./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-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.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ee0c03ea7571fbf8ad45188f5238b16bf8ad4a8ddf56fc7d5d394e59af71d1f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:33:03,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:33:03,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:33:03,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:33:03,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:33:03,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:33:03,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:33:03,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:33:03,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:33:03,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:33:03,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:33:03,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:33:03,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:33:03,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:33:03,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:33:03,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:33:03,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:33:03,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:33:03,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:33:03,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:33:03,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:33:03,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:33:03,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:33:03,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:33:03,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:33:03,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:33:03,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:33:03,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:33:03,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:33:03,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:33:03,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:33:03,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:33:03,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:33:03,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:33:03,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:33:03,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:33:03,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:33:03,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:33:03,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:33:03,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:33:03,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:33:03,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:33:03,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:33:03,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:33:03,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:33:03,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:33:03,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:33:03,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:33:03,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:33:03,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:33:03,951 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:33:03,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:33:03,952 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:33:03,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:33:03,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:33:03,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:33:03,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:33:03,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:33:03,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:33:03,954 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:33:03,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:33:03,954 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:33:03,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:33:03,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:33:03,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:33:03,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:33:03,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:33:03,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:33:03,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:33:03,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:33:03,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:33:03,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:33:03,957 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:33:03,957 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:33:03,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:33:03,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:33:03,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ee0c03ea7571fbf8ad45188f5238b16bf8ad4a8ddf56fc7d5d394e59af71d1f [2021-12-16 01:33:04,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:33:04,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:33:04,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:33:04,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:33:04,218 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:33:04,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-12-16 01:33:04,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53ced7aaf/08cc6c80fe484f54afd144a78b675988/FLAGfc4c5dc18 [2021-12-16 01:33:04,857 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:33:04,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-12-16 01:33:04,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53ced7aaf/08cc6c80fe484f54afd144a78b675988/FLAGfc4c5dc18 [2021-12-16 01:33:05,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53ced7aaf/08cc6c80fe484f54afd144a78b675988 [2021-12-16 01:33:05,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:33:05,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:33:05,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:33:05,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:33:05,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:33:05,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:33:05" (1/1) ... [2021-12-16 01:33:05,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269d56c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:05, skipping insertion in model container [2021-12-16 01:33:05,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:33:05" (1/1) ... [2021-12-16 01:33:05,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:33:05,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:33:05,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37768,37781] [2021-12-16 01:33:05,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53783,53796] [2021-12-16 01:33:05,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61800,61813] [2021-12-16 01:33:05,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65782,65795] [2021-12-16 01:33:05,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69649,69662] [2021-12-16 01:33:05,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86712,86725] [2021-12-16 01:33:05,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94766,94779] [2021-12-16 01:33:05,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98785,98798] [2021-12-16 01:33:05,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102689,102702] [2021-12-16 01:33:05,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[107203,107216] [2021-12-16 01:33:05,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[111131,111144] [2021-12-16 01:33:05,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[115150,115163] [2021-12-16 01:33:05,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[119054,119067] [2021-12-16 01:33:05,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[123189,123202] [2021-12-16 01:33:05,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127260,127273] [2021-12-16 01:33:05,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[131260,131273] [2021-12-16 01:33:05,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:33:05,946 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:33:06,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37768,37781] [2021-12-16 01:33:06,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53783,53796] [2021-12-16 01:33:06,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61800,61813] [2021-12-16 01:33:06,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65782,65795] [2021-12-16 01:33:06,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69649,69662] [2021-12-16 01:33:06,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86712,86725] [2021-12-16 01:33:06,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94766,94779] [2021-12-16 01:33:06,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98785,98798] [2021-12-16 01:33:06,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102689,102702] [2021-12-16 01:33:06,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[107203,107216] [2021-12-16 01:33:06,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[111131,111144] [2021-12-16 01:33:06,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[115150,115163] [2021-12-16 01:33:06,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[119054,119067] [2021-12-16 01:33:06,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[123189,123202] [2021-12-16 