./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d7ece5c4a9a1765b3b43243827c3f464d1b8786fc999bf2c8e86adac4d3a79a --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:41:01,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:41:01,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:41:01,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:41:01,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:41:01,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:41:01,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:41:01,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:41:01,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:41:01,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:41:01,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:41:01,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:41:01,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:41:01,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:41:01,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:41:01,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:41:01,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:41:01,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:41:01,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:41:01,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:41:02,000 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:41:02,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:41:02,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:41:02,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:41:02,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:41:02,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:41:02,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:41:02,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:41:02,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:41:02,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:41:02,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:41:02,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:41:02,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:41:02,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:41:02,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:41:02,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:41:02,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:41:02,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:41:02,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:41:02,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:41:02,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:41:02,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:41:02,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:41:02,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:41:02,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:41:02,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:41:02,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:41:02,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:41:02,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:41:02,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:41:02,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:41:02,044 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:41:02,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:41:02,045 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:41:02,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:41:02,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:41:02,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:41:02,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:41:02,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:41:02,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:41:02,046 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:41:02,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:41:02,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:41:02,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:41:02,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:41:02,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:41:02,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:41:02,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:41:02,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:41:02,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:41:02,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:41:02,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:41:02,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:41:02,049 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:41:02,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:41:02,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:41:02,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d7ece5c4a9a1765b3b43243827c3f464d1b8786fc999bf2c8e86adac4d3a79a [2022-07-22 18:41:02,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:41:02,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:41:02,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:41:02,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:41:02,231 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:41:02,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:41:02,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aae1d7f7/08292a42967e4a2da80d02a94a36e4b1/FLAGda500e0e1 [2022-07-22 18:41:02,762 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:41:02,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:41:02,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aae1d7f7/08292a42967e4a2da80d02a94a36e4b1/FLAGda500e0e1 [2022-07-22 18:41:03,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aae1d7f7/08292a42967e4a2da80d02a94a36e4b1 [2022-07-22 18:41:03,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:41:03,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:41:03,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:41:03,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:41:03,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:41:03,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:41:03" (1/1) ... [2022-07-22 18:41:03,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c831380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:03, skipping insertion in model container [2022-07-22 18:41:03,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:41:03" (1/1) ... [2022-07-22 18:41:03,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:41:03,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:41:03,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33192,33205] [2022-07-22 18:41:03,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47557,47570] [2022-07-22 18:41:03,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54728,54741] [2022-07-22 18:41:03,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58287,58300] [2022-07-22 18:41:03,751 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.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61647,61660] [2022-07-22 18:41:03,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76934,76947] [2022-07-22 18:41:03,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[84100,84113] [2022-07-22 18:41:03,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87654,87667] [2022-07-22 18:41:03,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[91009,91022] [2022-07-22 18:41:03,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[95142,95155] [2022-07-22 18:41:03,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98563,98576] [2022-07-22 18:41:03,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[102117,102130] [2022-07-22 18:41:03,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105472,105485] [2022-07-22 18:41:03,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[109226,109239] [2022-07-22 18:41:03,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112596,112609] [2022-07-22 18:41:03,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116131,116144] [2022-07-22 18:41:03,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:41:03,949 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:41:04,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33192,33205] [2022-07-22 18:41:04,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47557,47570] [2022-07-22 18:41:04,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54728,54741] [2022-07-22 18:41:04,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58287,58300] [2022-07-22 18:41:04,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61647,61660] [2022-07-22 18:41:04,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76934,76947] [2022-07-22 18:41:04,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[84100,84113] [2022-07-22 18:41:04,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87654,87667] [2022-07-22 18:41:04,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[91009,91022] [2022-07-22 18:41:04,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[95142,95155] [2022-07-22 18:41:04,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98563,98576] [2022-07-22 18:41:04,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[102117,102130] [2022-07-22 18:41:04,145 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.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105472,105485] [2022-07-22 18:41:04,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[109226,109239] [2022-07-22 18:41:04,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112596,112609] [2022-07-22 18:41:04,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116131,116144] [2022-07-22 18:41:04,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:41:04,188 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:41:04,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04 WrapperNode [2022-07-22 18:41:04,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:41:04,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:41:04,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:41:04,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:41:04,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,309 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5420 [2022-07-22 18:41:04,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:41:04,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:41:04,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:41:04,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:41:04,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:41:04,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:41:04,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:41:04,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:41:04,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (1/1) ... [2022-07-22 18:41:04,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:41:04,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:41:04,464 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) [2022-07-22 18:41:04,471 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 [2022-07-22 18:41:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:41:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:41:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:41:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:41:04,700 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:41:04,702 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:41:06,376 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:41:06,394 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:41:06,395 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 18:41:06,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:41:06 BoogieIcfgContainer [2022-07-22 18:41:06,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:41:06,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:41:06,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:41:06,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:41:06,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:41:03" (1/3) ... [2022-07-22 18:41:06,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f84b436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:41:06, skipping insertion in model container [2022-07-22 18:41:06,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:41:04" (2/3) ... [2022-07-22 18:41:06,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f84b436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:41:06, skipping insertion in model container [2022-07-22 18:41:06,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:41:06" (3/3) ... [2022-07-22 18:41:06,404 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:41:06,416 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:41:06,417 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-07-22 18:41:06,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:41:06,476 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@34d90b25, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c187715 [2022-07-22 18:41:06,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-07-22 18:41:06,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 1111 states, 1094 states have (on average 1.8272394881170018) internal successors, (1999), 1110 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:06,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-22 18:41:06,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:06,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:06,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:06,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash -659325864, now seen corresponding path program 1 times [2022-07-22 18:41:06,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:06,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034361859] [2022-07-22 18:41:06,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:06,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:06,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:06,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034361859] [2022-07-22 18:41:06,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034361859] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:06,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:06,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:41:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129245462] [2022-07-22 18:41:06,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:06,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:41:06,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:41:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:41:06,837 INFO L87 Difference]: Start difference. First operand has 1111 states, 1094 states have (on average 1.8272394881170018) internal successors, (1999), 1110 states have internal predecessors, (1999), 0 states have call successors, (0), 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 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:07,755 INFO L93 Difference]: Finished difference Result 1826 states and 3179 transitions. [2022-07-22 18:41:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:41:07,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-22 18:41:07,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:07,774 INFO L225 Difference]: With dead ends: 1826 [2022-07-22 18:41:07,775 INFO L226 Difference]: Without dead ends: 1248 [2022-07-22 18:41:07,781 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 [2022-07-22 18:41:07,785 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 5698 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5698 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:07,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5698 Valid, 1188 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:41:07,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-07-22 18:41:07,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1144. [2022-07-22 18:41:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1128 states have (on average 1.3546099290780143) internal successors, (1528), 1143 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1528 transitions. [2022-07-22 18:41:07,900 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1528 transitions. Word has length 72 [2022-07-22 18:41:07,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:07,901 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1528 transitions. [2022-07-22 18:41:07,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1528 transitions. [2022-07-22 18:41:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-22 18:41:07,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:07,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:07,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 18:41:07,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:07,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:07,908 INFO L85 PathProgramCache]: Analyzing trace with hash -954340830, now seen corresponding path program 1 times [2022-07-22 18:41:07,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:07,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630797760] [2022-07-22 18:41:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:07,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:08,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:08,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630797760] [2022-07-22 18:41:08,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630797760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:08,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:08,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:41:08,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564616257] [2022-07-22 18:41:08,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:08,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:41:08,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:08,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:41:08,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:41:08,058 INFO L87 Difference]: Start difference. First operand 1144 states and 1528 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:08,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:08,578 INFO L93 Difference]: Finished difference Result 1575 states and 2120 transitions. [2022-07-22 18:41:08,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:41:08,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-22 18:41:08,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:08,583 INFO L225 Difference]: With dead ends: 1575 [2022-07-22 18:41:08,583 INFO L226 Difference]: Without dead ends: 1080 [2022-07-22 18:41:08,584 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 [2022-07-22 18:41:08,586 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 3032 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3032 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:08,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3032 Valid, 491 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:08,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-07-22 18:41:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2022-07-22 18:41:08,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1064 states have (on average 1.3665413533834587) internal successors, (1454), 1079 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1454 transitions. [2022-07-22 18:41:08,642 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1454 transitions. Word has length 72 [2022-07-22 18:41:08,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:08,643 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1454 transitions. [2022-07-22 18:41:08,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:08,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1454 transitions. [2022-07-22 18:41:08,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-22 18:41:08,645 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:08,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:08,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 18:41:08,645 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:08,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:08,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1430025351, now seen corresponding path program 1 times [2022-07-22 18:41:08,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:08,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569688377] [2022-07-22 18:41:08,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:08,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:08,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:08,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569688377] [2022-07-22 18:41:08,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569688377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:08,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:08,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:41:08,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350276318] [2022-07-22 18:41:08,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:08,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:41:08,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:08,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:41:08,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:41:08,742 INFO L87 Difference]: Start difference. First operand 1080 states and 1454 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:09,070 INFO L93 Difference]: Finished difference Result 1290 states and 1728 transitions. [2022-07-22 18:41:09,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:41:09,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-22 18:41:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:09,073 INFO L225 Difference]: With dead ends: 1290 [2022-07-22 18:41:09,073 INFO L226 Difference]: Without dead ends: 738 [2022-07-22 18:41:09,074 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 [2022-07-22 18:41:09,075 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 1996 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:09,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 373 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:41:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-07-22 18:41:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 738. [2022-07-22 18:41:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 722 states have (on average 1.373961218836565) internal successors, (992), 737 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 992 transitions. [2022-07-22 18:41:09,098 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 992 transitions. Word has length 72 [2022-07-22 18:41:09,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:09,099 INFO L495 AbstractCegarLoop]: Abstraction has 738 states and 992 transitions. [2022-07-22 18:41:09,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,099 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 992 transitions. [2022-07-22 18:41:09,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 18:41:09,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:09,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:09,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 18:41:09,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:09,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:09,101 INFO L85 PathProgramCache]: Analyzing trace with hash 463143434, now seen corresponding path program 1 times [2022-07-22 18:41:09,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:09,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877861542] [2022-07-22 18:41:09,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:09,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:09,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:09,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:09,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877861542] [2022-07-22 18:41:09,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877861542] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:09,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:09,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:41:09,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671746134] [2022-07-22 18:41:09,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:09,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:41:09,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:09,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:41:09,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:41:09,190 INFO L87 Difference]: Start difference. First operand 738 states and 992 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:09,416 INFO L93 Difference]: Finished difference Result 1046 states and 1413 transitions. [2022-07-22 18:41:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:41:09,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-22 18:41:09,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:09,419 INFO L225 Difference]: With dead ends: 1046 [2022-07-22 18:41:09,419 INFO L226 Difference]: Without dead ends: 637 [2022-07-22 18:41:09,420 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 [2022-07-22 18:41:09,420 