./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.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 72fb41a66cb1f9b8ef6e2c9a867b06ff465ce26afd613e6d36809476f178395e --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:26:45,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:26:45,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:26:45,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:26:45,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:26:45,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:26:45,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:26:45,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:26:45,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:26:45,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:26:45,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:26:45,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:26:45,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:26:45,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:26:45,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:26:45,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:26:45,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:26:45,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:26:45,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:26:45,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:26:45,956 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:26:45,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:26:45,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:26:45,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:26:45,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:26:45,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:26:45,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:26:45,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:26:45,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:26:45,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:26:45,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:26:45,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:26:45,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:26:45,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:26:45,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:26:45,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:26:45,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:26:45,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:26:45,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:26:45,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:26:45,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:26:45,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:26:45,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:26:45,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:26:45,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:26:45,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:26:45,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:26:46,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:26:46,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:26:46,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:26:46,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:26:46,001 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:26:46,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:26:46,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:26:46,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:26:46,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:26:46,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:26:46,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:26:46,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:26:46,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:26:46,004 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:26:46,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:26:46,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:26:46,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:26:46,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:26:46,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:26:46,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:26:46,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:26:46,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:26:46,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:26:46,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:26:46,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:26:46,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:26:46,006 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:26:46,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:26:46,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:26:46,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72fb41a66cb1f9b8ef6e2c9a867b06ff465ce26afd613e6d36809476f178395e [2022-07-12 07:26:46,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:26:46,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:26:46,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:26:46,220 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:26:46,221 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:26:46,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:26:46,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c15969c/143215597fb34d3b86bffaadd137e5e8/FLAG1e4bbe974 [2022-07-12 07:26:46,873 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:26:46,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:26:46,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c15969c/143215597fb34d3b86bffaadd137e5e8/FLAG1e4bbe974 [2022-07-12 07:26:47,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c15969c/143215597fb34d3b86bffaadd137e5e8 [2022-07-12 07:26:47,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:26:47,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:26:47,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:26:47,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:26:47,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:26:47,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:26:47" (1/1) ... [2022-07-12 07:26:47,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7e6995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47, skipping insertion in model container [2022-07-12 07:26:47,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:26:47" (1/1) ... [2022-07-12 07:26:47,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:26:47,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:26:47,613 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[13533,13546] [2022-07-12 07:26:47,638 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[18033,18046] [2022-07-12 07:26:47,645 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[19325,19338] [2022-07-12 07:26:47,649 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[20083,20096] [2022-07-12 07:26:47,656 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[21703,21716] [2022-07-12 07:26:47,660 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[22461,22474] [2022-07-12 07:26:47,664 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.UNBOUNDED.pals.c.v+lhb-reducer.c[23547,23560] [2022-07-12 07:26:47,679 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[26086,26099] [2022-07-12 07:26:47,690 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[26847,26860] [2022-07-12 07:26:47,694 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[27936,27949] [2022-07-12 07:26:47,705 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[29941,29954] [2022-07-12 07:26:47,717 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[33864,33877] [2022-07-12 07:26:47,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34625,34638] [2022-07-12 07:26:47,724 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[35718,35731] [2022-07-12 07:26:47,731 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[37727,37740] [2022-07-12 07:26:47,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41330,41343] [2022-07-12 07:26:47,769 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[48207,48220] [2022-07-12 07:26:47,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48968,48981] [2022-07-12 07:26:47,778 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[50057,50070] [2022-07-12 07:26:47,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52062,52075] [2022-07-12 07:26:47,799 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[55451,55464] [2022-07-12 07:26:47,833 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[61148,61161] [2022-07-12 07:26:48,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:26:48,072 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:26:48,145 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[13533,13546] [2022-07-12 07:26:48,155 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[18033,18046] [2022-07-12 07:26:48,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19325,19338] [2022-07-12 07:26:48,162 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[20083,20096] [2022-07-12 07:26:48,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21703,21716] [2022-07-12 07:26:48,170 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[22461,22474] [2022-07-12 07:26:48,173 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[23547,23560] [2022-07-12 07:26:48,182 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[26086,26099] [2022-07-12 07:26:48,184 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[26847,26860] [2022-07-12 07:26:48,188 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[27936,27949] [2022-07-12 07:26:48,194 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[29941,29954] [2022-07-12 07:26:48,203 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[33864,33877] [2022-07-12 07:26:48,206 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[34625,34638] [2022-07-12 07:26:48,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35718,35731] [2022-07-12 07:26:48,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37727,37740] [2022-07-12 07:26:48,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41330,41343] [2022-07-12 07:26:48,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48207,48220] [2022-07-12 07:26:48,248 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[48968,48981] [2022-07-12 07:26:48,251 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[50057,50070] [2022-07-12 07:26:48,255 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[52062,52075] [2022-07-12 07:26:48,277 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[55451,55464] [2022-07-12 07:26:48,286 WARN L230 ndardFunctionHandler]: Function reach_error is 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.UNBOUNDED.pals.c.v+lhb-reducer.c[61148,61161] [2022-07-12 07:26:48,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:26:48,542 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:26:48,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48 WrapperNode [2022-07-12 07:26:48,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:26:48,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:26:48,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:26:48,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:26:48,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,686 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6324 [2022-07-12 07:26:48,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:26:48,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:26:48,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:26:48,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:26:48,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:26:48,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:26:48,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:26:48,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:26:48,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (1/1) ... [2022-07-12 07:26:48,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:26:48,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:26:48,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 07:26:48,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 07:26:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:26:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:26:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:26:48,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:26:49,155 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:26:49,157 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:26:51,033 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:26:51,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:26:51,059 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:26:51,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:51 BoogieIcfgContainer [2022-07-12 07:26:51,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:26:51,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:26:51,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:26:51,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:26:51,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:26:47" (1/3) ... [2022-07-12 07:26:51,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a68a41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:26:51, skipping insertion in model container [2022-07-12 07:26:51,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:48" (2/3) ... [2022-07-12 07:26:51,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a68a41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:26:51, skipping insertion in model container [2022-07-12 07:26:51,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:51" (3/3) ... [2022-07-12 07:26:51,074 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-12 07:26:51,088 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:26:51,088 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-07-12 07:26:51,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:26:51,162 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@2109cfa7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e0dfe08 [2022-07-12 07:26:51,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-07-12 07:26:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:51,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:26:51,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:51,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:51,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:51,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:51,199 INFO L85 PathProgramCache]: Analyzing trace with hash -845723877, now seen corresponding path program 1 times [2022-07-12 07:26:51,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:51,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596463941] [2022-07-12 07:26:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:51,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:51,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:51,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596463941] [2022-07-12 07:26:51,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596463941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:51,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:51,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:26:51,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556976961] [2022-07-12 07:26:51,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:51,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:26:51,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:51,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:26:51,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:26:51,644 INFO L87 Difference]: Start difference. First operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 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 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:52,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:52,419 INFO L93 Difference]: Finished difference Result 2048 states and 3566 transitions. [2022-07-12 07:26:52,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:26:52,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-12 07:26:52,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:52,448 INFO L225 Difference]: With dead ends: 2048 [2022-07-12 07:26:52,448 INFO L226 Difference]: Without dead ends: 1214 [2022-07-12 07:26:52,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:26:52,456 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 5588 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5588 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:52,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5588 Valid, 1387 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:26:52,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-07-12 07:26:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1134. [2022-07-12 07:26:52,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 1112 states have (on average 1.3696043165467626) internal successors, (1523), 1133 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:52,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1523 transitions. [2022-07-12 07:26:52,546 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1523 transitions. Word has length 85 [2022-07-12 07:26:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:52,547 INFO L495 AbstractCegarLoop]: Abstraction has 1134 states and 1523 transitions. [2022-07-12 07:26:52,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:52,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1523 transitions. [2022-07-12 07:26:52,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-12 07:26:52,551 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:52,551 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] [2022-07-12 07:26:52,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:26:52,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:52,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:52,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1932230466, now seen corresponding path program 1 times [2022-07-12 07:26:52,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:52,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602225552] [2022-07-12 07:26:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:52,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:52,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:52,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602225552] [2022-07-12 07:26:52,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602225552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:52,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:52,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:26:52,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706182578] [2022-07-12 07:26:52,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:52,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:26:52,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:52,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:26:52,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:26:52,671 INFO L87 Difference]: Start difference. First operand 1134 states and 1523 transitions. 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) [2022-07-12 07:26:53,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:53,126 INFO L93 Difference]: Finished difference Result 1969 states and 2716 transitions. [2022-07-12 07:26:53,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:26:53,127 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 [2022-07-12 07:26:53,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:53,133 INFO L225 Difference]: With dead ends: 1969 [2022-07-12 07:26:53,133 INFO L226 Difference]: Without dead ends: 1030 [2022-07-12 07:26:53,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:26:53,140 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 2850 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:53,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 564 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:26:53,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-07-12 07:26:53,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2022-07-12 07:26:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1008 states have (on average 1.3898809523809523) internal successors, (1401), 1029 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1401 transitions. [2022-07-12 07:26:53,212 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1401 transitions. Word has length 86 [2022-07-12 07:26:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:53,212 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1401 transitions. [2022-07-12 07:26:53,212 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) [2022-07-12 07:26:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1401 transitions. [2022-07-12 07:26:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-12 07:26:53,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:53,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:53,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 07:26:53,215 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:53,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:53,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1627866598, now seen corresponding path program 1 times [2022-07-12 07:26:53,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:53,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652054949] [2022-07-12 07:26:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:53,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:53,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:53,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:53,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652054949] [2022-07-12 07:26:53,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652054949] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:53,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:53,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:26:53,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902463512] [2022-07-12 07:26:53,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:53,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:26:53,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:53,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:26:53,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:26:53,359 INFO L87 Difference]: Start difference. First operand 1030 states and 1401 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:53,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:53,768 INFO L93 Difference]: Finished difference Result 1865 states and 2592 transitions. [2022-07-12 07:26:53,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:26:53,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-12 07:26:53,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:53,771 INFO L225 Difference]: With dead ends: 1865 [2022-07-12 07:26:53,772 INFO L226 Difference]: Without dead ends: 966 [2022-07-12 07:26:53,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:26:53,774 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 2665 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:53,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 532 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:26:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-07-12 07:26:53,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-07-12 07:26:53,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 944 states have (on average 1.4057203389830508) internal successors, (1327), 965 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1327 transitions. [2022-07-12 07:26:53,810 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1327 transitions. Word has length 87 [2022-07-12 07:26:53,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:53,811 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1327 transitions. [2022-07-12 07:26:53,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1327 transitions. [2022-07-12 07:26:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-12 07:26:53,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:53,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:53,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 07:26:53,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:53,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:53,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2037300131, now seen corresponding path program 1 times [2022-07-12 07:26:53,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:53,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579026311] [2022-07-12 07:26:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:53,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:53,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:53,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:53,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579026311] [2022-07-12 07:26:53,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579026311] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:53,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:53,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:26:53,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708043456] [2022-07-12 07:26:53,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:53,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:26:53,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:53,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:26:53,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:26:53,880 INFO L87 Difference]: Start difference. First operand 966 states and 1327 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) [2022-07-12 07:26:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:54,238 INFO L93 Difference]: Finished difference Result 1801 states and 2516 transitions. [2022-07-12 07:26:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:26:54,239 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 [2022-07-12 07:26:54,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:54,242 INFO L225 Difference]: With dead ends: 1801 [2022-07-12 07:26:54,242 INFO L226 Difference]: Without dead ends: 925 [2022-07-12 07:26:54,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:26:54,244 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2565 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2565 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:54,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2565 Valid, 507 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:26:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-07-12 07:26:54,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 925. [2022-07-12 07:26:54,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.41749723145072) internal successors, (1280), 924 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:54,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1280 transitions. [2022-07-12 07:26:54,286 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1280 transitions. Word has length 88 [2022-07-12 07:26:54,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:54,286 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1280 transitions. [2022-07-12 07:26:54,286 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) [2022-07-12 07:26:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1280 transitions. [2022-07-12 07:26:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-12 07:26:54,288 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:54,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:54,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 07:26:54,289 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:54,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:54,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1730545767, now seen corresponding path program 1 times [2022-07-12 07:26:54,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:54,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478300703] [2022-07-12 07:26:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:54,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:54,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:54,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478300703] [2022-07-12 07:26:54,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478300703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:54,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:54,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:26:54,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188499380] [2022-07-12 07:26:54,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:54,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:26:54,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:54,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:26:54,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:26:54,378 INFO L87 Difference]: Start difference. First operand 925 states and 1280 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:54,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:54,731 INFO L93 Difference]: Finished difference Result 1760 states and 2467 transitions. [2022-07-12 07:26:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:26:54,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-07-12 07:26:54,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:54,735 INFO L225 Difference]: With dead ends: 1760 [2022-07-12 07:26:54,735 INFO L226 Difference]: Without dead ends: 906 [2022-07-12 07:26:54,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:26:54,737 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 2482 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:54,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2482 Valid, 496 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:26:54,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-07-12 07:26:54,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2022-07-12 07:26:54,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 884 states have (on average 1.4219457013574661) internal successors, (1257), 905 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:54,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1257 transitions. [2022-07-12 07:26:54,770 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1257 transitions. Word has length 89 [2022-07-12 07:26:54,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:54,770 INFO L495 AbstractCegarLoop]: Abstraction has 906 states and 1257 transitions. [2022-07-12 07:26:54,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:54,771 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1257 transitions. [2022-07-12 07:26:54,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-12 07:26:54,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:54,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:54,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 07:26:54,772 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:54,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:54,773 INFO L85 PathProgramCache]: Analyzing trace with hash -593456260, now seen corresponding path program 1 times [2022-07-12 07:26:54,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:54,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497318089] [2022-07-12 07:26:54,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:54,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:54,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:54,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497318089] [2022-07-12 07:26:54,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497318089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:54,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:54,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:26:54,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567689150] [2022-07-12 07:26:54,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:54,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:26:54,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:54,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:26:54,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:26:54,827 INFO L87 Difference]: Start difference. First operand 906 states and 1257 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) [2022-07-12 07:26:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:55,371 INFO L93 Difference]: Finished difference Result 1741 states and 2442 transitions. [2022-07-12 07:26:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:26:55,372 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 [2022-07-12 07:26:55,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:55,375 INFO L225 Difference]: With dead ends: 1741 [2022-07-12 07:26:55,375 INFO L226 Difference]: Without dead ends: 901 [2022-07-12 07:26:55,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:26:55,378 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2344 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2344 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:55,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2344 Valid, 421 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:26:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-07-12 07:26:55,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2022-07-12 07:26:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4209328782707622) internal successors, (1249), 900 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) [2022-07-12 07:26:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1249 transitions. [2022-07-12 07:26:55,429 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1249 transitions. Word has length 90 [2022-07-12 07:26:55,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:55,430 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1249 transitions. [2022-07-12 07:26:55,430 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) [2022-07-12 07:26:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1249 transitions. [2022-07-12 07:26:55,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 07:26:55,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:55,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:55,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 07:26:55,433 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:55,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:55,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1183984296, now seen corresponding path program 1 times [2022-07-12 07:26:55,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:55,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897732187] [2022-07-12 07:26:55,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:55,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:55,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:55,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897732187] [2022-07-12 07:26:55,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897732187] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:55,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:55,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:26:55,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495670021] [2022-07-12 07:26:55,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:55,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:26:55,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:55,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:26:55,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:26:55,587 INFO L87 Difference]: Start difference. First operand 901 states and 1249 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:56,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:56,378 INFO L93 Difference]: Finished difference Result 1639 states and 2213 transitions. [2022-07-12 07:26:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:26:56,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-12 07:26:56,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:56,383 INFO L225 Difference]: With dead ends: 1639 [2022-07-12 07:26:56,383 INFO L226 Difference]: Without dead ends: 1222 [2022-07-12 07:26:56,384 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 [2022-07-12 07:26:56,385 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 3789 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3789 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:56,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3789 Valid, 1026 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:26:56,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2022-07-12 07:26:56,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 901. [2022-07-12 07:26:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4197952218430034) internal successors, (1248), 900 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1248 transitions. [2022-07-12 07:26:56,472 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1248 transitions. Word has length 91 [2022-07-12 07:26:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:56,473 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1248 transitions. [2022-07-12 07:26:56,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:56,474 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1248 transitions. [2022-07-12 07:26:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 07:26:56,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:56,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:56,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 07:26:56,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:56,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:56,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1428942257, now seen corresponding path program 1 times [2022-07-12 07:26:56,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:56,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276731765] [2022-07-12 07:26:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:56,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:56,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:56,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:56,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276731765] [2022-07-12 07:26:56,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276731765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:56,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:56,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:26:56,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116450407] [2022-07-12 07:26:56,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:56,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:26:56,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:56,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:26:56,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:26:56,616 INFO L87 Difference]: Start difference. First operand 901 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:57,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:57,812 INFO L93 Difference]: Finished difference Result 1542 states and 2191 transitions. [2022-07-12 07:26:57,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:26:57,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-12 07:26:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:57,818 INFO L225 Difference]: With dead ends: 1542 [2022-07-12 07:26:57,818 INFO L226 Difference]: Without dead ends: 1278 [2022-07-12 