2022-07-21 06:07:57,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 06:07:57,000 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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 [2022-07-21 06:07:57,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:57,001 INFO L225 Difference]: With dead ends: 910 [2022-07-21 06:07:57,001 INFO L226 Difference]: Without dead ends: 742 [2022-07-21 06:07:57,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2022-07-21 06:07:57,002 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 1320 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:57,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 2546 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:07:57,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-07-21 06:07:57,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 457. [2022-07-21 06:07:57,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 449 states have (on average 1.2984409799554566) internal successors, (583), 456 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:57,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 583 transitions. [2022-07-21 06:07:57,284 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 583 transitions. Word has length 101 [2022-07-21 06:07:57,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:57,285 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 583 transitions. [2022-07-21 06:07:57,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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) [2022-07-21 06:07:57,285 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 583 transitions. [2022-07-21 06:07:57,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:07:57,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:57,286 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] [2022-07-21 06:07:57,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-07-21 06:07:57,286 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:57,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1740504427, now seen corresponding path program 1 times [2022-07-21 06:07:57,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:57,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154743054] [2022-07-21 06:07:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:57,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:57,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:57,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154743054] [2022-07-21 06:07:57,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154743054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:57,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:57,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373646582] [2022-07-21 06:07:57,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:57,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:57,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:57,373 INFO L87 Difference]: Start difference. First operand 457 states and 583 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) [2022-07-21 06:07:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:58,305 INFO L93 Difference]: Finished difference Result 711 states and 921 transitions. [2022-07-21 06:07:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 06:07:58,306 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 [2022-07-21 06:07:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:58,307 INFO L225 Difference]: With dead ends: 711 [2022-07-21 06:07:58,307 INFO L226 Difference]: Without dead ends: 704 [2022-07-21 06:07:58,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-07-21 06:07:58,307 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1579 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:58,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 1175 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:07:58,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-07-21 06:07:58,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 457. [2022-07-21 06:07:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 449 states have (on average 1.2962138084632517) internal successors, (582), 456 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 582 transitions. [2022-07-21 06:07:58,604 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 582 transitions. Word has length 101 [2022-07-21 06:07:58,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:58,604 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 582 transitions. [2022-07-21 06:07:58,604 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) [2022-07-21 06:07:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 582 transitions. [2022-07-21 06:07:58,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:07:58,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:58,605 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, 1, 1] [2022-07-21 06:07:58,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-07-21 06:07:58,605 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:58,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:58,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1904507925, now seen corresponding path program 1 times [2022-07-21 06:07:58,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:58,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719012108] [2022-07-21 06:07:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:58,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:58,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:58,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719012108] [2022-07-21 06:07:58,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719012108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:58,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:58,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:07:58,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264035236] [2022-07-21 06:07:58,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:58,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:58,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:58,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:58,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:58,738 INFO L87 Difference]: Start difference. First operand 457 states and 582 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) [2022-07-21 06:08:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:02,342 INFO L93 Difference]: Finished difference Result 2134 states and 2995 transitions. [2022-07-21 06:08:02,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:08:02,342 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 [2022-07-21 06:08:02,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:02,344 INFO L225 Difference]: With dead ends: 2134 [2022-07-21 06:08:02,344 INFO L226 Difference]: Without dead ends: 1956 [2022-07-21 06:08:02,345 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 [2022-07-21 06:08:02,345 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 4635 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:02,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 2094 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:08:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2022-07-21 06:08:02,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 465. [2022-07-21 06:08:02,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 457 states have (on average 1.2910284463894968) internal successors, (590), 464 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) [2022-07-21 06:08:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 590 transitions. [2022-07-21 06:08:02,644 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 590 transitions. Word has length 101 [2022-07-21 06:08:02,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:02,644 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 590 transitions. [2022-07-21 06:08:02,644 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) [2022-07-21 06:08:02,644 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 590 transitions. [2022-07-21 06:08:02,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:02,645 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:02,645 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] [2022-07-21 06:08:02,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-07-21 06:08:02,645 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:02,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:02,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1612960383, now seen corresponding path program 1 times [2022-07-21 06:08:02,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:02,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606265193] [2022-07-21 06:08:02,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:02,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:02,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:02,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606265193] [2022-07-21 06:08:02,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606265193] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:02,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:02,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:08:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547416151] [2022-07-21 06:08:02,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:02,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:02,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:02,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:02,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:02,869 