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1728 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:09,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 330 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:41:09,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-07-22 18:41:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2022-07-22 18:41:09,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 621 states have (on average 1.3896940418679549) internal successors, (863), 636 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 863 transitions. [2022-07-22 18:41:09,454 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 863 transitions. Word has length 73 [2022-07-22 18:41:09,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:09,454 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 863 transitions. [2022-07-22 18:41:09,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,455 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 863 transitions. [2022-07-22 18:41:09,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-22 18:41:09,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:09,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:09,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 18:41:09,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:09,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash -2053820617, now seen corresponding path program 1 times [2022-07-22 18:41:09,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:09,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734006384] [2022-07-22 18:41:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:09,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:09,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:09,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734006384] [2022-07-22 18:41:09,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734006384] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:09,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:09,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:41:09,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070197452] [2022-07-22 18:41:09,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:09,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:41:09,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:09,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:41:09,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:41:09,509 INFO L87 Difference]: Start difference. First operand 637 states and 863 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:09,695 INFO L93 Difference]: Finished difference Result 901 states and 1220 transitions. [2022-07-22 18:41:09,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:41:09,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-22 18:41:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:09,698 INFO L225 Difference]: With dead ends: 901 [2022-07-22 18:41:09,698 INFO L226 Difference]: Without dead ends: 543 [2022-07-22 18:41:09,699 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 [2022-07-22 18:41:09,700 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 1438 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:09,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 303 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:41:09,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-07-22 18:41:09,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2022-07-22 18:41:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.396584440227704) internal successors, (736), 542 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 736 transitions. [2022-07-22 18:41:09,721 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 736 transitions. Word has length 74 [2022-07-22 18:41:09,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:09,721 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 736 transitions. [2022-07-22 18:41:09,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:09,721 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 736 transitions. [2022-07-22 18:41:09,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-22 18:41:09,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:09,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:09,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 18:41:09,723 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:09,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:09,723 INFO L85 PathProgramCache]: Analyzing trace with hash 892076084, now seen corresponding path program 1 times [2022-07-22 18:41:09,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:09,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245630523] [2022-07-22 18:41:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:09,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:09,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:09,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245630523] [2022-07-22 18:41:09,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245630523] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:09,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:09,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:41:09,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494649096] [2022-07-22 18:41:09,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:09,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:41:09,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:09,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:41:09,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:41:09,865 INFO L87 Difference]: Start difference. First operand 543 states and 736 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:10,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:10,372 INFO L93 Difference]: Finished difference Result 1045 states and 1398 transitions. [2022-07-22 18:41:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 18:41:10,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-22 18:41:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:10,375 INFO L225 Difference]: With dead ends: 1045 [2022-07-22 18:41:10,375 INFO L226 Difference]: Without dead ends: 771 [2022-07-22 18:41:10,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-22 18:41:10,376 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 2642 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:10,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 918 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:41:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2022-07-22 18:41:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 543. [2022-07-22 18:41:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.394686907020873) internal successors, (735), 542 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:10,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 735 transitions. [2022-07-22 18:41:10,403 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 735 transitions. Word has length 75 [2022-07-22 18:41:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:10,404 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 735 transitions. [2022-07-22 18:41:10,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 735 transitions. [2022-07-22 18:41:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-22 18:41:10,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:10,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:10,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 18:41:10,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:10,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:10,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1107897332, now seen corresponding path program 1 times [2022-07-22 18:41:10,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:10,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572306814] [2022-07-22 18:41:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:10,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:10,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:10,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:10,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572306814] [2022-07-22 18:41:10,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572306814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:10,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:10,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:10,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649766774] [2022-07-22 18:41:10,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:10,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:10,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:10,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:10,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:10,488 INFO L87 Difference]: Start difference. First operand 543 states and 735 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:11,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:11,217 INFO L93 Difference]: Finished difference Result 1083 states and 1493 transitions. [2022-07-22 18:41:11,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:11,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-22 18:41:11,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:11,221 INFO L225 Difference]: With dead ends: 1083 [2022-07-22 18:41:11,221 INFO L226 Difference]: Without dead ends: 1078 [2022-07-22 18:41:11,222 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 [2022-07-22 18:41:11,222 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 2203 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:11,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2203 Valid, 1374 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:11,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-07-22 18:41:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 543. [2022-07-22 18:41:11,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.3927893738140418) internal successors, (734), 542 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:11,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 734 transitions. [2022-07-22 18:41:11,254 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 734 transitions. Word has length 75 [2022-07-22 18:41:11,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:11,255 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 734 transitions. [2022-07-22 18:41:11,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:11,255 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 734 transitions. [2022-07-22 18:41:11,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-22 18:41:11,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:11,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:11,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 18:41:11,256 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:11,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:11,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1055548212, now seen corresponding path program 1 times [2022-07-22 18:41:11,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:11,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231490751] [2022-07-22 18:41:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:11,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:11,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:11,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231490751] [2022-07-22 18:41:11,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231490751] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:11,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:11,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:11,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592307919] [2022-07-22 18:41:11,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:11,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:11,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:11,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:11,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:11,360 INFO L87 Difference]: Start difference. First operand 543 states and 734 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:12,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:12,041 INFO L93 Difference]: Finished difference Result 930 states and 1300 transitions. [2022-07-22 18:41:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:12,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-22 18:41:12,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:12,043 INFO L225 Difference]: With dead ends: 930 [2022-07-22 18:41:12,043 INFO L226 Difference]: Without dead ends: 740 [2022-07-22 18:41:12,044 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 [2022-07-22 18:41:12,044 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1810 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:12,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1800 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:12,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-07-22 18:41:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 543. [2022-07-22 18:41:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.3908918406072106) internal successors, (733), 542 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 733 transitions. [2022-07-22 18:41:12,073 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 733 transitions. Word has length 75 [2022-07-22 18:41:12,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:12,074 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 733 transitions. [2022-07-22 18:41:12,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 733 transitions. [2022-07-22 18:41:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:41:12,075 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:12,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:12,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 18:41:12,075 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:12,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:12,076 INFO L85 PathProgramCache]: Analyzing trace with hash -101200913, now seen corresponding path program 1 times [2022-07-22 18:41:12,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:12,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727320249] [2022-07-22 18:41:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:12,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:12,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:12,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:12,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727320249] [2022-07-22 18:41:12,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727320249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:12,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:12,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:12,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762445386] [2022-07-22 18:41:12,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:12,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:12,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:12,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:12,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:12,176 INFO L87 Difference]: Start difference. First operand 543 states and 733 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:12,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:12,920 INFO L93 Difference]: Finished difference Result 1296 states and 1816 transitions. [2022-07-22 18:41:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:12,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-22 18:41:12,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:12,924 INFO L225 Difference]: With dead ends: 1296 [2022-07-22 18:41:12,924 INFO L226 Difference]: Without dead ends: 1126 [2022-07-22 18:41:12,925 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 [2022-07-22 18:41:12,925 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2843 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:12,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 1624 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:12,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-07-22 18:41:12,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 543. [2022-07-22 18:41:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.3870967741935485) internal successors, (731), 542 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:12,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 731 transitions. [2022-07-22 18:41:12,958 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 731 transitions. Word has length 77 [2022-07-22 18:41:12,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:12,958 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 731 transitions. [2022-07-22 18:41:12,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 731 transitions. [2022-07-22 18:41:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:41:12,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:12,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:12,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 18:41:12,960 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:12,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:12,960 INFO L85 PathProgramCache]: Analyzing trace with hash 798728465, now seen corresponding path program 1 times [2022-07-22 18:41:12,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:12,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948270345] [2022-07-22 18:41:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:12,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:13,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:13,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948270345] [2022-07-22 18:41:13,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948270345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:13,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:13,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:13,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304021202] [2022-07-22 18:41:13,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:13,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:13,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:13,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:13,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:13,049 INFO L87 Difference]: Start difference. First operand 543 states and 731 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:13,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:13,787 INFO L93 Difference]: Finished difference Result 1246 states and 1739 transitions. [2022-07-22 18:41:13,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:13,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-22 18:41:13,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:13,790 INFO L225 Difference]: With dead ends: 1246 [2022-07-22 18:41:13,790 INFO L226 Difference]: Without dead ends: 1102 [2022-07-22 18:41:13,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:41:13,791 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1980 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:13,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 1750 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:13,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-07-22 18:41:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 543. [2022-07-22 18:41:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.3833017077798861) internal successors, (729), 542 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) [2022-07-22 18:41:13,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 729 transitions. [2022-07-22 18:41:13,827 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 729 transitions. Word has length 77 [2022-07-22 18:41:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:13,827 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 729 transitions. [2022-07-22 18:41:13,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 729 transitions. [2022-07-22 18:41:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:41:13,828 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:13,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:13,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 18:41:13,829 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1612110043, now seen corresponding path program 1 times [2022-07-22 18:41:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:13,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952456428] [2022-07-22 18:41:13,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:13,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:13,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:13,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:13,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952456428] [2022-07-22 18:41:13,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952456428] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:13,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:13,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 18:41:13,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712284162] [2022-07-22 18:41:13,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:13,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 18:41:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:13,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 18:41:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:41:13,957 INFO L87 Difference]: Start difference. First operand 543 states and 729 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:14,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:14,879 INFO L93 Difference]: Finished difference Result 1181 states and 1653 transitions. [2022-07-22 18:41:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 18:41:14,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-22 18:41:14,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:14,885 INFO L225 Difference]: With dead ends: 1181 [2022-07-22 18:41:14,885 INFO L226 Difference]: Without dead ends: 925 [2022-07-22 18:41:14,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:41:14,886 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 2866 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:14,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2866 Valid, 1914 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:41:14,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-07-22 18:41:14,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 543. [2022-07-22 18:41:14,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.3795066413662238) internal successors, (727), 542 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 727 transitions. [2022-07-22 18:41:14,926 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 727 transitions. Word has length 77 [2022-07-22 18:41:14,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:14,926 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 727 transitions. [2022-07-22 18:41:14,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 727 transitions. [2022-07-22 18:41:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:41:14,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:14,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:14,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 18:41:14,928 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:14,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:14,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1927792199, now seen corresponding path program 1 times [2022-07-22 18:41:14,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:14,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433540334] [2022-07-22 18:41:14,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:14,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:15,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:15,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433540334] [2022-07-22 18:41:15,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433540334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:15,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:15,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:41:15,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690106139] [2022-07-22 18:41:15,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:15,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:41:15,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:15,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:41:15,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:41:15,060 INFO L87 Difference]: Start difference. First operand 543 states and 727 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:16,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:16,966 INFO L93 Difference]: Finished difference Result 2280 states and 3262 transitions. [2022-07-22 18:41:16,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:41:16,967 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-22 18:41:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:16,972 