07:26:57,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-12 07:26:57,820 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 2538 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:57,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 2812 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:26:57,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-07-12 07:26:57,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 901. [2022-07-12 07:26:57,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4186575654152447) internal successors, (1247), 900 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) [2022-07-12 07:26:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1247 transitions. [2022-07-12 07:26:57,881 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1247 transitions. Word has length 91 [2022-07-12 07:26:57,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:57,882 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1247 transitions. [2022-07-12 07:26:57,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1247 transitions. [2022-07-12 07:26:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 07:26:57,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:57,885 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] [2022-07-12 07:26:57,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 07:26:57,886 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:26:57,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:57,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1459275419, now seen corresponding path program 1 times [2022-07-12 07:26:57,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:57,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979452978] [2022-07-12 07:26:57,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:57,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:58,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:58,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:58,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979452978] [2022-07-12 07:26:58,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979452978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:58,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:58,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:26:58,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204194795] [2022-07-12 07:26:58,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:58,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:26:58,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:58,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:26:58,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:26:58,006 INFO L87 Difference]: Start difference. First operand 901 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:59,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:26:59,149 INFO L93 Difference]: Finished difference Result 1917 states and 2715 transitions. [2022-07-12 07:26:59,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:26:59,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-12 07:26:59,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:26:59,155 INFO L225 Difference]: With dead ends: 1917 [2022-07-12 07:26:59,156 INFO L226 Difference]: Without dead ends: 1722 [2022-07-12 07:26:59,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:26:59,158 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 4704 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4704 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:26:59,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4704 Valid, 2587 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:26:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-07-12 07:26:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2022-07-12 07:26:59,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4175199089874857) internal successors, (1246), 900 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) [2022-07-12 07:26:59,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1246 transitions. [2022-07-12 07:26:59,230 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1246 transitions. Word has length 91 [2022-07-12 07:26:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:26:59,230 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1246 transitions. [2022-07-12 07:26:59,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:26:59,230 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1246 transitions. [2022-07-12 07:26:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:26:59,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:26:59,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:26:59,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 07:26:59,233 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)] === [2022-07-12 07:26:59,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:26:59,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2136143015, now seen corresponding path program 1 times [2022-07-12 07:26:59,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:26:59,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572468757] [2022-07-12 07:26:59,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:26:59,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:26:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:26:59,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:26:59,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:26:59,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572468757] [2022-07-12 07:26:59,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572468757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:26:59,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:26:59,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:26:59,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54298214] [2022-07-12 07:26:59,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:26:59,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:26:59,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:26:59,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:26:59,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:26:59,370 INFO L87 Difference]: Start difference. First operand 901 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:00,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:00,216 INFO L93 Difference]: Finished difference Result 1528 states and 2149 transitions. [2022-07-12 07:27:00,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:27:00,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:27:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:00,219 INFO L225 Difference]: With dead ends: 1528 [2022-07-12 07:27:00,219 INFO L226 Difference]: Without dead ends: 1128 [2022-07-12 07:27:00,220 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 [2022-07-12 07:27:00,221 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 3719 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3719 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:00,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3719 Valid, 2073 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:27:00,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-07-12 07:27:00,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 901. [2022-07-12 07:27:00,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4152445961319682) internal successors, (1244), 900 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) [2022-07-12 07:27:00,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1244 transitions. [2022-07-12 07:27:00,289 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1244 transitions. Word has length 93 [2022-07-12 07:27:00,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:00,289 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1244 transitions. [2022-07-12 07:27:00,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:00,290 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1244 transitions. [2022-07-12 07:27:00,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:27:00,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:00,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:00,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 07:27:00,291 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:00,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2068984294, now seen corresponding path program 1 times [2022-07-12 07:27:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:00,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031151] [2022-07-12 07:27:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:00,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:00,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031151] [2022-07-12 07:27:00,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:00,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:00,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:00,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825793702] [2022-07-12 07:27:00,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:00,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:00,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:00,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:00,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:00,386 INFO L87 Difference]: Start difference. First operand 901 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:01,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:01,585 INFO L93 Difference]: Finished difference Result 1627 states and 2254 transitions. [2022-07-12 07:27:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:01,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:27:01,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:01,591 INFO L225 Difference]: With dead ends: 1627 [2022-07-12 07:27:01,591 INFO L226 Difference]: Without dead ends: 1622 [2022-07-12 07:27:01,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:01,593 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 4648 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:01,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4648 Valid, 2113 Invalid, 2055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-07-12 07:27:01,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-07-12 07:27:01,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4129692832764504) internal successors, (1242), 900 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:01,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1242 transitions. [2022-07-12 07:27:01,677 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1242 transitions. Word has length 93 [2022-07-12 07:27:01,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:01,677 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1242 transitions. [2022-07-12 07:27:01,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:01,677 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1242 transitions. [2022-07-12 07:27:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:27:01,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:01,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:01,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 07:27:01,680 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:01,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:01,680 INFO L85 PathProgramCache]: Analyzing trace with hash 928092964, now seen corresponding path program 1 times [2022-07-12 07:27:01,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:01,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95523169] [2022-07-12 07:27:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:01,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:01,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:01,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95523169] [2022-07-12 07:27:01,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95523169] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:01,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:01,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:01,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745301533] [2022-07-12 07:27:01,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:01,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:01,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:01,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:01,790 INFO L87 Difference]: Start difference. First operand 901 states and 1242 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:03,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:03,023 INFO L93 Difference]: Finished difference Result 1966 states and 2774 transitions. [2022-07-12 07:27:03,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:03,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:27:03,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:03,028 INFO L225 Difference]: With dead ends: 1966 [2022-07-12 07:27:03,028 INFO L226 Difference]: Without dead ends: 1722 [2022-07-12 07:27:03,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:03,029 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 2954 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:03,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 3264 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:03,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-07-12 07:27:03,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2022-07-12 07:27:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.410693970420933) internal successors, (1240), 900 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1240 transitions. [2022-07-12 07:27:03,097 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1240 transitions. Word has length 93 [2022-07-12 07:27:03,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:03,098 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1240 transitions. [2022-07-12 07:27:03,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1240 transitions. [2022-07-12 07:27:03,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:27:03,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:03,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:03,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 07:27:03,100 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:03,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:03,100 INFO L85 PathProgramCache]: Analyzing trace with hash 538302253, now seen corresponding path program 1 times [2022-07-12 07:27:03,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:03,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266202743] [2022-07-12 07:27:03,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:03,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:03,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:03,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266202743] [2022-07-12 07:27:03,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266202743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:03,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:03,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930849515] [2022-07-12 07:27:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:03,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:03,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:03,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:03,186 INFO L87 Difference]: Start difference. First operand 901 states and 1240 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:04,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:04,255 INFO L93 Difference]: Finished difference Result 1773 states and 2469 transitions. [2022-07-12 07:27:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:04,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:27:04,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:04,260 INFO L225 Difference]: With dead ends: 1773 [2022-07-12 07:27:04,260 INFO L226 Difference]: Without dead ends: 1622 [2022-07-12 07:27:04,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:04,262 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 4638 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4638 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:04,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4638 Valid, 2112 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:27:04,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-07-12 07:27:04,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-07-12 07:27:04,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4095563139931742) internal successors, (1239), 900 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) [2022-07-12 07:27:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1239 transitions. [2022-07-12 07:27:04,336 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1239 transitions. Word has length 93 [2022-07-12 07:27:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:04,336 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1239 transitions. [2022-07-12 07:27:04,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:04,336 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1239 transitions. [2022-07-12 07:27:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:27:04,337 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:04,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:04,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 07:27:04,338 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)] === [2022-07-12 07:27:04,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:04,338 INFO L85 PathProgramCache]: Analyzing trace with hash -350742557, now seen corresponding path program 1 times [2022-07-12 07:27:04,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:04,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495603118] [2022-07-12 07:27:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:04,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:04,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:04,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495603118] [2022-07-12 07:27:04,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495603118] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:04,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:04,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:04,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722098694] [2022-07-12 07:27:04,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:04,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:04,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:04,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:04,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:04,428 INFO L87 Difference]: Start difference. First operand 901 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:05,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:05,451 INFO L93 Difference]: Finished difference Result 1773 states and 2467 transitions. [2022-07-12 07:27:05,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:05,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:27:05,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:05,456 INFO L225 Difference]: With dead ends: 1773 [2022-07-12 07:27:05,456 INFO L226 Difference]: Without dead ends: 1622 [2022-07-12 07:27:05,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:05,457 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 2427 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:05,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 2115 Invalid, 1905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:27:05,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-07-12 07:27:05,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-07-12 07:27:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4084186575654152) internal successors, (1238), 900 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) [2022-07-12 07:27:05,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1238 transitions. [2022-07-12 07:27:05,551 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1238 transitions. Word has length 93 [2022-07-12 07:27:05,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:05,551 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1238 transitions. [2022-07-12 07:27:05,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1238 transitions. [2022-07-12 07:27:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:27:05,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:05,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:05,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 07:27:05,554 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:05,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1561454545, now seen corresponding path program 1 times [2022-07-12 07:27:05,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:05,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897637829] [2022-07-12 07:27:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:05,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:05,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897637829] [2022-07-12 07:27:05,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897637829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:05,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:05,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:05,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447972307] [2022-07-12 07:27:05,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:05,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:05,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:05,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:05,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:05,656 INFO L87 Difference]: Start difference. First operand 901 states and 1238 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:06,885 INFO L93 Difference]: Finished difference Result 1932 states and 2718 transitions. [2022-07-12 07:27:06,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:06,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:27:06,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:06,890 INFO L225 Difference]: With dead ends: 1932 [2022-07-12 07:27:06,890 INFO L226 Difference]: Without dead ends: 1722 [2022-07-12 07:27:06,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:06,891 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 4011 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4011 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:06,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4011 Valid, 3139 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:06,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-07-12 07:27:06,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2022-07-12 07:27:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4072810011376564) internal successors, (1237), 900 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) [2022-07-12 07:27:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1237 transitions. [2022-07-12 07:27:06,976 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1237 transitions. Word has length 93 [2022-07-12 07:27:06,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:06,976 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1237 transitions. [2022-07-12 07:27:06,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:06,976 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1237 transitions. [2022-07-12 07:27:06,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:27:06,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:06,978 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] [2022-07-12 07:27:06,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 07:27:06,978 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:06,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1779757049, now seen corresponding path program 1 times [2022-07-12 07:27:06,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:06,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609300210] [2022-07-12 07:27:06,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:06,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:07,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609300210] [2022-07-12 07:27:07,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609300210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:07,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:07,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365212656] [2022-07-12 07:27:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:07,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:07,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:07,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:07,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:07,059 INFO L87 Difference]: Start difference. First operand 901 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:08,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:08,215 INFO L93 Difference]: Finished difference Result 1770 states and 2462 transitions. [2022-07-12 07:27:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:08,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:27:08,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:08,222 INFO L225 Difference]: With dead ends: 1770 [2022-07-12 07:27:08,222 INFO L226 Difference]: Without dead ends: 1622 [2022-07-12 07:27:08,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:08,223 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 3518 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3518 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:08,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3518 Valid, 2116 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:27:08,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-07-12 07:27:08,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-07-12 07:27:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4061433447098977) internal successors, (1236), 900 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) [2022-07-12 07:27:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1236 transitions. [2022-07-12 07:27:08,336 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1236 transitions. Word has length 93 [2022-07-12 07:27:08,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:08,337 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1236 transitions. [2022-07-12 07:27:08,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:08,337 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1236 transitions. [2022-07-12 07:27:08,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:27:08,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:08,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:08,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 07:27:08,340 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:08,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash 162924990, now seen corresponding path program 1 times [2022-07-12 07:27:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:08,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448927227] [2022-07-12 07:27:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:08,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:08,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:08,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:08,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448927227] [2022-07-12 07:27:08,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448927227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:08,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:08,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:08,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834904822] [2022-07-12 07:27:08,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:08,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:08,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:08,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:08,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:08,446 INFO L87 Difference]: Start difference. First operand 901 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:09,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:09,710 INFO L93 Difference]: Finished difference Result 1627 states and 2242 transitions. [2022-07-12 07:27:09,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:09,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:27:09,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:09,715 INFO L225 Difference]: With dead ends: 1627 [2022-07-12 07:27:09,715 INFO L226 Difference]: Without dead ends: 1622 [2022-07-12 07:27:09,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:09,715 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 3518 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3518 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:09,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3518 Valid, 2113 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:09,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-07-12 07:27:09,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-07-12 07:27:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.405005688282139) internal successors, (1235), 900 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) [2022-07-12 07:27:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1235 transitions. [2022-07-12 07:27:09,797 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1235 transitions. Word has length 93 [2022-07-12 07:27:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:09,798 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1235 transitions. [2022-07-12 07:27:09,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:09,798 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1235 transitions. [2022-07-12 07:27:09,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:09,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:09,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:09,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 07:27:09,800 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)] === [2022-07-12 07:27:09,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:09,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1878690134, now seen corresponding path program 1 times [2022-07-12 07:27:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:09,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158492834] [2022-07-12 07:27:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:09,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:09,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:09,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158492834] [2022-07-12 07:27:09,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158492834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:09,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:09,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:09,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152529828] [2022-07-12 07:27:09,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:09,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:09,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:09,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:09,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:09,904 INFO L87 Difference]: Start difference. First operand 901 states and 1235 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:11,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:11,278 INFO L93 Difference]: Finished difference Result 1896 states and 2660 transitions. [2022-07-12 07:27:11,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:11,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:11,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:11,284 INFO L225 Difference]: With dead ends: 1896 [2022-07-12 07:27:11,284 INFO L226 Difference]: Without dead ends: 1694 [2022-07-12 07:27:11,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:27:11,285 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 4637 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:11,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4637 Valid, 2638 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:11,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-07-12 07:27:11,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2022-07-12 07:27:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4027303754266212) internal successors, (1233), 900 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) [2022-07-12 07:27:11,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1233 transitions. [2022-07-12 07:27:11,375 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1233 transitions. Word has length 95 [2022-07-12 07:27:11,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:11,375 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1233 transitions. [2022-07-12 07:27:11,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:11,376 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1233 transitions. [2022-07-12 07:27:11,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:11,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:11,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:11,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 07:27:11,377 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)] === [2022-07-12 07:27:11,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:11,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1469844906, now seen corresponding path program 1 times [2022-07-12 07:27:11,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:11,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342725479] [2022-07-12 07:27:11,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:11,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:11,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:11,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342725479] [2022-07-12 07:27:11,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342725479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:11,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:11,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:11,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780450319] [2022-07-12 07:27:11,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:11,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:11,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:11,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:11,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:11,508 INFO L87 Difference]: Start difference. First operand 901 states and 1233 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:12,846 INFO L93 Difference]: Finished difference Result 1838 states and 2566 transitions. [2022-07-12 07:27:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:12,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:12,852 INFO L225 Difference]: With dead ends: 1838 [2022-07-12 07:27:12,852 INFO L226 Difference]: Without dead ends: 1670 [2022-07-12 07:27:12,853 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 [2022-07-12 07:27:12,854 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 3955 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3955 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:12,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3955 Valid, 2958 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-07-12 07:27:12,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 901. [2022-07-12 07:27:13,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4004550625711036) internal successors, (1231), 900 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1231 transitions. [2022-07-12 07:27:13,001 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1231 transitions. Word has length 95 [2022-07-12 07:27:13,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:13,001 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1231 transitions. [2022-07-12 07:27:13,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1231 transitions. [2022-07-12 07:27:13,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:13,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:13,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:13,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 07:27:13,007 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:13,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:13,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2020844490, now seen corresponding path program 1 times [2022-07-12 07:27:13,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:13,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127461045] [2022-07-12 07:27:13,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:13,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:13,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:13,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127461045] [2022-07-12 07:27:13,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127461045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:13,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:13,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:13,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35608591] [2022-07-12 07:27:13,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:13,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:13,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:13,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:13,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:13,096 INFO L87 Difference]: Start difference. First operand 901 states and 1231 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:14,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:14,544 INFO L93 Difference]: Finished difference Result 1998 states and 2795 transitions. [2022-07-12 07:27:14,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:14,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:14,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:14,549 INFO L225 Difference]: With dead ends: 1998 [2022-07-12 07:27:14,549 INFO L226 Difference]: Without dead ends: 1722 [2022-07-12 07:27:14,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:14,551 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 2109 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:14,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 3109 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:27:14,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-07-12 07:27:14,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2022-07-12 07:27:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.398179749715586) internal successors, (1229), 900 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1229 transitions. [2022-07-12 07:27:14,686 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1229 transitions. Word has length 95 [2022-07-12 07:27:14,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:14,687 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1229 transitions. [2022-07-12 07:27:14,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:14,687 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1229 transitions. [2022-07-12 07:27:14,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:14,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:14,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:14,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 07:27:14,689 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:14,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:14,690 