INFO L87 Difference]: Start difference. First operand 465 states and 590 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2022-07-21 06:08:04,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:04,564 INFO L93 Difference]: Finished difference Result 1305 states and 1757 transitions. [2022-07-21 06:08:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 06:08:04,565 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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 [2022-07-21 06:08:04,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:04,566 INFO L225 Difference]: With dead ends: 1305 [2022-07-21 06:08:04,566 INFO L226 Difference]: Without dead ends: 1146 [2022-07-21 06:08:04,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-21 06:08:04,567 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 1979 mSDsluCounter, 3622 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:04,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 4133 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:08:04,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-07-21 06:08:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 454. [2022-07-21 06:08:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 447 states have (on average 1.2885906040268456) internal successors, (576), 453 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 576 transitions. [2022-07-21 06:08:04,881 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 576 transitions. Word has length 101 [2022-07-21 06:08:04,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 576 transitions. [2022-07-21 06:08:04,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2022-07-21 06:08:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 576 transitions. [2022-07-21 06:08:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:04,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:04,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:08:04,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-07-21 06:08:04,883 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:04,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:04,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2060658306, now seen corresponding path program 1 times [2022-07-21 06:08:04,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:04,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556776998] [2022-07-21 06:08:04,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:04,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:05,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:05,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556776998] [2022-07-21 06:08:05,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556776998] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:05,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:05,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:08:05,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341688441] [2022-07-21 06:08:05,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:05,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:05,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:05,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:05,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:05,092 INFO L87 Difference]: Start difference. First operand 454 states and 576 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2022-07-21 06:08:08,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:08,112 INFO L93 Difference]: Finished difference Result 2182 states and 3062 transitions. [2022-07-21 06:08:08,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 06:08:08,112 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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 [2022-07-21 06:08:08,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:08,114 INFO L225 Difference]: With dead ends: 2182 [2022-07-21 06:08:08,114 INFO L226 Difference]: Without dead ends: 2027 [2022-07-21 06:08:08,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-07-21 06:08:08,115 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 3087 mSDsluCounter, 4594 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3087 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:08,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3087 Valid, 5305 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:08:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2022-07-21 06:08:08,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 447. [2022-07-21 06:08:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 440 states have (on average 1.2863636363636364) internal successors, (566), 446 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:08,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 566 transitions. [2022-07-21 06:08:08,428 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 566 transitions. Word has length 101 [2022-07-21 06:08:08,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:08,428 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 566 transitions. [2022-07-21 06:08:08,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2022-07-21 06:08:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 566 transitions. [2022-07-21 06:08:08,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:08,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:08,429 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] [2022-07-21 06:08:08,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-07-21 06:08:08,429 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:08,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:08,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1449733854, now seen corresponding path program 1 times [2022-07-21 06:08:08,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:08,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794376294] [2022-07-21 06:08:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:08,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:08,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794376294] [2022-07-21 06:08:08,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794376294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:08,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:08,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:08:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884577200] [2022-07-21 06:08:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:08,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:08,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:08,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:08,627 INFO L87 Difference]: Start difference. First operand 447 states and 566 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2022-07-21 06:08:10,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:10,314 INFO L93 Difference]: Finished difference Result 1303 states and 1755 transitions. [2022-07-21 06:08:10,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 06:08:10,314 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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 [2022-07-21 06:08:10,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:10,332 INFO L225 Difference]: With dead ends: 1303 [2022-07-21 06:08:10,332 INFO L226 Difference]: Without dead ends: 1138 [2022-07-21 06:08:10,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-21 06:08:10,333 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 2288 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:10,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 3762 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:10,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-07-21 06:08:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 430. [2022-07-21 06:08:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 424 states have (on average 1.2853773584905661) internal successors, (545), 429 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 545 transitions. [2022-07-21 06:08:10,657 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 545 transitions. Word has length 101 [2022-07-21 06:08:10,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:10,657 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 545 transitions. [2022-07-21 06:08:10,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2022-07-21 06:08:10,657 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 545 transitions. [2022-07-21 06:08:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:10,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:10,662 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] [2022-07-21 06:08:10,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-07-21 06:08:10,663 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:10,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1370136807, now seen corresponding path program 1 times [2022-07-21 06:08:10,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:10,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400785621] [2022-07-21 06:08:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:10,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:10,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:10,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400785621] [2022-07-21 06:08:10,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400785621] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:10,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:10,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:08:10,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495808421] [2022-07-21 