01:33:06,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127260,127273] [2021-12-16 01:33:06,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[131260,131273] [2021-12-16 01:33:06,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:33:06,261 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:33:06,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06 WrapperNode [2021-12-16 01:33:06,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:33:06,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:33:06,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:33:06,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:33:06,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,418 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5851 [2021-12-16 01:33:06,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:33:06,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:33:06,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:33:06,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:33:06,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:33:06,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:33:06,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:33:06,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:33:06,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (1/1) ... [2021-12-16 01:33:06,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:33:06,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:33:06,573 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) [2021-12-16 01:33:06,599 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 [2021-12-16 01:33:06,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:33:06,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:33:06,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:33:06,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:33:06,939 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:33:06,944 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:33:09,038 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:33:09,054 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:33:09,055 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 01:33:09,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:33:09 BoogieIcfgContainer [2021-12-16 01:33:09,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:33:09,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:33:09,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:33:09,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:33:09,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:33:05" (1/3) ... [2021-12-16 01:33:09,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a714ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:33:09, skipping insertion in model container [2021-12-16 01:33:09,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:06" (2/3) ... [2021-12-16 01:33:09,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a714ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:33:09, skipping insertion in model container [2021-12-16 01:33:09,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:33:09" (3/3) ... [2021-12-16 01:33:09,065 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-12-16 01:33:09,069 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:33:09,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-12-16 01:33:09,113 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:33:09,119 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 [2021-12-16 01:33:09,119 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-12-16 01:33:09,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:09,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-16 01:33:09,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:09,169 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] [2021-12-16 01:33:09,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:09,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:09,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1494001524, now seen corresponding path program 1 times [2021-12-16 01:33:09,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:09,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385497806] [2021-12-16 01:33:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:09,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:09,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:09,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385497806] [2021-12-16 01:33:09,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385497806] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:09,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:09,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:09,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303751577] [2021-12-16 01:33:09,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:09,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:09,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:09,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:09,614 INFO L87 Difference]: Start difference. First operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 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 14.6) 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) [2021-12-16 01:33:10,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:10,609 INFO L93 Difference]: Finished difference Result 1628 states and 2780 transitions. [2021-12-16 01:33:10,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:10,612 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 [2021-12-16 01:33:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:10,632 INFO L225 Difference]: With dead ends: 1628 [2021-12-16 01:33:10,632 INFO L226 Difference]: Without dead ends: 1062 [2021-12-16 01:33:10,640 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 [2021-12-16 01:33:10,647 INFO L933 BasicCegarLoop]: 977 mSDtfsCounter, 5204 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5204 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:10,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5204 Valid, 1055 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-16 01:33:10,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2021-12-16 01:33:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1062. [2021-12-16 01:33:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1046 states have (on average 1.282982791586998) internal successors, (1342), 1061 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1342 transitions. [2021-12-16 01:33:10,751 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1342 transitions. Word has length 73 [2021-12-16 01:33:10,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:10,751 INFO L470 AbstractCegarLoop]: Abstraction has 1062 states and 1342 transitions. [2021-12-16 01:33:10,752 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) [2021-12-16 01:33:10,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1342 transitions. [2021-12-16 01:33:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-16 01:33:10,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:10,757 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] [2021-12-16 01:33:10,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:33:10,758 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:10,761 INFO L85 PathProgramCache]: Analyzing trace with hash 730465380, now seen corresponding path program 1 times [2021-12-16 01:33:10,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:10,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505774115] [2021-12-16 01:33:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:10,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:10,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:10,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505774115] [2021-12-16 01:33:10,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505774115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:10,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:10,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:10,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354376089] [2021-12-16 01:33:10,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:10,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:10,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:10,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:10,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:10,960 INFO L87 Difference]: Start difference. First operand 1062 states and 1342 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) [2021-12-16 01:33:11,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:11,358 INFO L93 Difference]: Finished difference Result 1200 states and 1507 transitions. [2021-12-16 01:33:11,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:11,359 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 [2021-12-16 01:33:11,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:11,362 INFO L225 Difference]: With dead ends: 1200 [2021-12-16 01:33:11,362 INFO L226 Difference]: Without dead ends: 686 [2021-12-16 01:33:11,363 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 [2021-12-16 01:33:11,365 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 2481 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:11,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2481 Valid, 468 