INFO L85 PathProgramCache]: Analyzing trace with hash -742387417, now seen corresponding path program 1 times [2022-07-12 07:27:14,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:14,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35387945] [2022-07-12 07:27:14,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:14,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:14,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:14,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:14,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35387945] [2022-07-12 07:27:14,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35387945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:14,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:14,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:14,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435677804] [2022-07-12 07:27:14,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:14,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:14,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:14,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:14,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:14,784 INFO L87 Difference]: Start difference. First operand 901 states and 1229 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:16,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:16,087 INFO L93 Difference]: Finished difference Result 1884 states and 2638 transitions. [2022-07-12 07:27:16,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:16,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:16,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:16,090 INFO L225 Difference]: With dead ends: 1884 [2022-07-12 07:27:16,091 INFO L226 Difference]: Without dead ends: 1694 [2022-07-12 07:27:16,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:27:16,094 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 4336 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4336 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:16,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4336 Valid, 2884 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:16,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-07-12 07:27:16,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2022-07-12 07:27:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.3959044368600682) internal successors, (1227), 900 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) [2022-07-12 07:27:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1227 transitions. [2022-07-12 07:27:16,197 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1227 transitions. Word has length 95 [2022-07-12 07:27:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:16,197 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1227 transitions. [2022-07-12 07:27:16,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1227 transitions. [2022-07-12 07:27:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:16,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:16,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:16,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 07:27:16,198 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)] === [2022-07-12 07:27:16,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:16,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722797, now seen corresponding path program 1 times [2022-07-12 07:27:16,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:16,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037323124] [2022-07-12 07:27:16,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:16,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:16,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:16,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037323124] [2022-07-12 07:27:16,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037323124] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:16,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:16,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:16,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354002588] [2022-07-12 07:27:16,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:16,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:16,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:16,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:16,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:16,313 INFO L87 Difference]: Start difference. First operand 901 states and 1227 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:17,577 INFO L93 Difference]: Finished difference Result 1832 states and 2553 transitions. [2022-07-12 07:27:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:17,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:17,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:17,580 INFO L225 Difference]: With dead ends: 1832 [2022-07-12 07:27:17,580 INFO L226 Difference]: Without dead ends: 1670 [2022-07-12 07:27:17,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:17,581 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 3904 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3904 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:17,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3904 Valid, 3031 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:17,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-07-12 07:27:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 901. [2022-07-12 07:27:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.3936291240045506) internal successors, (1225), 900 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) [2022-07-12 07:27:17,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1225 transitions. [2022-07-12 07:27:17,685 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1225 transitions. Word has length 95 [2022-07-12 07:27:17,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:17,685 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1225 transitions. [2022-07-12 07:27:17,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:17,685 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1225 transitions. [2022-07-12 07:27:17,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:17,686 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:17,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:17,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 07:27:17,687 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:17,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:17,687 INFO L85 PathProgramCache]: Analyzing trace with hash -891627133, now seen corresponding path program 1 times [2022-07-12 07:27:17,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:17,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328548843] [2022-07-12 07:27:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:17,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:17,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:17,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328548843] [2022-07-12 07:27:17,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328548843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:17,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:17,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:17,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933662265] [2022-07-12 07:27:17,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:17,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:17,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:17,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:17,808 INFO L87 Difference]: Start difference. First operand 901 states and 1225 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:19,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:19,165 INFO L93 Difference]: Finished difference Result 1834 states and 2552 transitions. [2022-07-12 07:27:19,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:19,166 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:19,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:19,169 INFO L225 Difference]: With dead ends: 1834 [2022-07-12 07:27:19,169 INFO L226 Difference]: Without dead ends: 1670 [2022-07-12 07:27:19,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:19,170 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 3904 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3904 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:19,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3904 Valid, 3028 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:19,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-07-12 07:27:19,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 901. [2022-07-12 07:27:19,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.391353811149033) internal successors, (1223), 900 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) [2022-07-12 07:27:19,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1223 transitions. [2022-07-12 07:27:19,289 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1223 transitions. Word has length 95 [2022-07-12 07:27:19,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:19,290 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1223 transitions. [2022-07-12 07:27:19,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:19,290 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1223 transitions. [2022-07-12 07:27:19,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:19,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:19,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:19,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 07:27:19,291 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:19,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:19,292 INFO L85 PathProgramCache]: Analyzing trace with hash -482781905, now seen corresponding path program 1 times [2022-07-12 07:27:19,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:19,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605866033] [2022-07-12 07:27:19,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:19,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:19,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:19,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605866033] [2022-07-12 07:27:19,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605866033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:19,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:19,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:27:19,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485823865] [2022-07-12 07:27:19,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:19,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:27:19,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:19,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:27:19,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:27:19,464 INFO L87 Difference]: Start difference. First operand 901 states and 1223 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:22,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:22,454 INFO L93 Difference]: Finished difference Result 2968 states and 4227 transitions. [2022-07-12 07:27:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:27:22,454 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:22,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:22,458 INFO L225 Difference]: With dead ends: 2968 [2022-07-12 07:27:22,458 INFO L226 Difference]: Without dead ends: 2778 [2022-07-12 07:27:22,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:27:22,459 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 5872 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5872 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 3484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:22,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5872 Valid, 3708 Invalid, 3484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 07:27:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2022-07-12 07:27:22,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 909. [2022-07-12 07:27:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3878241262683202) internal successors, (1231), 908 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:22,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1231 transitions. [2022-07-12 07:27:22,594 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1231 transitions. Word has length 95 [2022-07-12 07:27:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:22,595 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1231 transitions. [2022-07-12 07:27:22,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1231 transitions. [2022-07-12 07:27:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:22,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:22,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:22,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 07:27:22,596 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:22,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:22,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1726591378, now seen corresponding path program 1 times [2022-07-12 07:27:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:22,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57150758] [2022-07-12 07:27:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:22,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:22,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:22,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57150758] [2022-07-12 07:27:22,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57150758] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:22,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:22,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:22,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252175652] [2022-07-12 07:27:22,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:22,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:22,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:22,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:22,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:22,717 INFO L87 Difference]: Start difference. First operand 909 states and 1231 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:24,306 INFO L93 Difference]: Finished difference Result 1865 states and 2602 transitions. [2022-07-12 07:27:24,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:24,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:24,310 INFO L225 Difference]: With dead ends: 1865 [2022-07-12 07:27:24,310 INFO L226 Difference]: Without dead ends: 1694 [2022-07-12 07:27:24,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:27:24,311 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 4168 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:24,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 2832 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:24,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-07-12 07:27:24,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 909. [2022-07-12 07:27:24,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3866967305524238) internal successors, (1230), 908 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:24,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1230 transitions. [2022-07-12 07:27:24,465 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1230 transitions. Word has length 95 [2022-07-12 07:27:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:24,465 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1230 transitions. [2022-07-12 07:27:24,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1230 transitions. [2022-07-12 07:27:24,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:24,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:24,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:24,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 07:27:24,467 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:24,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:24,467 INFO L85 PathProgramCache]: Analyzing trace with hash -738270563, now seen corresponding path program 1 times [2022-07-12 07:27:24,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:24,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296142913] [2022-07-12 07:27:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:24,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:24,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:24,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296142913] [2022-07-12 07:27:24,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296142913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:24,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:24,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:24,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826055833] [2022-07-12 07:27:24,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:24,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:24,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:24,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:24,575 INFO L87 Difference]: Start difference. First operand 909 states and 1230 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:26,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:26,131 INFO L93 Difference]: Finished difference Result 1832 states and 2545 transitions. [2022-07-12 07:27:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:26,132 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:26,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:26,134 INFO L225 Difference]: With dead ends: 1832 [2022-07-12 07:27:26,134 INFO L226 Difference]: Without dead ends: 1678 [2022-07-12 07:27:26,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:26,135 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 3862 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3862 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:26,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3862 Valid, 3106 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:27:26,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-07-12 07:27:26,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 909. [2022-07-12 07:27:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3855693348365277) internal successors, (1229), 908 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1229 transitions. [2022-07-12 07:27:26,272 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1229 transitions. Word has length 95 [2022-07-12 07:27:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:26,272 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1229 transitions. [2022-07-12 07:27:26,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1229 transitions. [2022-07-12 07:27:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:26,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:26,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:26,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 07:27:26,273 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:26,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:26,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1229098544, now seen corresponding path program 1 times [2022-07-12 07:27:26,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:26,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949962175] [2022-07-12 07:27:26,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:26,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:26,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:26,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:26,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949962175] [2022-07-12 07:27:26,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949962175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:26,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:26,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:27:26,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843128531] [2022-07-12 07:27:26,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:26,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:27:26,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:26,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:27:26,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:27:26,461 INFO L87 Difference]: Start difference. First operand 909 states and 1229 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:29,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:29,302 INFO L93 Difference]: Finished difference Result 2948 states and 4193 transitions. [2022-07-12 07:27:29,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:27:29,303 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:29,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:29,306 INFO L225 Difference]: With dead ends: 2948 [2022-07-12 07:27:29,307 INFO L226 Difference]: Without dead ends: 2768 [2022-07-12 07:27:29,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:27:29,308 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 6629 mSDsluCounter, 3464 mSDsCounter, 0 mSdLazyCounter, 3399 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6629 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 3944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 3399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:29,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6629 Valid, 4292 Invalid, 3944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 3399 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 07:27:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2022-07-12 07:27:29,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 913. [2022-07-12 07:27:29,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3838383838383839) internal successors, (1233), 912 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) [2022-07-12 07:27:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1233 transitions. [2022-07-12 07:27:29,452 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1233 transitions. Word has length 95 [2022-07-12 07:27:29,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:29,452 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1233 transitions. [2022-07-12 07:27:29,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:29,452 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1233 transitions. [2022-07-12 07:27:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:29,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:29,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:29,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 07:27:29,453 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:29,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:29,454 INFO L85 PathProgramCache]: Analyzing trace with hash 744826422, now seen corresponding path program 1 times [2022-07-12 07:27:29,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:29,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857919903] [2022-07-12 07:27:29,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:29,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:29,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:29,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857919903] [2022-07-12 07:27:29,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857919903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:29,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:29,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:29,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997674338] [2022-07-12 07:27:29,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:29,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:29,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:29,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:29,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:29,535 INFO L87 Difference]: Start difference. First operand 913 states and 1233 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:30,996 INFO L93 Difference]: Finished difference Result 1840 states and 2552 transitions. [2022-07-12 07:27:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:30,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:30,999 INFO L225 Difference]: With dead ends: 1840 [2022-07-12 07:27:30,999 INFO L226 Difference]: Without dead ends: 1682 [2022-07-12 07:27:31,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:31,000 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 3859 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3859 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 2481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:31,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3859 Valid, 3102 Invalid, 2481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-07-12 07:27:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 913. [2022-07-12 07:27:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.382716049382716) internal successors, (1232), 912 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:31,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1232 transitions. [2022-07-12 07:27:31,155 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1232 transitions. Word has length 95 [2022-07-12 07:27:31,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:31,155 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1232 transitions. [2022-07-12 07:27:31,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:31,155 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1232 transitions. [2022-07-12 07:27:31,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:31,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:31,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:31,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 07:27:31,156 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)] === [2022-07-12 07:27:31,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:31,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1040432620, now seen corresponding path program 1 times [2022-07-12 07:27:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:31,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160373255] [2022-07-12 07:27:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:31,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:31,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:31,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160373255] [2022-07-12 07:27:31,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160373255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:31,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:31,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:31,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483681351] [2022-07-12 07:27:31,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:31,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:31,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:31,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:31,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:31,257 INFO L87 Difference]: Start difference. First operand 913 states and 1232 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:32,568 INFO L93 Difference]: Finished difference Result 1859 states and 2591 transitions. [2022-07-12 07:27:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:32,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:32,571 INFO L225 Difference]: With dead ends: 1859 [2022-07-12 07:27:32,571 INFO L226 Difference]: Without dead ends: 1694 [2022-07-12 07:27:32,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:27:32,572 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 4304 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:32,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4304 Valid, 2702 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:27:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-07-12 07:27:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 913. [2022-07-12 07:27:32,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3815937149270483) internal successors, (1231), 912 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1231 transitions. [2022-07-12 07:27:32,733 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1231 transitions. Word has length 95 [2022-07-12 07:27:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:32,733 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1231 transitions. [2022-07-12 07:27:32,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:32,733 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1231 transitions. [2022-07-12 07:27:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:32,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:32,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:32,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 07:27:32,734 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:32,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:32,734 INFO L85 PathProgramCache]: Analyzing trace with hash -359034935, now seen corresponding path program 1 times [2022-07-12 07:27:32,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:32,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306680407] [2022-07-12 07:27:32,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:32,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:32,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:32,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306680407] [2022-07-12 07:27:32,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306680407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:32,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:32,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:32,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525344569] [2022-07-12 07:27:32,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:32,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:32,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:32,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:32,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:32,825 INFO L87 Difference]: Start difference. First operand 913 states and 1231 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:34,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:34,425 INFO L93 Difference]: Finished difference Result 1834 states and 2544 transitions. [2022-07-12 07:27:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:34,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:34,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:34,441 INFO L225 Difference]: With dead ends: 1834 [2022-07-12 07:27:34,441 INFO L226 Difference]: Without dead ends: 1682 [2022-07-12 07:27:34,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:34,442 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 3817 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3817 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:34,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3817 Valid, 3163 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:27:34,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-07-12 07:27:34,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 913. [2022-07-12 07:27:34,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3804713804713804) internal successors, (1230), 912 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1230 transitions. [2022-07-12 07:27:34,650 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1230 transitions. Word has length 95 [2022-07-12 07:27:34,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:34,650 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1230 transitions. [2022-07-12 07:27:34,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:34,650 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1230 transitions. [2022-07-12 07:27:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:34,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:34,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:34,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 07:27:34,652 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)] === [2022-07-12 07:27:34,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:34,652 INFO L85 PathProgramCache]: Analyzing trace with hash 933080142, now seen corresponding path program 1 times [2022-07-12 07:27:34,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:34,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128897162] [2022-07-12 07:27:34,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:34,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:34,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:34,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128897162] [2022-07-12 07:27:34,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128897162] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:34,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:34,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:27:34,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819542673] [2022-07-12 07:27:34,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:34,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:27:34,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:34,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:27:34,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:27:34,775 INFO L87 Difference]: Start difference. First operand 913 states and 1230 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:37,481 INFO L93 Difference]: Finished difference Result 2930 states and 4170 transitions. [2022-07-12 07:27:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:27:37,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:37,485 INFO L225 Difference]: With dead ends: 2930 [2022-07-12 07:27:37,485 INFO L226 Difference]: Without dead ends: 2759 [2022-07-12 07:27:37,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:27:37,487 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 6835 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6835 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 3255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:37,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6835 Valid, 3380 Invalid, 3255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:27:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-07-12 07:27:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 917. [2022-07-12 07:27:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3787709497206704) internal successors, (1234), 916 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) [2022-07-12 07:27:37,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1234 transitions. [2022-07-12 07:27:37,670 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1234 transitions. Word has length 95 [2022-07-12 07:27:37,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:37,670 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1234 transitions. [2022-07-12 07:27:37,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:37,670 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1234 transitions. [2022-07-12 07:27:37,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:27:37,671 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:37,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:37,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-12 07:27:37,671 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)] === [2022-07-12 07:27:37,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:37,672 INFO L85 PathProgramCache]: Analyzing trace with hash -698776940, now seen corresponding path program 1 times [2022-07-12 07:27:37,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:37,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109754798] [2022-07-12 07:27:37,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:37,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:37,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:37,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:37,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109754798] [2022-07-12 07:27:37,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109754798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:37,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:37,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:37,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582206682] [2022-07-12 07:27:37,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:37,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:37,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:37,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:37,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:37,780 INFO L87 Difference]: Start difference. First operand 917 states and 1234 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:39,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:39,262 INFO L93 Difference]: Finished difference Result 1840 states and 2549 transitions. [2022-07-12 07:27:39,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:39,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:27:39,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:39,264 INFO L225 Difference]: With dead ends: 1840 [2022-07-12 07:27:39,264 INFO L226 Difference]: Without dead ends: 1686 [2022-07-12 07:27:39,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:39,265 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 3814 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3814 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:39,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3814 Valid, 3163 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:39,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-12 07:27:39,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 917. [2022-07-12 07:27:39,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3776536312849161) internal successors, (1233), 916 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) [2022-07-12 07:27:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1233 transitions. [2022-07-12 07:27:39,449 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1233 transitions. Word has length 95 [2022-07-12 07:27:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:39,450 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1233 transitions. [2022-07-12 07:27:39,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:39,450 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1233 transitions. [2022-07-12 07:27:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:27:39,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:39,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:39,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-12 07:27:39,451 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:39,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:39,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1514074373, now seen corresponding path program 1 times [2022-07-12 07:27:39,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:39,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689686967] [2022-07-12 07:27:39,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:39,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:39,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:39,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:39,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689686967] [2022-07-12 