06:08:10,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:10,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:10,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:10,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:10,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:10,974 INFO L87 Difference]: Start difference. First operand 430 states and 545 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2022-07-21 06:08:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:14,187 INFO L93 Difference]: Finished difference Result 2138 states and 3007 transitions. [2022-07-21 06:08:14,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 06:08:14,188 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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 [2022-07-21 06:08:14,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:14,190 INFO L225 Difference]: With dead ends: 2138 [2022-07-21 06:08:14,190 INFO L226 Difference]: Without dead ends: 1983 [2022-07-21 06:08:14,191 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 [2022-07-21 06:08:14,191 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 2704 mSDsluCounter, 6102 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 6967 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:14,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 6967 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:08:14,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-07-21 06:08:14,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 423. [2022-07-21 06:08:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 417 states have (on average 1.2829736211031175) internal successors, (535), 422 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 535 transitions. [2022-07-21 06:08:14,513 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 535 transitions. Word has length 101 [2022-07-21 06:08:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:14,513 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 535 transitions. [2022-07-21 06:08:14,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2022-07-21 06:08:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 535 transitions. [2022-07-21 06:08:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:14,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:14,514 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] [2022-07-21 06:08:14,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-07-21 06:08:14,514 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:14,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:14,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1781714603, now seen corresponding path program 1 times [2022-07-21 06:08:14,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:14,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198110332] [2022-07-21 06:08:14,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:14,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:14,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:14,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:14,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198110332] [2022-07-21 06:08:14,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198110332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:14,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:14,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:08:14,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067825426] [2022-07-21 06:08:14,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:14,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 06:08:14,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:14,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 06:08:14,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:08:14,721 INFO L87 Difference]: Start difference. First operand 423 states and 535 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) 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) [2022-07-21 06:08:16,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:16,543 INFO L93 Difference]: Finished difference Result 1253 states and 1722 transitions. [2022-07-21 06:08:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 06:08:16,543 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) 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 [2022-07-21 06:08:16,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:16,544 INFO L225 Difference]: With dead ends: 1253 [2022-07-21 06:08:16,544 INFO L226 Difference]: Without dead ends: 1027 [2022-07-21 06:08:16,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2022-07-21 06:08:16,545 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 2371 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:16,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 2235 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:16,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2022-07-21 06:08:16,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 345. [2022-07-21 06:08:16,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 341 states have (on average 1.2873900293255132) internal successors, (439), 344 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:16,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 439 transitions. [2022-07-21 06:08:16,844 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 439 transitions. Word has length 101 [2022-07-21 06:08:16,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:16,844 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 439 transitions. [2022-07-21 06:08:16,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) 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) [2022-07-21 06:08:16,845 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 439 transitions. [2022-07-21 06:08:16,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:16,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:16,845 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] [2022-07-21 06:08:16,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-07-21 06:08:16,846 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:16,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:16,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1057282067, now seen corresponding path program 1 times [2022-07-21 06:08:16,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:16,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412158058] [2022-07-21 06:08:16,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:16,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:16,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:16,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:16,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412158058] [2022-07-21 06:08:16,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412158058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:16,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:16,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:08:16,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358310314] [2022-07-21 06:08:16,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:16,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:16,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:16,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:16,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:16,985 INFO L87 Difference]: Start difference. First operand 345 states and 439 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 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) [2022-07-21 06:08:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:18,882 INFO L93 Difference]: Finished difference Result 929 states and 1267 transitions. [2022-07-21 06:08:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 06:08:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 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 [2022-07-21 06:08:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:18,884 INFO L225 Difference]: With dead ends: 929 [2022-07-21 06:08:18,884 INFO L226 Difference]: Without dead ends: 922 [2022-07-21 06:08:18,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-07-21 06:08:18,885 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 3551 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:18,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3551 Valid, 817 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:08:18,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-07-21 06:08:19,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 349. [2022-07-21 06:08:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 345 states have (on average 1.2840579710144928) internal successors, (443), 348 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 443 transitions. [2022-07-21 06:08:19,185 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 443 transitions. Word has length 102 [2022-07-21 06:08:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:19,185 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 443 transitions. [2022-07-21 06:08:19,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 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) [2022-07-21 06:08:19,185 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 443 transitions. [2022-07-21 06:08:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:19,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:19,186 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] [2022-07-21 06:08:19,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-07-21 06:08:19,186 