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:33:11,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-12-16 01:33:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2021-12-16 01:33:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 670 states have (on average 1.2850746268656716) internal successors, (861), 685 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 861 transitions. [2021-12-16 01:33:11,393 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 861 transitions. Word has length 73 [2021-12-16 01:33:11,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:11,394 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 861 transitions. [2021-12-16 01:33:11,394 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) [2021-12-16 01:33:11,395 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 861 transitions. [2021-12-16 01:33:11,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-16 01:33:11,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:11,396 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] [2021-12-16 01:33:11,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:33:11,397 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:11,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1583086451, now seen corresponding path program 1 times [2021-12-16 01:33:11,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:11,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252322750] [2021-12-16 01:33:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:11,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:11,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:11,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252322750] [2021-12-16 01:33:11,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252322750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:11,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:11,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:11,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134865569] [2021-12-16 01:33:11,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:11,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:11,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:11,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:11,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:11,514 INFO L87 Difference]: Start difference. First operand 686 states and 861 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) [2021-12-16 01:33:12,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:12,040 INFO L93 Difference]: Finished difference Result 1234 states and 1572 transitions. [2021-12-16 01:33:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:12,041 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 [2021-12-16 01:33:12,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:12,044 INFO L225 Difference]: With dead ends: 1234 [2021-12-16 01:33:12,044 INFO L226 Difference]: Without dead ends: 875 [2021-12-16 01:33:12,045 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 [2021-12-16 01:33:12,046 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 2907 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:12,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2907 Valid, 618 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:33:12,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2021-12-16 01:33:12,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 802. [2021-12-16 01:33:12,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 786 states have (on average 1.340966921119593) internal successors, (1054), 801 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1054 transitions. [2021-12-16 01:33:12,079 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1054 transitions. Word has length 73 [2021-12-16 01:33:12,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:12,079 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 1054 transitions. [2021-12-16 01:33:12,080 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) [2021-12-16 01:33:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1054 transitions. [2021-12-16 01:33:12,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-16 01:33:12,081 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:12,082 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] [2021-12-16 01:33:12,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:33:12,082 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:12,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:12,083 INFO L85 PathProgramCache]: Analyzing trace with hash -700009990, now seen corresponding path program 1 times [2021-12-16 01:33:12,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:12,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997473003] [2021-12-16 01:33:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:12,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:12,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:12,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:12,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997473003] [2021-12-16 01:33:12,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997473003] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:12,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:12,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:12,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014004400] [2021-12-16 01:33:12,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:12,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:12,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:12,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:12,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:12,152 INFO L87 Difference]: Start difference. First operand 802 states and 1054 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) [2021-12-16 01:33:12,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:12,462 INFO L93 Difference]: Finished difference Result 1126 states and 1489 transitions. [2021-12-16 01:33:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:12,463 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 [2021-12-16 01:33:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:12,468 INFO L225 Difference]: With dead ends: 1126 [2021-12-16 01:33:12,468 INFO L226 Difference]: Without dead ends: 691 [2021-12-16 01:33:12,469 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 [2021-12-16 01:33:12,472 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1844 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:12,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1844 Valid, 368 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:33:12,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2021-12-16 01:33:12,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2021-12-16 01:33:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 675 states have (on average 1.3555555555555556) internal successors, (915), 690 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:12,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 915 transitions. [2021-12-16 01:33:12,502 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 915 transitions. Word has length 75 [2021-12-16 01:33:12,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:12,503 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 915 transitions. [2021-12-16 01:33:12,503 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) [2021-12-16 01:33:12,503 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 915 transitions. [2021-12-16 01:33:12,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-16 01:33:12,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:12,505 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] [2021-12-16 01:33:12,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:33:12,505 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:12,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:12,506 INFO L85 PathProgramCache]: Analyzing trace with hash 137435073, now seen corresponding path program 1 times [2021-12-16 01:33:12,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:12,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995164450] [2021-12-16 01:33:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:12,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:12,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:12,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:12,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995164450] [2021-12-16 01:33:12,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995164450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:12,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:12,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:12,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315278049] [2021-12-16 01:33:12,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:12,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:12,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:12,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:12,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:12,595 INFO L87 Difference]: Start difference. First operand 691 states and 915 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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) [2021-12-16 01:33:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:12,846 INFO L93 Difference]: Finished difference Result 966 states and 