INFO L225 Difference]: With dead ends: 2280 [2022-07-22 18:41:16,973 INFO L226 Difference]: Without dead ends: 2120 [2022-07-22 18:41:16,973 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 [2022-07-22 18:41:16,974 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 4751 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 2898 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4751 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 2898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:16,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4751 Valid, 3460 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 2898 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 18:41:16,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2022-07-22 18:41:17,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 547. [2022-07-22 18:41:17,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3766478342749529) internal successors, (731), 546 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:17,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 731 transitions. [2022-07-22 18:41:17,045 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 731 transitions. Word has length 77 [2022-07-22 18:41:17,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:17,046 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 731 transitions. [2022-07-22 18:41:17,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:17,046 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 731 transitions. [2022-07-22 18:41:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:41:17,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:17,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:17,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 18:41:17,047 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1181439000, now seen corresponding path program 1 times [2022-07-22 18:41:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:17,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843250770] [2022-07-22 18:41:17,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:17,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:17,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:17,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843250770] [2022-07-22 18:41:17,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843250770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:17,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:17,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:17,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125501045] [2022-07-22 18:41:17,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:17,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:17,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:17,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:17,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:17,142 INFO L87 Difference]: Start difference. First operand 547 states and 731 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:17,898 INFO L93 Difference]: Finished difference Result 1244 states and 1731 transitions. [2022-07-22 18:41:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:17,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-22 18:41:17,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:17,902 INFO L225 Difference]: With dead ends: 1244 [2022-07-22 18:41:17,902 INFO L226 Difference]: Without dead ends: 1106 [2022-07-22 18:41:17,902 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 [2022-07-22 18:41:17,903 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 2845 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:17,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2845 Valid, 1521 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-07-22 18:41:17,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 547. [2022-07-22 18:41:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.374764595103578) internal successors, (730), 546 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:17,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 730 transitions. [2022-07-22 18:41:17,958 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 730 transitions. Word has length 77 [2022-07-22 18:41:17,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:17,959 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 730 transitions. [2022-07-22 18:41:17,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:17,959 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 730 transitions. [2022-07-22 18:41:17,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:41:17,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:17,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:17,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 18:41:17,960 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:17,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1913205315, now seen corresponding path program 1 times [2022-07-22 18:41:17,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:17,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164531379] [2022-07-22 18:41:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:17,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:18,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:18,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164531379] [2022-07-22 18:41:18,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164531379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:18,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:18,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:18,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265429955] [2022-07-22 18:41:18,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:18,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:18,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:18,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:18,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:18,038 INFO L87 Difference]: Start difference. First operand 547 states and 730 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:18,788 INFO L93 Difference]: Finished difference Result 1240 states and 1726 transitions. [2022-07-22 18:41:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:18,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-22 18:41:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:18,791 INFO L225 Difference]: With dead ends: 1240 [2022-07-22 18:41:18,791 INFO L226 Difference]: Without dead ends: 1106 [2022-07-22 18:41:18,792 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 [2022-07-22 18:41:18,792 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 2889 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:18,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2889 Valid, 1490 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-07-22 18:41:18,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 547. [2022-07-22 18:41:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3728813559322033) internal successors, (729), 546 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) [2022-07-22 18:41:18,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 729 transitions. [2022-07-22 18:41:18,848 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 729 transitions. Word has length 77 [2022-07-22 18:41:18,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:18,848 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 729 transitions. [2022-07-22 18:41:18,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 729 transitions. [2022-07-22 18:41:18,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:41:18,849 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:18,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:18,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 18:41:18,849 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:18,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:18,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1712553496, now seen corresponding path program 1 times [2022-07-22 18:41:18,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:18,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465328356] [2022-07-22 18:41:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:18,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:18,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:18,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465328356] [2022-07-22 18:41:18,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465328356] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:18,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:18,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:18,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215579489] [2022-07-22 18:41:18,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:18,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:18,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:18,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:18,941 INFO L87 Difference]: Start difference. First operand 547 states and 729 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:19,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:19,661 INFO L93 Difference]: Finished difference Result 1210 states and 1674 transitions. [2022-07-22 18:41:19,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:19,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-22 18:41:19,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:19,664 INFO L225 Difference]: With dead ends: 1210 [2022-07-22 18:41:19,664 INFO L226 Difference]: Without dead ends: 1082 [2022-07-22 18:41:19,665 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 [2022-07-22 18:41:19,665 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 2083 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:19,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2083 Valid, 1468 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2022-07-22 18:41:19,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 547. [2022-07-22 18:41:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3709981167608287) internal successors, (728), 546 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:19,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 728 transitions. [2022-07-22 18:41:19,731 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 728 transitions. Word has length 77 [2022-07-22 18:41:19,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:19,731 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 728 transitions. [2022-07-22 18:41:19,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:19,732 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 728 transitions. [2022-07-22 18:41:19,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:41:19,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:19,732 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] [2022-07-22 18:41:19,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 18:41:19,733 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:19,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:19,733 INFO L85 PathProgramCache]: Analyzing trace with hash 414494927, now seen corresponding path program 1 times [2022-07-22 18:41:19,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:19,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951558071] [2022-07-22 18:41:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:19,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:19,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:19,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951558071] [2022-07-22 18:41:19,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951558071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:19,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:19,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:19,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549093982] [2022-07-22 18:41:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:19,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:19,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:19,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:19,805 INFO L87 Difference]: Start difference. First operand 547 states and 728 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:20,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:20,586 INFO L93 Difference]: Finished difference Result 1277 states and 1780 transitions. [2022-07-22 18:41:20,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:20,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-22 18:41:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:20,589 INFO L225 Difference]: With dead ends: 1277 [2022-07-22 18:41:20,589 INFO L226 Difference]: Without dead ends: 1126 [2022-07-22 18:41:20,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-22 18:41:20,590 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 2688 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:20,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 1738 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:20,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-07-22 18:41:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 547. [2022-07-22 18:41:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.369114877589454) internal successors, (727), 546 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 727 transitions. [2022-07-22 18:41:20,651 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 727 transitions. Word has length 77 [2022-07-22 18:41:20,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:20,651 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 727 transitions. [2022-07-22 18:41:20,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:20,651 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 727 transitions. [2022-07-22 18:41:20,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 18:41:20,652 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:20,652 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] [2022-07-22 18:41:20,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 18:41:20,653 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:20,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:20,653 INFO L85 PathProgramCache]: Analyzing trace with hash -464299805, now seen corresponding path program 1 times [2022-07-22 18:41:20,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:20,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13624391] [2022-07-22 18:41:20,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:20,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:20,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:20,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13624391] [2022-07-22 18:41:20,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13624391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:20,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:20,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:20,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681282216] [2022-07-22 18:41:20,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:20,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:20,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:20,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:20,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:20,719 INFO L87 Difference]: Start difference. First operand 547 states and 727 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:21,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:21,437 INFO L93 Difference]: Finished difference Result 1213 states and 1675 transitions. [2022-07-22 18:41:21,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:21,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-22 18:41:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:21,440 INFO L225 Difference]: With dead ends: 1213 [2022-07-22 18:41:21,440 INFO L226 Difference]: Without dead ends: 1082 [2022-07-22 18:41:21,441 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 [2022-07-22 18:41:21,441 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 1447 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:21,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1464 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:41:21,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2022-07-22 18:41:21,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 547. [2022-07-22 18:41:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3672316384180792) internal successors, (726), 546 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 726 transitions. [2022-07-22 18:41:21,503 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 726 transitions. Word has length 78 [2022-07-22 18:41:21,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:21,503 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 726 transitions. [2022-07-22 18:41:21,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 726 transitions. [2022-07-22 18:41:21,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 18:41:21,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:21,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:21,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 18:41:21,506 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:21,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:21,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1048519876, now seen corresponding path program 1 times [2022-07-22 18:41:21,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:21,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049459150] [2022-07-22 18:41:21,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:21,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:21,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:21,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:21,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049459150] [2022-07-22 18:41:21,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049459150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:21,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:21,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:21,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440610164] [2022-07-22 18:41:21,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:21,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:21,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:21,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:21,575 INFO L87 Difference]: Start difference. First operand 547 states and 726 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:22,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:22,414 INFO L93 Difference]: Finished difference Result 1286 states and 1787 transitions. [2022-07-22 18:41:22,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:22,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-22 18:41:22,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:22,417 INFO L225 Difference]: With dead ends: 1286 [2022-07-22 18:41:22,417 INFO L226 Difference]: Without dead ends: 1126 [2022-07-22 18:41:22,418 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 [2022-07-22 18:41:22,418 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1729 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:22,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 2104 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:22,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-07-22 18:41:22,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 543. [2022-07-22 18:41:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.3681214421252372) internal successors, (721), 542 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 721 transitions. [2022-07-22 18:41:22,483 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 721 transitions. Word has length 78 [2022-07-22 18:41:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:22,483 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 721 transitions. [2022-07-22 18:41:22,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:22,483 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 721 transitions. [2022-07-22 18:41:22,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:22,484 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:22,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:22,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 18:41:22,485 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:22,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:22,485 INFO L85 PathProgramCache]: Analyzing trace with hash -738667670, now seen corresponding path program 1 times [2022-07-22 18:41:22,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:22,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461560039] [2022-07-22 18:41:22,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:22,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:22,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:22,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:22,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461560039] [2022-07-22 18:41:22,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461560039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:22,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:22,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:22,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481393633] [2022-07-22 18:41:22,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:22,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:22,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:22,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:22,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:22,559 INFO L87 Difference]: Start difference. First operand 543 states and 721 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:23,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:23,364 INFO L93 Difference]: Finished difference Result 1252 states and 1734 transitions. [2022-07-22 18:41:23,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:23,369 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:23,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:23,372 INFO L225 Difference]: With dead ends: 1252 [2022-07-22 18:41:23,372 INFO L226 Difference]: Without dead ends: 1102 [2022-07-22 18:41:23,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:41:23,375 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 2122 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:23,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2122 Valid, 1798 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:23,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-07-22 18:41:23,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 543. [2022-07-22 18:41:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.364326375711575) internal successors, (719), 542 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 719 transitions. [2022-07-22 18:41:23,453 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 719 transitions. Word has length 79 [2022-07-22 18:41:23,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:23,453 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 719 transitions. [2022-07-22 18:41:23,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 719 transitions. [2022-07-22 18:41:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:23,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:23,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:23,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 18:41:23,454 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:23,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash 749865809, now seen corresponding path program 1 times [2022-07-22 18:41:23,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:23,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924426962] [2022-07-22 18:41:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:23,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:23,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:23,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924426962] [2022-07-22 18:41:23,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924426962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:23,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:23,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139047428] [2022-07-22 18:41:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:23,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:23,554 INFO L87 Difference]: Start difference. First operand 543 states and 719 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:24,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:24,443 INFO L93 Difference]: Finished difference Result 1212 states and 1671 transitions. [2022-07-22 18:41:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:24,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:24,446 INFO L225 Difference]: With dead ends: 1212 [2022-07-22 18:41:24,446 INFO L226 Difference]: Without dead ends: 1078 [2022-07-22 18:41:24,447 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 [2022-07-22 18:41:24,447 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2317 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:24,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 1922 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:41:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-07-22 18:41:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 543. [2022-07-22 18:41:24,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.3605313092979128) internal successors, (717), 542 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 717 transitions. [2022-07-22 18:41:24,516 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 717 transitions. Word has length 79 [2022-07-22 18:41:24,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:24,517 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 717 transitions. [2022-07-22 18:41:24,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:24,517 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 717 transitions. [2022-07-22 18:41:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:24,517 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:24,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:24,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 18:41:24,518 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:24,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:24,518 INFO L85 PathProgramCache]: Analyzing trace with hash 261207811, now seen corresponding path program 1 times [2022-07-22 18:41:24,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:24,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015735209] [2022-07-22 18:41:24,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:24,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:24,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:24,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015735209] [2022-07-22 18:41:24,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015735209] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:24,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:24,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:41:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725503369] [2022-07-22 18:41:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:24,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:41:24,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:24,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:41:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:41:24,646 INFO L87 Difference]: Start difference. First operand 543 states and 717 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:26,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:26,705 INFO L93 Difference]: Finished difference Result 2340 states and 3323 transitions. [2022-07-22 18:41:26,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:41:26,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:26,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:26,715 INFO L225 Difference]: With dead ends: 2340 [2022-07-22 18:41:26,715 INFO L226 Difference]: Without dead ends: 2150 [2022-07-22 18:41:26,716 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 [2022-07-22 18:41:26,716 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 4205 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 2856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:26,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4205 Valid, 3074 Invalid, 2856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 18:41:26,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2022-07-22 18:41:26,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 551. [2022-07-22 18:41:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.355140186915888) internal successors, (725), 550 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:26,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 725 transitions. [2022-07-22 18:41:26,803 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 725 transitions. Word has length 79 [2022-07-22 18:41:26,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:26,804 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 725 transitions. [2022-07-22 18:41:26,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 725 transitions. [2022-07-22 18:41:26,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:26,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:26,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:26,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 18:41:26,805 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:26,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:26,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1928072588, now seen corresponding path program 1 times [2022-07-22 18:41:26,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:26,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859356210] [2022-07-22 18:41:26,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:26,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:26,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:26,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859356210] [2022-07-22 18:41:26,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859356210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:26,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:26,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:26,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493022469] [2022-07-22 18:41:26,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:26,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:26,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:26,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:26,897 INFO L87 Difference]: Start difference. First operand 551 states and 725 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:27,776 INFO L93 Difference]: Finished difference Result 1127 states and 1536 transitions. [2022-07-22 18:41:27,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:27,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:27,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:27,779 INFO L225 Difference]: With dead ends: 1127 [2022-07-22 18:41:27,779 INFO L226 Difference]: Without dead ends: 1110 [2022-07-22 18:41:27,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:41:27,780 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 1785 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:27,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1785 Valid, 2051 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-07-22 18:41:27,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 551. [2022-07-22 18:41:27,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3514018691588785) internal successors, (723), 550 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 723 transitions. [2022-07-22 18:41:27,860 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 723 transitions. Word has length 79 [2022-07-22 18:41:27,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:27,860 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 723 transitions. [2022-07-22 18:41:27,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:27,860 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 723 transitions. [2022-07-22 18:41:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:27,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:27,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:27,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 18:41:27,862 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:27,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:27,862 INFO L85 PathProgramCache]: Analyzing trace with hash -439539109, now seen corresponding path program 1 times [2022-07-22 18:41:27,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:27,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483557031] [2022-07-22 18:41:27,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:27,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:27,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:27,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483557031] [2022-07-22 18:41:27,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483557031] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:27,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:27,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:27,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622719830] [2022-07-22 18:41:27,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:27,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:27,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:27,941 INFO L87 Difference]: Start difference. First operand 551 states and 723 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:28,854 INFO L93 Difference]: Finished difference Result 1091 states and 1480 transitions. [2022-07-22 18:41:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:28,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:28,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:28,857 INFO L225 Difference]: With dead ends: 1091 [2022-07-22 18:41:28,857 INFO L226 Difference]: Without dead ends: 1086 [2022-07-22 18:41:28,857 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 [2022-07-22 18:41:28,858 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2289 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2289 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:28,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2289 Valid, 1971 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:28,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-07-22 18:41:28,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 551. [2022-07-22 18:41:28,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.347663551401869) internal successors, (721), 550 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 721 transitions. [2022-07-22 18:41:28,939 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 721 transitions. Word has length 79 [2022-07-22 18:41:28,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:28,939 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 721 transitions. [2022-07-22 18:41:28,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 721 transitions. [2022-07-22 18:41:28,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:28,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:28,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:28,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 18:41:28,941 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:28,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:28,941 INFO L85 PathProgramCache]: Analyzing trace with hash -845454890, now seen corresponding path program 1 times [2022-07-22 18:41:28,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:28,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925775074] [2022-07-22 18:41:28,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:28,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:29,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:29,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:29,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925775074] [2022-07-22 18:41:29,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925775074] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:29,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:29,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:29,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277205911] [2022-07-22 18:41:29,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:29,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:29,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:29,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:29,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:29,008 INFO L87 Difference]: Start difference. First operand 551 states and 721 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:29,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:29,837 INFO L93 Difference]: Finished difference Result 1091 states and 1478 transitions. [2022-07-22 18:41:29,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:29,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:29,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:29,841 INFO L225 Difference]: With dead ends: 1091 [2022-07-22 18:41:29,841 INFO L226 Difference]: Without dead ends: 1086 [2022-07-22 18:41:29,842 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 [2022-07-22 18:41:29,843 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 1891 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:29,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 1708 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-07-22 18:41:29,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 551. [2022-07-22 18:41:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3439252336448597) internal successors, (719), 550 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 719 transitions. [2022-07-22 18:41:29,944 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 719 transitions. Word has length 79 [2022-07-22 18:41:29,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:29,944 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 719 transitions. [2022-07-22 18:41:29,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:29,944 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 719 transitions. [2022-07-22 18:41:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:29,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:29,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:29,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-22 18:41:29,946 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:29,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash 88191580, now seen corresponding path program 1 times [2022-07-22 18:41:29,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:29,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467557716] [2022-07-22 18:41:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:29,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:30,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:30,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467557716] [2022-07-22 18:41:30,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467557716] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:30,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:30,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:30,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433941642] [2022-07-22 18:41:30,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:30,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:30,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:30,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:30,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:30,023 INFO L87 Difference]: Start difference. First operand 551 states and 719 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:30,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:30,957 INFO L93 Difference]: Finished difference Result 1216 states and 1664 transitions. [2022-07-22 18:41:30,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:30,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:30,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:30,960 INFO L225 Difference]: With dead ends: 1216 [2022-07-22 18:41:30,960 INFO L226 Difference]: Without dead ends: 1086 [2022-07-22 18:41:30,960 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 [2022-07-22 18:41:30,960 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2279 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:30,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 1974 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:41:30,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-07-22 18:41:31,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 551. [2022-07-22 18:41:31,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3401869158878505) internal successors, (717), 550 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:31,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 717 transitions. [2022-07-22 18:41:31,046 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 717 transitions. Word has length 79 [2022-07-22 18:41:31,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:31,046 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 717 transitions. [2022-07-22 18:41:31,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 717 transitions. [2022-07-22 18:41:31,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:31,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:31,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:31,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-22 18:41:31,047 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:31,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:31,048 INFO L85 PathProgramCache]: Analyzing trace with hash -274145819, now seen corresponding path program 1 times [2022-07-22 18:41:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:31,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647977944] [2022-07-22 18:41:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:31,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:31,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:31,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647977944] [2022-07-22 18:41:31,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647977944] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:31,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:31,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:31,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778149838] [2022-07-22 18:41:31,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:31,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:31,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:31,125 INFO L87 Difference]: Start difference. First operand 551 states and 717 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:31,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:31,971 INFO L93 Difference]: Finished difference Result 1253 states and 1715 transitions. [2022-07-22 18:41:31,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:31,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:31,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:31,973 INFO L225 Difference]: With dead ends: 1253 [2022-07-22 18:41:31,973 INFO L226 Difference]: Without dead ends: 1110 [2022-07-22 18:41:31,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:41:31,974 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 2205 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:31,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 1832 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:31,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-07-22 18:41:32,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 551. [2022-07-22 18:41:32,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3383177570093459) internal successors, (716), 550 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:32,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 716 transitions. [2022-07-22 18:41:32,064 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 716 transitions. Word has length 79 [2022-07-22 18:41:32,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:32,064 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 716 transitions. [2022-07-22 18:41:32,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:32,064 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 716 transitions. [2022-07-22 18:41:32,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:32,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:32,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:32,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-22 18:41:32,066 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:32,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:32,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1678498669, now seen corresponding path program 1 times [2022-07-22 18:41:32,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:32,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522041123] [2022-07-22 18:41:32,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:32,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:32,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522041123] [2022-07-22 18:41:32,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522041123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:32,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:32,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:41:32,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342784144] [2022-07-22 18:41:32,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:32,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:41:32,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:32,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:41:32,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:41:32,208 INFO L87 Difference]: Start difference. First operand 551 states and 716 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:33,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:33,982 INFO L93 Difference]: Finished difference Result 1862 states and 2611 transitions. [2022-07-22 18:41:33,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:41:33,982 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:33,984 INFO L225 Difference]: With dead ends: 1862 [2022-07-22 18:41:33,984 INFO L226 Difference]: Without dead ends: 1731 [2022-07-22 18:41:33,985 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 [2022-07-22 18:41:33,985 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 4626 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4626 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:33,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4626 Valid, 1904 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:41:33,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-07-22 18:41:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 555. [2022-07-22 18:41:34,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3358070500927643) internal successors, (720), 554 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 720 transitions. [2022-07-22 18:41:34,106 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 720 transitions. Word has length 79 [2022-07-22 18:41:34,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:34,106 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 720 transitions. [2022-07-22 18:41:34,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 720 transitions. [2022-07-22 18:41:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:34,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:34,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:34,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-22 18:41:34,108 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash 861543357, now seen corresponding path program 1 times [2022-07-22 18:41:34,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:34,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358007729] [2022-07-22 18:41:34,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:34,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:34,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:34,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358007729] [2022-07-22 18:41:34,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358007729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:34,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:34,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:34,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819448548] [2022-07-22 18:41:34,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:34,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:34,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:34,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:34,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:34,200 INFO L87 Difference]: Start difference. First operand 555 states and 720 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:35,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:35,186 INFO L93 Difference]: Finished difference Result 1214 states and 1658 transitions. [2022-07-22 18:41:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:35,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:35,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:35,188 INFO L225 Difference]: With dead ends: 1214 [2022-07-22 18:41:35,188 INFO L226 Difference]: Without dead ends: 1086 [2022-07-22 18:41:35,188 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 [2022-07-22 18:41:35,189 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 2256 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:35,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 2006 