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:19,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:19,187 INFO L85 PathProgramCache]: Analyzing trace with hash 690209749, now seen corresponding path program 1 times [2022-07-21 06:08:19,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:19,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451780226] [2022-07-21 06:08:19,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:19,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:19,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451780226] [2022-07-21 06:08:19,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451780226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:19,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:19,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:19,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698925472] [2022-07-21 06:08:19,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:19,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:08:19,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:19,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:08:19,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:08:19,254 INFO L87 Difference]: Start difference. First operand 349 states and 443 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) [2022-07-21 06:08:20,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:20,147 INFO L93 Difference]: Finished difference Result 727 states and 979 transitions. [2022-07-21 06:08:20,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 06:08:20,147 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 [2022-07-21 06:08:20,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:20,148 INFO L225 Difference]: With dead ends: 727 [2022-07-21 06:08:20,148 INFO L226 Difference]: Without dead ends: 549 [2022-07-21 06:08:20,148 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 [2022-07-21 06:08:20,149 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 979 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:20,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 838 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:20,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-21 06:08:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 341. [2022-07-21 06:08:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 337 states have (on average 1.28486646884273) internal successors, (433), 340 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 433 transitions. [2022-07-21 06:08:20,442 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 433 transitions. Word has length 102 [2022-07-21 06:08:20,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:20,442 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 433 transitions. [2022-07-21 06:08:20,442 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) [2022-07-21 06:08:20,443 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 433 transitions. [2022-07-21 06:08:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 06:08:20,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:20,443 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] [2022-07-21 06:08:20,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-07-21 06:08:20,444 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:20,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:20,444 INFO L85 PathProgramCache]: Analyzing trace with hash 348199129, now seen corresponding path program 1 times [2022-07-21 06:08:20,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:20,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751466377] [2022-07-21 06:08:20,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:20,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:20,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:20,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:20,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751466377] [2022-07-21 06:08:20,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751466377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:20,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:20,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:20,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982673124] [2022-07-21 06:08:20,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:20,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:20,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:20,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:20,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:20,603 INFO L87 Difference]: Start difference. First operand 341 states and 433 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) 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) [2022-07-21 06:08:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:22,021 INFO L93 Difference]: Finished difference Result 566 states and 738 transitions. [2022-07-21 06:08:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 06:08:22,022 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) 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 [2022-07-21 06:08:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:22,022 INFO L225 Difference]: With dead ends: 566 [2022-07-21 06:08:22,022 INFO L226 Difference]: Without dead ends: 559 [2022-07-21 06:08:22,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2022-07-21 06:08:22,023 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 871 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:22,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1770 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:08:22,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-07-21 06:08:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 337. [2022-07-21 06:08:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 333 states have (on average 1.2852852852852852) internal successors, (428), 336 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 428 transitions. [2022-07-21 06:08:22,319 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 428 transitions. Word has length 103 [2022-07-21 06:08:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:22,319 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 428 transitions. [2022-07-21 06:08:22,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) 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) [2022-07-21 06:08:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 428 transitions. [2022-07-21 06:08:22,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 06:08:22,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:22,320 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:08:22,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-07-21 06:08:22,320 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:22,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:22,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1191441136, now seen corresponding path program 1 times [2022-07-21 06:08:22,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:22,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784112041] [2022-07-21 06:08:22,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:22,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:22,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:22,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784112041] [2022-07-21 06:08:22,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784112041] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:22,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:22,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:22,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103954812] [2022-07-21 06:08:22,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:22,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:22,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:22,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:22,535 INFO L87 Difference]: Start difference. First operand 337 states and 428 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) [2022-07-21 06:08:24,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:24,085 INFO L93 Difference]: Finished difference Result 849 states and 1162 transitions. [2022-07-21 06:08:24,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:24,085 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 [2022-07-21 06:08:24,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:24,086 INFO L225 Difference]: With dead ends: 849 [2022-07-21 06:08:24,086 INFO L226 Difference]: Without dead ends: 843 [2022-07-21 06:08:24,087 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 [2022-07-21 06:08:24,087 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 1233 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:24,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 3289 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2022-07-21 06:08:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 331. [2022-07-21 06:08:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 328 states have (on average 1.2835365853658536) internal successors, (421), 330 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:24,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 421 transitions. [2022-07-21 06:08:24,393 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 421 transitions. Word has length 103 [2022-07-21 06:08:24,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:24,394 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 421 transitions. [2022-07-21 06:08:24,394 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) [2022-07-21 06:08:24,394 