07:27:39,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689686967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:39,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:39,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:39,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119655397] [2022-07-12 07:27:39,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:39,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:39,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:39,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:39,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:39,557 INFO L87 Difference]: Start difference. First operand 917 states and 1233 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:41,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:41,233 INFO L93 Difference]: Finished difference Result 1884 states and 2615 transitions. [2022-07-12 07:27:41,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:41,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:27:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:41,235 INFO L225 Difference]: With dead ends: 1884 [2022-07-12 07:27:41,235 INFO L226 Difference]: Without dead ends: 1694 [2022-07-12 07:27:41,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:41,236 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 2070 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:41,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 2979 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:41,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-07-12 07:27:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 909. [2022-07-12 07:27:41,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3788049605411499) internal successors, (1223), 908 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) [2022-07-12 07:27:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1223 transitions. [2022-07-12 07:27:41,408 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1223 transitions. Word has length 96 [2022-07-12 07:27:41,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:41,408 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1223 transitions. [2022-07-12 07:27:41,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:41,408 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1223 transitions. [2022-07-12 07:27:41,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:27:41,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:41,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:41,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 07:27:41,410 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:41,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:41,410 INFO L85 PathProgramCache]: Analyzing trace with hash -411424135, now seen corresponding path program 1 times [2022-07-12 07:27:41,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:41,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461694599] [2022-07-12 07:27:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:41,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:41,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:41,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461694599] [2022-07-12 07:27:41,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461694599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:41,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:41,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:41,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717369775] [2022-07-12 07:27:41,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:41,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:41,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:41,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:41,492 INFO L87 Difference]: Start difference. First operand 909 states and 1223 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:42,997 INFO L93 Difference]: Finished difference Result 1874 states and 2598 transitions. [2022-07-12 07:27:42,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:42,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:27:42,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:43,000 INFO L225 Difference]: With dead ends: 1874 [2022-07-12 07:27:43,000 INFO L226 Difference]: Without dead ends: 1694 [2022-07-12 07:27:43,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:43,001 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 2963 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2963 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:43,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2963 Valid, 3079 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:27:43,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-07-12 07:27:43,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 905. [2022-07-12 07:27:43,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3793884484711212) internal successors, (1218), 904 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) [2022-07-12 07:27:43,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1218 transitions. [2022-07-12 07:27:43,174 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1218 transitions. Word has length 96 [2022-07-12 07:27:43,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:43,174 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1218 transitions. [2022-07-12 07:27:43,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1218 transitions. [2022-07-12 07:27:43,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:27:43,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:43,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:43,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 07:27:43,176 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:43,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:43,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1570558424, now seen corresponding path program 1 times [2022-07-12 07:27:43,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:43,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217060082] [2022-07-12 07:27:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:43,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:43,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:43,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217060082] [2022-07-12 07:27:43,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217060082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:43,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:43,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:43,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111570491] [2022-07-12 07:27:43,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:43,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:43,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:43,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:43,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:43,245 INFO L87 Difference]: Start difference. First operand 905 states and 1218 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:44,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:44,653 INFO L93 Difference]: Finished difference Result 1865 states and 2588 transitions. [2022-07-12 07:27:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:44,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:27:44,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:44,656 INFO L225 Difference]: With dead ends: 1865 [2022-07-12 07:27:44,656 INFO L226 Difference]: Without dead ends: 1694 [2022-07-12 07:27:44,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:44,657 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 3394 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3394 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:44,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3394 Valid, 3163 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:27:44,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-07-12 07:27:44,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2022-07-12 07:27:44,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.3799772468714449) internal successors, (1213), 900 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) [2022-07-12 07:27:44,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1213 transitions. [2022-07-12 07:27:44,824 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1213 transitions. Word has length 96 [2022-07-12 07:27:44,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:44,825 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1213 transitions. [2022-07-12 07:27:44,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:44,825 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1213 transitions. [2022-07-12 07:27:44,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:27:44,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:44,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:44,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-12 07:27:44,826 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:44,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:44,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1541256586, now seen corresponding path program 1 times [2022-07-12 07:27:44,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:44,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691824043] [2022-07-12 07:27:44,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:44,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:44,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:44,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691824043] [2022-07-12 07:27:44,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691824043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:44,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:44,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:44,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257265549] [2022-07-12 07:27:44,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:44,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:44,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:44,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:44,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:44,908 INFO L87 Difference]: Start difference. First operand 901 states and 1213 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:46,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:46,565 INFO L93 Difference]: Finished difference Result 1772 states and 2438 transitions. [2022-07-12 07:27:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:46,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:27:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:46,567 INFO L225 Difference]: With dead ends: 1772 [2022-07-12 07:27:46,567 INFO L226 Difference]: Without dead ends: 1622 [2022-07-12 07:27:46,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:46,568 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 3686 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 2452 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3686 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 2452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:46,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3686 Valid, 3079 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 2452 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:27:46,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-07-12 07:27:46,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-07-12 07:27:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.377701934015927) internal successors, (1211), 900 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) [2022-07-12 07:27:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1211 transitions. [2022-07-12 07:27:46,742 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1211 transitions. Word has length 97 [2022-07-12 07:27:46,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:46,742 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1211 transitions. [2022-07-12 07:27:46,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:46,742 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1211 transitions. [2022-07-12 07:27:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:27:46,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:46,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:46,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-12 07:27:46,744 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)] === [2022-07-12 07:27:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1487727486, now seen corresponding path program 1 times [2022-07-12 07:27:46,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:46,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550396579] [2022-07-12 07:27:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:46,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:46,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:46,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550396579] [2022-07-12 07:27:46,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550396579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:46,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:46,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:27:46,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630195493] [2022-07-12 07:27:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:46,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:27:46,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:46,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:27:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:27:46,891 INFO L87 Difference]: Start difference. First operand 901 states and 1211 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:49,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:49,841 INFO L93 Difference]: Finished difference Result 2504 states and 3514 transitions. [2022-07-12 07:27:49,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:27:49,842 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:27:49,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:49,845 INFO L225 Difference]: With dead ends: 2504 [2022-07-12 07:27:49,845 INFO L226 Difference]: Without dead ends: 2350 [2022-07-12 07:27:49,845 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 [2022-07-12 07:27:49,846 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 7135 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 997 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7135 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 3637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 997 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:49,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7135 Valid, 3100 Invalid, 3637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [997 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:27:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2022-07-12 07:27:50,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 909. [2022-07-12 07:27:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3742953776775648) internal successors, (1219), 908 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) [2022-07-12 07:27:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1219 transitions. [2022-07-12 07:27:50,062 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1219 transitions. Word has length 97 [2022-07-12 07:27:50,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:50,062 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1219 transitions. [2022-07-12 07:27:50,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:50,063 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1219 transitions. [2022-07-12 07:27:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:27:50,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:50,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:50,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-12 07:27:50,064 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:50,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:50,064 INFO L85 PathProgramCache]: Analyzing trace with hash -2052103235, now seen corresponding path program 1 times [2022-07-12 07:27:50,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:50,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603623736] [2022-07-12 07:27:50,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:50,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:50,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:50,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603623736] [2022-07-12 07:27:50,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603623736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:50,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:50,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:50,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187012807] [2022-07-12 07:27:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:50,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:50,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:50,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:50,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:50,142 INFO L87 Difference]: Start difference. First operand 909 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:51,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:51,922 INFO L93 Difference]: Finished difference Result 1776 states and 2439 transitions. [2022-07-12 07:27:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:51,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:27:51,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:51,925 INFO L225 Difference]: With dead ends: 1776 [2022-07-12 07:27:51,925 INFO L226 Difference]: Without dead ends: 1622 [2022-07-12 07:27:51,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:51,926 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 3784 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3784 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:51,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3784 Valid, 2861 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:51,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-07-12 07:27:52,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 909. [2022-07-12 07:27:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3720405862457723) internal successors, (1217), 908 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) [2022-07-12 07:27:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1217 transitions. [2022-07-12 07:27:52,154 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1217 transitions. Word has length 97 [2022-07-12 07:27:52,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:52,154 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1217 transitions. [2022-07-12 07:27:52,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1217 transitions. [2022-07-12 07:27:52,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:27:52,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:52,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:52,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-12 07:27:52,156 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:52,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:52,156 INFO L85 PathProgramCache]: Analyzing trace with hash -139906133, now seen corresponding path program 1 times [2022-07-12 07:27:52,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:52,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70527698] [2022-07-12 07:27:52,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:52,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:52,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:52,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70527698] [2022-07-12 07:27:52,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70527698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:52,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:52,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:27:52,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075178273] [2022-07-12 07:27:52,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:52,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:27:52,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:52,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:27:52,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:27:52,289 INFO L87 Difference]: Start difference. First operand 909 states and 1217 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:55,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:55,306 INFO L93 Difference]: Finished difference Result 2752 states and 3883 transitions. [2022-07-12 07:27:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:27:55,306 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:27:55,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:55,309 INFO L225 Difference]: With dead ends: 2752 [2022-07-12 07:27:55,309 INFO L226 Difference]: Without dead ends: 2582 [2022-07-12 07:27:55,310 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 [2022-07-12 07:27:55,310 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 5754 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 3228 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5754 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 3228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:55,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5754 Valid, 4051 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 3228 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:27:55,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2022-07-12 07:27:55,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 917. [2022-07-12 07:27:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3687150837988826) internal successors, (1225), 916 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) [2022-07-12 07:27:55,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1225 transitions. [2022-07-12 07:27:55,540 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1225 transitions. Word has length 97 [2022-07-12 07:27:55,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:55,540 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1225 transitions. [2022-07-12 07:27:55,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:55,541 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1225 transitions. [2022-07-12 07:27:55,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:27:55,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:55,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:55,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-12 07:27:55,542 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)] === [2022-07-12 07:27:55,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:55,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1430230902, now seen corresponding path program 1 times [2022-07-12 07:27:55,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:55,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796797475] [2022-07-12 07:27:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:55,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:55,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:55,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796797475] [2022-07-12 07:27:55,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796797475] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:55,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:55,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:55,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235600686] [2022-07-12 07:27:55,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:55,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:55,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:55,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:55,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:55,624 INFO L87 Difference]: Start difference. First operand 917 states and 1225 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:57,493 INFO L93 Difference]: Finished difference Result 1784 states and 2445 transitions. [2022-07-12 07:27:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:57,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:27:57,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:57,495 INFO L225 Difference]: With dead ends: 1784 [2022-07-12 07:27:57,495 INFO L226 Difference]: Without dead ends: 1630 [2022-07-12 07:27:57,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:57,497 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 3780 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3780 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:57,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3780 Valid, 2861 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-07-12 07:27:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 917. [2022-07-12 07:27:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3664804469273744) internal successors, (1223), 916 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) [2022-07-12 07:27:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1223 transitions. [2022-07-12 07:27:57,734 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1223 transitions. Word has length 97 [2022-07-12 07:27:57,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:57,734 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1223 transitions. [2022-07-12 07:27:57,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1223 transitions. [2022-07-12 07:27:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:27:57,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:57,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:57,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-12 07:27:57,736 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)] === [2022-07-12 07:27:57,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:57,736 INFO L85 PathProgramCache]: Analyzing trace with hash -952539292, now seen corresponding path program 1 times [2022-07-12 07:27:57,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:57,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728194839] [2022-07-12 07:27:57,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:57,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:57,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:57,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728194839] [2022-07-12 07:27:57,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728194839] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:57,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:57,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:27:57,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511411046] [2022-07-12 07:27:57,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:57,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:27:57,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:57,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:27:57,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:27:57,821 INFO L87 Difference]: Start difference. First operand 917 states and 1223 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:59,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:27:59,494 INFO L93 Difference]: Finished difference Result 1848 states and 2545 transitions. [2022-07-12 07:27:59,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:27:59,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:27:59,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:27:59,496 INFO L225 Difference]: With dead ends: 1848 [2022-07-12 07:27:59,496 INFO L226 Difference]: Without dead ends: 1678 [2022-07-12 07:27:59,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:27:59,497 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 3700 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:27:59,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3700 Valid, 3367 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:27:59,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-07-12 07:27:59,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 917. [2022-07-12 07:27:59,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3642458100558659) internal successors, (1221), 916 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) [2022-07-12 07:27:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1221 transitions. [2022-07-12 07:27:59,725 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1221 transitions. Word has length 97 [2022-07-12 07:27:59,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:27:59,725 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1221 transitions. [2022-07-12 07:27:59,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:27:59,725 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1221 transitions. [2022-07-12 07:27:59,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:27:59,726 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:27:59,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:27:59,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-12 07:27:59,726 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:27:59,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:27:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash -557790964, now seen corresponding path program 1 times [2022-07-12 07:27:59,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:27:59,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353047367] [2022-07-12 07:27:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:27:59,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:27:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:27:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:27:59,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:27:59,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353047367] [2022-07-12 07:27:59,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353047367] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:27:59,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:27:59,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:27:59,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524368661] [2022-07-12 07:27:59,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:27:59,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:27:59,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:27:59,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:27:59,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:27:59,862 INFO L87 Difference]: Start difference. First operand 917 states and 1221 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:03,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:03,795 INFO L93 Difference]: Finished difference Result 3024 states and 4265 transitions. [2022-07-12 07:28:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:03,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:03,798 INFO L225 Difference]: With dead ends: 3024 [2022-07-12 07:28:03,798 INFO L226 Difference]: Without dead ends: 2814 [2022-07-12 07:28:03,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:28:03,799 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 5767 mSDsluCounter, 3660 mSDsCounter, 0 mSdLazyCounter, 3508 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5767 SdHoareTripleChecker+Valid, 4517 SdHoareTripleChecker+Invalid, 4021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 3508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:03,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5767 Valid, 4517 Invalid, 4021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 3508 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 07:28:03,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2022-07-12 07:28:04,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 925. [2022-07-12 07:28:04,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3610188261351053) internal successors, (1229), 924 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:04,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1229 transitions. [2022-07-12 07:28:04,047 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1229 transitions. Word has length 97 [2022-07-12 07:28:04,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:04,047 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1229 transitions. [2022-07-12 07:28:04,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:04,048 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1229 transitions. [2022-07-12 07:28:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:04,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:04,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:04,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-12 07:28:04,049 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:04,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash 934856710, now seen corresponding path program 1 times [2022-07-12 07:28:04,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:04,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136878058] [2022-07-12 07:28:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:04,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:04,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:04,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:04,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136878058] [2022-07-12 07:28:04,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136878058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:04,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:04,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:04,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043963517] [2022-07-12 07:28:04,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:04,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:04,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:04,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:04,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:04,144 INFO L87 Difference]: Start difference. First operand 925 states and 1229 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:05,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:05,904 INFO L93 Difference]: Finished difference Result 1784 states and 2440 transitions. [2022-07-12 07:28:05,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:05,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:05,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:05,906 INFO L225 Difference]: With dead ends: 1784 [2022-07-12 07:28:05,906 INFO L226 Difference]: Without dead ends: 1638 [2022-07-12 07:28:05,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:28:05,907 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3650 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 2450 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3650 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:05,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3650 Valid, 3132 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2450 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:28:05,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-12 07:28:06,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 925. [2022-07-12 07:28:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3588039867109634) internal successors, (1227), 924 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) [2022-07-12 07:28:06,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1227 transitions. [2022-07-12 07:28:06,164 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1227 transitions. Word has length 97 [2022-07-12 07:28:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:06,164 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1227 transitions. [2022-07-12 07:28:06,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1227 transitions. [2022-07-12 07:28:06,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:06,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:06,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:06,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-12 07:28:06,166 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)] === [2022-07-12 07:28:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:06,166 INFO L85 PathProgramCache]: Analyzing trace with hash -965955861, now seen corresponding path program 1 times [2022-07-12 07:28:06,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:06,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420432522] [2022-07-12 07:28:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:06,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:06,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:06,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420432522] [2022-07-12 07:28:06,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420432522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:06,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:06,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:06,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112381811] [2022-07-12 07:28:06,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:06,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:06,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:06,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:06,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:06,300 INFO L87 Difference]: Start difference. First operand 925 states and 1227 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:09,466 INFO L93 Difference]: Finished difference Result 2512 states and 3510 transitions. [2022-07-12 07:28:09,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:09,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:09,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:09,469 INFO L225 Difference]: With dead ends: 2512 [2022-07-12 07:28:09,469 INFO L226 Difference]: Without dead ends: 2362 [2022-07-12 07:28:09,469 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 [2022-07-12 07:28:09,470 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 5929 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 825 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 3060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 825 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:09,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5929 Valid, 2729 Invalid, 3060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [825 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:28:09,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-07-12 07:28:09,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 933. [2022-07-12 07:28:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 911 states have (on average 1.3556531284302964) internal successors, (1235), 932 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) [2022-07-12 07:28:09,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1235 transitions. [2022-07-12 07:28:09,737 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1235 transitions. Word has length 97 [2022-07-12 07:28:09,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:09,738 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1235 transitions. [2022-07-12 07:28:09,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1235 transitions. [2022-07-12 