./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8381803db0f296b6c475c94ca7dd8f9a2c79c383b82b37638a653c8556f3f15c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 16:35:31,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 16:35:31,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 16:35:31,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 16:35:31,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 16:35:31,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 16:35:31,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 16:35:31,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 16:35:31,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 16:35:31,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 16:35:31,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 16:35:31,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 16:35:31,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 16:35:31,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 16:35:31,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 16:35:31,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 16:35:31,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 16:35:31,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 16:35:31,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 16:35:31,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 16:35:31,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 16:35:31,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 16:35:31,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 16:35:31,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 16:35:31,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 16:35:31,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 16:35:31,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 16:35:31,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 16:35:31,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 16:35:31,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 16:35:31,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 16:35:31,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 16:35:31,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 16:35:31,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 16:35:31,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 16:35:31,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 16:35:31,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 16:35:31,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 16:35:31,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 16:35:31,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 16:35:31,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 16:35:31,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 16:35:31,891 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 16:35:31,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 16:35:31,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 16:35:31,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 16:35:31,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 16:35:31,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 16:35:31,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 16:35:31,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 16:35:31,894 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 16:35:31,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 16:35:31,894 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 16:35:31,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 16:35:31,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 16:35:31,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 16:35:31,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 16:35:31,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 16:35:31,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 16:35:31,895 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 16:35:31,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 16:35:31,895 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 16:35:31,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 16:35:31,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 16:35:31,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 16:35:31,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 16:35:31,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:35:31,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 16:35:31,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 16:35:31,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 16:35:31,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 16:35:31,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 16:35:31,897 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 16:35:31,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 16:35:31,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 16:35:31,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 16:35:31,898 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8381803db0f296b6c475c94ca7dd8f9a2c79c383b82b37638a653c8556f3f15c [2021-12-17 16:35:32,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 16:35:32,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 16:35:32,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 16:35:32,103 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 16:35:32,104 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 16:35:32,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-12-17 16:35:32,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e34f5a2b3/fbb8c2b4d2a945298e9b8bf4a65b281c/FLAGee55b8141 [2021-12-17 16:35:32,604 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 16:35:32,604 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-12-17 16:35:32,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e34f5a2b3/fbb8c2b4d2a945298e9b8bf4a65b281c/FLAGee55b8141 [2021-12-17 16:35:32,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e34f5a2b3/fbb8c2b4d2a945298e9b8bf4a65b281c [2021-12-17 16:35:32,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 16:35:32,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 16:35:32,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 16:35:32,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 16:35:32,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 16:35:32,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:35:32" (1/1) ... [2021-12-17 16:35:32,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10bd711a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:32, skipping insertion in model container [2021-12-17 16:35:32,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:35:32" (1/1) ... [2021-12-17 16:35:32,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 16:35:33,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 16:35:33,296 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11561,11574] [2021-12-17 16:35:33,323 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15618,15631] [2021-12-17 16:35:33,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16839,16852] [2021-12-17 16:35:33,339 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17545,17558] [2021-12-17 16:35:33,345 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19131,19144] [2021-12-17 16:35:33,348 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19837,19850] [2021-12-17 16:35:33,354 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20908,20921] [2021-12-17 16:35:33,368 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23398,23411] [2021-12-17 16:35:33,376 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-17 16:35:33,386 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25144,25157] [2021-12-17 16:35:33,394 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27082,27095] [2021-12-17 16:35:33,409 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31116,31129] [2021-12-17 16:35:33,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31825,31838] [2021-12-17 16:35:33,424 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32899,32912] [2021-12-17 16:35:33,432 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34874,34887] [2021-12-17 16:35:33,444 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38255,38268] [2021-12-17 16:35:33,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:35:33,568 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 16:35:33,615 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11561,11574] [2021-12-17 16:35:33,632 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15618,15631] [2021-12-17 16:35:33,636 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16839,16852] [2021-12-17 16:35:33,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17545,17558] [2021-12-17 16:35:33,642 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19131,19144] [2021-12-17 16:35:33,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19837,19850] [2021-12-17 16:35:33,650 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20908,20921] [2021-12-17 16:35:33,657 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23398,23411] [2021-12-17 16:35:33,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-17 16:35:33,662 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25144,25157] [2021-12-17 16:35:33,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27082,27095] [2021-12-17 16:35:33,672 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31116,31129] [2021-12-17 16:35:33,692 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31825,31838] [2021-12-17 16:35:33,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32899,32912] [2021-12-17 16:35:33,701 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34874,34887] [2021-12-17 16:35:33,707 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.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38255,38268] [2021-12-17 16:35:33,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:35:33,785 INFO L208 MainTranslator]: Completed translation [2021-12-17 16:35:33,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33 WrapperNode [2021-12-17 16:35:33,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 16:35:33,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 16:35:33,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 16:35:33,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 16:35:33,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,875 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3485 [2021-12-17 16:35:33,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 16:35:33,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 16:35:33,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 16:35:33,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 16:35:33,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 16:35:33,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 16:35:33,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 16:35:33,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 16:35:33,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (1/1) ... [2021-12-17 16:35:33,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:35:33,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 16:35:33,997 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) [2021-12-17 16:35:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 16:35:34,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 16:35:34,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 16:35:34,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 16:35:34,015 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 [2021-12-17 16:35:34,245 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 16:35:34,246 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 16:35:35,417 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 16:35:35,425 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 16:35:35,425 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 16:35:35,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:35:35 BoogieIcfgContainer [2021-12-17 16:35:35,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 16:35:35,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 16:35:35,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 16:35:35,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 16:35:35,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:35:32" (1/3) ... [2021-12-17 16:35:35,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c7a216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:35:35, skipping insertion in model container [2021-12-17 16:35:35,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:35:33" (2/3) ... [2021-12-17 16:35:35,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c7a216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:35:35, skipping insertion in model container [2021-12-17 16:35:35,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:35:35" (3/3) ... [2021-12-17 16:35:35,433 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-12-17 16:35:35,436 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 16:35:35,436 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-12-17 16:35:35,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 16:35:35,480 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 16:35:35,481 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-12-17 16:35:35,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:35,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-17 16:35:35,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:35,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:35,528 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:35,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:35,532 INFO L85 PathProgramCache]: Analyzing trace with hash -729096350, now seen corresponding path program 1 times [2021-12-17 16:35:35,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:35,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471136093] [2021-12-17 16:35:35,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:35,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:35,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:35,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:35,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471136093] [2021-12-17 16:35:35,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471136093] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:35,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:35,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:35:35,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988340103] [2021-12-17 16:35:35,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:35,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:35:35,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:35,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:35:35,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:35:35,926 INFO L87 Difference]: Start difference. First operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 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) [2021-12-17 16:35:36,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:36,463 INFO L93 Difference]: Finished difference Result 976 states and 1692 transitions. [2021-12-17 16:35:36,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:35:36,466 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 [2021-12-17 16:35:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:36,477 INFO L225 Difference]: With dead ends: 976 [2021-12-17 16:35:36,477 INFO L226 Difference]: Without dead ends: 546 [2021-12-17 16:35:36,481 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:36,484 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 2641 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:36,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2641 Valid, 653 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 16:35:36,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-12-17 16:35:36,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2021-12-17 16:35:36,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 530 states have (on average 1.2811320754716982) internal successors, (679), 545 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 679 transitions. [2021-12-17 16:35:36,537 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 679 transitions. Word has length 72 [2021-12-17 16:35:36,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:36,537 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 679 transitions. [2021-12-17 16:35:36,537 INFO L471 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) [2021-12-17 16:35:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 679 transitions. [2021-12-17 16:35:36,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-17 16:35:36,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:36,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:36,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 16:35:36,540 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:36,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:36,541 INFO L85 PathProgramCache]: Analyzing trace with hash -42769193, now seen corresponding path program 1 times [2021-12-17 16:35:36,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:36,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695323275] [2021-12-17 16:35:36,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:36,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:36,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:36,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695323275] [2021-12-17 16:35:36,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695323275] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:36,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:36,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:35:36,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321935132] [2021-12-17 16:35:36,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:36,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:35:36,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:35:36,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:35:36,643 INFO L87 Difference]: Start difference. First operand 546 states and 679 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) [2021-12-17 16:35:36,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:36,934 INFO L93 Difference]: Finished difference Result 884 states and 1135 transitions. [2021-12-17 16:35:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:35:36,934 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 [2021-12-17 16:35:36,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:36,937 INFO L225 Difference]: With dead ends: 884 [2021-12-17 16:35:36,937 INFO L226 Difference]: Without dead ends: 482 [2021-12-17 16:35:36,938 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:36,939 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1717 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:36,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1717 Valid, 354 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:35:36,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-12-17 16:35:36,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2021-12-17 16:35:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 466 states have (on average 1.3004291845493563) internal successors, (606), 481 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 606 transitions. [2021-12-17 16:35:36,956 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 606 transitions. Word has length 73 [2021-12-17 16:35:36,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:36,956 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 606 transitions. [2021-12-17 16:35:36,957 INFO L471 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) [2021-12-17 16:35:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 606 transitions. [2021-12-17 16:35:36,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-17 16:35:36,958 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:36,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:36,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 16:35:36,959 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:36,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash 222449731, now seen corresponding path program 1 times [2021-12-17 16:35:36,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:36,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716265368] [2021-12-17 16:35:36,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:36,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:37,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:37,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716265368] [2021-12-17 16:35:37,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716265368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:37,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:37,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:35:37,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492021545] [2021-12-17 16:35:37,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:37,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:35:37,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:37,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:35:37,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:35:37,030 INFO L87 Difference]: Start difference. First operand 482 states and 606 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) [2021-12-17 16:35:37,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:37,288 INFO L93 Difference]: Finished difference Result 820 states and 1061 transitions. [2021-12-17 16:35:37,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:35:37,288 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 [2021-12-17 16:35:37,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:37,292 INFO L225 Difference]: With dead ends: 820 [2021-12-17 16:35:37,292 INFO L226 Difference]: Without dead ends: 429 [2021-12-17 16:35:37,293 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:37,303 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1594 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:37,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1594 Valid, 320 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:35:37,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-12-17 16:35:37,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2021-12-17 16:35:37,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 413 states have (on average 1.3268765133171914) internal successors, (548), 428 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:37,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 548 transitions. [2021-12-17 16:35:37,317 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 548 transitions. Word has length 74 [2021-12-17 16:35:37,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:37,317 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 548 transitions. [2021-12-17 16:35:37,318 INFO L471 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) [2021-12-17 16:35:37,318 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 548 transitions. [2021-12-17 16:35:37,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-17 16:35:37,319 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:37,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:37,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 16:35:37,320 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:37,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:37,321 INFO L85 PathProgramCache]: Analyzing trace with hash 452485952, now seen corresponding path program 1 times [2021-12-17 16:35:37,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:37,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653078199] [2021-12-17 16:35:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:37,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:37,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:37,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653078199] [2021-12-17 16:35:37,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653078199] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:37,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:37,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:35:37,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524248287] [2021-12-17 16:35:37,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:37,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:35:37,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:37,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:35:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:35:37,390 INFO L87 Difference]: Start difference. First operand 429 states and 548 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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) [2021-12-17 16:35:37,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:37,618 INFO L93 Difference]: Finished difference Result 767 states and 1002 transitions. [2021-12-17 16:35:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:35:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 [2021-12-17 16:35:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:37,621 INFO L225 Difference]: With dead ends: 767 [2021-12-17 16:35:37,621 INFO L226 Difference]: Without dead ends: 407 [2021-12-17 16:35:37,622 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:37,626 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 1489 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:37,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1489 Valid, 313 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:35:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-12-17 16:35:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2021-12-17 16:35:37,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 391 states have (on average 1.3375959079283888) internal successors, (523), 406 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 523 transitions. [2021-12-17 16:35:37,647 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 523 transitions. Word has length 75 [2021-12-17 16:35:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:37,649 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 523 transitions. [2021-12-17 16:35:37,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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) [2021-12-17 16:35:37,649 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 523 transitions. [2021-12-17 16:35:37,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-17 16:35:37,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:37,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:37,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 16:35:37,651 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:37,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:37,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1831461910, now seen corresponding path program 1 times [2021-12-17 16:35:37,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:37,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865337795] [2021-12-17 16:35:37,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:37,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:37,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:37,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865337795] [2021-12-17 16:35:37,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865337795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:37,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:37,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:35:37,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207719707] [2021-12-17 16:35:37,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:37,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:35:37,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:37,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:35:37,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:35:37,747 INFO L87 Difference]: Start difference. First operand 407 states and 523 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:37,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:37,975 INFO L93 Difference]: Finished difference