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 421 transitions. [2022-07-21 06:08:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 06:08:24,394 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:24,395 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] [2022-07-21 06:08:24,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-07-21 06:08:24,395 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:24,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:24,395 INFO L85 PathProgramCache]: Analyzing trace with hash -996428293, now seen corresponding path program 1 times [2022-07-21 06:08:24,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:24,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494682673] [2022-07-21 06:08:24,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:24,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:25,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:25,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494682673] [2022-07-21 06:08:25,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494682673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:25,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:25,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-07-21 06:08:25,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501755144] [2022-07-21 06:08:25,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:25,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-21 06:08:25,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:25,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-21 06:08:25,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=980, Unknown=0, NotChecked=0, Total=1056 [2022-07-21 06:08:25,207 INFO L87 Difference]: Start difference. First operand 331 states and 421 transitions. Second operand has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 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) [2022-07-21 06:08:29,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:29,185 INFO L93 Difference]: Finished difference Result 570 states and 740 transitions. [2022-07-21 06:08:29,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-21 06:08:29,186 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 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 [2022-07-21 06:08:29,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:29,186 INFO L225 Difference]: With dead ends: 570 [2022-07-21 06:08:29,187 INFO L226 Difference]: Without dead ends: 562 [2022-07-21 06:08:29,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=517, Invalid=3265, Unknown=0, NotChecked=0, Total=3782 [2022-07-21 06:08:29,187 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1152 mSDsluCounter, 6320 mSDsCounter, 0 mSdLazyCounter, 3350 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 6661 SdHoareTripleChecker+Invalid, 3419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:29,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 6661 Invalid, 3419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3350 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 06:08:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-07-21 06:08:29,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 350. [2022-07-21 06:08:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 347 states have (on average 1.2795389048991355) internal successors, (444), 349 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 444 transitions. [2022-07-21 06:08:29,506 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 444 transitions. Word has length 103 [2022-07-21 06:08:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:29,506 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 444 transitions. [2022-07-21 06:08:29,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 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) [2022-07-21 06:08:29,507 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 444 transitions. [2022-07-21 06:08:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-21 06:08:29,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:29,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:08:29,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-07-21 06:08:29,507 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:29,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:29,508 INFO L85 PathProgramCache]: Analyzing trace with hash -443112637, now seen corresponding path program 1 times [2022-07-21 06:08:29,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:29,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306712033] [2022-07-21 06:08:29,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:29,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:29,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:29,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306712033] [2022-07-21 06:08:29,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306712033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:29,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:29,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:29,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018993374] [2022-07-21 06:08:29,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:29,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:29,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:29,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:29,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:29,813 INFO L87 Difference]: Start difference. First operand 350 states and 444 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:31,494 INFO L93 Difference]: Finished difference Result 982 states and 1324 transitions. [2022-07-21 06:08:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:31,494 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-07-21 06:08:31,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:31,496 INFO L225 Difference]: With dead ends: 982 [2022-07-21 06:08:31,496 INFO L226 Difference]: Without dead ends: 958 [2022-07-21 06:08:31,496 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 [2022-07-21 06:08:31,499 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 1428 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:31,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 2832 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-07-21 06:08:31,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 326. [2022-07-21 06:08:31,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 324 states have (on average 1.287037037037037) internal successors, (417), 325 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:31,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 417 transitions. [2022-07-21 06:08:31,807 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 417 transitions. Word has length 104 [2022-07-21 06:08:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:31,807 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 417 transitions. [2022-07-21 06:08:31,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 417 transitions. [2022-07-21 06:08:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-21 06:08:31,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:31,811 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] [2022-07-21 06:08:31,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-07-21 06:08:31,811 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:31,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:31,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1350243176, now seen corresponding path program 1 times [2022-07-21 06:08:31,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:31,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110097736] [2022-07-21 06:08:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:31,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:32,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:32,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110097736] [2022-07-21 06:08:32,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110097736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:32,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:32,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:08:32,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166705731] [2022-07-21 06:08:32,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:32,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:32,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:32,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:32,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:32,070 INFO L87 Difference]: Start difference. First operand 326 states and 417 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:34,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:34,510 INFO L93 Difference]: Finished difference Result 1156 states and 1623 transitions. [2022-07-21 06:08:34,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 06:08:34,510 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-07-21 06:08:34,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:34,512 INFO L225 Difference]: With dead ends: 1156 [2022-07-21 06:08:34,512 INFO L226 Difference]: Without dead ends: 1141 [2022-07-21 06:08:34,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:08:34,513 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 1400 mSDsluCounter, 3728 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:34,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 4274 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:08:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-07-21 