07:28:09,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:09,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:09,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:09,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-12 07:28:09,739 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)] === [2022-07-12 07:28:09,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:09,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1614649937, now seen corresponding path program 1 times [2022-07-12 07:28:09,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:09,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146409708] [2022-07-12 07:28:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:09,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:09,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:09,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:09,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146409708] [2022-07-12 07:28:09,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146409708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:09,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:09,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:09,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711046389] [2022-07-12 07:28:09,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:09,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:09,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:09,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:09,816 INFO L87 Difference]: Start difference. First operand 933 states and 1235 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:11,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:11,494 INFO L93 Difference]: Finished difference Result 1788 states and 2440 transitions. [2022-07-12 07:28:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:11,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:11,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:11,496 INFO L225 Difference]: With dead ends: 1788 [2022-07-12 07:28:11,496 INFO L226 Difference]: Without dead ends: 1638 [2022-07-12 07:28:11,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:28:11,497 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 3747 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3747 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:11,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3747 Valid, 2913 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2251 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:28:11,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-12 07:28:11,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 933. [2022-07-12 07:28:11,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 911 states have (on average 1.353457738748628) internal successors, (1233), 932 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) [2022-07-12 07:28:11,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1233 transitions. [2022-07-12 07:28:11,746 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1233 transitions. Word has length 97 [2022-07-12 07:28:11,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:11,746 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1233 transitions. [2022-07-12 07:28:11,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1233 transitions. [2022-07-12 07:28:11,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:11,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:11,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:11,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-12 07:28:11,748 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:11,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:11,748 INFO L85 PathProgramCache]: Analyzing trace with hash 59659843, now seen corresponding path program 1 times [2022-07-12 07:28:11,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:11,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012694777] [2022-07-12 07:28:11,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:11,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:11,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:11,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:11,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012694777] [2022-07-12 07:28:11,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012694777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:11,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:11,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:11,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361208962] [2022-07-12 07:28:11,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:11,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:11,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:11,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:11,865 INFO L87 Difference]: Start difference. First operand 933 states and 1233 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:15,433 INFO L93 Difference]: Finished difference Result 2756 states and 3869 transitions. [2022-07-12 07:28:15,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:15,434 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:15,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:15,436 INFO L225 Difference]: With dead ends: 2756 [2022-07-12 07:28:15,436 INFO L226 Difference]: Without dead ends: 2592 [2022-07-12 07:28:15,437 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 [2022-07-12 07:28:15,437 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 6861 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 3164 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6861 SdHoareTripleChecker+Valid, 4041 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 3164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:15,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6861 Valid, 4041 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 3164 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 07:28:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2022-07-12 07:28:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 941. [2022-07-12 07:28:15,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 919 states have (on average 1.3503808487486397) internal successors, (1241), 940 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) [2022-07-12 07:28:15,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1241 transitions. [2022-07-12 07:28:15,708 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1241 transitions. Word has length 97 [2022-07-12 07:28:15,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:15,708 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1241 transitions. [2022-07-12 07:28:15,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:15,708 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1241 transitions. [2022-07-12 07:28:15,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:15,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:15,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:15,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-12 07:28:15,710 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:15,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:15,710 INFO L85 PathProgramCache]: Analyzing trace with hash 610975350, now seen corresponding path program 1 times [2022-07-12 07:28:15,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:15,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919412644] [2022-07-12 07:28:15,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:15,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:15,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:15,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919412644] [2022-07-12 07:28:15,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919412644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:15,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:15,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:15,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763918821] [2022-07-12 07:28:15,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:15,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:15,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:15,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:15,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:15,820 INFO L87 Difference]: Start difference. First operand 941 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:17,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:17,600 INFO L93 Difference]: Finished difference Result 1651 states and 2226 transitions. [2022-07-12 07:28:17,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:17,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:17,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:17,602 INFO L225 Difference]: With dead ends: 1651 [2022-07-12 07:28:17,602 INFO L226 Difference]: Without dead ends: 1646 [2022-07-12 07:28:17,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:28:17,603 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 3745 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3745 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:17,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3745 Valid, 2910 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:28:17,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-12 07:28:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 941. [2022-07-12 07:28:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 919 states have (on average 1.3482045701849836) internal successors, (1239), 940 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) [2022-07-12 07:28:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1239 transitions. [2022-07-12 07:28:17,884 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1239 transitions. Word has length 97 [2022-07-12 07:28:17,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:17,884 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1239 transitions. [2022-07-12 07:28:17,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:17,884 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1239 transitions. [2022-07-12 07:28:17,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:17,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:17,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:17,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-12 07:28:17,886 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:17,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:17,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1771794844, now seen corresponding path program 1 times [2022-07-12 07:28:17,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:17,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757753933] [2022-07-12 07:28:17,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:17,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:18,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:18,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:18,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757753933] [2022-07-12 07:28:18,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757753933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:18,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:18,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:18,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231844984] [2022-07-12 07:28:18,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:18,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:18,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:18,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:18,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:18,036 INFO L87 Difference]: Start difference. First operand 941 states and 1239 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:21,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:21,381 INFO L93 Difference]: Finished difference Result 2608 states and 3637 transitions. [2022-07-12 07:28:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:21,381 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:21,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:21,384 INFO L225 Difference]: With dead ends: 2608 [2022-07-12 07:28:21,384 INFO L226 Difference]: Without dead ends: 2591 [2022-07-12 07:28:21,384 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 [2022-07-12 07:28:21,385 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 7016 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7016 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:21,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7016 Valid, 3294 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:28:21,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-07-12 07:28:21,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 949. [2022-07-12 07:28:21,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 927 states have (on average 1.3451995685005393) internal successors, (1247), 948 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) [2022-07-12 07:28:21,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1247 transitions. [2022-07-12 07:28:21,660 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1247 transitions. Word has length 97 [2022-07-12 07:28:21,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:21,660 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1247 transitions. [2022-07-12 07:28:21,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:21,661 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1247 transitions. [2022-07-12 07:28:21,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:21,662 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:21,662 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] [2022-07-12 07:28:21,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-12 07:28:21,662 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:21,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:21,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1121558854, now seen corresponding path program 1 times [2022-07-12 07:28:21,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:21,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197666674] [2022-07-12 07:28:21,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:21,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:21,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:21,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197666674] [2022-07-12 07:28:21,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197666674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:21,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:21,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:21,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461995346] [2022-07-12 07:28:21,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:21,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:21,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:21,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:21,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:21,760 INFO L87 Difference]: Start difference. First operand 949 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:23,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:23,792 INFO L93 Difference]: Finished difference Result 1804 states and 2452 transitions. [2022-07-12 07:28:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:23,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:23,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:23,795 INFO L225 Difference]: With dead ends: 1804 [2022-07-12 07:28:23,795 INFO L226 Difference]: Without dead ends: 1654 [2022-07-12 07:28:23,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:28:23,796 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 3739 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3739 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:23,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3739 Valid, 2913 Invalid, 2427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:28:23,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-07-12 07:28:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 949. [2022-07-12 07:28:24,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 927 states have (on average 1.343042071197411) internal successors, (1245), 948 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) [2022-07-12 07:28:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1245 transitions. [2022-07-12 07:28:24,097 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1245 transitions. Word has length 97 [2022-07-12 07:28:24,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:24,097 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1245 transitions. [2022-07-12 07:28:24,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:24,097 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1245 transitions. [2022-07-12 07:28:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:24,098 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:24,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:24,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-12 07:28:24,099 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:24,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:24,100 INFO L85 PathProgramCache]: Analyzing trace with hash -144161225, now seen corresponding path program 1 times [2022-07-12 07:28:24,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:24,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013723329] [2022-07-12 07:28:24,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:24,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:24,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:24,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:24,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013723329] [2022-07-12 07:28:24,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013723329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:24,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:24,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:24,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735614025] [2022-07-12 07:28:24,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:24,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:24,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:24,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:24,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:24,231 INFO L87 Difference]: Start difference. First operand 949 states and 1245 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:27,717 INFO L93 Difference]: Finished difference Result 2384 states and 3298 transitions. [2022-07-12 07:28:27,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:27,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:27,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:27,720 INFO L225 Difference]: With dead ends: 2384 [2022-07-12 07:28:27,720 INFO L226 Difference]: Without dead ends: 2379 [2022-07-12 07:28:27,720 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 [2022-07-12 07:28:27,720 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 7084 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 988 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7084 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 3202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:27,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7084 Valid, 2726 Invalid, 3202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [988 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:28:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2022-07-12 07:28:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 957. [2022-07-12 07:28:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 935 states have (on average 1.3401069518716577) internal successors, (1253), 956 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) [2022-07-12 07:28:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1253 transitions. [2022-07-12 07:28:28,017 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1253 transitions. Word has length 97 [2022-07-12 07:28:28,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:28,017 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1253 transitions. [2022-07-12 07:28:28,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:28,017 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1253 transitions. [2022-07-12 07:28:28,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:28,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:28,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:28,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-12 07:28:28,019 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:28,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:28,019 INFO L85 PathProgramCache]: Analyzing trace with hash 733511318, now seen corresponding path program 1 times [2022-07-12 07:28:28,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:28,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937959761] [2022-07-12 07:28:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:28,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:28,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:28,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937959761] [2022-07-12 07:28:28,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937959761] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:28,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:28,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:28,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871025119] [2022-07-12 07:28:28,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:28,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:28,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:28,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:28,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:28,144 INFO L87 Difference]: Start difference. First operand 957 states and 1253 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:31,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:31,772 INFO L93 Difference]: Finished difference Result 2752 states and 3853 transitions. [2022-07-12 07:28:31,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:31,773 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:31,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:31,776 INFO L225 Difference]: With dead ends: 2752 [2022-07-12 07:28:31,776 INFO L226 Difference]: Without dead ends: 2594 [2022-07-12 07:28:31,776 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 [2022-07-12 07:28:31,776 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 7979 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 3479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:31,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 3527 Invalid, 3479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:28:31,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2022-07-12 07:28:32,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 961. [2022-07-12 07:28:32,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 939 states have (on average 1.3386581469648562) internal successors, (1257), 960 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1257 transitions. [2022-07-12 07:28:32,083 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1257 transitions. Word has length 97 [2022-07-12 07:28:32,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:32,084 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1257 transitions. [2022-07-12 07:28:32,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1257 transitions. [2022-07-12 07:28:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:32,085 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:32,085 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, 1] [2022-07-12 07:28:32,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-12 07:28:32,085 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)] === [2022-07-12 07:28:32,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:32,085 INFO L85 PathProgramCache]: Analyzing trace with hash -941278081, now seen corresponding path program 1 times [2022-07-12 07:28:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:32,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952314451] [2022-07-12 07:28:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:32,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:32,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952314451] [2022-07-12 07:28:32,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952314451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:32,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:32,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:32,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141231774] [2022-07-12 07:28:32,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:32,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:32,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:32,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:32,160 INFO L87 Difference]: Start difference. First operand 961 states and 1257 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:34,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:34,325 INFO L93 Difference]: Finished difference Result 1806 states and 2450 transitions. [2022-07-12 07:28:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:34,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:34,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:34,328 INFO L225 Difference]: With dead ends: 1806 [2022-07-12 07:28:34,328 INFO L226 Difference]: Without dead ends: 1658 [2022-07-12 07:28:34,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:28:34,329 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 3642 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3642 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:34,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3642 Valid, 3115 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:28:34,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-07-12 07:28:34,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 961. [2022-07-12 07:28:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 939 states have (on average 1.3375931842385516) internal successors, (1256), 960 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) [2022-07-12 07:28:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1256 transitions. [2022-07-12 07:28:34,636 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1256 transitions. Word has length 97 [2022-07-12 07:28:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:34,636 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1256 transitions. [2022-07-12 07:28:34,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1256 transitions. [2022-07-12 07:28:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:34,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:34,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:34,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-12 07:28:34,637 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:34,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:34,638 INFO L85 PathProgramCache]: Analyzing trace with hash -292584005, now seen corresponding path program 1 times [2022-07-12 07:28:34,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:34,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675923253] [2022-07-12 07:28:34,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:34,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:34,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:34,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:34,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675923253] [2022-07-12 07:28:34,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675923253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:34,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:34,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:34,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217254811] [2022-07-12 07:28:34,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:34,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:34,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:34,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:34,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:34,779 INFO L87 Difference]: Start difference. First operand 961 states and 1256 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:38,035 INFO L93 Difference]: Finished difference Result 2528 states and 3515 transitions. [2022-07-12 07:28:38,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:38,036 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:38,038 INFO L225 Difference]: With dead ends: 2528 [2022-07-12 07:28:38,038 INFO L226 Difference]: Without dead ends: 2380 [2022-07-12 07:28:38,039 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 [2022-07-12 07:28:38,039 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 7082 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7082 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 3203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:38,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7082 Valid, 2707 Invalid, 3203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:28:38,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2022-07-12 07:28:38,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 965. [2022-07-12 07:28:38,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 943 states have (on average 1.3361611876988335) internal successors, (1260), 964 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1260 transitions. [2022-07-12 07:28:38,346 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1260 transitions. Word has length 97 [2022-07-12 07:28:38,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:38,346 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1260 transitions. [2022-07-12 07:28:38,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1260 transitions. [2022-07-12 07:28:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:38,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:38,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:38,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-12 07:28:38,347 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:38,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:38,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1097943369, now seen corresponding path program 1 times [2022-07-12 07:28:38,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:38,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637710497] [2022-07-12 07:28:38,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:38,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:38,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:38,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637710497] [2022-07-12 07:28:38,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637710497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:38,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:38,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:38,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607871954] [2022-07-12 07:28:38,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:38,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:38,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:38,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:38,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:38,467 INFO L87 Difference]: Start difference. First operand 965 states and 1260 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:42,367 INFO L93 Difference]: Finished difference Result 2766 states and 3864 transitions. [2022-07-12 07:28:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:42,367 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:42,370 INFO L225 Difference]: With dead ends: 2766 [2022-07-12 07:28:42,370 INFO L226 Difference]: Without dead ends: 2603 [2022-07-12 07:28:42,370 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 [2022-07-12 07:28:42,371 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 7136 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7136 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 745 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:42,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7136 Valid, 3222 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [745 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:28:42,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2022-07-12 07:28:42,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 969. [2022-07-12 07:28:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.334741288278775) internal successors, (1264), 968 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) [2022-07-12 07:28:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1264 transitions. [2022-07-12 07:28:42,693 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1264 transitions. Word has length 97 [2022-07-12 07:28:42,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:42,693 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1264 transitions. [2022-07-12 07:28:42,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1264 transitions. [2022-07-12 07:28:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:42,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:42,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:42,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-12 07:28:42,695 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)] === [2022-07-12 07:28:42,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1794930710, now seen corresponding path program 1 times [2022-07-12 07:28:42,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:42,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702083157] [2022-07-12 07:28:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:42,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:42,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:42,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702083157] [2022-07-12 07:28:42,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702083157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:42,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:42,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:42,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030497269] [2022-07-12 07:28:42,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:42,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:42,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:42,771 INFO L87 Difference]: Start difference. First operand 969 states and 1264 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:44,963 INFO L93 Difference]: Finished difference Result 1810 states and 2452 transitions. [2022-07-12 07:28:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:44,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:44,966 INFO L225 Difference]: With dead ends: 1810 [2022-07-12 07:28:44,966 INFO L226 Difference]: Without dead ends: 1662 [2022-07-12 07:28:44,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:28:44,967 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 3644 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3644 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:44,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3644 Valid, 3095 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:28:44,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-12 07:28:45,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 969. [2022-07-12 07:28:45,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.3336853220696938) internal successors, (1263), 968 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:45,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1263 transitions. [2022-07-12 07:28:45,281 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1263 transitions. Word has length 97 [2022-07-12 07:28:45,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:45,281 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1263 transitions. [2022-07-12 07:28:45,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1263 transitions. [2022-07-12 07:28:45,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:45,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:45,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:45,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-12 07:28:45,282 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:28:45,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:45,283 INFO L85 PathProgramCache]: Analyzing trace with hash 529690250, now seen corresponding path program 1 times [2022-07-12 07:28:45,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:45,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666111816] [2022-07-12 07:28:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:45,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:45,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:45,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666111816] [2022-07-12 07:28:45,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666111816] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:45,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:45,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:45,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176845976] [2022-07-12 07:28:45,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:45,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:45,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:45,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:45,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:45,412 INFO L87 Difference]: Start difference. First operand 969 states and 1263 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:48,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:48,949 INFO L93 Difference]: Finished difference Result 2538 states and 3523 transitions. [2022-07-12 07:28:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:48,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:48,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:48,952 INFO L225 Difference]: With dead ends: 2538 [2022-07-12 07:28:48,952 INFO L226 Difference]: Without dead ends: 2387 [2022-07-12 07:28:48,953 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 [2022-07-12 07:28:48,953 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 7057 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 996 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7057 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 3184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 996 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:48,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7057 Valid, 2715 Invalid, 3184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [996 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:28:48,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2022-07-12 07:28:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 973. [2022-07-12 07:28:49,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 951 states have (on average 1.3322818086225026) internal successors, (1267), 972 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1267 transitions. [2022-07-12 07:28:49,311 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1267 transitions. Word has length 97 [2022-07-12 07:28:49,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:49,311 