Result 745 states and 976 transitions. [2021-12-17 16:35:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:35:37,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-12-17 16:35:37,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:37,977 INFO L225 Difference]: With dead ends: 745 [2021-12-17 16:35:37,978 INFO L226 Difference]: Without dead ends: 393 [2021-12-17 16:35:37,978 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:37,979 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 1457 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:37,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 303 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:35:37,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-12-17 16:35:37,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2021-12-17 16:35:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3448275862068966) internal successors, (507), 392 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) [2021-12-17 16:35:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 507 transitions. [2021-12-17 16:35:37,995 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 507 transitions. Word has length 76 [2021-12-17 16:35:37,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:37,996 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 507 transitions. [2021-12-17 16:35:37,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 507 transitions. [2021-12-17 16:35:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-17 16:35:37,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:37,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:37,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 16:35:37,998 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:37,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:37,998 INFO L85 PathProgramCache]: Analyzing trace with hash -142744767, now seen corresponding path program 1 times [2021-12-17 16:35:37,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:37,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969543758] [2021-12-17 16:35:37,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:37,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:38,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:38,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969543758] [2021-12-17 16:35:38,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969543758] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:38,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:38,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:38,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502103308] [2021-12-17 16:35:38,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:38,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:38,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:38,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:38,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:38,138 INFO L87 Difference]: Start difference. First operand 393 states and 507 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) [2021-12-17 16:35:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:38,897 INFO L93 Difference]: Finished difference Result 718 states and 938 transitions. [2021-12-17 16:35:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:38,897 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 [2021-12-17 16:35:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:38,901 INFO L225 Difference]: With dead ends: 718 [2021-12-17 16:35:38,901 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:35:38,901 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:38,902 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 1779 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:38,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1779 Valid, 1381 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:35:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:35:38,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:35:38,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3421750663129974) internal successors, (506), 392 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 506 transitions. [2021-12-17 16:35:38,923 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 506 transitions. Word has length 77 [2021-12-17 16:35:38,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:38,924 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 506 transitions. [2021-12-17 16:35:38,924 INFO L471 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) [2021-12-17 16:35:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 506 transitions. [2021-12-17 16:35:38,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-17 16:35:38,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:38,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:38,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 16:35:38,926 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:38,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:38,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2022253705, now seen corresponding path program 1 times [2021-12-17 16:35:38,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:38,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479553521] [2021-12-17 16:35:38,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:38,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:39,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:39,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479553521] [2021-12-17 16:35:39,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479553521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:39,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:39,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:39,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274589748] [2021-12-17 16:35:39,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:39,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:39,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:39,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:39,041 INFO L87 Difference]: Start difference. First operand 393 states and 506 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) [2021-12-17 16:35:39,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:39,759 INFO L93 Difference]: Finished difference Result 870 states and 1161 transitions. [2021-12-17 16:35:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:39,760 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 [2021-12-17 16:35:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:39,763 INFO L225 Difference]: With dead ends: 870 [2021-12-17 16:35:39,763 INFO L226 Difference]: Without dead ends: 741 [2021-12-17 16:35:39,764 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:39,764 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 3277 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3277 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:39,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3277 Valid, 1347 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2021-12-17 16:35:39,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 393. [2021-12-17 16:35:39,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.339522546419098) internal successors, (505), 392 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:39,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 505 transitions. [2021-12-17 16:35:39,784 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 505 transitions. Word has length 77 [2021-12-17 16:35:39,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:39,784 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 505 transitions. [2021-12-17 16:35:39,785 INFO L471 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) [2021-12-17 16:35:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 505 transitions. [2021-12-17 16:35:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-17 16:35:39,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:39,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:39,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 16:35:39,786 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:39,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash 679839246, now seen corresponding path program 1 times [2021-12-17 16:35:39,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:39,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131783939] [2021-12-17 16:35:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:39,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:39,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:39,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131783939] [2021-12-17 16:35:39,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131783939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:39,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:39,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:35:39,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073104935] [2021-12-17 16:35:39,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:39,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 16:35:39,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:39,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 16:35:39,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-17 16:35:39,870 INFO L87 Difference]: Start difference. First operand 393 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2021-12-17 16:35:40,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:40,338 INFO L93 Difference]: Finished difference Result 760 states and 963 transitions. [2021-12-17 16:35:40,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 16:35:40,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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 [2021-12-17 16:35:40,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:40,341 INFO L225 Difference]: With dead ends: 760 [2021-12-17 16:35:40,341 INFO L226 Difference]: Without dead ends: 547 [2021-12-17 16:35:40,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-17 16:35:40,342 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 2314 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:40,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2314 Valid, 686 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 16:35:40,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2021-12-17 16:35:40,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 393. [2021-12-17 16:35:40,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.336870026525199) internal successors, (504), 392 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 504 transitions. [2021-12-17 16:35:40,362 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 504 transitions. Word has length 77 [2021-12-17 16:35:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:40,363 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 504 transitions. [2021-12-17 16:35:40,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2021-12-17 16:35:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 504 transitions. [2021-12-17 16:35:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:40,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:40,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:40,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 16:35:40,365 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:40,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:40,365 INFO L85 PathProgramCache]: Analyzing trace with hash -204100811, now seen corresponding path program 1 times [2021-12-17 16:35:40,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:40,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022408096] [2021-12-17 16:35:40,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:40,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:40,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:40,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022408096] [2021-12-17 16:35:40,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022408096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:40,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:40,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:40,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538809854] [2021-12-17 16:35:40,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:40,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:40,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:40,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:40,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:40,467 INFO L87 Difference]: Start difference. First operand 393 states and 504 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) [2021-12-17 16:35:41,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:41,196 INFO L93 Difference]: Finished difference Result 783 states and 1030 transitions. [2021-12-17 16:35:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:41,197 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 [2021-12-17 16:35:41,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:41,199 INFO L225 Difference]: With dead ends: 783 [2021-12-17 16:35:41,199 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:35:41,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:41,200 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 2181 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:41,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2181 Valid, 1383 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:41,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:35:41,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:35:41,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3342175066312998) internal successors, (503), 392 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 503 transitions. [2021-12-17 16:35:41,221 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 503 transitions. Word has length 79 [2021-12-17 16:35:41,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:41,222 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 503 transitions. [2021-12-17 16:35:41,222 INFO L471 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) [2021-12-17 16:35:41,222 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 503 transitions. [2021-12-17 16:35:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:41,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:41,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:41,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 16:35:41,224 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:41,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:41,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1708096291, now seen corresponding path program 1 times [2021-12-17 16:35:41,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:41,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153076278] [2021-12-17 16:35:41,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:41,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:41,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:41,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153076278] [2021-12-17 16:35:41,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153076278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:41,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:41,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:35:41,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72006660] [2021-12-17 16:35:41,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:41,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:35:41,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:41,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:35:41,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:35:41,401 INFO L87 Difference]: Start difference. First operand 393 states and 503 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) [2021-12-17 16:35:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:43,142 INFO L93 Difference]: Finished difference Result 1366 states and 1871 transitions. [2021-12-17 16:35:43,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 16:35:43,143 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 [2021-12-17 16:35:43,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:43,147 INFO L225 Difference]: With dead ends: 1366 [2021-12-17 16:35:43,147 INFO L226 Difference]: Without dead ends: 1267 [2021-12-17 16:35:43,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 16:35:43,149 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 6140 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6140 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:43,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6140 Valid, 2414 Invalid, 2342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 16:35:43,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2021-12-17 16:35:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 397. [2021-12-17 16:35:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.330708661417323) internal successors, (507), 396 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) [2021-12-17 16:35:43,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 507 transitions. [2021-12-17 16:35:43,180 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 507 transitions. Word has length 79 [2021-12-17 16:35:43,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:43,180 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 507 transitions. [2021-12-17 16:35:43,180 INFO L471 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) [2021-12-17 16:35:43,180 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 507 transitions. [2021-12-17 16:35:43,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:43,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:43,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:43,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 16:35:43,182 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:43,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:43,183 INFO L85 PathProgramCache]: Analyzing trace with hash -612946039, now seen corresponding path program 1 times [2021-12-17 16:35:43,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:43,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420278585] [2021-12-17 16:35:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:43,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:43,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:43,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420278585] [2021-12-17 16:35:43,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420278585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:43,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:43,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:43,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673678565] [2021-12-17 16:35:43,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:43,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:43,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:43,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:43,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:43,325 INFO L87 Difference]: Start difference. First operand 397 states and 507 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) [2021-12-17 16:35:44,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:44,133 INFO L93 Difference]: Finished difference Result 810 states and 1070 transitions. [2021-12-17 16:35:44,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:44,133 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 [2021-12-17 16:35:44,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:44,136 INFO L225 Difference]: With dead ends: 810 [2021-12-17 16:35:44,136 INFO L226 Difference]: Without dead ends: 733 [2021-12-17 16:35:44,137 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:44,137 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1995 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:44,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1995 Valid, 1871 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:35:44,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-12-17 16:35:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 397. [2021-12-17 16:35:44,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3280839895013123) internal successors, (506), 396 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:44,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 506 transitions. [2021-12-17 16:35:44,165 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 506 transitions. Word has length 79 [2021-12-17 16:35:44,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:44,166 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 506 transitions. [2021-12-17 16:35:44,166 INFO L471 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) [2021-12-17 16:35:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 506 transitions. [2021-12-17 16:35:44,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:44,167 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:44,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:44,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 16:35:44,168 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:44,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:44,168 INFO L85 PathProgramCache]: Analyzing trace with hash 391973260, now seen corresponding path program 1 times [2021-12-17 16:35:44,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:44,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026263112] [2021-12-17 16:35:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:44,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:44,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:44,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026263112] [2021-12-17 16:35:44,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026263112] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:44,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:44,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:44,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933996862] [2021-12-17 16:35:44,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:44,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:44,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:44,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:44,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:44,278 INFO L87 Difference]: Start difference. First operand 397 states and 506 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) [2021-12-17 16:35:44,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:44,961 INFO L93 Difference]: Finished difference Result 806 states and 1065 transitions. [2021-12-17 16:35:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:44,961 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 [2021-12-17 16:35:44,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:44,964 INFO L225 Difference]: With dead ends: 806 [2021-12-17 16:35:44,964 INFO L226 Difference]: Without dead ends: 733 [2021-12-17 16:35:44,964 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:44,965 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 2506 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2506 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:44,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2506 Valid, 1409 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:44,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-12-17 16:35:44,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 397. [2021-12-17 16:35:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3254593175853018) internal successors, (505), 396 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 505 transitions. [2021-12-17 16:35:44,987 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 505 transitions. Word has length 79 [2021-12-17 16:35:44,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:44,987 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 505 transitions. [2021-12-17 16:35:44,987 INFO L471 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) [2021-12-17 16:35:44,987 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 505 transitions. [2021-12-17 16:35:44,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:44,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:44,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:44,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 16:35:44,989 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:44,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:44,989 INFO L85 PathProgramCache]: Analyzing trace with hash -757085498, now seen corresponding path program 1 times [2021-12-17 16:35:44,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:44,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085790362] [2021-12-17 16:35:44,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:44,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:45,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:45,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085790362] [2021-12-17 16:35:45,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085790362] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:45,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:45,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:45,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989772695] [2021-12-17 16:35:45,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:45,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:45,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:45,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:45,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:45,069 INFO L87 Difference]: Start difference. First operand 397 states and 505 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) [2021-12-17 16:35:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:45,736 INFO L93 Difference]: Finished difference Result 784 states and 1028 transitions. [2021-12-17 16:35:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:45,737 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 [2021-12-17 16:35:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:45,740 INFO L225 Difference]: With dead ends: 784 [2021-12-17 16:35:45,740 INFO L226 Difference]: Without dead ends: 717 [2021-12-17 16:35:45,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:45,741 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1471 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:45,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 1443 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:45,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-12-17 16:35:45,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 397. [2021-12-17 16:35:45,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3228346456692914) internal successors, (504), 396 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:45,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 504 transitions. [2021-12-17 16:35:45,769 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 504 transitions. Word has length 79 [2021-12-17 16:35:45,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:45,769 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 504 transitions. [2021-12-17 16:35:45,769 INFO L471 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) [2021-12-17 16:35:45,770 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 504 transitions. [2021-12-17 16:35:45,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:45,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:45,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:45,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 16:35:45,771 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:45,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:45,772 INFO L85 PathProgramCache]: Analyzing trace with hash 917200450, now seen corresponding path program 1 times [2021-12-17 16:35:45,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:45,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220865655] [2021-12-17 