06:08:34,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 295. [2022-07-21 06:08:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 294 states have (on average 1.2925170068027212) internal successors, (380), 294 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 380 transitions. [2022-07-21 06:08:34,822 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 380 transitions. Word has length 104 [2022-07-21 06:08:34,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:34,823 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 380 transitions. [2022-07-21 06:08:34,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 380 transitions. [2022-07-21 06:08:34,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-21 06:08:34,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:34,824 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] [2022-07-21 06:08:34,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-07-21 06:08:34,824 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash 448868843, now seen corresponding path program 1 times [2022-07-21 06:08:34,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:34,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778960018] [2022-07-21 06:08:34,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:34,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:34,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:34,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778960018] [2022-07-21 06:08:34,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778960018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:34,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:34,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:34,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602287328] [2022-07-21 06:08:34,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:34,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:08:34,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:08:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:08:34,905 INFO L87 Difference]: Start difference. First operand 295 states and 380 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:38,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:38,219 INFO L93 Difference]: Finished difference Result 2071 states and 3020 transitions. [2022-07-21 06:08:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 06:08:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-07-21 06:08:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:38,222 INFO L225 Difference]: With dead ends: 2071 [2022-07-21 06:08:38,223 INFO L226 Difference]: Without dead ends: 1923 [2022-07-21 06:08:38,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-07-21 06:08:38,227 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1808 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 3664 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:38,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 3664 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:08:38,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-07-21 06:08:38,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 441. [2022-07-21 06:08:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.3522727272727273) internal successors, (595), 440 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:38,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 595 transitions. [2022-07-21 06:08:38,824 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 595 transitions. Word has length 135 [2022-07-21 06:08:38,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:38,824 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 595 transitions. [2022-07-21 06:08:38,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 595 transitions. [2022-07-21 06:08:38,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 06:08:38,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:38,834 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] [2022-07-21 06:08:38,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-07-21 06:08:38,835 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:38,847 INFO L85 PathProgramCache]: Analyzing trace with hash -41714143, now seen corresponding path program 1 times [2022-07-21 06:08:38,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:38,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994885554] [2022-07-21 06:08:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:38,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:38,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:38,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994885554] [2022-07-21 06:08:38,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994885554] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:38,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:38,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:38,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560745428] [2022-07-21 06:08:38,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:38,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:08:38,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:38,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:08:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:08:38,966 INFO L87 Difference]: Start difference. First operand 441 states and 595 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:42,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:42,553 INFO L93 Difference]: Finished difference Result 2353 states and 3421 transitions. [2022-07-21 06:08:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:08:42,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-07-21 06:08:42,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:42,556 INFO L225 Difference]: With dead ends: 2353 [2022-07-21 06:08:42,556 INFO L226 Difference]: Without dead ends: 2059 [2022-07-21 06:08:42,557 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 [2022-07-21 06:08:42,557 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1531 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:42,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1936 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:08:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2022-07-21 06:08:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 733. [2022-07-21 06:08:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.4030054644808743) internal successors, (1027), 732 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1027 transitions. [2022-07-21 06:08:43,712 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1027 transitions. Word has length 137 [2022-07-21 06:08:43,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:43,712 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1027 transitions. [2022-07-21 06:08:43,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:43,713 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1027 transitions. [2022-07-21 06:08:43,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 06:08:43,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:43,715 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] [2022-07-21 06:08:43,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-07-21 06:08:43,715 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1023774299, now seen corresponding path program 1 times [2022-07-21 06:08:43,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:43,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731292822] [2022-07-21 06:08:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:43,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:43,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:43,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731292822] [2022-07-21 06:08:43,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731292822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:43,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:43,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:43,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115653310] [2022-07-21 06:08:43,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:43,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:08:43,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:43,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:08:43,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:08:43,840 INFO L87 Difference]: Start difference. First operand 733 states and 1027 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:48,164 INFO L93 Difference]: Finished difference Result 2645 states and 3853 transitions. [2022-07-21 06:08:48,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:08:48,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-07-21 06:08:48,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:48,167 INFO L225 Difference]: With dead ends: 2645 [2022-07-21 06:08:48,167 INFO L226 Difference]: Without dead ends: 2351 [2022-07-21 06:08:48,176 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 [2022-07-21 06:08:48,176 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1531 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:48,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1842 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:08:48,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2022-07-21 06:08:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 1171. [2022-07-21 06:08:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 1.4307692307692308) internal successors, (1674), 1170 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1674 transitions. [2022-07-21 06:08:50,157 