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1267 transitions. [2022-07-12 07:28:49,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:49,311 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1267 transitions. [2022-07-12 07:28:49,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:49,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:49,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:49,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-12 07:28:49,313 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)] === [2022-07-12 07:28:49,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:49,313 INFO L85 PathProgramCache]: Analyzing trace with hash -340300117, now seen corresponding path program 1 times [2022-07-12 07:28:49,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:49,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159962918] [2022-07-12 07:28:49,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:49,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:49,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:49,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159962918] [2022-07-12 07:28:49,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159962918] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:49,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:49,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:49,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078240569] [2022-07-12 07:28:49,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:49,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:49,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:49,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:49,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:49,435 INFO L87 Difference]: Start difference. First operand 973 states and 1267 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:53,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:53,427 INFO L93 Difference]: Finished difference Result 2752 states and 3848 transitions. [2022-07-12 07:28:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:28:53,428 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:53,430 INFO L225 Difference]: With dead ends: 2752 [2022-07-12 07:28:53,430 INFO L226 Difference]: Without dead ends: 2598 [2022-07-12 07:28:53,431 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 [2022-07-12 07:28:53,431 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 8233 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8233 SdHoareTripleChecker+Valid, 3006 SdHoareTripleChecker+Invalid, 3126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:53,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8233 Valid, 3006 Invalid, 3126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:28:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2022-07-12 07:28:53,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 977. [2022-07-12 07:28:53,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 955 states have (on average 1.330890052356021) internal successors, (1271), 976 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:53,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1271 transitions. [2022-07-12 07:28:53,790 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1271 transitions. Word has length 97 [2022-07-12 07:28:53,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:53,790 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1271 transitions. [2022-07-12 07:28:53,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:53,790 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1271 transitions. [2022-07-12 07:28:53,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:53,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:53,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:53,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-12 07:28:53,792 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)] === [2022-07-12 07:28:53,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:53,792 INFO L85 PathProgramCache]: Analyzing trace with hash 67880146, now seen corresponding path program 1 times [2022-07-12 07:28:53,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:53,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354269432] [2022-07-12 07:28:53,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:53,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:53,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:53,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:53,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354269432] [2022-07-12 07:28:53,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354269432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:53,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:53,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:28:53,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122160877] [2022-07-12 07:28:53,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:53,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:28:53,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:53,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:28:53,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:28:53,874 INFO L87 Difference]: Start difference. First operand 977 states and 1271 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:55,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:28:55,795 INFO L93 Difference]: Finished difference Result 1812 states and 2452 transitions. [2022-07-12 07:28:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:28:55,795 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:28:55,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:28:55,797 INFO L225 Difference]: With dead ends: 1812 [2022-07-12 07:28:55,797 INFO L226 Difference]: Without dead ends: 1666 [2022-07-12 07:28:55,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:28:55,797 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 3628 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:28:55,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3628 Valid, 3144 Invalid, 2560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:28:55,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-12 07:28:56,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 977. [2022-07-12 07:28:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 955 states have (on average 1.3298429319371727) internal successors, (1270), 976 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1270 transitions. [2022-07-12 07:28:56,142 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1270 transitions. Word has length 97 [2022-07-12 07:28:56,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:28:56,142 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1270 transitions. [2022-07-12 07:28:56,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:28:56,143 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1270 transitions. [2022-07-12 07:28:56,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:28:56,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:28:56,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:28:56,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-12 07:28:56,144 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)] === [2022-07-12 07:28:56,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:28:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2055269860, now seen corresponding path program 1 times [2022-07-12 07:28:56,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:28:56,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923530925] [2022-07-12 07:28:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:28:56,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:28:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:28:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:28:56,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:28:56,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923530925] [2022-07-12 07:28:56,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923530925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:28:56,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:28:56,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:28:56,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340508719] [2022-07-12 07:28:56,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:28:56,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:28:56,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:28:56,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:28:56,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:28:56,282 INFO L87 Difference]: Start difference. First operand 977 states and 1270 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:00,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:00,058 INFO L93 Difference]: Finished difference Result 2532 states and 3515 transitions. [2022-07-12 07:29:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:29:00,059 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:29:00,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:00,061 INFO L225 Difference]: With dead ends: 2532 [2022-07-12 07:29:00,061 INFO L226 Difference]: Without dead ends: 2386 [2022-07-12 07:29:00,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:29:00,062 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 5896 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5896 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 831 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:00,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5896 Valid, 2691 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [831 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 07:29:00,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2022-07-12 07:29:00,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 981. [2022-07-12 07:29:00,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3284671532846715) internal successors, (1274), 980 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:00,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1274 transitions. [2022-07-12 07:29:00,421 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1274 transitions. Word has length 97 [2022-07-12 07:29:00,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:00,421 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1274 transitions. [2022-07-12 07:29:00,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1274 transitions. [2022-07-12 07:29:00,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:29:00,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:00,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:00,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-12 07:29:00,423 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:00,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:00,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1434790026, now seen corresponding path program 1 times [2022-07-12 07:29:00,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:00,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790420092] [2022-07-12 07:29:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:00,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:00,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:00,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790420092] [2022-07-12 07:29:00,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790420092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:00,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:00,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:00,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449000167] [2022-07-12 07:29:00,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:00,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:00,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:00,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:00,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:00,500 INFO L87 Difference]: Start difference. First operand 981 states and 1274 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:02,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:02,559 INFO L93 Difference]: Finished difference Result 1814 states and 2452 transitions. [2022-07-12 07:29:02,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:02,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:29:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:02,561 INFO L225 Difference]: With dead ends: 1814 [2022-07-12 07:29:02,561 INFO L226 Difference]: Without dead ends: 1666 [2022-07-12 07:29:02,561 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 [2022-07-12 07:29:02,562 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 3734 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3734 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 2371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:02,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3734 Valid, 2881 Invalid, 2371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-12 07:29:02,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 981. [2022-07-12 07:29:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3274244004171012) internal successors, (1273), 980 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:02,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1273 transitions. [2022-07-12 07:29:02,914 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1273 transitions. Word has length 97 [2022-07-12 07:29:02,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:02,914 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1273 transitions. [2022-07-12 07:29:02,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:02,915 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1273 transitions. [2022-07-12 07:29:02,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:29:02,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:02,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:02,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-12 07:29:02,916 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:02,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:02,917 INFO L85 PathProgramCache]: Analyzing trace with hash 240215847, now seen corresponding path program 1 times [2022-07-12 07:29:02,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:02,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794388941] [2022-07-12 07:29:02,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:02,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:03,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:03,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794388941] [2022-07-12 07:29:03,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794388941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:03,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:03,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:29:03,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70000790] [2022-07-12 07:29:03,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:03,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:29:03,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:03,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:29:03,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:29:03,039 INFO L87 Difference]: Start difference. First operand 981 states and 1273 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:07,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:07,120 INFO L93 Difference]: Finished difference Result 2764 states and 3853 transitions. [2022-07-12 07:29:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:29:07,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:29:07,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:07,123 INFO L225 Difference]: With dead ends: 2764 [2022-07-12 07:29:07,123 INFO L226 Difference]: Without dead ends: 2606 [2022-07-12 07:29:07,124 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 [2022-07-12 07:29:07,124 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 6002 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6002 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 3359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:07,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6002 Valid, 3484 Invalid, 3359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 07:29:07,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-07-12 07:29:07,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 985. [2022-07-12 07:29:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 963 states have (on average 1.3260643821391485) internal successors, (1277), 984 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1277 transitions. [2022-07-12 07:29:07,506 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1277 transitions. Word has length 97 [2022-07-12 07:29:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:07,507 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1277 transitions. [2022-07-12 07:29:07,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1277 transitions. [2022-07-12 07:29:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:29:07,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:07,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:07,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-12 07:29:07,508 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)] === [2022-07-12 07:29:07,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:07,509 INFO L85 PathProgramCache]: Analyzing trace with hash -786095950, now seen corresponding path program 1 times [2022-07-12 07:29:07,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:07,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835940258] [2022-07-12 07:29:07,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:07,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:07,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:07,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:07,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835940258] [2022-07-12 07:29:07,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835940258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:07,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:07,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:29:07,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297955838] [2022-07-12 07:29:07,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:07,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:29:07,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:07,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:29:07,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:29:07,641 INFO L87 Difference]: Start difference. First operand 985 states and 1277 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:12,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:12,080 INFO L93 Difference]: Finished difference Result 2540 states and 3521 transitions. [2022-07-12 07:29:12,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:29:12,080 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:29:12,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:12,083 INFO L225 Difference]: With dead ends: 2540 [2022-07-12 07:29:12,083 INFO L226 Difference]: Without dead ends: 2392 [2022-07-12 07:29:12,083 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 [2022-07-12 07:29:12,083 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 7012 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7012 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 3666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:12,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7012 Valid, 3277 Invalid, 3666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 07:29:12,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2022-07-12 07:29:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 989. [2022-07-12 07:29:12,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 967 states have (on average 1.3247156153050672) internal successors, (1281), 988 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1281 transitions. [2022-07-12 07:29:12,447 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1281 transitions. Word has length 97 [2022-07-12 07:29:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:12,447 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1281 transitions. [2022-07-12 07:29:12,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1281 transitions. [2022-07-12 07:29:12,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:29:12,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:12,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:12,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-12 07:29:12,448 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)] === [2022-07-12 07:29:12,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:12,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1852246538, now seen corresponding path program 1 times [2022-07-12 07:29:12,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:12,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44050845] [2022-07-12 07:29:12,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:12,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:12,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:12,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44050845] [2022-07-12 07:29:12,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44050845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:12,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:12,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:12,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119799548] [2022-07-12 07:29:12,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:12,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:12,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:12,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:12,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:12,536 INFO L87 Difference]: Start difference. First operand 989 states and 1281 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:14,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:14,975 INFO L93 Difference]: Finished difference Result 1816 states and 2452 transitions. [2022-07-12 07:29:14,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:14,976 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:29:14,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:14,978 INFO L225 Difference]: With dead ends: 1816 [2022-07-12 07:29:14,978 INFO L226 Difference]: Without dead ends: 1670 [2022-07-12 07:29:14,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:14,979 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 3731 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2177 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:14,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3731 Valid, 2874 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2177 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:29:14,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-07-12 07:29:15,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 989. [2022-07-12 07:29:15,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 967 states have (on average 1.3236814891416753) internal successors, (1280), 988 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1280 transitions. [2022-07-12 07:29:15,376 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1280 transitions. Word has length 97 [2022-07-12 07:29:15,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:15,376 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1280 transitions. [2022-07-12 07:29:15,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:15,376 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1280 transitions. [2022-07-12 07:29:15,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:15,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:15,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:15,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-12 07:29:15,378 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:15,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:15,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1391256008, now seen corresponding path program 1 times [2022-07-12 07:29:15,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:15,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264455211] [2022-07-12 07:29:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:15,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:15,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:15,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264455211] [2022-07-12 07:29:15,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264455211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:15,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:15,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:15,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745219347] [2022-07-12 07:29:15,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:15,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:15,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:15,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:15,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:15,466 INFO L87 Difference]: Start difference. First operand 989 states and 1280 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:17,684 INFO L93 Difference]: Finished difference Result 1824 states and 2460 transitions. [2022-07-12 07:29:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:17,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:17,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:17,687 INFO L225 Difference]: With dead ends: 1824 [2022-07-12 07:29:17,687 INFO L226 Difference]: Without dead ends: 1670 [2022-07-12 07:29:17,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:17,688 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 2236 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:17,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2236 Valid, 2430 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-07-12 07:29:18,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 981. [2022-07-12 07:29:18,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.32429614181439) internal successors, (1270), 980 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:18,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1270 transitions. [2022-07-12 07:29:18,061 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1270 transitions. Word has length 98 [2022-07-12 07:29:18,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:18,061 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1270 transitions. [2022-07-12 07:29:18,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1270 transitions. [2022-07-12 07:29:18,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:18,063 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:18,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:18,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-12 07:29:18,063 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:18,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:18,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2004213255, now seen corresponding path program 1 times [2022-07-12 07:29:18,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:18,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154552615] [2022-07-12 07:29:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:18,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:18,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:18,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:18,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154552615] [2022-07-12 07:29:18,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154552615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:18,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:18,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:18,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339117563] [2022-07-12 07:29:18,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:18,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:18,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:18,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:18,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:18,129 INFO L87 Difference]: Start difference. First operand 981 states and 1270 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:20,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:20,115 INFO L93 Difference]: Finished difference Result 1880 states and 2545 transitions. [2022-07-12 07:29:20,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:20,117 INFO L225 Difference]: With dead ends: 1880 [2022-07-12 07:29:20,117 INFO L226 Difference]: Without dead ends: 1710 [2022-07-12 07:29:20,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:20,118 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 3289 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:20,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3289 Valid, 2675 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:29:20,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-12 07:29:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 973. [2022-07-12 07:29:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 951 states have (on average 1.3249211356466877) internal successors, (1260), 972 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1260 transitions. [2022-07-12 07:29:20,494 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1260 transitions. Word has length 98 [2022-07-12 07:29:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:20,495 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1260 transitions. [2022-07-12 07:29:20,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1260 transitions. [2022-07-12 07:29:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:20,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:20,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:20,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-12 07:29:20,496 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 223226210, now seen corresponding path program 1 times [2022-07-12 07:29:20,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:20,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43175392] [2022-07-12 07:29:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:20,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:20,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:20,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43175392] [2022-07-12 07:29:20,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43175392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:20,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:20,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:20,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83677305] [2022-07-12 07:29:20,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:20,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:20,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:20,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:20,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:20,563 INFO L87 Difference]: Start difference. First operand 973 states and 1260 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:22,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:22,637 INFO L93 Difference]: Finished difference Result 2000 states and 2694 transitions. [2022-07-12 07:29:22,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:22,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:22,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:22,639 INFO L225 Difference]: With dead ends: 2000 [2022-07-12 07:29:22,639 INFO L226 Difference]: Without dead ends: 1790 [2022-07-12 07:29:22,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:22,640 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 2862 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:22,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2862 Valid, 3123 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2022-07-12 07:29:23,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 965. [2022-07-12 07:29:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 943 states have (on average 1.325556733828208) internal successors, (1250), 964 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:23,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1250 transitions. [2022-07-12 07:29:23,016 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1250 transitions. Word has length 98 [2022-07-12 07:29:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:23,017 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1250 transitions. [2022-07-12 07:29:23,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:23,017 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1250 transitions. [2022-07-12 07:29:23,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:23,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:23,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:23,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-12 07:29:23,018 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:23,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:23,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1972960612, now seen corresponding path program 1 times [2022-07-12 07:29:23,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:23,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82968315] [2022-07-12 07:29:23,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:23,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:23,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:23,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82968315] [2022-07-12 07:29:23,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82968315] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:23,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:23,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:23,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961580160] [2022-07-12 07:29:23,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:23,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:23,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:23,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:23,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:23,083 INFO L87 Difference]: Start difference. First operand 965 states and 1250 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:25,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:25,340 INFO L93 Difference]: Finished difference Result 1866 states and 2524 transitions. [2022-07-12 07:29:25,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:25,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:25,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:25,343 INFO L225 Difference]: With dead ends: 1866 [2022-07-12 07:29:25,343 INFO L226 Difference]: Without dead ends: 1702 [2022-07-12 07:29:25,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:25,344 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 2979 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:25,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 2888 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:25,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2022-07-12 07:29:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 957. [2022-07-12 07:29:25,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 935 states have (on average 1.3262032085561497) internal successors, (1240), 956 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1240 transitions. [2022-07-12 07:29:25,741 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1240 transitions. Word has length 98 [2022-07-12 07:29:25,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:25,741 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1240 transitions. [2022-07-12 07:29:25,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1240 transitions. [2022-07-12 07:29:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:25,742 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:25,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:25,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-12 07:29:25,742 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)] === [2022-07-12 07:29:25,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:25,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1538428317, now seen corresponding path program 1 times [2022-07-12 07:29:25,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:25,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339900568] [2022-07-12 07:29:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:25,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:25,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:25,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:25,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339900568] [2022-07-12 07:29:25,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339900568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:25,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:25,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:25,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355374547] [2022-07-12 07:29:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:25,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:25,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:25,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:25,812 INFO L87 Difference]: Start difference. First operand 957 states and 1240 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:27,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:27,746 INFO L93 Difference]: Finished difference Result 1796 states and 2423 transitions. [2022-07-12 07:29:27,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:27,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:27,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:27,749 INFO L225 Difference]: With dead ends: 1796 [2022-07-12 07:29:27,749 INFO L226 Difference]: Without dead ends: 1646 [2022-07-12 07:29:27,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:27,749 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 3059 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:27,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 2565 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:27,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-12 07:29:28,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 949. [2022-07-12 07:29:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 927 states have (on average 1.3268608414239482) internal successors, (1230), 948 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1230 transitions. [2022-07-12 07:29:28,129 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1230 transitions. Word has length 98 [2022-07-12 07:29:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:28,130 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1230 transitions. [2022-07-12 07:29:28,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1230 transitions. [2022-07-12 07:29:28,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:28,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:28,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:28,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-12 07:29:28,131 