16:35:45,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:45,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:45,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:45,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220865655] [2021-12-17 16:35:45,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220865655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:45,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:45,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:45,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780358140] [2021-12-17 16:35:45,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:45,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:45,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:45,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:45,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:45,867 INFO L87 Difference]: Start difference. First operand 397 states and 504 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) [2021-12-17 16:35:46,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:46,595 INFO L93 Difference]: Finished difference Result 827 states and 1095 transitions. [2021-12-17 16:35:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:46,596 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 [2021-12-17 16:35:46,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:46,605 INFO L225 Difference]: With dead ends: 827 [2021-12-17 16:35:46,605 INFO L226 Difference]: Without dead ends: 737 [2021-12-17 16:35:46,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:35:46,606 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 2973 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:46,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2973 Valid, 1504 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:46,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-17 16:35:46,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 397. [2021-12-17 16:35:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3202099737532809) internal successors, (503), 396 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 503 transitions. [2021-12-17 16:35:46,640 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 503 transitions. Word has length 79 [2021-12-17 16:35:46,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:46,640 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 503 transitions. [2021-12-17 16:35:46,640 INFO L471 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) [2021-12-17 16:35:46,641 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 503 transitions. [2021-12-17 16:35:46,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:46,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:46,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:46,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 16:35:46,642 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:46,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:46,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1786631023, now seen corresponding path program 1 times [2021-12-17 16:35:46,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:46,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231316508] [2021-12-17 16:35:46,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:46,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:46,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:46,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231316508] [2021-12-17 16:35:46,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231316508] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:46,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:46,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:46,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549626124] [2021-12-17 16:35:46,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:46,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:46,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:46,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:46,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:46,732 INFO L87 Difference]: Start difference. First operand 397 states and 503 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) [2021-12-17 16:35:47,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:47,450 INFO L93 Difference]: Finished difference Result 889 states and 1171 transitions. [2021-12-17 16:35:47,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:47,450 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 [2021-12-17 16:35:47,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:47,456 INFO L225 Difference]: With dead ends: 889 [2021-12-17 16:35:47,456 INFO L226 Difference]: Without dead ends: 745 [2021-12-17 16:35:47,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:47,459 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 2398 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:47,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2398 Valid, 1852 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:47,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-12-17 16:35:47,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 397. [2021-12-17 16:35:47,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3175853018372703) internal successors, (502), 396 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:47,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 502 transitions. [2021-12-17 16:35:47,483 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 502 transitions. Word has length 79 [2021-12-17 16:35:47,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:47,483 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 502 transitions. [2021-12-17 16:35:47,483 INFO L471 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) [2021-12-17 16:35:47,483 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 502 transitions. [2021-12-17 16:35:47,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:47,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:47,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:47,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 16:35:47,484 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:47,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1207195179, now seen corresponding path program 1 times [2021-12-17 16:35:47,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:47,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902374720] [2021-12-17 16:35:47,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:47,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:47,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:47,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902374720] [2021-12-17 16:35:47,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902374720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:47,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:47,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:47,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323508071] [2021-12-17 16:35:47,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:47,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:47,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:47,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:47,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:47,612 INFO L87 Difference]: Start difference. First operand 397 states and 502 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) [2021-12-17 16:35:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:48,328 INFO L93 Difference]: Finished difference Result 810 states and 1063 transitions. [2021-12-17 16:35:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:48,328 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 [2021-12-17 16:35:48,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:48,330 INFO L225 Difference]: With dead ends: 810 [2021-12-17 16:35:48,330 INFO L226 Difference]: Without dead ends: 733 [2021-12-17 16:35:48,331 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:48,331 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 1942 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:48,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1942 Valid, 1941 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:48,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-12-17 16:35:48,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 397. [2021-12-17 16:35:48,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.31496062992126) internal successors, (501), 396 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 501 transitions. [2021-12-17 16:35:48,355 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 501 transitions. Word has length 79 [2021-12-17 16:35:48,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:48,356 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 501 transitions. [2021-12-17 16:35:48,356 INFO L471 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) [2021-12-17 16:35:48,356 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 501 transitions. [2021-12-17 16:35:48,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-17 16:35:48,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:48,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:48,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 16:35:48,357 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:48,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:48,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1616040407, now seen corresponding path program 1 times [2021-12-17 16:35:48,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:48,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529180119] [2021-12-17 16:35:48,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:48,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:48,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:48,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529180119] [2021-12-17 16:35:48,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529180119] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:48,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:48,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:48,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101668643] [2021-12-17 16:35:48,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:48,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:48,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:48,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:48,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:48,434 INFO L87 Difference]: Start difference. First operand 397 states and 501 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) [2021-12-17 16:35:49,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:49,172 INFO L93 Difference]: Finished difference Result 836 states and 1101 transitions. [2021-12-17 16:35:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:49,172 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 [2021-12-17 16:35:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:49,174 INFO L225 Difference]: With dead ends: 836 [2021-12-17 16:35:49,174 INFO L226 Difference]: Without dead ends: 737 [2021-12-17 16:35:49,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:49,175 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1890 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:49,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1890 Valid, 2018 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:35:49,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-17 16:35:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 397. [2021-12-17 16:35:49,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3123359580052494) internal successors, (500), 396 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 500 transitions. [2021-12-17 16:35:49,204 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 500 transitions. Word has length 79 [2021-12-17 16:35:49,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:49,204 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 500 transitions. [2021-12-17 16:35:49,205 INFO L471 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) [2021-12-17 16:35:49,205 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 500 transitions. [2021-12-17 16:35:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-17 16:35:49,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:49,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:49,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 16:35:49,206 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:49,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:49,206 INFO L85 PathProgramCache]: Analyzing trace with hash -63232213, now seen corresponding path program 1 times [2021-12-17 16:35:49,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:49,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145734315] [2021-12-17 16:35:49,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:49,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:49,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:49,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145734315] [2021-12-17 16:35:49,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145734315] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:49,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:49,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:49,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559538890] [2021-12-17 16:35:49,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:49,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:49,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:49,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:49,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:49,291 INFO L87 Difference]: Start difference. First operand 397 states and 500 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) [2021-12-17 16:35:50,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:50,008 INFO L93 Difference]: Finished difference Result 836 states and 1101 transitions. [2021-12-17 16:35:50,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:50,009 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 [2021-12-17 16:35:50,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:50,011 INFO L225 Difference]: With dead ends: 836 [2021-12-17 16:35:50,011 INFO L226 Difference]: Without dead ends: 737 [2021-12-17 16:35:50,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:50,012 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 2044 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:50,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2044 Valid, 1918 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-17 16:35:50,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 393. [2021-12-17 16:35:50,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.312997347480106) internal successors, (495), 392 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 495 transitions. [2021-12-17 16:35:50,045 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 495 transitions. Word has length 80 [2021-12-17 16:35:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:50,047 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 495 transitions. [2021-12-17 16:35:50,047 INFO L471 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) [2021-12-17 16:35:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 495 transitions. [2021-12-17 16:35:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:50,049 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:50,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:50,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 16:35:50,049 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:50,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:50,050 INFO L85 PathProgramCache]: Analyzing trace with hash -247238646, now seen corresponding path program 1 times [2021-12-17 16:35:50,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:50,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162333732] [2021-12-17 16:35:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:50,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:50,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:50,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:50,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162333732] [2021-12-17 16:35:50,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162333732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:50,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:50,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:50,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238556835] [2021-12-17 16:35:50,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:50,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:50,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:50,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:50,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:50,166 INFO L87 Difference]: Start difference. First operand 393 states and 495 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:50,999 INFO L93 Difference]: Finished difference Result 811 states and 1061 transitions. [2021-12-17 16:35:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:51,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:51,002 INFO L225 Difference]: With dead ends: 811 [2021-12-17 16:35:51,002 INFO L226 Difference]: Without dead ends: 729 [2021-12-17 16:35:51,002 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:51,003 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 1764 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:51,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1764 Valid, 2263 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:35:51,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-12-17 16:35:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 393. [2021-12-17 16:35:51,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3103448275862069) internal successors, (494), 392 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:51,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 494 transitions. [2021-12-17 16:35:51,028 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 494 transitions. Word has length 81 [2021-12-17 16:35:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:51,028 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 494 transitions. [2021-12-17 16:35:51,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:51,029 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 494 transitions. [2021-12-17 16:35:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:51,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:51,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:51,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 16:35:51,030 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1648828412, now seen corresponding path program 1 times [2021-12-17 16:35:51,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:51,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029516409] [2021-12-17 16:35:51,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:51,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:51,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:51,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029516409] [2021-12-17 16:35:51,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029516409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:51,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:51,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:51,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137745491] [2021-12-17 16:35:51,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:51,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:51,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:51,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:51,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:51,116 INFO L87 Difference]: Start difference. First operand 393 states and 494 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:51,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:51,911 INFO L93 Difference]: Finished difference Result 780 states and 1017 transitions. [2021-12-17 16:35:51,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:51,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:51,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:51,913 INFO L225 Difference]: With dead ends: 780 [2021-12-17 16:35:51,913 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:35:51,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:51,914 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 2240 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:51,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2240 Valid, 2099 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:35:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:35:51,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:35:51,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3076923076923077) internal successors, (493), 392 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:51,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 493 transitions. [2021-12-17 16:35:51,940 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 493 transitions. Word has length 81 [2021-12-17 16:35:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:51,941 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 493 transitions. [2021-12-17 16:35:51,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:51,941 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 493 transitions. [2021-12-17 16:35:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:51,941 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:51,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:51,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 16:35:51,942 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:51,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1380394973, now seen corresponding path program 1 times [2021-12-17 16:35:51,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:51,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417962502] [2021-12-17 16:35:51,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:51,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:52,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:52,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417962502] [2021-12-17 16:35:52,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417962502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:52,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:52,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:52,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521928751] [2021-12-17 16:35:52,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:52,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:52,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:52,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:52,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:52,024 INFO L87 Difference]: Start difference. First operand 393 states and 493 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:52,761 INFO L93 Difference]: Finished difference Result 783 states and 1019 transitions. [2021-12-17 16:35:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:52,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:52,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:52,764 INFO L225 Difference]: With dead ends: 783 [2021-12-17 16:35:52,764 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:35:52,764 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:52,765 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1933 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:52,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1933 Valid, 1665 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:52,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:35:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:35:52,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3050397877984086) internal successors, (492), 392 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:52,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 492 transitions. [2021-12-17 16:35:52,791 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 492 transitions. Word has length 81 [2021-12-17 16:35:52,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:52,792 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 492 transitions. [2021-12-17 16:35:52,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:52,792 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 492 transitions. [2021-12-17 16:35:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:52,793 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:52,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:52,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 16:35:52,793 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:52,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:52,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1584216041, now seen corresponding path program 1 times [2021-12-17 16:35:52,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:52,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196613003] [2021-12-17 16:35:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:52,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:52,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:52,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:52,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196613003] [2021-12-17 16:35:52,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196613003] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:52,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:52,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:52,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840833227] [2021-12-17 16:35:52,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:52,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:52,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:52,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:52,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:52,873 INFO L87 Difference]: Start difference. First operand 393 states and 492 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:53,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:53,568 INFO L93 Difference]: Finished difference Result 806 states and 1051 transitions. [2021-12-17 16:35:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:53,570 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:53,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:53,572 INFO L225 Difference]: With dead ends: 806 [2021-12-17 16:35:53,572 INFO L226 Difference]: Without dead ends: 729 [2021-12-17 16:35:53,572 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:53,573 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 1758 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:53,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1758 Valid, 2042 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:53,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-12-17 16:35:53,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 393. [2021-12-17 16:35:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3023872679045092) internal successors, (491), 392 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 491 transitions. [2021-12-17 16:35:53,601 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 491 transitions. Word has length 81 [2021-12-17 16:35:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:53,602 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 491 transitions. [2021-12-17 16:35:53,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 491 transitions. [2021-12-17 16:35:53,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:53,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:53,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:53,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 16:35:53,603 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:53,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:53,604 INFO L85 PathProgramCache]: Analyzing trace with hash 558624169, now seen corresponding path program 1 times [2021-12-17 16:35:53,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:53,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724831546] [2021-12-17 16:35:53,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:53,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:53,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:53,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724831546] [2021-12-17 16:35:53,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724831546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:53,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:53,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:53,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45029867] [2021-12-17 16:35:53,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:53,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:53,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:53,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:53,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:53,694 INFO L87 Difference]: Start difference. First operand 393 states and 491 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:54,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:54,388 INFO L93 Difference]: Finished difference Result 780 states and 1013 transitions. [2021-12-17 16:35:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:54,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:54,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:54,395 INFO L225 Difference]: With dead ends: 780 [2021-12-17 16:35:54,395 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:35:54,395 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:54,396 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1313 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:54,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 1693 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:54,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:35:54,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:35:54,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.29973474801061) internal successors, (490), 392 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:54,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 490 transitions. [2021-12-17 16:35:54,423 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 490 transitions. Word has length 81 [2021-12-17 16:35:54,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:54,424 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 490 transitions. [2021-12-17 16:35:54,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 490 transitions. [2021-12-17 16:35:54,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:54,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:54,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:54,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 16:35:54,425 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:54,426 INFO L85 PathProgramCache]: Analyzing trace with hash -237124242, now seen corresponding path program 1 times [2021-12-17 16:35:54,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:54,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86301333] [2021-12-17 16:35:54,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:54,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:54,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:54,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86301333] [2021-12-17 16:35:54,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86301333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:54,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:54,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:54,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615348511] [2021-12-17 16:35:54,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:54,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:54,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:54,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:54,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:54,504 INFO L87 Difference]: Start difference. First operand 393 states and 490 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:55,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:55,284 INFO L93 Difference]: Finished difference Result 778 states and 1009 transitions. [2021-12-17 16:35:55,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:55,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:55,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:55,293 INFO L225 Difference]: With dead ends: 778 [2021-12-17 16:35:55,293 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:35:55,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:55,294 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 2284 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:55,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2284 Valid, 1961 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:35:55,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:35:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:35:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.297082228116711) internal successors, (489), 392 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 489 transitions. [2021-12-17 16:35:55,323 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 489 transitions. Word has length 81 [2021-12-17 16:35:55,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:55,323 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 489 transitions. [2021-12-17 16:35:55,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 489 transitions. [2021-12-17 16:35:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:55,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:55,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:55,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 16:35:55,324 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:55,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:55,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1610096682, now seen corresponding path program 1 times [2021-12-17 16:35:55,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:55,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891575104] [2021-12-17 16:35:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:55,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:55,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:55,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891575104] [2021-12-17 16:35:55,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891575104] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:55,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:55,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:55,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600545639] [2021-12-17 16:35:55,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:55,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:55,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:55,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:55,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:55,401 INFO L87 Difference]: Start difference. First operand 393 states and 489 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:56,050 INFO L93 Difference]: Finished difference Result 811 states and 1053 transitions. [2021-12-17 16:35:56,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:56,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:56,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:56,052 INFO L225 Difference]: With dead ends: 811 [2021-12-17 16:35:56,052 INFO L226 Difference]: Without dead ends: 729 [2021-12-17 16:35:56,053 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:56,053 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 2954 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:56,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2954 Valid, 1608 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 16:35:56,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-12-17 16:35:56,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 393. [2021-12-17 16:35:56,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2944297082228118) internal successors, (488), 392 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 488 transitions. [2021-12-17 16:35:56,096 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 488 transitions. Word has length 81 [2021-12-17 16:35:56,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:56,096 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 488 transitions. [2021-12-17 16:35:56,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:56,097 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 488 transitions. [2021-12-17 16:35:56,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:56,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:56,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:56,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-17 16:35:56,098 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:56,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:56,098 INFO L85 PathProgramCache]: Analyzing trace with hash -302100420, now seen corresponding path program 1 times [2021-12-17 16:35:56,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:56,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090783823] [2021-12-17 16:35:56,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:56,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:56,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:56,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090783823] [2021-12-17 16:35:56,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090783823] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:56,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:56,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:56,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681767360] [2021-12-17 16:35:56,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:56,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:56,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:56,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:56,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:56,175 INFO L87 Difference]: Start difference. First operand 393 states and 488 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:56,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:56,916 INFO L93 Difference]: Finished difference Result 783 states and 1012 transitions. [2021-12-17 16:35:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:56,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:56,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:56,918 INFO L225 Difference]: With dead ends: 783 [2021-12-17 16:35:56,918 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:35:56,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:56,919 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 2259 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:56,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2259 Valid, 2013 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:56,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:35:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:35:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2917771883289124) internal successors, (487), 392 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 487 transitions. [2021-12-17 16:35:56,951 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 487 transitions. Word has length 81 [2021-12-17 16:35:56,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:56,951 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 487 transitions. [2021-12-17 16:35:56,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:56,952 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 487 transitions. [2021-12-17 16:35:56,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:56,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:56,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:56,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 16:35:56,953 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:56,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash -286808248, now seen corresponding path program 1 times [2021-12-17 16:35:56,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:56,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914698166] [2021-12-17 16:35:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:56,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:57,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:57,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:57,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914698166] [2021-12-17 16:35:57,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914698166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:57,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:57,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:57,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022495522] [2021-12-17 16:35:57,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:57,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:57,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:57,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:57,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:57,027 INFO L87 Difference]: Start difference. First operand 393 states and 487 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:57,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:57,833 INFO L93 Difference]: Finished difference Result 842 states and 1093 transitions. [2021-12-17 16:35:57,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:57,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:57,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:57,839 INFO L225 Difference]: With dead ends: 842 [2021-12-17 16:35:57,839 INFO L226 Difference]: Without dead ends: 737 [2021-12-17 16:35:57,839 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:57,839 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1744 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:57,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 2414 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:35:57,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-17 16:35:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 393. [2021-12-17 16:35:57,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2891246684350133) internal successors, (486), 392 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 486 transitions. [2021-12-17 16:35:57,869 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 486 transitions. Word has length 81 [2021-12-17 16:35:57,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:57,869 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 486 transitions. [2021-12-17 16:35:57,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:57,869 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 486 transitions. [2021-12-17 16:35:57,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:57,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:57,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:57,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-17 16:35:57,870 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:57,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:57,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1055423202, now seen corresponding path program 1 times [2021-12-17 16:35:57,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:57,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27390731] [2021-12-17 16:35:57,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:57,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:57,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:57,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27390731] [2021-12-17 16:35:57,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27390731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:57,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:57,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:57,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692067339] [2021-12-17 16:35:57,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:57,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:57,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:57,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:57,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:57,957 INFO L87 Difference]: Start difference. First operand 393 states and 486 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:58,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:58,703 INFO L93 Difference]: Finished difference Result 718 states and 914 transitions. [2021-12-17 16:35:58,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:58,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:58,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:58,705 INFO L225 Difference]: With dead ends: 718 [2021-12-17 16:35:58,705 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:35:58,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:35:58,706 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 2249 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 2014 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 [2021-12-17 16:35:58,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2249 Valid, 2014 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:58,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:35:58,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:35:58,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2864721485411141) internal successors, (485), 392 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:58,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 485 transitions. [2021-12-17 16:35:58,744 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 485 transitions. Word has length 81 [2021-12-17 16:35:58,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:58,745 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 485 transitions. [2021-12-17 16:35:58,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:58,745 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 485 transitions. [2021-12-17 16:35:58,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:58,746 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:58,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:58,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-17 16:35:58,746 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:58,747 INFO L85 PathProgramCache]: Analyzing trace with hash 856773900, now seen corresponding path program 1 times [2021-12-17 16:35:58,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:58,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093335015] [2021-12-17 16:35:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:58,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:58,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:58,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093335015] [2021-12-17 16:35:58,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093335015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:58,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:58,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:58,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586789016] [2021-12-17 16:35:58,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:58,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:58,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:58,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:58,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:58,837 INFO L87 Difference]: Start difference. First operand 393 states and 485 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:35:59,592 INFO L93 Difference]: Finished difference Result 746 states and 952 transitions. [2021-12-17 16:35:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:35:59,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:35:59,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:35:59,594 INFO L225 Difference]: With dead ends: 746 [2021-12-17 16:35:59,594 INFO L226 Difference]: Without dead ends: 729 [2021-12-17 16:35:59,595 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:35:59,595 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 2294 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:35:59,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2294 Valid, 1994 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 16:35:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-12-17 16:35:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 393. [2021-12-17 16:35:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2838196286472148) internal successors, (484), 392 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:35:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 484 transitions. [2021-12-17 16:35:59,629 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 484 transitions. Word has length 81 [2021-12-17 16:35:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:35:59,629 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 484 transitions. [2021-12-17 16:35:59,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:35:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 484 transitions. [2021-12-17 16:35:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:35:59,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:35:59,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:35:59,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-17 16:35:59,631 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:35:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:35:59,631 INFO L85 PathProgramCache]: Analyzing trace with hash -544552721, now seen corresponding path program 1 times [2021-12-17 16:35:59,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:35:59,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588154550] [2021-12-17 16:35:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:35:59,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:35:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:35:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:35:59,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:35:59,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588154550] [2021-12-17 16:35:59,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588154550] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:35:59,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:35:59,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:35:59,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719215644] [2021-12-17 16:35:59,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:35:59,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:35:59,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:35:59,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:35:59,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:35:59,722 INFO L87 Difference]: Start difference. First operand 393 states and 484 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:36:00,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:00,595 INFO L93 Difference]: Finished difference Result 780 states and 1005 transitions. [2021-12-17 16:36:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:36:00,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:36:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:00,597 INFO L225 Difference]: With dead ends: 780 [2021-12-17 16:36:00,597 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:36:00,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:36:00,598 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 2142 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:00,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2142 Valid, 2235 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:36:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:36:00,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:36:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2811671087533156) internal successors, (483), 392 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 483 transitions. [2021-12-17 16:36:00,629 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 483 transitions. Word has length 81 [2021-12-17 16:36:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:00,629 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 483 transitions. [2021-12-17 16:36:00,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:36:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 483 transitions. [2021-12-17 16:36:00,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-17 16:36:00,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:00,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:00,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-17 16:36:00,630 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:00,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:00,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1810559777, now seen corresponding path program 1 times [2021-12-17 16:36:00,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:00,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263223895] [2021-12-17 16:36:00,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:00,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:00,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:00,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263223895] [2021-12-17 16:36:00,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263223895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:00,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:00,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:36:00,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513216874] [2021-12-17 16:36:00,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:00,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:36:00,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:00,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:36:00,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:36:00,698 INFO L87 Difference]: Start difference. First operand 393 states and 483 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:36:01,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:01,488 INFO L93 Difference]: Finished difference Result 718 states and 911 transitions. [2021-12-17 16:36:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:36:01,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2021-12-17 16:36:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:01,490 INFO L225 Difference]: With dead ends: 718 [2021-12-17 16:36:01,490 INFO L226 Difference]: Without dead ends: 713 [2021-12-17 16:36:01,491 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:01,491 INFO L933 BasicCegarLoop]: 491 mSDtfsCounter, 1895 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:01,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1895 Valid, 1953 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:36:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-17 16:36:01,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-17 16:36:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2785145888594165) internal successors, (482), 392 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 482 transitions. [2021-12-17 16:36:01,525 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 482 transitions. Word has length 81 [2021-12-17 16:36:01,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:01,526 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 482 transitions. [2021-12-17 16:36:01,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2021-12-17 16:36:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 482 transitions. [2021-12-17 16:36:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:36:01,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:01,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:01,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-17 16:36:01,527 