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:35,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-07-22 18:41:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 555. [2022-07-22 18:41:35,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3339517625231911) internal successors, (719), 554 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:35,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 719 transitions. [2022-07-22 18:41:35,292 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 719 transitions. Word has length 79 [2022-07-22 18:41:35,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:35,292 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 719 transitions. [2022-07-22 18:41:35,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 719 transitions. [2022-07-22 18:41:35,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:35,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:35,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:35,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-22 18:41:35,293 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:35,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:35,294 INFO L85 PathProgramCache]: Analyzing trace with hash 556086602, now seen corresponding path program 1 times [2022-07-22 18:41:35,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:35,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104199593] [2022-07-22 18:41:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:35,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:35,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:35,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104199593] [2022-07-22 18:41:35,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104199593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:35,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:35,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:41:35,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379446059] [2022-07-22 18:41:35,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:35,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:41:35,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:41:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:41:35,418 INFO L87 Difference]: Start difference. First operand 555 states and 719 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:37,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:37,488 INFO L93 Difference]: Finished difference Result 2064 states and 2907 transitions. [2022-07-22 18:41:37,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:41:37,488 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:37,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:37,491 INFO L225 Difference]: With dead ends: 2064 [2022-07-22 18:41:37,491 INFO L226 Difference]: Without dead ends: 1926 [2022-07-22 18:41:37,492 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 [2022-07-22 18:41:37,492 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 4837 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4837 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:37,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4837 Valid, 2404 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:41:37,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2022-07-22 18:41:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 559. [2022-07-22 18:41:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 543 states have (on average 1.3314917127071824) internal successors, (723), 558 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 723 transitions. [2022-07-22 18:41:37,611 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 723 transitions. Word has length 79 [2022-07-22 18:41:37,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:37,611 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 723 transitions. [2022-07-22 18:41:37,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:37,611 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 723 transitions. [2022-07-22 18:41:37,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:41:37,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:37,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:37,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-22 18:41:37,612 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:37,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash -403243016, now seen corresponding path program 1 times [2022-07-22 18:41:37,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:37,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396529593] [2022-07-22 18:41:37,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:37,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:37,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396529593] [2022-07-22 18:41:37,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396529593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:37,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:37,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:41:37,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839679054] [2022-07-22 18:41:37,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:37,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:41:37,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:37,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:41:37,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:41:37,730 INFO L87 Difference]: Start difference. First operand 559 states and 723 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:39,659 INFO L93 Difference]: Finished difference Result 1860 states and 2607 transitions. [2022-07-22 18:41:39,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:41:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-22 18:41:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:39,662 INFO L225 Difference]: With dead ends: 1860 [2022-07-22 18:41:39,662 INFO L226 Difference]: Without dead ends: 1732 [2022-07-22 18:41:39,663 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 [2022-07-22 18:41:39,663 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 4682 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4682 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:39,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4682 Valid, 1867 Invalid, 2026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:41:39,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2022-07-22 18:41:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 563. [2022-07-22 18:41:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 547 states have (on average 1.3290676416819014) internal successors, (727), 562 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 727 transitions. [2022-07-22 18:41:39,786 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 727 transitions. Word has length 79 [2022-07-22 18:41:39,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:39,786 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 727 transitions. [2022-07-22 18:41:39,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 727 transitions. [2022-07-22 18:41:39,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 18:41:39,787 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:39,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:39,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-22 18:41:39,787 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:39,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:39,788 INFO L85 PathProgramCache]: Analyzing trace with hash -716120998, now seen corresponding path program 1 times [2022-07-22 18:41:39,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:39,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014424565] [2022-07-22 18:41:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:39,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:39,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:39,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014424565] [2022-07-22 18:41:39,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014424565] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:39,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:39,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:39,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260936247] [2022-07-22 18:41:39,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:39,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:39,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:39,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:39,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:39,857 INFO L87 Difference]: Start difference. First operand 563 states and 727 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:40,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:40,852 INFO L93 Difference]: Finished difference Result 1332 states and 1820 transitions. [2022-07-22 18:41:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:40,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-22 18:41:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:40,854 INFO L225 Difference]: With dead ends: 1332 [2022-07-22 18:41:40,854 INFO L226 Difference]: Without dead ends: 1142 [2022-07-22 18:41:40,854 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 [2022-07-22 18:41:40,855 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1692 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:40,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 2092 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:40,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-07-22 18:41:40,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 555. [2022-07-22 18:41:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3302411873840445) internal successors, (717), 554 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:40,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 717 transitions. [2022-07-22 18:41:40,978 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 717 transitions. Word has length 80 [2022-07-22 18:41:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:40,979 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 717 transitions. [2022-07-22 18:41:40,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:40,979 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 717 transitions. [2022-07-22 18:41:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 18:41:40,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:40,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:40,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-22 18:41:40,980 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:40,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:40,981 INFO L85 PathProgramCache]: Analyzing trace with hash 724648618, now seen corresponding path program 1 times [2022-07-22 18:41:40,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:40,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609423387] [2022-07-22 18:41:40,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:40,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:41,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:41,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609423387] [2022-07-22 18:41:41,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609423387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:41,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:41,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:41,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820276199] [2022-07-22 18:41:41,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:41,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:41,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:41,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:41,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:41,047 INFO L87 Difference]: Start difference. First operand 555 states and 717 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:42,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:42,018 INFO L93 Difference]: Finished difference Result 1213 states and 1653 transitions. [2022-07-22 18:41:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:42,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-22 18:41:42,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:42,020 INFO L225 Difference]: With dead ends: 1213 [2022-07-22 18:41:42,020 INFO L226 Difference]: Without dead ends: 1082 [2022-07-22 18:41:42,021 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 [2022-07-22 18:41:42,021 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 1838 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:42,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 1754 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:42,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2022-07-22 18:41:42,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 551. [2022-07-22 18:41:42,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.330841121495327) internal successors, (712), 550 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 712 transitions. [2022-07-22 18:41:42,145 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 712 transitions. Word has length 80 [2022-07-22 18:41:42,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:42,146 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 712 transitions. [2022-07-22 18:41:42,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:42,146 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 712 transitions. [2022-07-22 18:41:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 18:41:42,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:42,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:42,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-22 18:41:42,147 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:42,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:42,147 INFO L85 PathProgramCache]: Analyzing trace with hash 141903750, now seen corresponding path program 1 times [2022-07-22 18:41:42,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:42,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703779071] [2022-07-22 18:41:42,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:42,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:42,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:42,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703779071] [2022-07-22 18:41:42,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703779071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:42,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:42,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:42,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974259638] [2022-07-22 18:41:42,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:42,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:42,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:42,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:42,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:42,221 INFO L87 Difference]: Start difference. First operand 551 states and 712 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:43,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:43,203 INFO L93 Difference]: Finished difference Result 1210 states and 1649 transitions. [2022-07-22 18:41:43,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:43,204 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-22 18:41:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:43,206 INFO L225 Difference]: With dead ends: 1210 [2022-07-22 18:41:43,206 INFO L226 Difference]: Without dead ends: 1082 [2022-07-22 18:41:43,206 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 [2022-07-22 18:41:43,206 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 2432 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:43,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2432 Valid, 1754 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2022-07-22 18:41:43,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 547. [2022-07-22 18:41:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3314500941619585) internal successors, (707), 546 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 707 transitions. [2022-07-22 18:41:43,332 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 707 transitions. Word has length 80 [2022-07-22 18:41:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:43,332 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 707 transitions. [2022-07-22 18:41:43,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 707 transitions. [2022-07-22 18:41:43,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 18:41:43,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:43,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:43,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-22 18:41:43,333 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:43,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:43,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1565003779, now seen corresponding path program 1 times [2022-07-22 18:41:43,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:43,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756738423] [2022-07-22 18:41:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:43,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:43,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:43,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:43,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756738423] [2022-07-22 18:41:43,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756738423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:43,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:43,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:43,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961679715] [2022-07-22 18:41:43,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:43,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:43,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:43,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:43,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:43,410 INFO L87 Difference]: Start difference. First operand 547 states and 707 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:44,441 INFO L93 Difference]: Finished difference Result 1208 states and 1646 transitions. [2022-07-22 18:41:44,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:44,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-22 18:41:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:44,443 INFO L225 Difference]: With dead ends: 1208 [2022-07-22 18:41:44,443 INFO L226 Difference]: Without dead ends: 1081 [2022-07-22 18:41:44,444 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 [2022-07-22 18:41:44,444 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 2233 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2233 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:44,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2233 Valid, 2023 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-07-22 18:41:44,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 546. [2022-07-22 18:41:44,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 530 states have (on average 1.330188679245283) internal successors, (705), 545 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:44,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 705 transitions. [2022-07-22 18:41:44,572 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 705 transitions. Word has length 80 [2022-07-22 18:41:44,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:44,573 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 705 transitions. [2022-07-22 18:41:44,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:44,573 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 705 transitions. [2022-07-22 18:41:44,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 18:41:44,573 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:44,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:44,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-22 18:41:44,574 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:44,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:44,574 INFO L85 PathProgramCache]: Analyzing trace with hash -213640481, now seen corresponding path program 1 times [2022-07-22 18:41:44,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:44,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482630770] [2022-07-22 18:41:44,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:44,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:44,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:44,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:44,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482630770] [2022-07-22 18:41:44,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482630770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:44,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:44,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:44,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757544533] [2022-07-22 18:41:44,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:44,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:44,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:44,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:44,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:44,641 INFO L87 Difference]: Start difference. First operand 546 states and 705 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:45,636 INFO L93 Difference]: Finished difference Result 1239 states and 1691 transitions. [2022-07-22 18:41:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:45,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-22 18:41:45,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:45,637 INFO L225 Difference]: With dead ends: 1239 [2022-07-22 18:41:45,638 INFO L226 Difference]: Without dead ends: 1101 [2022-07-22 18:41:45,638 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 [2022-07-22 18:41:45,638 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 1627 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:45,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 2095 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:45,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2022-07-22 18:41:45,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 542. [2022-07-22 18:41:45,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 526 states have (on average 1.3307984790874525) internal successors, (700), 541 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 700 transitions. [2022-07-22 18:41:45,767 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 700 transitions. Word has length 80 [2022-07-22 18:41:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:45,767 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 700 transitions. [2022-07-22 18:41:45,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 700 transitions. [2022-07-22 18:41:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 18:41:45,768 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:45,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:45,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-22 18:41:45,769 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:45,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:45,769 INFO L85 PathProgramCache]: Analyzing trace with hash 484129246, now seen corresponding path program 1 times [2022-07-22 18:41:45,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:45,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734986516] [2022-07-22 18:41:45,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:45,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:46,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:46,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734986516] [2022-07-22 18:41:46,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734986516] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:46,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:46,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:41:46,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817731626] [2022-07-22 18:41:46,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:46,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:41:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:46,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:41:46,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:41:46,003 INFO L87 Difference]: Start difference. First operand 542 states and 700 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:47,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:47,412 INFO L93 Difference]: Finished difference Result 1363 states and 1787 transitions. [2022-07-22 18:41:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:47,412 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-22 18:41:47,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:47,414 INFO L225 Difference]: With dead ends: 1363 [2022-07-22 18:41:47,414 INFO L226 Difference]: Without dead ends: 1231 [2022-07-22 18:41:47,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-07-22 18:41:47,415 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 2590 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 4021 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:47,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2590 Valid, 4021 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:41:47,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2022-07-22 18:41:47,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 532. [2022-07-22 18:41:47,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 517 states have (on average 1.3249516441005802) internal successors, (685), 531 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:47,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 685 transitions. [2022-07-22 18:41:47,566 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 685 transitions. Word has length 81 [2022-07-22 18:41:47,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:47,566 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 685 transitions. [2022-07-22 18:41:47,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:47,566 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 685 transitions. [2022-07-22 18:41:47,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 18:41:47,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:47,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:47,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-22 18:41:47,567 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:47,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:47,567 INFO L85 PathProgramCache]: Analyzing trace with hash 852624389, now seen corresponding path program 1 times [2022-07-22 18:41:47,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:47,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47229578] [2022-07-22 18:41:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:47,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:47,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:47,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47229578] [2022-07-22 18:41:47,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47229578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:47,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:47,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:41:47,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278564890] [2022-07-22 18:41:47,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:47,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:41:47,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:47,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:41:47,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:41:47,773 INFO L87 Difference]: Start difference. First operand 532 states and 685 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:49,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:49,007 INFO L93 Difference]: Finished difference Result 1533 states and 2124 transitions. [2022-07-22 18:41:49,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:41:49,008 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-22 18:41:49,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:49,010 INFO L225 Difference]: With dead ends: 1533 [2022-07-22 18:41:49,010 INFO L226 Difference]: Without dead ends: 1353 [2022-07-22 18:41:49,011 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 [2022-07-22 18:41:49,011 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 2171 mSDsluCounter, 3686 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 4622 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:49,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 4622 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:41:49,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-07-22 18:41:49,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 478. [2022-07-22 18:41:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 466 states have (on average 1.3175965665236051) internal successors, (614), 477 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:49,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 614 transitions. [2022-07-22 18:41:49,171 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 614 transitions. Word has length 81 [2022-07-22 18:41:49,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:49,171 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 614 transitions. [2022-07-22 18:41:49,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:49,171 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 614 transitions. [2022-07-22 18:41:49,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 18:41:49,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:49,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:49,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-22 18:41:49,172 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:49,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:49,173 INFO L85 PathProgramCache]: Analyzing trace with hash 295761583, now seen corresponding path program 1 times [2022-07-22 18:41:49,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:49,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34047668] [2022-07-22 18:41:49,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:49,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:49,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:49,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:49,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34047668] [2022-07-22 18:41:49,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34047668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:49,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:49,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-22 18:41:49,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259195030] [2022-07-22 18:41:49,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:49,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-22 18:41:49,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:49,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-22 18:41:49,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-07-22 18:41:49,577 INFO L87 Difference]: Start difference. First operand 478 states and 614 transitions. Second operand has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:51,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:51,163 INFO L93 Difference]: Finished difference Result 991 states and 1334 transitions. [2022-07-22 18:41:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 18:41:51,163 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-22 18:41:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:51,165 INFO L225 Difference]: With dead ends: 991 [2022-07-22 18:41:51,165 INFO L226 Difference]: Without dead ends: 806 [2022-07-22 18:41:51,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2022-07-22 18:41:51,166 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2422 mSDsluCounter, 4806 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2422 SdHoareTripleChecker+Valid, 5415 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:51,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2422 Valid, 5415 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:41:51,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-07-22 18:41:51,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 460. [2022-07-22 18:41:51,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 448 states have (on average 1.3125) internal successors, (588), 459 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:51,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 588 transitions. [2022-07-22 18:41:51,325 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 588 transitions. Word has length 81 [2022-07-22 18:41:51,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:51,325 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 588 transitions. [2022-07-22 18:41:51,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:51,325 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 588 transitions. [2022-07-22 18:41:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 18:41:51,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:51,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:51,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-22 18:41:51,326 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:51,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:51,327 INFO L85 PathProgramCache]: Analyzing trace with hash 487027968, now seen corresponding path program 1 times [2022-07-22 18:41:51,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:51,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956834406] [2022-07-22 18:41:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:51,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:51,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:51,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956834406] [2022-07-22 18:41:51,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956834406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:51,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:51,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:41:51,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634414535] [2022-07-22 18:41:51,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:51,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:41:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:51,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:41:51,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:41:51,551 INFO L87 Difference]: Start difference. First operand 460 states and 588 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:52,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:52,998 INFO L93 Difference]: Finished difference Result 1222 states and 1608 transitions. [2022-07-22 18:41:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 18:41:52,998 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-22 18:41:52,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:53,000 INFO L225 Difference]: With dead ends: 1222 [2022-07-22 18:41:53,000 INFO L226 Difference]: Without dead ends: 1092 [2022-07-22 18:41:53,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:41:53,000 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 2279 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 4041 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:53,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 4041 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:41:53,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-07-22 18:41:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 456. [2022-07-22 18:41:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 445 states have (on average 1.3101123595505617) internal successors, (583), 455 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 583 transitions. [2022-07-22 18:41:53,158 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 583 transitions. Word has length 81 [2022-07-22 18:41:53,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:53,158 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 583 transitions. [2022-07-22 18:41:53,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:53,158 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 583 transitions. [2022-07-22 18:41:53,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 18:41:53,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:53,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:53,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-22 18:41:53,159 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:53,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1444511641, now seen corresponding path program 1 times [2022-07-22 18:41:53,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:53,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042267135] [2022-07-22 18:41:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:53,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:53,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:53,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042267135] [2022-07-22 18:41:53,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042267135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:53,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:53,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:41:53,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694393117] [2022-07-22 18:41:53,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:53,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 18:41:53,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:53,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 18:41:53,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:41:53,331 INFO L87 Difference]: Start difference. First operand 456 states and 583 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:54,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:54,245 INFO L93 Difference]: Finished difference Result 1069 states and 1445 transitions. [2022-07-22 18:41:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:54,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-22 18:41:54,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:54,246 INFO L225 Difference]: With dead ends: 1069 [2022-07-22 18:41:54,246 INFO L226 Difference]: Without dead ends: 830 [2022-07-22 18:41:54,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-07-22 18:41:54,247 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 2059 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:54,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 1950 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:41:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-07-22 18:41:54,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 343. [2022-07-22 18:41:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 336 states have (on average 1.3125) internal successors, (441), 342 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:54,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 441 transitions. [2022-07-22 18:41:54,389 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 441 transitions. Word has length 81 [2022-07-22 18:41:54,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:54,389 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 441 transitions. [2022-07-22 18:41:54,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 441 transitions. [2022-07-22 18:41:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 18:41:54,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:54,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:54,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-22 18:41:54,390 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:54,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:54,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2090211926, now seen corresponding path program 1 times [2022-07-22 18:41:54,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:54,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703554878] [2022-07-22 18:41:54,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:54,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:54,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:54,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:54,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703554878] [2022-07-22 18:41:54,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703554878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:54,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:54,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:54,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086869585] [2022-07-22 18:41:54,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:54,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:54,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:54,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:54,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:54,471 INFO L87 Difference]: Start difference. First operand 343 states and 441 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:55,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:55,444 INFO L93 Difference]: Finished difference Result 976 states and 1351 transitions. [2022-07-22 18:41:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:41:55,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-22 18:41:55,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:55,445 INFO L225 Difference]: With dead ends: 976 [2022-07-22 18:41:55,445 INFO L226 Difference]: Without dead ends: 820 [2022-07-22 18:41:55,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:41:55,446 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1133 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:55,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 1500 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:41:55,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-07-22 18:41:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 343. [2022-07-22 18:41:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 336 states have (on average 1.306547619047619) internal successors, (439), 342 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 439 transitions. [2022-07-22 18:41:55,589 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 439 transitions. Word has length 82 [2022-07-22 18:41:55,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:55,589 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 439 transitions. [2022-07-22 18:41:55,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:55,589 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 439 transitions. [2022-07-22 18:41:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 18:41:55,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:55,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:55,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-22 18:41:55,590 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:55,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1292332739, now seen corresponding path program 1 times [2022-07-22 18:41:55,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:55,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657199069] [2022-07-22 18:41:55,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:55,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:55,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:55,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657199069] [2022-07-22 18:41:55,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657199069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:55,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:55,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:41:55,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026968888] [2022-07-22 18:41:55,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:55,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:41:55,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:55,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:41:55,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:41:55,662 INFO L87 Difference]: Start difference. First operand 343 states and 439 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:56,274 INFO L93 Difference]: Finished difference Result 543 states and 709 transitions. [2022-07-22 18:41:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:41:56,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-22 18:41:56,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:56,275 INFO L225 Difference]: With dead ends: 543 [2022-07-22 18:41:56,275 INFO L226 Difference]: Without dead ends: 536 [2022-07-22 18:41:56,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-22 18:41:56,275 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1224 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:56,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 1018 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:41:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-07-22 18:41:56,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 343. [2022-07-22 18:41:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 336 states have (on average 1.3035714285714286) internal successors, (438), 342 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 438 transitions. [2022-07-22 18:41:56,418 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 438 transitions. Word has length 82 [2022-07-22 18:41:56,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:56,418 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 438 transitions. [2022-07-22 18:41:56,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 438 transitions. [2022-07-22 18:41:56,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 18:41:56,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:56,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:56,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-22 18:41:56,419 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:56,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:56,419 INFO L85 PathProgramCache]: Analyzing trace with hash 9426797, now seen corresponding path program 1 times [2022-07-22 18:41:56,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:56,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213246587] [2022-07-22 18:41:56,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:56,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:56,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:56,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213246587] [2022-07-22 18:41:56,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213246587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:56,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:56,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:41:56,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261100176] [2022-07-22 18:41:56,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:56,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:41:56,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:56,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:41:56,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:41:56,655 INFO L87 Difference]: Start difference. First operand 343 states and 438 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:57,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:57,972 INFO L93 Difference]: Finished difference Result 867 states and 1154 transitions. [2022-07-22 18:41:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 18:41:57,972 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-22 18:41:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:57,974 INFO L225 Difference]: With dead ends: 867 [2022-07-22 18:41:57,974 INFO L226 Difference]: Without dead ends: 863 [2022-07-22 18:41:57,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:41:57,974 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 1951 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:57,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1951 Valid, 1993 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:41:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2022-07-22 18:41:58,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 339. [2022-07-22 18:41:58,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 333 states have (on average 1.3033033033033032) internal successors, (434), 338 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:58,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 434 transitions. [2022-07-22 18:41:58,126 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 434 transitions. Word has length 82 [2022-07-22 18:41:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:58,126 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 434 transitions. [2022-07-22 18:41:58,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:58,126 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 434 transitions. [2022-07-22 18:41:58,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 18:41:58,127 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:58,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:58,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-22 18:41:58,127 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:58,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:58,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1017799404, now seen corresponding path program 1 times [2022-07-22 18:41:58,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:58,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51829674] [2022-07-22 18:41:58,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:58,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:58,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:58,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51829674] [2022-07-22 