1281 transitions. [2021-12-16 01:33:12,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:12,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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 [2021-12-16 01:33:12,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:12,850 INFO L225 Difference]: With dead ends: 966 [2021-12-16 01:33:12,850 INFO L226 Difference]: Without dead ends: 587 [2021-12-16 01:33:12,851 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 [2021-12-16 01:33:12,852 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 1533 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:12,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 334 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:33:12,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-12-16 01:33:12,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2021-12-16 01:33:12,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.362521891418564) internal successors, (778), 586 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 778 transitions. [2021-12-16 01:33:12,880 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 778 transitions. Word has length 77 [2021-12-16 01:33:12,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:12,881 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 778 transitions. [2021-12-16 01:33:12,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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) [2021-12-16 01:33:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 778 transitions. [2021-12-16 01:33:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:12,882 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:12,883 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] [2021-12-16 01:33:12,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:33:12,883 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:12,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:12,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1748744325, now seen corresponding path program 1 times [2021-12-16 01:33:12,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:12,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246640364] [2021-12-16 01:33:12,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:12,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:13,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:13,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246640364] [2021-12-16 01:33:13,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246640364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:13,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:13,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:33:13,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474724731] [2021-12-16 01:33:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:13,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 01:33:13,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:13,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 01:33:13,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-16 01:33:13,055 INFO L87 Difference]: Start difference. First operand 587 states and 778 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2021-12-16 01:33:13,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:13,557 INFO L93 Difference]: Finished difference Result 1128 states and 1475 transitions. [2021-12-16 01:33:13,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 01:33:13,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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 [2021-12-16 01:33:13,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:13,561 INFO L225 Difference]: With dead ends: 1128 [2021-12-16 01:33:13,561 INFO L226 Difference]: Without dead ends: 836 [2021-12-16 01:33:13,562 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 [2021-12-16 01:33:13,563 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 2507 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:13,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2507 Valid, 753 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 01:33:13,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-12-16 01:33:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 587. [2021-12-16 01:33:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.36077057793345) internal successors, (777), 586 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 777 transitions. [2021-12-16 01:33:13,594 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 777 transitions. Word has length 79 [2021-12-16 01:33:13,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:13,595 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 777 transitions. [2021-12-16 01:33:13,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2021-12-16 01:33:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 777 transitions. [2021-12-16 01:33:13,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:13,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:13,596 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] [2021-12-16 01:33:13,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:33:13,597 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:13,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:13,597 INFO L85 PathProgramCache]: Analyzing trace with hash -883245509, now seen corresponding path program 1 times [2021-12-16 01:33:13,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:13,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201011298] [2021-12-16 01:33:13,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:13,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:13,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:13,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201011298] [2021-12-16 01:33:13,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201011298] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:13,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:13,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:13,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147329685] [2021-12-16 01:33:13,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:13,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:13,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:13,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:13,722 INFO L87 Difference]: Start difference. First operand 587 states and 777 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) [2021-12-16 01:33:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:14,591 INFO L93 Difference]: Finished difference Result 1355 states and 1863 transitions. [2021-12-16 01:33:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:14,591 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 [2021-12-16 01:33:14,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:14,596 INFO L225 Difference]: With dead ends: 1355 [2021-12-16 01:33:14,596 INFO L226 Difference]: Without dead ends: 1198 [2021-12-16 01:33:14,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-16 01:33:14,597 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 3343 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:14,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3343 Valid, 1520 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:14,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2021-12-16 01:33:14,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 587. [2021-12-16 01:33:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.3590192644483363) internal successors, (776), 586 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 776 transitions. [2021-12-16 01:33:14,631 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 776 transitions. Word has length 79 [2021-12-16 01:33:14,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:14,632 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 776 transitions. [2021-12-16 01:33:14,632 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) [2021-12-16 01:33:14,632 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 776 transitions. [2021-12-16 01:33:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:14,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:14,633 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] [2021-12-16 01:33:14,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 01:33:14,634 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:14,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:14,635 INFO L85 PathProgramCache]: Analyzing trace with hash -876086789, now seen corresponding path program 1 times [2021-12-16 01:33:14,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:14,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817591439] [2021-12-16 01:33:14,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:14,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:14,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:14,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817591439] [2021-12-16 01:33:14,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817591439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:14,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:14,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:14,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179248531] [2021-12-16 