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:01,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:01,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1687929497, now seen corresponding path program 1 times [2021-12-17 16:36:01,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:01,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916448505] [2021-12-17 16:36:01,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:01,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:01,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:01,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916448505] [2021-12-17 16:36:01,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916448505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:01,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:01,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:36:01,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90477393] [2021-12-17 16:36:01,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:01,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:36:01,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:01,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:36:01,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:36:01,776 INFO L87 Difference]: Start difference. First operand 393 states and 482 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:02,876 INFO L93 Difference]: Finished difference Result 925 states and 1133 transitions. [2021-12-17 16:36:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 16:36:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:36:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:02,879 INFO L225 Difference]: With dead ends: 925 [2021-12-17 16:36:02,879 INFO L226 Difference]: Without dead ends: 856 [2021-12-17 16:36:02,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-17 16:36:02,880 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 2482 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 4375 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:02,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2482 Valid, 4375 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:36:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2021-12-17 16:36:02,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 389. [2021-12-17 16:36:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 374 states have (on average 1.2754010695187166) internal successors, (477), 388 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 477 transitions. [2021-12-17 16:36:02,917 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 477 transitions. Word has length 83 [2021-12-17 16:36:02,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:02,917 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 477 transitions. [2021-12-17 16:36:02,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 477 transitions. [2021-12-17 16:36:02,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:36:02,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:02,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:02,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-17 16:36:02,918 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:02,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:02,919 INFO L85 PathProgramCache]: Analyzing trace with hash -92587651, now seen corresponding path program 1 times [2021-12-17 16:36:02,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:02,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689411109] [2021-12-17 16:36:02,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:02,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:03,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:03,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689411109] [2021-12-17 16:36:03,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689411109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:03,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:03,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 16:36:03,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671761380] [2021-12-17 16:36:03,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:03,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 16:36:03,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:03,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 16:36:03,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-17 16:36:03,123 INFO L87 Difference]: Start difference. First operand 389 states and 477 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:03,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:03,669 INFO L93 Difference]: Finished difference Result 902 states and 1128 transitions. [2021-12-17 16:36:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:36:03,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:36:03,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:03,672 INFO L225 Difference]: With dead ends: 902 [2021-12-17 16:36:03,672 INFO L226 Difference]: Without dead ends: 723 [2021-12-17 16:36:03,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-12-17 16:36:03,674 INFO L933 BasicCegarLoop]: 550 mSDtfsCounter, 2627 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:03,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2627 Valid, 1638 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:36:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-12-17 16:36:03,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 275. [2021-12-17 16:36:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 264 states have (on average 1.2651515151515151) internal successors, (334), 274 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:03,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 334 transitions. [2021-12-17 16:36:03,716 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 334 transitions. Word has length 83 [2021-12-17 16:36:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:03,716 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 334 transitions. [2021-12-17 16:36:03,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:03,716 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 334 transitions. [2021-12-17 16:36:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:36:03,717 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:03,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:03,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-17 16:36:03,718 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:03,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:03,718 INFO L85 PathProgramCache]: Analyzing trace with hash -119228615, now seen corresponding path program 1 times [2021-12-17 16:36:03,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:03,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689221813] [2021-12-17 16:36:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:03,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:03,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:03,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689221813] [2021-12-17 16:36:03,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689221813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:03,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:03,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:36:03,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749987589] [2021-12-17 16:36:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:03,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:36:03,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:03,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:36:03,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:36:03,957 INFO L87 Difference]: Start difference. First operand 275 states and 334 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:04,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:04,839 INFO L93 Difference]: Finished difference Result 694 states and 869 transitions. [2021-12-17 16:36:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 16:36:04,840 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:36:04,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:04,842 INFO L225 Difference]: With dead ends: 694 [2021-12-17 16:36:04,842 INFO L226 Difference]: Without dead ends: 625 [2021-12-17 16:36:04,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-17 16:36:04,843 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 1952 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:04,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1952 Valid, 2735 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 16:36:04,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-12-17 16:36:04,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 271. [2021-12-17 16:36:04,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 261 states have (on average 1.260536398467433) internal successors, (329), 270 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:04,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 329 transitions. [2021-12-17 16:36:04,876 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 329 transitions. Word has length 83 [2021-12-17 16:36:04,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:04,877 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 329 transitions. [2021-12-17 16:36:04,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:04,877 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 329 transitions. [2021-12-17 16:36:04,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:36:04,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:04,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:04,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-17 16:36:04,877 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:04,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:04,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1366575231, now seen corresponding path program 1 times [2021-12-17 16:36:04,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:04,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579626037] [2021-12-17 16:36:04,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:04,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:05,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:05,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579626037] [2021-12-17 16:36:05,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579626037] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:05,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:05,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:36:05,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434982574] [2021-12-17 16:36:05,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:05,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:36:05,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:36:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:36:05,114 INFO L87 Difference]: Start difference. First operand 271 states and 329 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:06,096 INFO L93 Difference]: Finished difference Result 1066 states and 1421 transitions. [2021-12-17 16:36:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 16:36:06,097 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:36:06,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:06,099 INFO L225 Difference]: With dead ends: 1066 [2021-12-17 16:36:06,099 INFO L226 Difference]: Without dead ends: 1000 [2021-12-17 16:36:06,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-12-17 16:36:06,100 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 2961 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2961 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:06,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2961 Valid, 3669 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 16:36:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2021-12-17 16:36:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 270. [2021-12-17 16:36:06,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 260 states have (on average 1.2576923076923077) internal successors, (327), 269 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:06,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 327 transitions. [2021-12-17 16:36:06,133 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 327 transitions. Word has length 83 [2021-12-17 16:36:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:06,134 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 327 transitions. [2021-12-17 16:36:06,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 327 transitions. [2021-12-17 16:36:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:36:06,134 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:06,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:06,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-17 16:36:06,135 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:06,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:06,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1899745763, now seen corresponding path program 1 times [2021-12-17 16:36:06,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:06,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883453226] [2021-12-17 16:36:06,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:06,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:06,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:06,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:06,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883453226] [2021-12-17 16:36:06,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883453226] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:06,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:06,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-12-17 16:36:06,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675031608] [2021-12-17 16:36:06,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:06,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-17 16:36:06,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:06,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-17 16:36:06,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2021-12-17 16:36:06,804 INFO L87 Difference]: Start difference. First operand 270 states and 327 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:11,293 INFO L93 Difference]: Finished difference Result 1239 states and 1591 transitions. [2021-12-17 16:36:11,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-17 16:36:11,293 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:36:11,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:11,296 INFO L225 Difference]: With dead ends: 1239 [2021-12-17 16:36:11,296 INFO L226 Difference]: Without dead ends: 1168 [2021-12-17 16:36:11,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=454, Invalid=2408, Unknown=0, NotChecked=0, Total=2862 [2021-12-17 16:36:11,297 INFO L933 BasicCegarLoop]: 961 mSDtfsCounter, 3131 mSDsluCounter, 13438 mSDsCounter, 0 mSdLazyCounter, 7280 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3131 SdHoareTripleChecker+Valid, 14399 SdHoareTripleChecker+Invalid, 7388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 7280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:11,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3131 Valid, 14399 Invalid, 7388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 7280 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-17 16:36:11,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2021-12-17 16:36:11,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 288. [2021-12-17 16:36:11,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 278 states have (on average 1.2589928057553956) internal successors, (350), 287 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:11,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 350 transitions. [2021-12-17 16:36:11,336 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 350 transitions. Word has length 83 [2021-12-17 16:36:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:11,336 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 350 transitions. [2021-12-17 16:36:11,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 350 transitions. [2021-12-17 16:36:11,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:36:11,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:11,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:11,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-17 16:36:11,337 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:11,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:11,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2051820758, now seen corresponding path program 1 times [2021-12-17 16:36:11,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:11,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325000001] [2021-12-17 16:36:11,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:11,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:11,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:11,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325000001] [2021-12-17 16:36:11,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325000001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:11,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:11,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:36:11,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307920904] [2021-12-17 16:36:11,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:11,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:36:11,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:11,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:36:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:36:11,566 INFO L87 Difference]: Start difference. First operand 288 states and 350 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:12,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:12,315 INFO L93 Difference]: Finished difference Result 700 states and 878 transitions. [2021-12-17 16:36:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:36:12,315 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:36:12,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:12,317 INFO L225 Difference]: With dead ends: 700 [2021-12-17 16:36:12,317 INFO L226 Difference]: Without dead ends: 631 [2021-12-17 16:36:12,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-12-17 16:36:12,318 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1918 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:12,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1918 Valid, 2405 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 16:36:12,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-12-17 16:36:12,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 284. [2021-12-17 16:36:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 275 states have (on average 1.2545454545454546) internal successors, (345), 283 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 345 transitions. [2021-12-17 16:36:12,364 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 345 transitions. Word has length 83 [2021-12-17 16:36:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:12,364 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 345 transitions. [2021-12-17 16:36:12,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:12,365 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 345 transitions. [2021-12-17 16:36:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-17 16:36:12,365 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:12,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:12,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-17 16:36:12,366 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1787055611, now seen corresponding path program 1 times [2021-12-17 16:36:12,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:12,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269172662] [2021-12-17 16:36:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:12,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:12,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:12,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:12,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269172662] [2021-12-17 16:36:12,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269172662] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:12,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:12,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:36:12,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137694178] [2021-12-17 16:36:12,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:12,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:36:12,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:12,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:36:12,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:36:12,543 INFO L87 Difference]: Start difference. First operand 284 states and 345 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:13,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:13,102 INFO L93 Difference]: Finished difference Result 745 states and 958 transitions. [2021-12-17 16:36:13,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 16:36:13,102 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-17 16:36:13,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:13,104 INFO L225 Difference]: With dead ends: 745 [2021-12-17 16:36:13,104 INFO L226 Difference]: Without dead ends: 617 [2021-12-17 16:36:13,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 16:36:13,105 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 1335 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:13,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 3466 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:36:13,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2021-12-17 16:36:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 221. [2021-12-17 16:36:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.25) internal successors, (270), 220 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 270 transitions. [2021-12-17 16:36:13,146 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 270 transitions. Word has length 83 [2021-12-17 16:36:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:13,146 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 270 transitions. [2021-12-17 16:36:13,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 270 transitions. [2021-12-17 16:36:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-17 16:36:13,147 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:13,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:13,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-17 16:36:13,147 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:13,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:13,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1619983761, now seen corresponding path program 1 times [2021-12-17 16:36:13,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:13,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28810417] [2021-12-17 16:36:13,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:13,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:13,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:13,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28810417] [2021-12-17 16:36:13,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28810417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:13,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:13,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:36:13,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248637616] [2021-12-17 16:36:13,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:13,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:36:13,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:13,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:36:13,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:36:13,381 INFO L87 Difference]: Start difference. First operand 221 states and 270 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) [2021-12-17 16:36:14,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:14,105 INFO L93 Difference]: Finished difference Result 570 states and 750 transitions. [2021-12-17 16:36:14,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:36:14,106 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 [2021-12-17 16:36:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:14,107 INFO L225 Difference]: With dead ends: 570 [2021-12-17 16:36:14,107 INFO L226 Difference]: Without dead ends: 492 [2021-12-17 16:36:14,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-12-17 16:36:14,108 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1021 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:14,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 2803 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:36:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-12-17 16:36:14,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 193. [2021-12-17 16:36:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 189 states have (on average 1.2433862433862435) internal successors, (235), 192 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 235 transitions. [2021-12-17 16:36:14,151 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 235 transitions. Word has length 84 [2021-12-17 16:36:14,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:14,151 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 235 transitions. [2021-12-17 16:36:14,151 INFO L471 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) [2021-12-17 16:36:14,151 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 235 transitions. [2021-12-17 16:36:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-17 16:36:14,152 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:14,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:14,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-17 16:36:14,152 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:14,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1314391107, now seen corresponding path program 1 times [2021-12-17 16:36:14,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:14,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083388728] [2021-12-17 16:36:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:14,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:14,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:14,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083388728] [2021-12-17 16:36:14,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083388728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:14,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:14,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:36:14,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201651060] [2021-12-17 16:36:14,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:14,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:36:14,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:14,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:36:14,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:36:14,285 INFO L87 Difference]: Start difference. First operand 193 states and 235 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2021-12-17 16:36:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:15,059 INFO L93 Difference]: Finished difference Result 475 states and 620 transitions. [2021-12-17 16:36:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 16:36:15,060 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 [2021-12-17 16:36:15,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:15,060 INFO L225 Difference]: With dead ends: 475 [2021-12-17 16:36:15,061 INFO L226 Difference]: Without dead ends: 468 [2021-12-17 16:36:15,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2021-12-17 16:36:15,061 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 2447 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:15,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2447 Valid, 824 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 