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1674 transitions. Word has length 137 [2022-07-21 06:08:50,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:50,157 INFO L495 AbstractCegarLoop]: Abstraction has 1171 states and 1674 transitions. [2022-07-21 06:08:50,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:50,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1674 transitions. [2022-07-21 06:08:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 06:08:50,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:50,158 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] [2022-07-21 06:08:50,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-07-21 06:08:50,158 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:50,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:50,159 INFO L85 PathProgramCache]: Analyzing trace with hash 388220693, now seen corresponding path program 1 times [2022-07-21 06:08:50,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:50,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483651123] [2022-07-21 06:08:50,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:50,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:50,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:50,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483651123] [2022-07-21 06:08:50,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483651123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:50,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:50,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:50,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137809726] [2022-07-21 06:08:50,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:50,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:08:50,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:50,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:08:50,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:08:50,264 INFO L87 Difference]: Start difference. First operand 1171 states and 1674 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:54,991 INFO L93 Difference]: Finished difference Result 2937 states and 4285 transitions. [2022-07-21 06:08:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:08:54,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-07-21 06:08:54,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:54,995 INFO L225 Difference]: With dead ends: 2937 [2022-07-21 06:08:54,995 INFO L226 Difference]: Without dead ends: 2643 [2022-07-21 06:08:54,996 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 [2022-07-21 06:08:55,009 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1608 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:55,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 1748 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:08:55,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2022-07-21 06:08:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 1463. [2022-07-21 06:08:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1462 states have (on average 1.4404924760601916) internal successors, (2106), 1462 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2106 transitions. [2022-07-21 06:08:57,549 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2106 transitions. Word has length 137 [2022-07-21 06:08:57,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:57,549 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2106 transitions. [2022-07-21 06:08:57,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2106 transitions. [2022-07-21 06:08:57,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 06:08:57,551 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:57,551 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] [2022-07-21 06:08:57,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-07-21 06:08:57,551 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:57,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:57,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1948470775, now seen corresponding path program 1 times [2022-07-21 06:08:57,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:57,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960528875] [2022-07-21 06:08:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:57,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:57,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:57,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:57,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960528875] [2022-07-21 06:08:57,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960528875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:57,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:57,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:57,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777520549] [2022-07-21 06:08:57,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:57,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:08:57,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:57,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:08:57,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:08:57,667 INFO L87 Difference]: Start difference. First operand 1463 states and 2106 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:03,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:03,063 INFO L93 Difference]: Finished difference Result 3229 states and 4717 transitions. [2022-07-21 06:09:03,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:09:03,063 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-07-21 06:09:03,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:03,066 INFO L225 Difference]: With dead ends: 3229 [2022-07-21 06:09:03,066 INFO L226 Difference]: Without dead ends: 2935 [2022-07-21 06:09:03,066 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 [2022-07-21 06:09:03,067 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1718 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:09:03,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 1811 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:09:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2022-07-21 06:09:06,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1755. [2022-07-21 06:09:06,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1754 states have (on average 1.4469783352337515) internal successors, (2538), 1754 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:06,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2538 transitions. [2022-07-21 06:09:06,168 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2538 transitions. Word has length 137 [2022-07-21 06:09:06,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:09:06,168 INFO L495 AbstractCegarLoop]: Abstraction has 1755 states and 2538 transitions. [2022-07-21 06:09:06,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:06,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2538 transitions. [2022-07-21 06:09:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 06:09:06,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:09:06,170 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] [2022-07-21 06:09:06,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-07-21 06:09:06,170 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:09:06,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:09:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash 574551692, now seen corresponding path program 1 times [2022-07-21 06:09:06,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:09:06,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250132362] [2022-07-21 06:09:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:09:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:09:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:09:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:09:06,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:09:06,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250132362] [2022-07-21 06:09:06,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250132362] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:09:06,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:09:06,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:09:06,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180113403] [2022-07-21 06:09:06,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:09:06,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:09:06,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:09:06,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:09:06,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:09:06,319 INFO L87 Difference]: Start difference. First operand 1755 states and 2538 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:09,590 INFO L93 Difference]: Finished difference Result 3365 states and 4917 transitions. [2022-07-21 06:09:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:09:09,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-07-21 06:09:09,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:09,593 INFO L225 Difference]: With dead ends: 3365 [2022-07-21 06:09:09,593 INFO L226 Difference]: Without dead ends: 1757 [2022-07-21 06:09:09,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:09:09,595 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 928 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:09:09,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 754 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:09:09,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-07-21 