01:33:14,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:14,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:14,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:14,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:14,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:14,796 INFO L87 Difference]: Start difference. First operand 587 states and 776 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) [2021-12-16 01:33:15,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:15,475 INFO L93 Difference]: Finished difference Result 987 states and 1350 transitions. [2021-12-16 01:33:15,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:15,476 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 [2021-12-16 01:33:15,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:15,479 INFO L225 Difference]: With dead ends: 987 [2021-12-16 01:33:15,479 INFO L226 Difference]: Without dead ends: 787 [2021-12-16 01:33:15,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-16 01:33:15,480 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 2580 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:15,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 1347 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:33:15,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-12-16 01:33:15,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 587. [2021-12-16 01:33:15,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.3572679509632224) internal successors, (775), 586 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:15,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 775 transitions. [2021-12-16 01:33:15,536 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 775 transitions. Word has length 79 [2021-12-16 01:33:15,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:15,536 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 775 transitions. [2021-12-16 01:33:15,536 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) [2021-12-16 01:33:15,537 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 775 transitions. [2021-12-16 01:33:15,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-16 01:33:15,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:15,538 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] [2021-12-16 01:33:15,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 01:33:15,539 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:15,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:15,539 INFO L85 PathProgramCache]: Analyzing trace with hash -178984548, now seen corresponding path program 1 times [2021-12-16 01:33:15,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:15,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916792163] [2021-12-16 01:33:15,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:15,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:15,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:15,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916792163] [2021-12-16 01:33:15,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916792163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:15,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:15,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:15,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011492287] [2021-12-16 01:33:15,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:15,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:15,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:15,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:15,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:15,655 INFO L87 Difference]: Start difference. First operand 587 states and 775 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) [2021-12-16 01:33:16,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:16,535 INFO L93 Difference]: Finished difference Result 1310 states and 1794 transitions. [2021-12-16 01:33:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:16,535 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 [2021-12-16 01:33:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:16,540 INFO L225 Difference]: With dead ends: 1310 [2021-12-16 01:33:16,540 INFO L226 Difference]: Without dead ends: 1172 [2021-12-16 01:33:16,541 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 [2021-12-16 01:33:16,542 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 3122 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:16,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3122 Valid, 1595 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:16,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2021-12-16 01:33:16,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 587. [2021-12-16 01:33:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.3555166374781087) internal successors, (774), 586 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:16,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 774 transitions. [2021-12-16 01:33:16,584 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 774 transitions. Word has length 80 [2021-12-16 01:33:16,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:16,584 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 774 transitions. [2021-12-16 01:33:16,584 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) [2021-12-16 01:33:16,585 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 774 transitions. [2021-12-16 01:33:16,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:16,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:16,586 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] [2021-12-16 01:33:16,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 01:33:16,587 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:16,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:16,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1495415488, now seen corresponding path program 1 times [2021-12-16 01:33:16,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:16,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343639814] [2021-12-16 01:33:16,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:16,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:16,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:16,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343639814] [2021-12-16 01:33:16,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343639814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:16,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:16,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:16,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453071382] [2021-12-16 01:33:16,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:16,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:16,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:16,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:16,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:16,723 INFO L87 Difference]: Start difference. First operand 587 states and 774 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) [2021-12-16 01:33:17,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:17,364 INFO L93 Difference]: Finished difference Result 1059 states and 1442 transitions. [2021-12-16 01:33:17,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 01:33:17,365 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 [2021-12-16 01:33:17,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:17,368 INFO L225 Difference]: With dead ends: 1059 [2021-12-16 01:33:17,368 INFO L226 Difference]: Without dead ends: 787 [2021-12-16 01:33:17,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-12-16 01:33:17,369 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1368 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:17,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 1430 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:33:17,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-12-16 01:33:17,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 587. [2021-12-16 01:33:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.3520140105078808) internal successors, (772), 586 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:17,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 772 transitions. [2021-12-16 01:33:17,412 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 772 transitions. Word has length 81 [2021-12-16 01:33:17,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:17,412 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 772 transitions. [2021-12-16 01:33:17,413 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) [2021-12-16 01:33:17,413 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 772 transitions. [2021-12-16 01:33:17,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:17,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:17,415 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] [2021-12-16 01:33:17,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 01:33:17,416 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:17,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:17,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1996016320, now seen corresponding path program 1 times [2021-12-16 01:33:17,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:17,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727512292] [2021-12-16 