18:41:58,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51829674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:58,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:58,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:41:58,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027634527] [2022-07-22 18:41:58,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:58,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:41:58,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:58,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:41:58,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:41:58,305 INFO L87 Difference]: Start difference. First operand 339 states and 434 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:41:58,933 INFO L93 Difference]: Finished difference Result 659 states and 893 transitions. [2022-07-22 18:41:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:41:58,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-22 18:41:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:41:58,935 INFO L225 Difference]: With dead ends: 659 [2022-07-22 18:41:58,935 INFO L226 Difference]: Without dead ends: 459 [2022-07-22 18:41:58,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:41:58,935 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 794 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:41:58,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1903 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:41:58,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-07-22 18:41:59,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 265. [2022-07-22 18:41:59,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 262 states have (on average 1.3091603053435115) internal successors, (343), 264 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 343 transitions. [2022-07-22 18:41:59,073 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 343 transitions. Word has length 82 [2022-07-22 18:41:59,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:41:59,073 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 343 transitions. [2022-07-22 18:41:59,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:41:59,073 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 343 transitions. [2022-07-22 18:41:59,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 18:41:59,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:41:59,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:41:59,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-22 18:41:59,074 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:41:59,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:41:59,074 INFO L85 PathProgramCache]: Analyzing trace with hash 31269841, now seen corresponding path program 1 times [2022-07-22 18:41:59,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:41:59,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416907913] [2022-07-22 18:41:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:41:59,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:41:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:41:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:41:59,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:41:59,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416907913] [2022-07-22 18:41:59,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416907913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:41:59,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:41:59,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:41:59,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765087540] [2022-07-22 18:41:59,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:41:59,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:41:59,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:41:59,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:41:59,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:41:59,266 INFO L87 Difference]: Start difference. First operand 265 states and 343 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:00,835 INFO L93 Difference]: Finished difference Result 1233 states and 1764 transitions. [2022-07-22 18:42:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 18:42:00,835 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-22 18:42:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:00,837 INFO L225 Difference]: With dead ends: 1233 [2022-07-22 18:42:00,837 INFO L226 Difference]: Without dead ends: 1227 [2022-07-22 18:42:00,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:42:00,838 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1424 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 3454 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:00,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 3454 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:42:00,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2022-07-22 18:42:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 259. [2022-07-22 18:42:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 257 states have (on average 1.3073929961089494) internal successors, (336), 258 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:00,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 336 transitions. [2022-07-22 18:42:00,981 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 336 transitions. Word has length 84 [2022-07-22 18:42:00,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:00,982 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 336 transitions. [2022-07-22 18:42:00,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 336 transitions. [2022-07-22 18:42:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 18:42:00,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:00,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:00,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-22 18:42:00,983 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:00,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1365227640, now seen corresponding path program 1 times [2022-07-22 18:42:00,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:00,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138951400] [2022-07-22 18:42:00,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:00,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:01,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:01,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:01,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138951400] [2022-07-22 18:42:01,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138951400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:01,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:01,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-07-22 18:42:01,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38713838] [2022-07-22 18:42:01,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:01,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-22 18:42:01,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:01,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-22 18:42:01,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:42:01,543 INFO L87 Difference]: Start difference. First operand 259 states and 336 transitions. Second operand has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:03,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:03,301 INFO L93 Difference]: Finished difference Result 300 states and 379 transitions. [2022-07-22 18:42:03,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-22 18:42:03,301 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-22 18:42:03,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:03,302 INFO L225 Difference]: With dead ends: 300 [2022-07-22 18:42:03,302 INFO L226 Difference]: Without dead ends: 292 [2022-07-22 18:42:03,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=376, Invalid=1976, Unknown=0, NotChecked=0, Total=2352 [2022-07-22 18:42:03,303 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 573 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:03,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 2300 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:42:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-07-22 18:42:03,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 273. [2022-07-22 18:42:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 271 states have (on average 1.3025830258302582) internal successors, (353), 272 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:03,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 353 transitions. [2022-07-22 18:42:03,450 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 353 transitions. Word has length 84 [2022-07-22 18:42:03,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:03,450 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 353 transitions. [2022-07-22 18:42:03,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:03,450 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 353 transitions. [2022-07-22 18:42:03,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-22 18:42:03,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:03,451 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] [2022-07-22 18:42:03,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-22 18:42:03,451 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:03,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:03,451 INFO L85 PathProgramCache]: Analyzing trace with hash 601058947, now seen corresponding path program 1 times [2022-07-22 18:42:03,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:03,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45695945] [2022-07-22 18:42:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:03,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:03,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:03,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45695945] [2022-07-22 18:42:03,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45695945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:03,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:03,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:42:03,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617092818] [2022-07-22 18:42:03,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:03,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:42:03,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:03,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:42:03,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:42:03,651 INFO L87 Difference]: Start difference. First operand 273 states and 353 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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) [2022-07-22 18:42:04,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:04,700 INFO L93 Difference]: Finished difference Result 741 states and 1029 transitions. [2022-07-22 18:42:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:42:04,700 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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 [2022-07-22 18:42:04,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:04,701 INFO L225 Difference]: With dead ends: 741 [2022-07-22 18:42:04,701 INFO L226 Difference]: Without dead ends: 726 [2022-07-22 18:42:04,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:42:04,702 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 880 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:04,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 2687 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:42:04,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-07-22 18:42:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 247. [2022-07-22 18:42:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.3089430894308942) internal successors, (322), 246 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 322 transitions. [2022-07-22 18:42:04,844 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 322 transitions. Word has length 85 [2022-07-22 18:42:04,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:04,844 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 322 transitions. [2022-07-22 18:42:04,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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) [2022-07-22 18:42:04,845 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 322 transitions. [2022-07-22 18:42:04,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-22 18:42:04,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:04,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:04,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-22 18:42:04,845 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:04,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:04,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1569723451, now seen corresponding path program 1 times [2022-07-22 18:42:04,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:04,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544510423] [2022-07-22 18:42:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:04,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:04,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:04,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544510423] [2022-07-22 18:42:04,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544510423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:04,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:04,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:42:04,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140586921] [2022-07-22 18:42:04,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:04,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 18:42:04,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:04,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 18:42:04,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:42:04,904 INFO L87 Difference]: Start difference. First operand 247 states and 322 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:06,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:06,227 INFO L93 Difference]: Finished difference Result 1507 states and 2222 transitions. [2022-07-22 18:42:06,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 18:42:06,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-07-22 18:42:06,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:06,232 INFO L225 Difference]: With dead ends: 1507 [2022-07-22 18:42:06,232 INFO L226 Difference]: Without dead ends: 1381 [2022-07-22 18:42:06,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-22 18:42:06,233 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1803 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:06,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 1152 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:42:06,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-07-22 18:42:06,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 371. [2022-07-22 18:42:06,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.3702702702702703) internal successors, (507), 370 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 507 transitions. [2022-07-22 18:42:06,505 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 507 transitions. Word has length 111 [2022-07-22 18:42:06,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:06,505 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 507 transitions. [2022-07-22 18:42:06,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:06,505 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 507 transitions. [2022-07-22 18:42:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-22 18:42:06,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:06,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:06,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-22 18:42:06,506 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:06,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:06,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1004312690, now seen corresponding path program 1 times [2022-07-22 18:42:06,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:06,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576731037] [2022-07-22 18:42:06,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:06,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:06,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:06,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576731037] [2022-07-22 18:42:06,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576731037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:06,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:06,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:42:06,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450365632] [2022-07-22 18:42:06,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:06,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 18:42:06,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:06,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 18:42:06,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:42:06,567 INFO L87 Difference]: Start difference. First operand 371 states and 507 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:07,977 INFO L93 Difference]: Finished difference Result 1747 states and 2568 transitions. [2022-07-22 18:42:07,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 18:42:07,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-22 18:42:07,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:07,979 INFO L225 Difference]: With dead ends: 1747 [2022-07-22 18:42:07,979 INFO L226 Difference]: Without dead ends: 1497 [2022-07-22 18:42:07,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:42:07,981 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1207 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:07,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 891 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:42:07,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-07-22 18:42:08,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 619. [2022-07-22 18:42:08,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 618 states have (on average 1.4223300970873787) internal successors, (879), 618 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:08,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 879 transitions. [2022-07-22 18:42:08,514 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 879 transitions. Word has length 113 [2022-07-22 18:42:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:08,514 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 879 transitions. [2022-07-22 18:42:08,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:08,514 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 879 transitions. [2022-07-22 18:42:08,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-22 18:42:08,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:08,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:08,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-22 18:42:08,515 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:08,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:08,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1515443221, now seen corresponding path program 1 times [2022-07-22 18:42:08,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:08,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770502857] [2022-07-22 18:42:08,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:08,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:08,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:08,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:08,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770502857] [2022-07-22 18:42:08,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770502857] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:08,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:08,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:42:08,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77455504] [2022-07-22 18:42:08,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:08,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:42:08,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:08,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:42:08,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:42:08,547 INFO L87 Difference]: Start difference. First operand 619 states and 879 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:09,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:09,551 INFO L93 Difference]: Finished difference Result 1563 states and 2281 transitions. [2022-07-22 18:42:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:42:09,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-22 18:42:09,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:09,553 INFO L225 Difference]: With dead ends: 1563 [2022-07-22 18:42:09,553 INFO L226 Difference]: Without dead ends: 1065 [2022-07-22 18:42:09,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:42:09,554 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 111 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:09,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 307 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:42:09,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-07-22 18:42:10,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1055. [2022-07-22 18:42:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 1054 states have (on average 1.4278937381404175) internal successors, (1505), 1054 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1505 transitions. [2022-07-22 18:42:10,521 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1505 transitions. Word has length 113 [2022-07-22 18:42:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:10,521 INFO L495 AbstractCegarLoop]: Abstraction has 1055 states and 1505 transitions. [2022-07-22 18:42:10,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1505 transitions. [2022-07-22 18:42:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-22 18:42:10,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:10,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:10,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-22 18:42:10,522 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:10,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:10,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1448949709, now seen corresponding path program 1 times [2022-07-22 18:42:10,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:10,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542633497] [2022-07-22 18:42:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:10,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:10,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:10,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542633497] [2022-07-22 18:42:10,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542633497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:10,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:10,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:42:10,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050440064] [2022-07-22 18:42:10,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:10,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 18:42:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 18:42:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:42:10,620 INFO L87 Difference]: Start difference. First operand 1055 states and 1505 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:11,720 INFO L93 Difference]: Finished difference Result 1991 states and 2879 transitions. [2022-07-22 18:42:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 18:42:11,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-22 18:42:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:11,722 INFO L225 Difference]: With dead ends: 1991 [2022-07-22 18:42:11,722 INFO L226 Difference]: Without dead ends: 1057 [2022-07-22 18:42:11,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-22 18:42:11,723 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 680 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:11,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 556 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:42:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-07-22 18:42:12,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1055. [2022-07-22 18:42:12,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 1054 states have (on average 1.4240986717267552) internal successors, (1501), 1054 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:12,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1501 transitions. [2022-07-22 18:42:12,688 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1501 transitions. Word has length 113 [2022-07-22 18:42:12,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:12,688 INFO L495 AbstractCegarLoop]: Abstraction has 