06:09:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1755. [2022-07-21 06:09:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1754 states have (on average 1.4401368301026225) internal successors, (2526), 1754 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2526 transitions. [2022-07-21 06:09:12,654 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2526 transitions. Word has length 137 [2022-07-21 06:09:12,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:09:12,655 INFO L495 AbstractCegarLoop]: Abstraction has 1755 states and 2526 transitions. [2022-07-21 06:09:12,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:12,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2526 transitions. [2022-07-21 06:09:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 06:09:12,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:09:12,656 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] [2022-07-21 06:09:12,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-07-21 06:09:12,656 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:09:12,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:09:12,657 INFO L85 PathProgramCache]: Analyzing trace with hash -194741301, now seen corresponding path program 1 times [2022-07-21 06:09:12,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:09:12,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947586164] [2022-07-21 06:09:12,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:09:12,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:09:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:09:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:09:12,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:09:12,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947586164] [2022-07-21 06:09:12,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947586164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:09:12,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:09:12,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:09:12,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30560779] [2022-07-21 06:09:12,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:09:12,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:09:12,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:09:12,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:09:12,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:09:12,690 INFO L87 Difference]: Start difference. First operand 1755 states and 2526 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:18,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:18,589 INFO L93 Difference]: Finished difference Result 4829 states and 7020 transitions. [2022-07-21 06:09:18,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:09:18,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-07-21 06:09:18,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:18,593 INFO L225 Difference]: With dead ends: 4829 [2022-07-21 06:09:18,593 INFO L226 Difference]: Without dead ends: 3221 [2022-07-21 06:09:18,595 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 [2022-07-21 06:09:18,595 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 98 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 535 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 [2022-07-21 06:09:18,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 535 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:09:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2022-07-21 06:09:24,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 3219. [2022-07-21 06:09:24,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3219 states, 3218 states have (on average 1.4322560596643878) internal successors, (4609), 3218 states have internal predecessors, (4609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:24,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3219 states to 3219 states and 4609 transitions. [2022-07-21 06:09:24,618 INFO L78 Accepts]: Start accepts. Automaton has 3219 states and 4609 transitions. Word has length 137 [2022-07-21 06:09:24,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:09:24,618 INFO L495 AbstractCegarLoop]: Abstraction has 3219 states and 4609 transitions. [2022-07-21 06:09:24,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3219 states and 4609 transitions. [2022-07-21 06:09:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 06:09:24,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:09:24,619 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] [2022-07-21 06:09:24,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-07-21 06:09:24,620 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:09:24,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:09:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1350263875, now seen corresponding path program 1 times [2022-07-21 06:09:24,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:09:24,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560471242] [2022-07-21 06:09:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:09:24,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:09:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:09:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:09:24,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:09:24,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560471242] [2022-07-21 06:09:24,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560471242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:09:24,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:09:24,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:09:24,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340339637] [2022-07-21 06:09:24,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:09:24,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:09:24,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:09:24,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:09:24,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:09:24,680 INFO L87 Difference]: Start difference. First operand 3219 states and 4609 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:36,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:36,106 INFO L93 Difference]: Finished difference Result 6581 states and 9488 transitions. [2022-07-21 06:09:36,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:09:36,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-07-21 06:09:36,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:36,112 INFO L225 Difference]: With dead ends: 6581 [2022-07-21 06:09:36,112 INFO L226 Difference]: Without dead ends: 6021 [2022-07-21 06:09:36,113 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 [2022-07-21 06:09:36,113 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1559 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:09:36,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 1868 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:09:36,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2022-07-21 06:09:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3777. [2022-07-21 06:09:43,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3777 states, 3776 states have (on average 1.4345868644067796) internal successors, (5417), 3776 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5417 transitions. [2022-07-21 06:09:43,403 INFO L78 Accepts]: Start accepts. Automaton has 3777 states and 5417 transitions. Word has length 137 [2022-07-21 06:09:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:09:43,403 INFO L495 AbstractCegarLoop]: Abstraction has 3777 states and 5417 transitions. [2022-07-21 06:09:43,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:43,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3777 states and 5417 transitions. [2022-07-21 06:09:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 06:09:43,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:09:43,405 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] [2022-07-21 06:09:43,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-07-21 06:09:43,405 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:09:43,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:09:43,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1930438735, now seen corresponding path program 1 times [2022-07-21 06:09:43,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:09:43,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668317490] [2022-07-21 06:09:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:09:43,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:09:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:09:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:09:43,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:09:43,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668317490] [2022-07-21 06:09:43,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668317490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:09:43,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:09:43,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:09:43,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040103444] [2022-07-21 06:09:43,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:09:43,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:09:43,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:09:43,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:09:43,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:09:43,464 INFO L87 Difference]: Start difference. First operand 3777 states and 5417 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)