16:36:15,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-12-17 16:36:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 197. [2021-12-17 16:36:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.238341968911917) internal successors, (239), 196 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 239 transitions. [2021-12-17 16:36:15,100 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 239 transitions. Word has length 84 [2021-12-17 16:36:15,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:15,100 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 239 transitions. [2021-12-17 16:36:15,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2021-12-17 16:36:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 239 transitions. [2021-12-17 16:36:15,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-17 16:36:15,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:15,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:15,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-17 16:36:15,100 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:15,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:15,101 INFO L85 PathProgramCache]: Analyzing trace with hash -102555148, now seen corresponding path program 1 times [2021-12-17 16:36:15,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:15,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993441192] [2021-12-17 16:36:15,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:15,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:15,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:15,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:15,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993441192] [2021-12-17 16:36:15,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993441192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:15,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:15,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:36:15,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354376022] [2021-12-17 16:36:15,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:15,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:36:15,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:15,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:36:15,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:36:15,190 INFO L87 Difference]: Start difference. First operand 197 states and 239 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-12-17 16:36:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:15,548 INFO L93 Difference]: Finished difference Result 300 states and 373 transitions. [2021-12-17 16:36:15,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 16:36:15,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-12-17 16:36:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:15,549 INFO L225 Difference]: With dead ends: 300 [2021-12-17 16:36:15,549 INFO L226 Difference]: Without dead ends: 293 [2021-12-17 16:36:15,549 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:15,550 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 1041 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:15,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 751 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:36:15,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-12-17 16:36:15,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 197. [2021-12-17 16:36:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.233160621761658) internal successors, (238), 196 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 238 transitions. [2021-12-17 16:36:15,587 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 238 transitions. Word has length 84 [2021-12-17 16:36:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:15,587 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 238 transitions. [2021-12-17 16:36:15,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-12-17 16:36:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 238 transitions. [2021-12-17 16:36:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-17 16:36:15,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:15,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:15,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-17 16:36:15,588 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:15,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:15,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1707932206, now seen corresponding path program 1 times [2021-12-17 16:36:15,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:15,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314215947] [2021-12-17 16:36:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:15,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:15,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:15,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:15,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314215947] [2021-12-17 16:36:15,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314215947] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:15,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:15,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:36:15,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521565875] [2021-12-17 16:36:15,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:15,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:36:15,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:15,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:36:15,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:36:15,652 INFO L87 Difference]: Start difference. First operand 197 states and 238 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-12-17 16:36:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:16,027 INFO L93 Difference]: Finished difference Result 384 states and 492 transitions. [2021-12-17 16:36:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 16:36:16,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-12-17 16:36:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:16,028 INFO L225 Difference]: With dead ends: 384 [2021-12-17 16:36:16,028 INFO L226 Difference]: Without dead ends: 301 [2021-12-17 16:36:16,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-12-17 16:36:16,029 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 832 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:16,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 739 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:36:16,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-12-17 16:36:16,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 197. [2021-12-17 16:36:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.2279792746113989) internal successors, (237), 196 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:16,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 237 transitions. [2021-12-17 16:36:16,074 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 237 transitions. Word has length 84 [2021-12-17 16:36:16,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:16,074 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 237 transitions. [2021-12-17 16:36:16,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-12-17 16:36:16,075 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 237 transitions. [2021-12-17 16:36:16,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-17 16:36:16,075 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:16,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:16,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-17 16:36:16,075 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:16,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:16,077 INFO L85 PathProgramCache]: Analyzing trace with hash -271355459, now seen corresponding path program 1 times [2021-12-17 16:36:16,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:16,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039976485] [2021-12-17 16:36:16,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:16,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:16,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:16,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039976485] [2021-12-17 16:36:16,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039976485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:16,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:16,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:36:16,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793618043] [2021-12-17 16:36:16,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:16,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:36:16,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:36:16,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:36:16,144 INFO L87 Difference]: Start difference. First operand 197 states and 237 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 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) [2021-12-17 16:36:16,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:16,510 INFO L93 Difference]: Finished difference Result 300 states and 371 transitions. [2021-12-17 16:36:16,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 16:36:16,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 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 [2021-12-17 16:36:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:16,511 INFO L225 Difference]: With dead ends: 300 [2021-12-17 16:36:16,511 INFO L226 Difference]: Without dead ends: 293 [2021-12-17 16:36:16,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-12-17 16:36:16,512 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 702 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:16,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [702 Valid, 861 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:36:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-12-17 16:36:16,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 193. [2021-12-17 16:36:16,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 189 states have (on average 1.2275132275132274) internal successors, (232), 192 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 232 transitions. [2021-12-17 16:36:16,549 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 232 transitions. Word has length 85 [2021-12-17 16:36:16,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:16,549 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 232 transitions. [2021-12-17 16:36:16,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 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) [2021-12-17 16:36:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 232 transitions. [2021-12-17 16:36:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-17 16:36:16,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:16,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:16,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-17 16:36:16,550 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:16,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:16,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1825531379, now seen corresponding path program 1 times [2021-12-17 16:36:16,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:16,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115707048] [2021-12-17 16:36:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:16,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:17,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:17,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115707048] [2021-12-17 16:36:17,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115707048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:17,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:17,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-12-17 16:36:17,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027906540] [2021-12-17 16:36:17,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:17,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-17 16:36:17,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:17,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-17 16:36:17,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2021-12-17 16:36:17,103 INFO L87 Difference]: Start difference. First operand 193 states and 232 transitions. Second operand has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:20,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:20,260 INFO L93 Difference]: Finished difference Result 780 states and 990 transitions. [2021-12-17 16:36:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-17 16:36:20,261 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-17 16:36:20,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:20,262 INFO L225 Difference]: With dead ends: 780 [2021-12-17 16:36:20,262 INFO L226 Difference]: Without dead ends: 772 [2021-12-17 16:36:20,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=380, Invalid=1876, Unknown=0, NotChecked=0, Total=2256 [2021-12-17 16:36:20,262 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 2087 mSDsluCounter, 8336 mSDsCounter, 0 mSdLazyCounter, 4419 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 9023 SdHoareTripleChecker+Invalid, 4499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:20,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2087 Valid, 9023 Invalid, 4499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4419 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 16:36:20,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2021-12-17 16:36:20,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 212. [2021-12-17 16:36:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 208 states have (on average 1.2259615384615385) internal successors, (255), 211 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 255 transitions. [2021-12-17 16:36:20,304 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 255 transitions. Word has length 86 [2021-12-17 16:36:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:20,304 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 255 transitions. [2021-12-17 16:36:20,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 255 transitions. [2021-12-17 16:36:20,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-17 16:36:20,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:20,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:20,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-17 16:36:20,305 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:20,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:20,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1644810532, now seen corresponding path program 1 times [2021-12-17 16:36:20,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:20,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158798272] [2021-12-17 16:36:20,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:20,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:20,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:20,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:20,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158798272] [2021-12-17 16:36:20,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158798272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:20,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:20,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-12-17 16:36:20,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294393323] [2021-12-17 16:36:20,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:20,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-17 16:36:20,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:20,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-17 16:36:21,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2021-12-17 16:36:21,000 INFO L87 Difference]: Start difference. First operand 212 states and 255 transitions. Second operand has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:24,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:24,254 INFO L93 Difference]: Finished difference Result 788 states and 1000 transitions. [2021-12-17 16:36:24,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-17 16:36:24,254 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-17 16:36:24,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:24,255 INFO L225 Difference]: With dead ends: 788 [2021-12-17 16:36:24,256 INFO L226 Difference]: Without dead ends: 780 [2021-12-17 16:36:24,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=421, Invalid=2129, Unknown=0, NotChecked=0, Total=2550 [2021-12-17 16:36:24,258 INFO L933 BasicCegarLoop]: 700 mSDtfsCounter, 2028 mSDsluCounter, 9307 mSDsCounter, 0 mSdLazyCounter, 4593 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 10007 SdHoareTripleChecker+Invalid, 4680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:24,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2028 Valid, 10007 Invalid, 4680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4593 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 16:36:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-12-17 16:36:24,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 221. [2021-12-17 16:36:24,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 217 states have (on average 1.2258064516129032) internal successors, (266), 220 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:24,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 266 transitions. [2021-12-17 16:36:24,313 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 266 transitions. Word has length 86 [2021-12-17 16:36:24,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:24,313 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 266 transitions. [2021-12-17 16:36:24,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:24,314 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 266 transitions. [2021-12-17 16:36:24,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-17 16:36:24,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:24,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:24,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-17 16:36:24,315 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:24,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1161243347, now seen corresponding path program 1 times [2021-12-17 16:36:24,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:24,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235942665] [2021-12-17 16:36:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:24,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:24,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:24,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:24,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235942665] [2021-12-17 16:36:24,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235942665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:24,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:24,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:36:24,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903303441] [2021-12-17 16:36:24,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:24,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:36:24,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:36:24,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:36:24,562 INFO L87 Difference]: Start difference. First operand 221 states and 266 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:25,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:25,580 INFO L93 Difference]: Finished difference Result 753 states and 1008 transitions. [2021-12-17 16:36:25,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 16:36:25,580 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-17 16:36:25,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:25,581 INFO L225 Difference]: With dead ends: 753 [2021-12-17 16:36:25,582 INFO L226 Difference]: Without dead ends: 747 [2021-12-17 16:36:25,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 16:36:25,582 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 1607 mSDsluCounter, 3067 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:25,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1607 Valid, 3555 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 16:36:25,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2021-12-17 16:36:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 215. [2021-12-17 16:36:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 212 states have (on average 1.2264150943396226) internal successors, (260), 214 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:25,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 260 transitions. [2021-12-17 16:36:25,627 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 260 transitions. Word has length 86 [2021-12-17 16:36:25,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:25,627 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 260 transitions. [2021-12-17 16:36:25,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:25,628 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 260 transitions. [2021-12-17 16:36:25,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-17 16:36:25,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:25,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:25,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-17 16:36:25,628 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:25,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:25,628 INFO L85 PathProgramCache]: Analyzing trace with hash 756216319, now seen corresponding path program 1 times [2021-12-17 16:36:25,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:25,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138111000] [2021-12-17 16:36:25,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:25,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:26,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:26,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138111000] [2021-12-17 16:36:26,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138111000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:26,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:26,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-12-17 16:36:26,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910910009] [2021-12-17 16:36:26,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:26,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-17 16:36:26,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-17 16:36:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:36:26,194 INFO L87 Difference]: Start difference. First operand 215 states and 260 transitions. Second operand has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:28,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:28,497 INFO L93 Difference]: Finished difference Result 548 states and 695 transitions. [2021-12-17 16:36:28,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-17 16:36:28,499 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-17 16:36:28,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:28,499 INFO L225 Difference]: With dead ends: 548 [2021-12-17 16:36:28,499 INFO L226 Difference]: Without dead ends: 540 [2021-12-17 16:36:28,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1735, Unknown=0, NotChecked=0, Total=2162 [2021-12-17 16:36:28,500 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 1444 mSDsluCounter, 5814 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 6323 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:28,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1444 Valid, 6323 Invalid, 2729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 16:36:28,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-12-17 16:36:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 211. [2021-12-17 16:36:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 208 states have (on average 1.2211538461538463) internal successors, (254), 210 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 254 transitions. [2021-12-17 16:36:28,557 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 254 transitions. Word has length 87 [2021-12-17 16:36:28,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:28,557 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 254 transitions. [2021-12-17 16:36:28,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 254 transitions. [2021-12-17 16:36:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-17 16:36:28,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:28,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:28,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-17 16:36:28,558 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:28,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash 575495472, now seen corresponding path program 1 times [2021-12-17 16:36:28,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:28,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868946763] [2021-12-17 16:36:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:28,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:28,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:28,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868946763] [2021-12-17 16:36:28,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868946763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:28,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:28,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 16:36:28,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721176802] [2021-12-17 16:36:28,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:28,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 16:36:28,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:28,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 16:36:28,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 16:36:28,819 INFO L87 Difference]: Start difference. First operand 211 states and 254 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:29,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:29,886 INFO L93 Difference]: Finished difference Result 590 states and 790 transitions. [2021-12-17 16:36:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 16:36:29,886 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-17 16:36:29,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:29,887 INFO L225 Difference]: With dead ends: 590 [2021-12-17 16:36:29,887 INFO L226 Difference]: Without dead ends: 575 [2021-12-17 16:36:29,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 16:36:29,888 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 1098 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 4226 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:29,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 4226 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 16:36:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-12-17 16:36:29,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 180. [2021-12-17 16:36:29,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 1.2247191011235956) internal successors, (218), 179 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:29,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 218 transitions. [2021-12-17 16:36:29,933 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 218 transitions. Word has length 87 [2021-12-17 16:36:29,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:29,933 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 218 transitions. [2021-12-17 16:36:29,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:29,934 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 218 transitions. [2021-12-17 16:36:29,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-17 16:36:29,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:29,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:29,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-17 16:36:29,934 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:29,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1748517233, now seen corresponding path program 1 times [2021-12-17 