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:28,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:28,132 INFO L85 PathProgramCache]: Analyzing trace with hash -440198232, now seen corresponding path program 1 times [2022-07-12 07:29:28,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:28,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744176125] [2022-07-12 07:29:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:28,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:28,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:28,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744176125] [2022-07-12 07:29:28,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744176125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:28,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:28,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:28,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834604765] [2022-07-12 07:29:28,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:28,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:28,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:28,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:28,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:28,205 INFO L87 Difference]: Start difference. First operand 949 states and 1230 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:30,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:30,469 INFO L93 Difference]: Finished difference Result 1651 states and 2201 transitions. [2022-07-12 07:29:30,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:30,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:30,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:30,471 INFO L225 Difference]: With dead ends: 1651 [2022-07-12 07:29:30,471 INFO L226 Difference]: Without dead ends: 1646 [2022-07-12 07:29:30,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:30,472 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 3969 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3969 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:30,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3969 Valid, 2583 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:30,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-12 07:29:30,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 941. [2022-07-12 07:29:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 919 states have (on average 1.3275299238302503) internal successors, (1220), 940 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) [2022-07-12 07:29:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1220 transitions. [2022-07-12 07:29:30,865 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1220 transitions. Word has length 98 [2022-07-12 07:29:30,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:30,865 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1220 transitions. [2022-07-12 07:29:30,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:30,865 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1220 transitions. [2022-07-12 07:29:30,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:30,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:30,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:30,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-12 07:29:30,867 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:30,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:30,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1339696265, now seen corresponding path program 1 times [2022-07-12 07:29:30,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:30,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626295673] [2022-07-12 07:29:30,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:30,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:30,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:30,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626295673] [2022-07-12 07:29:30,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626295673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:30,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:30,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809340271] [2022-07-12 07:29:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:30,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:30,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:30,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:30,933 INFO L87 Difference]: Start difference. First operand 941 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) [2022-07-12 07:29:33,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:33,077 INFO L93 Difference]: Finished difference Result 1703 states and 2279 transitions. [2022-07-12 07:29:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:33,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:33,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:33,079 INFO L225 Difference]: With dead ends: 1703 [2022-07-12 07:29:33,079 INFO L226 Difference]: Without dead ends: 1686 [2022-07-12 07:29:33,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:33,080 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 2917 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2917 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:33,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2917 Valid, 2934 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-12 07:29:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 933. [2022-07-12 07:29:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 911 states have (on average 1.3282107574094402) internal successors, (1210), 932 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) [2022-07-12 07:29:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1210 transitions. [2022-07-12 07:29:33,458 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1210 transitions. Word has length 98 [2022-07-12 07:29:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:33,458 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1210 transitions. [2022-07-12 07:29:33,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1210 transitions. [2022-07-12 07:29:33,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:33,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:33,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:33,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-12 07:29:33,459 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:33,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:33,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1736566412, now seen corresponding path program 1 times [2022-07-12 07:29:33,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:33,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409728098] [2022-07-12 07:29:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:33,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:33,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:33,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409728098] [2022-07-12 07:29:33,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409728098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:33,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:33,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:33,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367079336] [2022-07-12 07:29:33,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:33,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:33,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:33,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:33,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:33,524 INFO L87 Difference]: Start difference. First operand 933 states and 1210 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:35,634 INFO L93 Difference]: Finished difference Result 1844 states and 2493 transitions. [2022-07-12 07:29:35,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:35,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:35,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:35,636 INFO L225 Difference]: With dead ends: 1844 [2022-07-12 07:29:35,636 INFO L226 Difference]: Without dead ends: 1686 [2022-07-12 07:29:35,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:35,637 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 2880 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:35,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 2980 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-12 07:29:36,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 929. [2022-07-12 07:29:36,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 907 states have (on average 1.328555678059537) internal successors, (1205), 928 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:36,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1205 transitions. [2022-07-12 07:29:36,041 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1205 transitions. Word has length 98 [2022-07-12 07:29:36,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:36,041 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1205 transitions. [2022-07-12 07:29:36,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:36,041 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1205 transitions. [2022-07-12 07:29:36,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:36,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:36,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:36,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-12 07:29:36,042 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:36,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:36,042 INFO L85 PathProgramCache]: Analyzing trace with hash 952508426, now seen corresponding path program 1 times [2022-07-12 07:29:36,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:36,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234414964] [2022-07-12 07:29:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:36,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:36,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:36,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234414964] [2022-07-12 07:29:36,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234414964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:36,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:36,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:36,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404428464] [2022-07-12 07:29:36,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:36,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:36,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:36,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:36,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:36,126 INFO L87 Difference]: Start difference. First operand 929 states and 1205 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:38,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:38,298 INFO L93 Difference]: Finished difference Result 1782 states and 2402 transitions. [2022-07-12 07:29:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:38,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:38,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:38,300 INFO L225 Difference]: With dead ends: 1782 [2022-07-12 07:29:38,300 INFO L226 Difference]: Without dead ends: 1634 [2022-07-12 07:29:38,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:38,300 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 2043 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:38,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 2668 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:38,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-07-12 07:29:38,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 925. [2022-07-12 07:29:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3289036544850499) internal successors, (1200), 924 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:38,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1200 transitions. [2022-07-12 07:29:38,670 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1200 transitions. Word has length 98 [2022-07-12 07:29:38,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:38,671 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1200 transitions. [2022-07-12 07:29:38,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1200 transitions. [2022-07-12 07:29:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:38,672 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:38,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:38,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-12 07:29:38,672 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:38,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:38,672 INFO L85 PathProgramCache]: Analyzing trace with hash -785107352, now seen corresponding path program 1 times [2022-07-12 07:29:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:38,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391472757] [2022-07-12 07:29:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:38,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:38,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:38,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391472757] [2022-07-12 07:29:38,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391472757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:38,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:38,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:38,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195249616] [2022-07-12 07:29:38,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:38,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:38,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:38,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:38,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:38,746 INFO L87 Difference]: Start difference. First operand 925 states and 1200 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:41,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:41,016 INFO L93 Difference]: Finished difference Result 1780 states and 2399 transitions. [2022-07-12 07:29:41,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:41,017 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:41,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:41,019 INFO L225 Difference]: With dead ends: 1780 [2022-07-12 07:29:41,019 INFO L226 Difference]: Without dead ends: 1634 [2022-07-12 07:29:41,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:41,020 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 3609 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:41,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 3078 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-07-12 07:29:41,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 925. [2022-07-12 07:29:41,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.327796234772979) internal successors, (1199), 924 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:41,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1199 transitions. [2022-07-12 07:29:41,419 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1199 transitions. Word has length 98 [2022-07-12 07:29:41,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:41,419 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1199 transitions. [2022-07-12 07:29:41,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:41,419 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1199 transitions. [2022-07-12 07:29:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:41,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:41,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:41,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-12 07:29:41,420 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:41,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1025638504, now seen corresponding path program 1 times [2022-07-12 07:29:41,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:41,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576524363] [2022-07-12 07:29:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:41,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:41,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:41,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576524363] [2022-07-12 07:29:41,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576524363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:41,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:41,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:41,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597725441] [2022-07-12 07:29:41,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:41,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:41,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:41,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:41,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:41,493 INFO L87 Difference]: Start difference. First operand 925 states and 1199 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:43,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:43,887 INFO L93 Difference]: Finished difference Result 1785 states and 2403 transitions. [2022-07-12 07:29:43,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:43,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:43,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:43,889 INFO L225 Difference]: With dead ends: 1785 [2022-07-12 07:29:43,889 INFO L226 Difference]: Without dead ends: 1634 [2022-07-12 07:29:43,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:43,889 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 3835 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:43,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 2685 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-07-12 07:29:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 921. [2022-07-12 07:29:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.328142380422692) internal successors, (1194), 920 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1194 transitions. [2022-07-12 07:29:44,267 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1194 transitions. Word has length 98 [2022-07-12 07:29:44,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:44,267 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1194 transitions. [2022-07-12 07:29:44,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1194 transitions. [2022-07-12 07:29:44,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:44,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:44,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:44,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-12 07:29:44,269 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)] === [2022-07-12 07:29:44,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:44,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1925136537, now seen corresponding path program 1 times [2022-07-12 07:29:44,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:44,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827187530] [2022-07-12 07:29:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:44,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:44,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:44,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827187530] [2022-07-12 07:29:44,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827187530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:44,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:44,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:44,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413911696] [2022-07-12 07:29:44,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:44,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:44,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:44,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:44,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:44,342 INFO L87 Difference]: Start difference. First operand 921 states and 1194 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:46,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:46,577 INFO L93 Difference]: Finished difference Result 1841 states and 2486 transitions. [2022-07-12 07:29:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:46,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:46,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:46,579 INFO L225 Difference]: With dead ends: 1841 [2022-07-12 07:29:46,579 INFO L226 Difference]: Without dead ends: 1678 [2022-07-12 07:29:46,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:46,580 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 2840 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:46,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2840 Valid, 3018 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2152 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:46,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-07-12 07:29:46,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 917. [2022-07-12 07:29:46,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3284916201117318) internal successors, (1189), 916 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:46,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1189 transitions. [2022-07-12 07:29:46,975 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1189 transitions. Word has length 98 [2022-07-12 07:29:46,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:46,976 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1189 transitions. [2022-07-12 07:29:46,976 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) [2022-07-12 07:29:46,976 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1189 transitions. [2022-07-12 07:29:46,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:46,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:46,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:46,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-12 07:29:46,977 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:46,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1897114906, now seen corresponding path program 1 times [2022-07-12 07:29:46,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:46,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57905853] [2022-07-12 07:29:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:46,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:47,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:47,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57905853] [2022-07-12 07:29:47,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57905853] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:47,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:47,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:47,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40654055] [2022-07-12 07:29:47,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:47,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:47,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:47,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:47,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:47,054 INFO L87 Difference]: Start difference. First operand 917 states and 1189 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:49,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:49,330 INFO L93 Difference]: Finished difference Result 1777 states and 2393 transitions. [2022-07-12 07:29:49,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:49,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:49,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:49,333 INFO L225 Difference]: With dead ends: 1777 [2022-07-12 07:29:49,333 INFO L226 Difference]: Without dead ends: 1630 [2022-07-12 07:29:49,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:49,333 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 3577 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3577 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:49,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3577 Valid, 3146 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:49,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-07-12 07:29:49,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 917. [2022-07-12 07:29:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3273743016759776) internal successors, (1188), 916 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1188 transitions. [2022-07-12 07:29:49,731 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1188 transitions. Word has length 98 [2022-07-12 07:29:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:49,731 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1188 transitions. [2022-07-12 07:29:49,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:49,731 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1188 transitions. [2022-07-12 07:29:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:49,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:49,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:49,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-12 07:29:49,733 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:49,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash 997428961, now seen corresponding path program 1 times [2022-07-12 07:29:49,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:49,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954176634] [2022-07-12 07:29:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:49,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:49,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:49,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:49,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954176634] [2022-07-12 07:29:49,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954176634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:49,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:49,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:49,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36895501] [2022-07-12 07:29:49,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:49,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:49,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:49,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:49,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:49,820 INFO L87 Difference]: Start difference. First operand 917 states and 1188 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:52,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:52,219 INFO L93 Difference]: Finished difference Result 1776 states and 2391 transitions. [2022-07-12 07:29:52,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:52,220 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:52,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:52,221 INFO L225 Difference]: With dead ends: 1776 [2022-07-12 07:29:52,221 INFO L226 Difference]: Without dead ends: 1630 [2022-07-12 07:29:52,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:52,222 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 3258 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3258 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:52,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3258 Valid, 2738 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:29:52,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-07-12 07:29:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 913. [2022-07-12 07:29:52,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3277216610549945) internal successors, (1183), 912 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:52,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1183 transitions. [2022-07-12 07:29:52,615 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1183 transitions. Word has length 98 [2022-07-12 07:29:52,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:52,615 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1183 transitions. [2022-07-12 07:29:52,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:52,615 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1183 transitions. [2022-07-12 07:29:52,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:52,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:52,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:52,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-12 07:29:52,617 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:52,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:52,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1735285257, now seen corresponding path program 1 times [2022-07-12 07:29:52,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:52,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220259677] [2022-07-12 07:29:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:52,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:52,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:52,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:52,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220259677] [2022-07-12 07:29:52,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220259677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:52,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:52,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:52,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363994507] [2022-07-12 07:29:52,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:52,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:52,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:52,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:52,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:52,694 INFO L87 Difference]: Start difference. First operand 913 states and 1183 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:54,978 INFO L93 Difference]: Finished difference Result 1828 states and 2470 transitions. [2022-07-12 07:29:54,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:54,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:54,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:54,980 INFO L225 Difference]: With dead ends: 1828 [2022-07-12 07:29:54,980 INFO L226 Difference]: Without dead ends: 1674 [2022-07-12 07:29:54,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:54,981 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 2800 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2800 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:54,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2800 Valid, 3062 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-07-12 07:29:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 909. [2022-07-12 07:29:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3280721533258173) internal successors, (1178), 908 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:55,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1178 transitions. [2022-07-12 07:29:55,380 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1178 transitions. Word has length 98 [2022-07-12 07:29:55,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:55,380 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1178 transitions. [2022-07-12 07:29:55,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:55,380 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1178 transitions. [2022-07-12 07:29:55,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:55,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:55,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:55,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-07-12 07:29:55,381 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:55,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:55,381 INFO L85 PathProgramCache]: Analyzing trace with hash -670691083, now seen corresponding path program 1 times [2022-07-12 07:29:55,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:55,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133288164] [2022-07-12 07:29:55,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:55,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:55,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:55,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133288164] [2022-07-12 07:29:55,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133288164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:55,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:55,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:55,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378163576] [2022-07-12 07:29:55,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:55,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:55,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:55,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:55,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:55,447 INFO L87 Difference]: Start difference. First operand 909 states and 1178 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:57,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:29:57,555 INFO L93 Difference]: Finished difference Result 1832 states and 2472 transitions. [2022-07-12 07:29:57,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:29:57,556 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:29:57,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:29:57,557 INFO L225 Difference]: With dead ends: 1832 [2022-07-12 07:29:57,557 INFO L226 Difference]: Without dead ends: 1674 [2022-07-12 07:29:57,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:29:57,558 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 1911 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:29:57,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 3088 Invalid, 2236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:29:57,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-07-12 07:29:57,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 905. [2022-07-12 07:29:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3284258210645528) internal successors, (1173), 904 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:57,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1173 transitions. [2022-07-12 07:29:57,943 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1173 transitions. Word has length 98 [2022-07-12 07:29:57,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:29:57,943 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1173 transitions. [2022-07-12 07:29:57,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:29:57,943 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1173 transitions. [2022-07-12 07:29:57,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:29:57,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:29:57,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:29:57,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-07-12 07:29:57,944 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:29:57,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:29:57,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1454965543, now seen corresponding path program 1 times [2022-07-12 07:29:57,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:29:57,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919595079] [2022-07-12 07:29:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:29:57,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:29:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:29:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:29:58,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:29:58,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919595079] [2022-07-12 07:29:58,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919595079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:29:58,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:29:58,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:29:58,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575236236] [2022-07-12 07:29:58,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:29:58,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:29:58,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:29:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:29:58,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:29:58,028 INFO L87 Difference]: Start difference. First operand 905 states and 1173 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:00,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:00,332 INFO L93 Difference]: Finished difference Result 1770 states and 2382 transitions. [2022-07-12 07:30:00,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:30:00,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:30:00,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:00,334 INFO L225 Difference]: With dead ends: 1770 [2022-07-12 07:30:00,334 INFO L226 Difference]: Without dead ends: 1622 [2022-07-12 07:30:00,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:30:00,335 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 1975 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:00,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 2801 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:30:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-07-12 07:30:00,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-07-12 07:30:00,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.328782707622298) internal successors, (1168), 900 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1168 transitions. [2022-07-12 07:30:00,752 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1168 transitions. Word has length 98 [2022-07-12 07:30:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:00,752 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1168 transitions. [2022-07-12 07:30:00,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1168 transitions. [2022-07-12 07:30:00,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:00,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:00,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:00,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-07-12 07:30:00,755 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:00,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:00,755 INFO L85 PathProgramCache]: Analyzing trace with hash -472216631, now seen corresponding path program 1 times [2022-07-12 07:30:00,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:00,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815420598] [2022-07-12 07:30:00,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:00,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:01,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:01,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815420598] [2022-07-12 07:30:01,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815420598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:01,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:01,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:30:01,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237438260] [2022-07-12 07:30:01,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:01,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:30:01,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:30:01,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:30:01,052 INFO L87 Difference]: Start difference. First operand 901 states