1055 states and 1501 transitions. [2022-07-22 18:42:12,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:12,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1501 transitions. [2022-07-22 18:42:12,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-22 18:42:12,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:12,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:12,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-22 18:42:12,689 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:12,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:12,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1415505294, now seen corresponding path program 1 times [2022-07-22 18:42:12,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:12,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235292263] [2022-07-22 18:42:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:12,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:12,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:12,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235292263] [2022-07-22 18:42:12,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235292263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:12,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:12,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:42:12,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088487426] [2022-07-22 18:42:12,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:12,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 18:42:12,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 18:42:12,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:42:12,739 INFO L87 Difference]: Start difference. First operand 1055 states and 1501 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:15,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:15,945 INFO L93 Difference]: Finished difference Result 3631 states and 5277 transitions. [2022-07-22 18:42:15,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 18:42:15,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-22 18:42:15,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:15,949 INFO L225 Difference]: With dead ends: 3631 [2022-07-22 18:42:15,949 INFO L226 Difference]: Without dead ends: 3163 [2022-07-22 18:42:15,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:42:15,950 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1063 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:15,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 983 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:42:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2022-07-22 18:42:17,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 1755. [2022-07-22 18:42:17,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1754 states have (on average 1.4384264538198404) internal successors, (2523), 1754 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2523 transitions. [2022-07-22 18:42:17,639 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2523 transitions. Word has length 113 [2022-07-22 18:42:17,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:17,639 INFO L495 AbstractCegarLoop]: Abstraction has 1755 states and 2523 transitions. [2022-07-22 18:42:17,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:17,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2523 transitions. [2022-07-22 18:42:17,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-22 18:42:17,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:17,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:17,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-22 18:42:17,641 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:17,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:17,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1051419534, now seen corresponding path program 1 times [2022-07-22 18:42:17,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:17,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630286109] [2022-07-22 18:42:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:17,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:17,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:17,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630286109] [2022-07-22 18:42:17,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630286109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:17,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:17,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:42:17,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039463530] [2022-07-22 18:42:17,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:17,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 18:42:17,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:17,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 18:42:17,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:42:17,692 INFO L87 Difference]: Start difference. First operand 1755 states and 2523 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:21,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:21,309 INFO L93 Difference]: Finished difference Result 4097 states and 5959 transitions. [2022-07-22 18:42:21,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 18:42:21,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-22 18:42:21,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:21,313 INFO L225 Difference]: With dead ends: 4097 [2022-07-22 18:42:21,313 INFO L226 Difference]: Without dead ends: 3629 [2022-07-22 18:42:21,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:42:21,315 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1079 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:21,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 1005 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:42:21,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2022-07-22 18:42:23,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 2221. [2022-07-22 18:42:23,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2220 states have (on average 1.4436936936936937) internal successors, (3205), 2220 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3205 transitions. [2022-07-22 18:42:23,565 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3205 transitions. Word has length 113 [2022-07-22 18:42:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:23,565 INFO L495 AbstractCegarLoop]: Abstraction has 2221 states and 3205 transitions. [2022-07-22 18:42:23,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3205 transitions. [2022-07-22 18:42:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-22 18:42:23,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:23,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:23,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-22 18:42:23,567 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:23,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:23,567 INFO L85 PathProgramCache]: Analyzing trace with hash -310960526, now seen corresponding path program 1 times [2022-07-22 18:42:23,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:23,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696695293] [2022-07-22 18:42:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:23,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:23,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:23,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696695293] [2022-07-22 18:42:23,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696695293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:23,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:23,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:42:23,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048944863] [2022-07-22 18:42:23,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:23,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 18:42:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:23,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 18:42:23,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:42:23,631 INFO L87 Difference]: Start difference. First operand 2221 states and 3205 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:27,736 INFO L93 Difference]: Finished difference Result 4563 states and 6641 transitions. [2022-07-22 18:42:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 18:42:27,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-22 18:42:27,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:27,740 INFO L225 Difference]: With dead ends: 4563 [2022-07-22 18:42:27,740 INFO L226 Difference]: Without dead ends: 4095 [2022-07-22 18:42:27,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:42:27,741 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1185 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:27,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1014 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:42:27,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4095 states. [2022-07-22 18:42:30,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4095 to 2687. [2022-07-22 18:42:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2687 states, 2686 states have (on average 1.447133283693224) internal successors, (3887), 2686 states have internal predecessors, (3887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 3887 transitions. [2022-07-22 18:42:30,523 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 3887 transitions. Word has length 113 [2022-07-22 18:42:30,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:30,523 INFO L495 AbstractCegarLoop]: Abstraction has 2687 states and 3887 transitions. [2022-07-22 18:42:30,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 3887 transitions. [2022-07-22 18:42:30,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-22 18:42:30,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:30,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:30,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-22 18:42:30,525 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:30,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:30,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1879024262, now seen corresponding path program 1 times [2022-07-22 18:42:30,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:30,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785868263] [2022-07-22 18:42:30,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:30,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:30,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:30,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:30,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785868263] [2022-07-22 18:42:30,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785868263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:30,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:30,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:42:30,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646819254] [2022-07-22 18:42:30,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:30,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:42:30,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:30,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:42:30,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:42:30,558 INFO L87 Difference]: Start difference. First operand 2687 states and 3887 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:35,723 INFO L93 Difference]: Finished difference Result 7643 states and 11089 transitions. [2022-07-22 18:42:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:42:35,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-22 18:42:35,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:35,728 INFO L225 Difference]: With dead ends: 7643 [2022-07-22 18:42:35,728 INFO L226 Difference]: Without dead ends: 5077 [2022-07-22 18:42:35,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:42:35,730 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 90 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:35,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:42:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5077 states. [2022-07-22 18:42:40,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5077 to 4899. [2022-07-22 18:42:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4899 states, 4898 states have (on average 1.4432421396488362) internal successors, (7069), 4898 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4899 states to 4899 states and 7069 transitions. [2022-07-22 18:42:40,746 INFO L78 Accepts]: Start accepts. Automaton has 4899 states and 7069 transitions. Word has length 114 [2022-07-22 18:42:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:40,746 INFO L495 AbstractCegarLoop]: Abstraction has 4899 states and 7069 transitions. [2022-07-22 18:42:40,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4899 states and 7069 transitions. [2022-07-22 18:42:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-22 18:42:40,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:40,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:40,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-22 18:42:40,747 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:40,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:40,748 INFO L85 PathProgramCache]: Analyzing trace with hash -658426381, now seen corresponding path program 1 times [2022-07-22 18:42:40,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:40,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526396332] [2022-07-22 18:42:40,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:40,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:40,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:40,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526396332] [2022-07-22 18:42:40,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526396332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:40,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:40,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:42:40,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436715465] [2022-07-22 18:42:40,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:40,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:42:40,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:40,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:42:40,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:42:40,779 INFO L87 Difference]: Start difference. First operand 4899 states and 7069 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:42:50,513 INFO L93 Difference]: Finished difference Result 14103 states and 20327 transitions. [2022-07-22 18:42:50,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:42:50,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-22 18:42:50,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:42:50,522 INFO L225 Difference]: With dead ends: 14103 [2022-07-22 18:42:50,522 INFO L226 Difference]: Without dead ends: 9325 [2022-07-22 18:42:50,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:42:50,526 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 83 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:42:50,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:42:50,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9325 states. [2022-07-22 18:42:59,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9325 to 8971. [2022-07-22 18:42:59,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8971 states, 8970 states have (on average 1.4337792642140468) internal successors, (12861), 8970 states have internal predecessors, (12861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8971 states to 8971 states and 12861 transitions. [2022-07-22 18:42:59,964 INFO L78 Accepts]: Start accepts. Automaton has 8971 states and 12861 transitions. Word has length 115 [2022-07-22 18:42:59,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:42:59,965 INFO L495 AbstractCegarLoop]: Abstraction has 8971 states and 12861 transitions. [2022-07-22 18:42:59,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:42:59,965 INFO L276 IsEmpty]: Start isEmpty. Operand 8971 states and 12861 transitions. [2022-07-22 18:42:59,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-22 18:42:59,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:42:59,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:42:59,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-22 18:42:59,966 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:42:59,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:42:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1836152402, now seen corresponding path program 1 times [2022-07-22 18:42:59,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:42:59,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291287497] [2022-07-22 18:42:59,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:42:59,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:42:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:42:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:42:59,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:42:59,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291287497] [2022-07-22 18:42:59,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291287497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:42:59,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:42:59,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:42:59,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486437560] [2022-07-22 18:42:59,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:42:59,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:42:59,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:42:59,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:42:59,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:42:59,998 INFO L87 Difference]: Start difference. First operand 8971 states and 12861 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:43:18,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:43:18,095 INFO L93 Difference]: Finished difference Result 25967 states and 37087 transitions. [2022-07-22 18:43:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:43:18,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-07-22 18:43:18,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:43:18,113 INFO L225 Difference]: With dead ends: 25967 [2022-07-22 18:43:18,113 INFO L226 Difference]: Without dead ends: 17117 [2022-07-22 18:43:18,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:43:18,121 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 76 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:43:18,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:43:18,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17117 states. [2022-07-22 18:43:35,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17117 to 16411. [2022-07-22 18:43:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16411 states, 16410 states have (on average 1.419926873857404) internal successors, (23301), 16410 states have internal predecessors, (23301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:43:35,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16411 states to 16411 states and 23301 transitions. [2022-07-22 18:43:35,625 INFO L78 Accepts]: Start accepts. Automaton has 16411 states and 23301 transitions. Word has length 116 [2022-07-22 18:43:35,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:43:35,625 INFO L495 AbstractCegarLoop]: Abstraction has 16411 states and 23301 transitions. [2022-07-22 18:43:35,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:43:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand 16411 states and 23301 transitions. [2022-07-22 18:43:35,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-22 18:43:35,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:43:35,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:43:35,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-22 18:43:35,626 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:43:35,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:43:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1618075135, now seen corresponding path program 1 times [2022-07-22 18:43:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:43:35,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642852086] [2022-07-22 18:43:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:43:35,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:43:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:43:35,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:43:35,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:43:35,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642852086] [2022-07-22 18:43:35,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642852086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:43:35,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:43:35,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:43:35,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376359277] [2022-07-22 18:43:35,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:43:35,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:43:35,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:43:35,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:43:35,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:43:35,658 INFO L87 Difference]: Start difference. First operand 16411 states and 23301 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:44:09,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:09,368 INFO L93 Difference]: Finished difference Result 47583 states and 67175 transitions. [2022-07-22 18:44:09,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:44:09,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-07-22 18:44:09,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:09,410 INFO L225 Difference]: With dead ends: 47583 [2022-07-22 18:44:09,410 INFO L226 Difference]: Without dead ends: 31293 [2022-07-22 18:44:09,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:44:09,427 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 66 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:09,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 407 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:44:09,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31293 states. [2022-07-22 18:44:42,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31293 to 29883. [2022-07-22 18:44:42,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29883 states, 29882 states have (on average 1.4019476607991432) internal successors, (41893), 29882 states have internal predecessors, (41893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:44:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29883 states to 29883 states and 41893 transitions. [2022-07-22 18:44:42,242 INFO L78 Accepts]: Start accepts. Automaton has 29883 states and 41893 transitions. Word has length 117 [2022-07-22 18:44:42,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:42,242 INFO L495 AbstractCegarLoop]: Abstraction has 29883 states and 41893 transitions. [2022-07-22 18:44:42,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:44:42,242 INFO L276 IsEmpty]: Start isEmpty. Operand 29883 states and 41893 transitions. [2022-07-22 18:44:42,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-22 18:44:42,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:42,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:44:42,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-22 18:44:42,243 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-22 18:44:42,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:42,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1304740322, now seen corresponding path program 1 times [2022-07-22 18:44:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:42,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537873206] [2022-07-22 18:44:42,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:42,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:42,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:42,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:42,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537873206] [2022-07-22 18:44:42,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537873206] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:42,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:42,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:44:42,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589807933] [2022-07-22 18:44:42,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:42,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:44:42,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:42,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:44:42,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:44:42,289 INFO L87 Difference]: Start difference. First operand 29883 states and 41893 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)