16:36:29,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:29,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414529764] [2021-12-17 16:36:29,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:29,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:30,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:30,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:30,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414529764] [2021-12-17 16:36:30,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414529764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:30,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:30,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 16:36:30,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772037322] [2021-12-17 16:36:30,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:30,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:36:30,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:30,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:36:30,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:36:30,131 INFO L87 Difference]: Start difference. First operand 180 states and 218 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:30,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:30,765 INFO L93 Difference]: Finished difference Result 438 states and 577 transitions. [2021-12-17 16:36:30,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 16:36:30,765 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-17 16:36:30,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:30,766 INFO L225 Difference]: With dead ends: 438 [2021-12-17 16:36:30,766 INFO L226 Difference]: Without dead ends: 415 [2021-12-17 16:36:30,766 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:30,767 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 909 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:30,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 2401 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 16:36:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-12-17 16:36:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 157. [2021-12-17 16:36:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 1.2371794871794872) internal successors, (193), 156 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:30,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2021-12-17 16:36:30,810 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 87 [2021-12-17 16:36:30,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:30,810 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2021-12-17 16:36:30,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2021-12-17 16:36:30,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 16:36:30,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:30,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:30,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-17 16:36:30,811 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:30,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2132814901, now seen corresponding path program 1 times [2021-12-17 16:36:30,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:30,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254593891] [2021-12-17 16:36:30,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:30,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:30,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:30,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254593891] [2021-12-17 16:36:30,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254593891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:30,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:30,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:36:30,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058512182] [2021-12-17 16:36:30,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:30,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 16:36:30,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:30,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 16:36:30,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:36:30,861 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2021-12-17 16:36:31,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:31,305 INFO L93 Difference]: Finished difference Result 807 states and 1143 transitions. [2021-12-17 16:36:31,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 16:36:31,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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 [2021-12-17 16:36:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:31,307 INFO L225 Difference]: With dead ends: 807 [2021-12-17 16:36:31,307 INFO L226 Difference]: Without dead ends: 742 [2021-12-17 16:36:31,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-17 16:36:31,307 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 1268 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:31,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1268 Valid, 2157 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:36:31,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-12-17 16:36:31,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 220. [2021-12-17 16:36:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.3013698630136987) internal successors, (285), 219 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:31,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 285 transitions. [2021-12-17 16:36:31,382 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 285 transitions. Word has length 114 [2021-12-17 16:36:31,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:31,383 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 285 transitions. [2021-12-17 16:36:31,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2021-12-17 16:36:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 285 transitions. [2021-12-17 16:36:31,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:36:31,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:31,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:31,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-17 16:36:31,384 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:31,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:31,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1778175941, now seen corresponding path program 1 times [2021-12-17 16:36:31,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:31,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194454925] [2021-12-17 16:36:31,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:31,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:31,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:31,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194454925] [2021-12-17 16:36:31,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194454925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:31,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:31,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:36:31,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285448730] [2021-12-17 16:36:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:31,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 16:36:31,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 16:36:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:36:31,435 INFO L87 Difference]: Start difference. First operand 220 states and 285 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:31,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:31,894 INFO L93 Difference]: Finished difference Result 925 states and 1313 transitions. [2021-12-17 16:36:31,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 16:36:31,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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 [2021-12-17 16:36:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:31,896 INFO L225 Difference]: With dead ends: 925 [2021-12-17 16:36:31,896 INFO L226 Difference]: Without dead ends: 797 [2021-12-17 16:36:31,896 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:31,896 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 1034 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:31,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 1227 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:36:31,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2021-12-17 16:36:32,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 346. [2021-12-17 16:36:32,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.3623188405797102) internal successors, (470), 345 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 470 transitions. [2021-12-17 16:36:32,042 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 470 transitions. Word has length 116 [2021-12-17 16:36:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:32,042 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 470 transitions. [2021-12-17 16:36:32,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:32,043 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 470 transitions. [2021-12-17 16:36:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:36:32,043 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:32,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:32,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-17 16:36:32,043 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:32,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:32,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1881237749, now seen corresponding path program 1 times [2021-12-17 16:36:32,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:32,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085922568] [2021-12-17 16:36:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:32,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:32,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:32,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085922568] [2021-12-17 16:36:32,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085922568] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:32,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:32,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:36:32,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156873705] [2021-12-17 16:36:32,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:32,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 16:36:32,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:32,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 16:36:32,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:36:32,098 INFO L87 Difference]: Start difference. First operand 346 states and 470 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:32,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:32,648 INFO L93 Difference]: Finished difference Result 1051 states and 1498 transitions. [2021-12-17 16:36:32,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 16:36:32,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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 [2021-12-17 16:36:32,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:32,649 INFO L225 Difference]: With dead ends: 1051 [2021-12-17 16:36:32,650 INFO L226 Difference]: Without dead ends: 923 [2021-12-17 16:36:32,650 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:32,651 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 1035 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:32,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 1131 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:36:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2021-12-17 16:36:32,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 535. [2021-12-17 16:36:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.398876404494382) internal successors, (747), 534 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:32,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 747 transitions. [2021-12-17 16:36:32,889 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 747 transitions. Word has length 116 [2021-12-17 16:36:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:32,889 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 747 transitions. [2021-12-17 16:36:32,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:32,890 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 747 transitions. [2021-12-17 16:36:32,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:36:32,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:32,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:32,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-17 16:36:32,890 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash -455453719, now seen corresponding path program 1 times [2021-12-17 16:36:32,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:32,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104541653] [2021-12-17 16:36:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:32,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:32,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:32,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104541653] [2021-12-17 16:36:32,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104541653] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:32,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:32,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:36:32,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896511248] [2021-12-17 16:36:32,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:32,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 16:36:32,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:32,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 16:36:32,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:36:32,940 INFO L87 Difference]: Start difference. First operand 535 states and 747 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:33,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:33,517 INFO L93 Difference]: Finished difference Result 1177 states and 1683 transitions. [2021-12-17 16:36:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 16:36:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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 [2021-12-17 16:36:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:33,520 INFO L225 Difference]: With dead ends: 1177 [2021-12-17 16:36:33,520 INFO L226 Difference]: Without dead ends: 1049 [2021-12-17 16:36:33,520 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:33,521 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 1109 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:33,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 1170 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:36:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2021-12-17 16:36:33,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 661. [2021-12-17 16:36:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 660 states have (on average 1.412121212121212) internal successors, (932), 660 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:33,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 932 transitions. [2021-12-17 16:36:33,826 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 932 transitions. Word has length 116 [2021-12-17 16:36:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:33,827 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 932 transitions. [2021-12-17 16:36:33,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 932 transitions. [2021-12-17 16:36:33,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:36:33,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:33,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:33,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-17 16:36:33,828 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:33,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:33,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2067568748, now seen corresponding path program 1 times [2021-12-17 16:36:33,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:33,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166332857] [2021-12-17 16:36:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:33,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:33,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:33,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166332857] [2021-12-17 16:36:33,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166332857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:33,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:33,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:36:33,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241695098] [2021-12-17 16:36:33,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:33,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 16:36:33,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:33,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 16:36:33,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:36:33,931 INFO L87 Difference]: Start difference. First operand 661 states and 932 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:34,341 INFO L93 Difference]: Finished difference Result 1232 states and 1767 transitions. [2021-12-17 16:36:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 16:36:34,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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 [2021-12-17 16:36:34,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:34,343 INFO L225 Difference]: With dead ends: 1232 [2021-12-17 16:36:34,343 INFO L226 Difference]: Without dead ends: 663 [2021-12-17 16:36:34,344 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:34,344 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 684 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 547 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 [2021-12-17 16:36:34,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 547 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:36:34,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2021-12-17 16:36:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 661. [2021-12-17 16:36:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 660 states have (on average 1.4045454545454545) internal successors, (927), 660 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:34,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 927 transitions. [2021-12-17 16:36:34,670 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 927 transitions. Word has length 116 [2021-12-17 16:36:34,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:34,671 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 927 transitions. [2021-12-17 16:36:34,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 927 transitions. [2021-12-17 16:36:34,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:36:34,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:34,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:34,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-17 16:36:34,671 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:34,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:34,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1298275755, now seen corresponding path program 1 times [2021-12-17 16:36:34,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:34,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668635714] [2021-12-17 16:36:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:34,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:34,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:34,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668635714] [2021-12-17 16:36:34,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668635714] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:34,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:34,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:36:34,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291250298] [2021-12-17 16:36:34,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:34,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:36:34,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:34,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:36:34,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:36:34,699 INFO L87 Difference]: Start difference. First operand 661 states and 927 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) [2021-12-17 16:36:35,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:35,294 INFO L93 Difference]: Finished difference Result 1741 states and 2488 transitions. [2021-12-17 16:36:35,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:36:35,295 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 [2021-12-17 16:36:35,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:35,296 INFO L225 Difference]: With dead ends: 1741 [2021-12-17 16:36:35,296 INFO L226 Difference]: Without dead ends: 1172 [2021-12-17 16:36:35,297 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:35,297 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 82 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:35,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 449 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:36:35,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2021-12-17 16:36:35,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1170. [2021-12-17 16:36:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1169 states have (on average 1.4029084687767321) internal successors, (1640), 1169 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:35,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1640 transitions. [2021-12-17 16:36:35,903 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1640 transitions. Word has length 116 [2021-12-17 16:36:35,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:35,903 INFO L470 AbstractCegarLoop]: Abstraction has 1170 states and 1640 transitions. [2021-12-17 16:36:35,903 INFO L471 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) [2021-12-17 16:36:35,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1640 transitions. [2021-12-17 16:36:35,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:36:35,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:35,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:35,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-17 16:36:35,904 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:35,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:35,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1451686365, now seen corresponding path program 1 times [2021-12-17 16:36:35,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:35,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440456504] [2021-12-17 16:36:35,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:35,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:35,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:35,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440456504] [2021-12-17 16:36:35,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440456504] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:35,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:35,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:36:35,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150949354] [2021-12-17 16:36:35,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:35,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 16:36:35,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:35,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 16:36:35,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:36:35,953 INFO L87 Difference]: Start difference. First operand 1170 states and 1640 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:37,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:37,139 INFO L93 Difference]: Finished difference Result 2377 states and 3366 transitions. [2021-12-17 16:36:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 16:36:37,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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 [2021-12-17 16:36:37,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:37,146 INFO L225 Difference]: With dead ends: 2377 [2021-12-17 16:36:37,146 INFO L226 Difference]: Without dead ends: 2136 [2021-12-17 16:36:37,146 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:37,147 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 1026 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:37,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 1195 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:36:37,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2021-12-17 16:36:37,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1409. [2021-12-17 16:36:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1408 states have (on average 1.4076704545454546) internal successors, (1982), 1408 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1982 transitions. [2021-12-17 16:36:37,876 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1982 transitions. Word has length 116 [2021-12-17 16:36:37,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:37,876 INFO L470 AbstractCegarLoop]: Abstraction has 1409 states and 1982 transitions. [2021-12-17 16:36:37,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1982 transitions. [2021-12-17 16:36:37,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 16:36:37,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:37,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:37,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-17 16:36:37,877 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:37,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash -871511505, now seen corresponding path program 1 times [2021-12-17 16:36:37,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:37,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982321454] [2021-12-17 16:36:37,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:37,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:37,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:37,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982321454] [2021-12-17 16:36:37,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982321454] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:37,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:37,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:36:37,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636306690] [2021-12-17 16:36:37,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:37,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 16:36:37,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:37,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 16:36:37,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:36:37,926 INFO L87 Difference]: Start difference. First operand 1409 states and 1982 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:39,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:39,290 INFO L93 Difference]: Finished difference Result 2616 states and 3708 transitions. [2021-12-17 16:36:39,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 16:36:39,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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 [2021-12-17 16:36:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:39,293 INFO L225 Difference]: With dead ends: 2616 [2021-12-17 16:36:39,293 INFO L226 Difference]: Without dead ends: 2375 [2021-12-17 16:36:39,294 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:39,294 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 964 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:36:39,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 1340 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 16:36:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2021-12-17 16:36:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1648. [2021-12-17 16:36:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1647 states have (on average 1.4110503946569521) internal successors, (2324), 1647 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2324 transitions. [2021-12-17 16:36:40,126 