and 1168 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:05,344 INFO L93 Difference]: Finished difference Result 3204 states and 4407 transitions. [2022-07-12 07:30:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:30:05,344 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:05,347 INFO L225 Difference]: With dead ends: 3204 [2022-07-12 07:30:05,347 INFO L226 Difference]: Without dead ends: 3012 [2022-07-12 07:30:05,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-07-12 07:30:05,348 INFO L413 NwaCegarLoop]: 1706 mSDtfsCounter, 3925 mSDsluCounter, 11616 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3925 SdHoareTripleChecker+Valid, 13322 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:05,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3925 Valid, 13322 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:30:05,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2022-07-12 07:30:05,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 855. [2022-07-12 07:30:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3273381294964028) internal successors, (1107), 854 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1107 transitions. [2022-07-12 07:30:05,796 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1107 transitions. Word has length 99 [2022-07-12 07:30:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:05,796 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1107 transitions. [2022-07-12 07:30:05,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:05,797 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1107 transitions. [2022-07-12 07:30:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:05,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:05,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:05,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-07-12 07:30:05,798 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:05,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1755253690, now seen corresponding path program 1 times [2022-07-12 07:30:05,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:05,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315695537] [2022-07-12 07:30:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:05,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:06,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:06,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:06,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315695537] [2022-07-12 07:30:06,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315695537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:06,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:06,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 07:30:06,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70784204] [2022-07-12 07:30:06,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:06,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 07:30:06,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:06,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 07:30:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-12 07:30:06,211 INFO L87 Difference]: Start difference. First operand 855 states and 1107 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:10,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:10,076 INFO L93 Difference]: Finished difference Result 2471 states and 3355 transitions. [2022-07-12 07:30:10,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 07:30:10,076 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:10,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:10,079 INFO L225 Difference]: With dead ends: 2471 [2022-07-12 07:30:10,079 INFO L226 Difference]: Without dead ends: 2267 [2022-07-12 07:30:10,080 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 [2022-07-12 07:30:10,080 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 5568 mSDsluCounter, 10521 mSDsCounter, 0 mSdLazyCounter, 2079 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 12062 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:10,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5568 Valid, 12062 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2079 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 07:30:10,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2022-07-12 07:30:10,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 855. [2022-07-12 07:30:10,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3249400479616307) internal successors, (1105), 854 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1105 transitions. [2022-07-12 07:30:10,533 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1105 transitions. Word has length 99 [2022-07-12 07:30:10,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:10,533 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1105 transitions. [2022-07-12 07:30:10,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:10,533 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1105 transitions. [2022-07-12 07:30:10,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:10,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:10,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:10,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-07-12 07:30:10,534 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:10,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash 134385077, now seen corresponding path program 1 times [2022-07-12 07:30:10,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:10,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412460132] [2022-07-12 07:30:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:10,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412460132] [2022-07-12 07:30:10,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412460132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:10,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:10,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:10,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222650106] [2022-07-12 07:30:10,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:10,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:10,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:10,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:10,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:10,751 INFO L87 Difference]: Start difference. First operand 855 states and 1105 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:13,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:13,011 INFO L93 Difference]: Finished difference Result 1406 states and 1846 transitions. [2022-07-12 07:30:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 07:30:13,012 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:13,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:13,013 INFO L225 Difference]: With dead ends: 1406 [2022-07-12 07:30:13,013 INFO L226 Difference]: Without dead ends: 1254 [2022-07-12 07:30:13,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:30:13,014 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 3713 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3713 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:13,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3713 Valid, 4458 Invalid, 2326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:30:13,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-07-12 07:30:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 845. [2022-07-12 07:30:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 825 states have (on average 1.3212121212121213) internal successors, (1090), 844 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1090 transitions. [2022-07-12 07:30:13,488 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1090 transitions. Word has length 99 [2022-07-12 07:30:13,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:13,488 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1090 transitions. [2022-07-12 07:30:13,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:13,488 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1090 transitions. [2022-07-12 07:30:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:13,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:13,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:13,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-07-12 07:30:13,489 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:13,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:13,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1796136237, now seen corresponding path program 1 times [2022-07-12 07:30:13,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:13,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979492216] [2022-07-12 07:30:13,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:13,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:13,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:13,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979492216] [2022-07-12 07:30:13,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979492216] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:13,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:13,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:30:13,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932201726] [2022-07-12 07:30:13,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:13,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:30:13,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:13,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:30:13,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:30:13,746 INFO L87 Difference]: Start difference. First operand 845 states and 1090 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:18,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:18,383 INFO L93 Difference]: Finished difference Result 3006 states and 4142 transitions. [2022-07-12 07:30:18,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:30:18,384 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:18,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:18,387 INFO L225 Difference]: With dead ends: 3006 [2022-07-12 07:30:18,387 INFO L226 Difference]: Without dead ends: 2806 [2022-07-12 07:30:18,388 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 [2022-07-12 07:30:18,388 INFO L413 NwaCegarLoop]: 1686 mSDtfsCounter, 4269 mSDsluCounter, 11085 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4269 SdHoareTripleChecker+Valid, 12771 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:18,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4269 Valid, 12771 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:30:18,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2022-07-12 07:30:18,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 791. [2022-07-12 07:30:18,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 774 states have (on average 1.3165374677002584) internal successors, (1019), 790 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:18,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1019 transitions. [2022-07-12 07:30:18,863 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1019 transitions. Word has length 99 [2022-07-12 07:30:18,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:18,863 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1019 transitions. [2022-07-12 07:30:18,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1019 transitions. [2022-07-12 07:30:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:18,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:18,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:18,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-07-12 07:30:18,864 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)] === [2022-07-12 07:30:18,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1243357058, now seen corresponding path program 1 times [2022-07-12 07:30:18,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:18,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962683768] [2022-07-12 07:30:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:18,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:19,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:19,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962683768] [2022-07-12 07:30:19,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962683768] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:19,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:19,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:30:19,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652130944] [2022-07-12 07:30:19,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:19,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:30:19,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:19,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:30:19,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:30:19,108 INFO L87 Difference]: Start difference. First operand 791 states and 1019 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:23,635 INFO L93 Difference]: Finished difference Result 2952 states and 4069 transitions. [2022-07-12 07:30:23,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:30:23,636 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:23,638 INFO L225 Difference]: With dead ends: 2952 [2022-07-12 07:30:23,638 INFO L226 Difference]: Without dead ends: 2770 [2022-07-12 07:30:23,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-07-12 07:30:23,639 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 4937 mSDsluCounter, 10113 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 11656 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:23,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4937 Valid, 11656 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:30:23,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2022-07-12 07:30:24,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 755. [2022-07-12 07:30:24,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 738 states have (on average 1.3130081300813008) internal successors, (969), 754 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 969 transitions. [2022-07-12 07:30:24,128 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 969 transitions. Word has length 99 [2022-07-12 07:30:24,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:24,128 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 969 transitions. [2022-07-12 07:30:24,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:24,128 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 969 transitions. [2022-07-12 07:30:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:24,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:24,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:24,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-07-12 07:30:24,129 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:24,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1918631710, now seen corresponding path program 1 times [2022-07-12 07:30:24,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:24,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287312719] [2022-07-12 07:30:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:24,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:24,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:24,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287312719] [2022-07-12 07:30:24,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287312719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:24,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:24,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:24,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384096713] [2022-07-12 07:30:24,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:24,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:24,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:24,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:24,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:24,358 INFO L87 Difference]: Start difference. First operand 755 states and 969 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:26,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:26,047 INFO L93 Difference]: Finished difference Result 1413 states and 1918 transitions. [2022-07-12 07:30:26,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 07:30:26,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:26,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:26,050 INFO L225 Difference]: With dead ends: 1413 [2022-07-12 07:30:26,050 INFO L226 Difference]: Without dead ends: 1105 [2022-07-12 07:30:26,050 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 [2022-07-12 07:30:26,051 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 3300 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3300 SdHoareTripleChecker+Valid, 4667 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 [2022-07-12 07:30:26,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3300 Valid, 4667 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:30:26,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2022-07-12 07:30:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 593. [2022-07-12 07:30:26,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 581 states have (on average 1.3166953528399312) internal successors, (765), 592 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:26,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 765 transitions. [2022-07-12 07:30:26,463 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 765 transitions. Word has length 99 [2022-07-12 07:30:26,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:26,463 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 765 transitions. [2022-07-12 07:30:26,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:26,463 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 765 transitions. [2022-07-12 07:30:26,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:26,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:26,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:26,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-07-12 07:30:26,464 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1407077202, now seen corresponding path program 1 times [2022-07-12 07:30:26,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:26,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092850759] [2022-07-12 07:30:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:26,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:26,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:26,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:26,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092850759] [2022-07-12 07:30:26,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092850759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:26,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:26,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:30:26,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793783644] [2022-07-12 07:30:26,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:26,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:30:26,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:26,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:30:26,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:30:26,665 INFO L87 Difference]: Start difference. First operand 593 states and 765 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:31,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:31,256 INFO L93 Difference]: Finished difference Result 2443 states and 3426 transitions. [2022-07-12 07:30:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:30:31,257 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:31,259 INFO L225 Difference]: With dead ends: 2443 [2022-07-12 07:30:31,259 INFO L226 Difference]: Without dead ends: 2290 [2022-07-12 07:30:31,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:30:31,260 INFO L413 NwaCegarLoop]: 1391 mSDtfsCounter, 3086 mSDsluCounter, 9196 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3086 SdHoareTripleChecker+Valid, 10587 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:31,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3086 Valid, 10587 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:30:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-07-12 07:30:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 586. [2022-07-12 07:30:31,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 574 states have (on average 1.3153310104529616) internal successors, (755), 585 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:31,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 755 transitions. [2022-07-12 07:30:31,705 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 755 transitions. Word has length 99 [2022-07-12 07:30:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:31,705 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 755 transitions. [2022-07-12 07:30:31,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 755 transitions. [2022-07-12 07:30:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:31,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:31,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:31,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-07-12 07:30:31,706 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:31,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:31,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2018116842, now seen corresponding path program 1 times [2022-07-12 07:30:31,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:31,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550131295] [2022-07-12 07:30:31,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:32,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:32,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550131295] [2022-07-12 07:30:32,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550131295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:32,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:32,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 07:30:32,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99884391] [2022-07-12 07:30:32,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:32,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 07:30:32,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 07:30:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-12 07:30:32,062 INFO L87 Difference]: Start difference. First operand 586 states and 755 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:36,118 INFO L93 Difference]: Finished difference Result 1907 states and 2618 transitions. [2022-07-12 07:30:36,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 07:30:36,118 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:36,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:36,120 INFO L225 Difference]: With dead ends: 1907 [2022-07-12 07:30:36,120 INFO L226 Difference]: Without dead ends: 1724 [2022-07-12 07:30:36,121 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 [2022-07-12 07:30:36,121 INFO L413 NwaCegarLoop]: 1131 mSDtfsCounter, 3514 mSDsluCounter, 9664 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 10795 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:36,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 10795 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 07:30:36,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2022-07-12 07:30:36,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 568. [2022-07-12 07:30:36,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 556 states have (on average 1.3111510791366907) internal successors, (729), 567 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:36,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 729 transitions. [2022-07-12 07:30:36,557 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 729 transitions. Word has length 99 [2022-07-12 07:30:36,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:36,558 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 729 transitions. [2022-07-12 07:30:36,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:36,558 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 729 transitions. [2022-07-12 07:30:36,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:36,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:36,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:36,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-07-12 07:30:36,558 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:36,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:36,559 INFO L85 PathProgramCache]: Analyzing trace with hash 204495174, now seen corresponding path program 1 times [2022-07-12 07:30:36,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:36,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833395132] [2022-07-12 07:30:36,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:36,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:36,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:36,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:36,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833395132] [2022-07-12 07:30:36,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833395132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:36,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:36,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:36,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014896340] [2022-07-12 07:30:36,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:36,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:36,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:36,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:36,773 INFO L87 Difference]: Start difference. First operand 568 states and 729 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:38,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:38,487 INFO L93 Difference]: Finished difference Result 1012 states and 1343 transitions. [2022-07-12 07:30:38,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:38,487 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:38,488 INFO L225 Difference]: With dead ends: 1012 [2022-07-12 07:30:38,488 INFO L226 Difference]: Without dead ends: 862 [2022-07-12 07:30:38,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:38,489 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 2480 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2480 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:38,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2480 Valid, 2756 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:30:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2022-07-12 07:30:38,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 564. [2022-07-12 07:30:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 553 states have (on average 1.3092224231464737) internal successors, (724), 563 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 724 transitions. [2022-07-12 07:30:38,906 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 724 transitions. Word has length 99 [2022-07-12 07:30:38,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:38,906 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 724 transitions. [2022-07-12 07:30:38,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:38,906 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 724 transitions. [2022-07-12 07:30:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:30:38,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:38,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:38,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-07-12 07:30:38,907 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:38,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:38,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1576021974, now seen corresponding path program 1 times [2022-07-12 07:30:38,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:38,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983867592] [2022-07-12 07:30:38,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:39,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:39,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:39,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983867592] [2022-07-12 07:30:39,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983867592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:39,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:39,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-12 07:30:39,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344735158] [2022-07-12 07:30:39,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:39,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 07:30:39,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:39,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 07:30:39,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-12 07:30:39,176 INFO L87 Difference]: Start difference. First operand 564 states and 724 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:41,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:41,063 INFO L93 Difference]: Finished difference Result 1123 states and 1520 transitions. [2022-07-12 07:30:41,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:30:41,063 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:30:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:41,064 INFO L225 Difference]: With dead ends: 1123 [2022-07-12 07:30:41,065 INFO L226 Difference]: Without dead ends: 793 [2022-07-12 07:30:41,065 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 [2022-07-12 07:30:41,065 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1874 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 4036 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:41,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1874 Valid, 4036 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:30:41,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-07-12 07:30:41,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 470. [2022-07-12 07:30:41,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 460 states have (on average 1.3021739130434782) internal successors, (599), 469 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:41,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 599 transitions. [2022-07-12 07:30:41,477 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 599 transitions. Word has length 99 [2022-07-12 07:30:41,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:41,477 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 599 transitions. [2022-07-12 07:30:41,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 599 transitions. [2022-07-12 07:30:41,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:30:41,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:41,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:41,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-07-12 07:30:41,478 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:41,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:41,479 INFO L85 PathProgramCache]: Analyzing trace with hash 669683478, now seen corresponding path program 1 times [2022-07-12 07:30:41,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:41,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017397261] [2022-07-12 07:30:41,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:41,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:41,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:41,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017397261] [2022-07-12 07:30:41,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017397261] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:41,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:41,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:30:41,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297544377] [2022-07-12 07:30:41,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:41,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:30:41,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:41,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:30:41,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:30:41,677 INFO L87 Difference]: Start difference. First operand 470 states and 599 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) [2022-07-12 07:30:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:43,280 INFO L93 Difference]: Finished difference Result 870 states and 1160 transitions. [2022-07-12 07:30:43,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:30:43,280 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 [2022-07-12 07:30:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:43,281 INFO L225 Difference]: With dead ends: 870 [2022-07-12 07:30:43,281 INFO L226 Difference]: Without dead ends: 718 [2022-07-12 07:30:43,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:30:43,282 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1826 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:43,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 2129 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:30:43,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-07-12 07:30:43,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 458. [2022-07-12 07:30:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 449 states have (on average 1.2962138084632517) internal successors, (582), 457 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) [2022-07-12 07:30:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 582 transitions. [2022-07-12 07:30:43,690 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 582 transitions. Word has length 100 [2022-07-12 07:30:43,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:43,690 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 582 transitions. [2022-07-12 07:30:43,690 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) [2022-07-12 07:30:43,690 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 582 transitions. [2022-07-12 07:30:43,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:30:43,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:43,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:43,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-07-12 07:30:43,691 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:43,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:43,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1110833670, now seen corresponding path program 1 times [2022-07-12 07:30:43,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:43,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551839370] [2022-07-12 07:30:43,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:43,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:44,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:44,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:44,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551839370] [2022-07-12 07:30:44,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551839370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:44,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:44,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 07:30:44,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273008646] [2022-07-12 07:30:44,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:44,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 07:30:44,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:44,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 07:30:44,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-07-12 07:30:44,034 INFO L87 Difference]: Start difference. First operand 458 states and 582 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) [2022-07-12 07:30:47,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:30:47,510 INFO L93 Difference]: Finished difference Result 1357 states and 1834 transitions. [2022-07-12 07:30:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:30:47,511 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 [2022-07-12 07:30:47,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:30:47,512 INFO L225 Difference]: With dead ends: 1357 [2022-07-12 07:30:47,512 INFO L226 Difference]: Without dead ends: 1191 [2022-07-12 07:30:47,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2022-07-12 07:30:47,512 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 2557 mSDsluCounter, 8631 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 9496 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:30:47,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2557 Valid, 9496 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:30:47,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2022-07-12 07:30:47,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 428. [2022-07-12 07:30:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 420 states have (on average 1.2952380952380953) internal successors, (544), 427 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:30:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 544 transitions. [2022-07-12 07:30:47,954 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 544 transitions. Word has length 100 [2022-07-12 07:30:47,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:30:47,954 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 544 transitions. [2022-07-12 07:30:47,954 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) [2022-07-12 07:30:47,954 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 544 transitions. [2022-07-12 07:30:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:30:47,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:30:47,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:30:47,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-07-12 07:30:47,955 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-12 07:30:47,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:30:47,955 INFO L85 PathProgramCache]: Analyzing trace with hash 586480972, now seen corresponding path program 1 times [2022-07-12 07:30:47,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:30:47,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134345996] [2022-07-12 07:30:47,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:30:47,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:30:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:30:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:30:48,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:30:48,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134345996] [2022-07-12 07:30:48,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134345996] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:30:48,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:30:48,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:30:48,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574663090] [2022-07-12 07:30:48,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:30:48,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:30:48,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:30:48,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:30:48,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:30:48,035 INFO L87 Difference]: Start difference. First operand 428 states and 544 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)