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2324 transitions. Word has length 116 [2021-12-17 16:36:40,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:40,127 INFO L470 AbstractCegarLoop]: Abstraction has 1648 states and 2324 transitions. [2021-12-17 16:36:40,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 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) [2021-12-17 16:36:40,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2324 transitions. [2021-12-17 16:36:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 16:36:40,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:40,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:40,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-17 16:36:40,128 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash -389045736, now seen corresponding path program 1 times [2021-12-17 16:36:40,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:40,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98196144] [2021-12-17 16:36:40,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:40,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:40,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:40,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98196144] [2021-12-17 16:36:40,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98196144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:40,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:40,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:36:40,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177723879] [2021-12-17 16:36:40,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:40,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:36:40,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:40,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:36:40,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:36:40,161 INFO L87 Difference]: Start difference. First operand 1648 states and 2324 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) [2021-12-17 16:36:41,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:41,529 INFO L93 Difference]: Finished difference Result 4123 states and 5839 transitions. [2021-12-17 16:36:41,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:36:41,530 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 [2021-12-17 16:36:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:41,533 INFO L225 Difference]: With dead ends: 4123 [2021-12-17 16:36:41,533 INFO L226 Difference]: Without dead ends: 2567 [2021-12-17 16:36:41,534 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:41,535 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 95 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 418 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 [2021-12-17 16:36:41,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 418 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:36:41,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2021-12-17 16:36:42,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2461. [2021-12-17 16:36:42,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 2460 states have (on average 1.4048780487804877) internal successors, (3456), 2460 states have internal predecessors, (3456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:42,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 3456 transitions. [2021-12-17 16:36:42,886 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 3456 transitions. Word has length 117 [2021-12-17 16:36:42,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:42,887 INFO L470 AbstractCegarLoop]: Abstraction has 2461 states and 3456 transitions. [2021-12-17 16:36:42,887 INFO L471 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) [2021-12-17 16:36:42,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 3456 transitions. [2021-12-17 16:36:42,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 16:36:42,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:42,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:42,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-17 16:36:42,888 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:42,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:42,888 INFO L85 PathProgramCache]: Analyzing trace with hash 966003247, now seen corresponding path program 1 times [2021-12-17 16:36:42,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:42,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695777708] [2021-12-17 16:36:42,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:42,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:42,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:42,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:42,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695777708] [2021-12-17 16:36:42,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695777708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:42,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:42,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:36:42,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938030261] [2021-12-17 16:36:42,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:42,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:36:42,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:42,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:36:42,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:36:42,939 INFO L87 Difference]: Start difference. First operand 2461 states and 3456 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) [2021-12-17 16:36:45,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:45,494 INFO L93 Difference]: Finished difference Result 7043 states and 9899 transitions. [2021-12-17 16:36:45,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:36:45,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) Word has length 118 [2021-12-17 16:36:45,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:45,500 INFO L225 Difference]: With dead ends: 7043 [2021-12-17 16:36:45,500 INFO L226 Difference]: Without dead ends: 4674 [2021-12-17 16:36:45,502 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:45,503 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 88 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 418 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 [2021-12-17 16:36:45,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 418 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:36:45,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2021-12-17 16:36:47,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4516. [2021-12-17 16:36:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 1.3966777408637874) internal successors, (6306), 4515 states have internal predecessors, (6306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 6306 transitions. [2021-12-17 16:36:47,985 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 6306 transitions. Word has length 118 [2021-12-17 16:36:47,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:47,985 INFO L470 AbstractCegarLoop]: Abstraction has 4516 states and 6306 transitions. [2021-12-17 16:36:47,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) [2021-12-17 16:36:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 6306 transitions. [2021-12-17 16:36:47,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 16:36:47,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:47,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:47,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-17 16:36:47,986 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:47,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:47,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1314946245, now seen corresponding path program 1 times [2021-12-17 16:36:47,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:47,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761694740] [2021-12-17 16:36:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:47,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:48,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:48,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761694740] [2021-12-17 16:36:48,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761694740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:48,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:48,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:36:48,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690142792] [2021-12-17 16:36:48,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:48,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:36:48,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:36:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:36:48,019 INFO L87 Difference]: Start difference. First operand 4516 states and 6306 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:36:52,836 INFO L93 Difference]: Finished difference Result 13052 states and 18176 transitions. [2021-12-17 16:36:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:36:52,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-17 16:36:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:36:52,848 INFO L225 Difference]: With dead ends: 13052 [2021-12-17 16:36:52,848 INFO L226 Difference]: Without dead ends: 8628 [2021-12-17 16:36:52,853 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:36:52,853 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 81 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 418 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 [2021-12-17 16:36:52,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 418 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:36:52,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8628 states. [2021-12-17 16:36:57,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8628 to 8314. [2021-12-17 16:36:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8314 states, 8313 states have (on average 1.3832551425478166) internal successors, (11499), 8313 states have internal predecessors, (11499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:57,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8314 states to 8314 states and 11499 transitions. [2021-12-17 16:36:57,661 INFO L78 Accepts]: Start accepts. Automaton has 8314 states and 11499 transitions. Word has length 119 [2021-12-17 16:36:57,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:36:57,661 INFO L470 AbstractCegarLoop]: Abstraction has 8314 states and 11499 transitions. [2021-12-17 16:36:57,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:36:57,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8314 states and 11499 transitions. [2021-12-17 16:36:57,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 16:36:57,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:36:57,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:36:57,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-17 16:36:57,662 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:36:57,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:36:57,663 INFO L85 PathProgramCache]: Analyzing trace with hash -590316034, now seen corresponding path program 1 times [2021-12-17 16:36:57,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:36:57,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693568038] [2021-12-17 16:36:57,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:36:57,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:36:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:36:57,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:36:57,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:36:57,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693568038] [2021-12-17 16:36:57,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693568038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:36:57,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:36:57,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:36:57,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514515377] [2021-12-17 16:36:57,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:36:57,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:36:57,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:36:57,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:36:57,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:36:57,695 INFO L87 Difference]: Start difference. First operand 8314 states and 11499 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:37:06,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:37:06,691 INFO L93 Difference]: Finished difference Result 24134 states and 33209 transitions. [2021-12-17 16:37:06,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:37:06,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-12-17 16:37:06,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:37:06,710 INFO L225 Difference]: With dead ends: 24134 [2021-12-17 16:37:06,710 INFO L226 Difference]: Without dead ends: 15912 [2021-12-17 16:37:06,718 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:37:06,719 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 74 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 417 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 [2021-12-17 16:37:06,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 417 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:37:06,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15912 states. [2021-12-17 16:37:15,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15912 to 15286. [2021-12-17 16:37:15,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15286 states, 15285 states have (on average 1.3654563297350344) internal successors, (20871), 15285 states have internal predecessors, (20871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:37:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15286 states to 15286 states and 20871 transitions. [2021-12-17 16:37:15,608 INFO L78 Accepts]: Start accepts. Automaton has 15286 states and 20871 transitions. Word has length 120 [2021-12-17 16:37:15,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:37:15,609 INFO L470 AbstractCegarLoop]: Abstraction has 15286 states and 20871 transitions. [2021-12-17 16:37:15,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:37:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 15286 states and 20871 transitions. [2021-12-17 16:37:15,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 16:37:15,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:37:15,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:37:15,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-17 16:37:15,610 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:37:15,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:37:15,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1670009354, now seen corresponding path program 1 times [2021-12-17 16:37:15,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:37:15,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631447494] [2021-12-17 16:37:15,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:37:15,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:37:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:37:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:37:15,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:37:15,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631447494] [2021-12-17 16:37:15,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631447494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:37:15,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:37:15,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:37:15,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889772179] [2021-12-17 16:37:15,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:37:15,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:37:15,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:37:15,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:37:15,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:37:15,647 INFO L87 Difference]: Start difference. First operand 15286 states and 20871 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:37:32,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:37:32,404 INFO L93 Difference]: Finished difference Result 44426 states and 60233 transitions. [2021-12-17 16:37:32,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:37:32,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-17 16:37:32,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:37:32,444 INFO L225 Difference]: With dead ends: 44426 [2021-12-17 16:37:32,444 INFO L226 Difference]: Without dead ends: 29232 [2021-12-17 16:37:32,460 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:37:32,461 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 64 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 415 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 [2021-12-17 16:37:32,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 415 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:37:32,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29232 states. [2021-12-17 16:37:49,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29232 to 27982. [2021-12-17 16:37:49,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27982 states, 27981 states have (on average 1.3433043851184732) internal successors, (37587), 27981 states have internal predecessors, (37587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:37:49,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27982 states to 27982 states and 37587 transitions. [2021-12-17 16:37:49,531 INFO L78 Accepts]: Start accepts. Automaton has 27982 states and 37587 transitions. Word has length 121 [2021-12-17 16:37:49,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:37:49,531 INFO L470 AbstractCegarLoop]: Abstraction has 27982 states and 37587 transitions. [2021-12-17 16:37:49,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:37:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand 27982 states and 37587 transitions. [2021-12-17 16:37:49,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 16:37:49,532 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:37:49,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:37:49,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-17 16:37:49,532 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:37:49,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:37:49,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1801378661, now seen corresponding path program 1 times [2021-12-17 16:37:49,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:37:49,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789535106] [2021-12-17 16:37:49,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:37:49,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:37:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:37:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:37:49,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:37:49,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789535106] [2021-12-17 16:37:49,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789535106] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:37:49,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:37:49,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 16:37:49,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161445881] [2021-12-17 16:37:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:37:49,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 16:37:49,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:37:49,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 16:37:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 16:37:49,580 INFO L87 Difference]: Start difference. First operand 27982 states and 37587 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:38:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:38:15,847 INFO L93 Difference]: Finished difference Result 43390 states and 58099 transitions. [2021-12-17 16:38:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 16:38:15,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-17 16:38:15,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:38:15,905 INFO L225 Difference]: With dead ends: 43390 [2021-12-17 16:38:15,905 INFO L226 Difference]: Without dead ends: 43388 [2021-12-17 16:38:15,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:38:15,917 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 309 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:38:15,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 982 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:38:15,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43388 states. [2021-12-17 16:38:33,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43388 to 28558. [2021-12-17 16:38:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28558 states, 28557 states have (on average 1.3285359106348706) internal successors, (37939), 28557 states have internal predecessors, (37939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:38:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28558 states to 28558 states and 37939 transitions. [2021-12-17 16:38:33,453 INFO L78 Accepts]: Start accepts. Automaton has 28558 states and 37939 transitions. Word has length 122 [2021-12-17 16:38:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:38:33,453 INFO L470 AbstractCegarLoop]: Abstraction has 28558 states and 37939 transitions. [2021-12-17 16:38:33,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:38:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 28558 states and 37939 transitions. [2021-12-17 16:38:33,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 16:38:33,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:38:33,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:38:33,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-17 16:38:33,454 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:38:33,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:38:33,454 INFO L85 PathProgramCache]: Analyzing trace with hash -66701655, now seen corresponding path program 1 times [2021-12-17 16:38:33,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:38:33,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423954901] [2021-12-17 16:38:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:38:33,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:38:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:38:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:38:33,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:38:33,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423954901] [2021-12-17 16:38:33,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423954901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:38:33,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:38:33,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 16:38:33,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000720001] [2021-12-17 16:38:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:38:33,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 16:38:33,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:38:33,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 16:38:33,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 16:38:33,483 INFO L87 Difference]: Start difference. First operand 28558 states and 37939 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:38:51,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:38:51,060 INFO L93 Difference]: Finished difference Result 57778 states and 76789 transitions. [2021-12-17 16:38:51,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 16:38:51,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-17 16:38:51,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:38:51,111 INFO L225 Difference]: With dead ends: 57778 [2021-12-17 16:38:51,112 INFO L226 Difference]: Without dead ends: 29312 [2021-12-17 16:38:51,134 INFO L932 BasicCegarLoop]: 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 [2021-12-17 16:38:51,135 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 107 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:38:51,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 345 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 16:38:51,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29312 states. [2021-12-17 16:39:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29312 to 29310. [2021-12-17 16:39:09,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29310 states, 29309 states have (on average 1.31410147053806) internal successors, (38515), 29309 states have internal predecessors, (38515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:39:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29310 states to 29310 states and 38515 transitions. [2021-12-17 16:39:09,502 INFO L78 Accepts]: Start accepts. Automaton has 29310 states and 38515 transitions. Word has length 122 [2021-12-17 16:39:09,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:39:09,502 INFO L470 AbstractCegarLoop]: Abstraction has 29310 states and 38515 transitions. [2021-12-17 16:39:09,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:39:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 29310 states and 38515 transitions. [2021-12-17 16:39:09,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-17 16:39:09,506 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:39:09,506 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:39:09,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-17 16:39:09,506 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-17 16:39:09,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:39:09,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1114959982, now seen corresponding path program 1 times [2021-12-17 16:39:09,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:39:09,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105688580] [2021-12-17 16:39:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:39:09,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:39:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:39:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:39:09,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:39:09,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105688580] [2021-12-17 16:39:09,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105688580] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 16:39:09,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59404115] [2021-12-17 16:39:09,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:39:09,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 16:39:09,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 16:39:09,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 16:39:09,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 16:39:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:39:09,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-17 16:39:09,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 16:39:10,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:39:10,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 16:39:12,417 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:39:12,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59404115] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 16:39:12,418 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 16:39:12,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2021-12-17 16:39:12,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372503098] [2021-12-17 16:39:12,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 16:39:12,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-17 16:39:12,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:39:12,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-17 16:39:12,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2021-12-17 16:39:12,419 INFO L87 Difference]: Start difference. First operand 29310 states and 38515 transitions. Second operand has 29 states, 29 states have (on average 14.310344827586206) internal successors, (415), 28 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Killed by 15