01:33:17,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:17,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:17,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:17,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727512292] [2021-12-16 01:33:17,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727512292] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:17,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:17,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:17,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733885426] [2021-12-16 01:33:17,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:17,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:17,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:17,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:17,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:17,550 INFO L87 Difference]: Start difference. First operand 587 states and 772 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) [2021-12-16 01:33:18,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:18,544 INFO L93 Difference]: Finished difference Result 1375 states and 1882 transitions. [2021-12-16 01:33:18,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:18,544 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 [2021-12-16 01:33:18,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:18,548 INFO L225 Difference]: With dead ends: 1375 [2021-12-16 01:33:18,549 INFO L226 Difference]: Without dead ends: 1198 [2021-12-16 01:33:18,549 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 [2021-12-16 01:33:18,550 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 2450 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:18,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2450 Valid, 2214 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 01:33:18,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2021-12-16 01:33:18,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 587. [2021-12-16 01:33:18,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.3485113835376532) internal successors, (770), 586 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:18,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 770 transitions. [2021-12-16 01:33:18,594 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 770 transitions. Word has length 81 [2021-12-16 01:33:18,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:18,595 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 770 transitions. [2021-12-16 01:33:18,595 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) [2021-12-16 01:33:18,595 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 770 transitions. [2021-12-16 01:33:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:18,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:18,596 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] [2021-12-16 01:33:18,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 01:33:18,597 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)] === [2021-12-16 01:33:18,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:18,597 INFO L85 PathProgramCache]: Analyzing trace with hash -583258688, now seen corresponding path program 1 times [2021-12-16 01:33:18,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:18,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722803251] [2021-12-16 01:33:18,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:18,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:18,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:18,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722803251] [2021-12-16 01:33:18,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722803251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:18,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:18,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:18,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889970061] [2021-12-16 01:33:18,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:18,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:18,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:18,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:18,733 INFO L87 Difference]: Start difference. First operand 587 states and 770 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) [2021-12-16 01:33:19,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:19,603 INFO L93 Difference]: Finished difference Result 1321 states and 1802 transitions. [2021-12-16 01:33:19,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:19,603 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 [2021-12-16 01:33:19,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:19,608 INFO L225 Difference]: With dead ends: 1321 [2021-12-16 01:33:19,608 INFO L226 Difference]: Without dead ends: 1172 [2021-12-16 01:33:19,609 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 [2021-12-16 01:33:19,609 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 2915 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2915 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:19,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2915 Valid, 1751 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2021-12-16 01:33:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 587. [2021-12-16 01:33:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.3450087565674256) internal successors, (768), 586 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 768 transitions. [2021-12-16 01:33:19,664 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 768 transitions. Word has length 81 [2021-12-16 01:33:19,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:19,665 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 768 transitions. [2021-12-16 01:33:19,665 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) [2021-12-16 01:33:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 768 transitions. [2021-12-16 01:33:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:19,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:19,667 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] [2021-12-16 01:33:19,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 01:33:19,667 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:19,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:19,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1694349184, now seen corresponding path program 1 times [2021-12-16 01:33:19,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:19,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244592846] [2021-12-16 01:33:19,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:19,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:19,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:19,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244592846] [2021-12-16 01:33:19,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244592846] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:19,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:19,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:19,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426314003] [2021-12-16 01:33:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:19,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:19,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:19,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:19,804 INFO L87 Difference]: Start difference. First operand 587 states and 768 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) [2021-12-16 01:33:20,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:20,725 INFO L93 Difference]: Finished difference Result 1314 states and 1791 transitions. [2021-12-16 01:33:20,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:20,726 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 [2021-12-16 01:33:20,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:20,730 INFO L225 Difference]: With dead ends: 1314 [2021-12-16 01:33:20,730 INFO L226 Difference]: Without dead ends: 1172 [2021-12-16 01:33:20,731 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 [2021-12-16 01:33:20,732 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 2908 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2908 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:20,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2908 Valid, 1749 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:20,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2021-12-16 01:33:20,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 587. [2021-12-16 01:33:20,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.3432574430823117) internal successors, (767), 586 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:20,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 767 transitions. [2021-12-16 01:33:20,782 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 767 transitions. Word has length 81 [2021-12-16 01:33:20,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:20,782 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 767 transitions. [2021-12-16 01:33:20,782 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) [2021-12-16 01:33:20,783 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 767 transitions. [2021-12-16 01:33:20,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:20,784 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:20,784 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] [2021-12-16 01:33:20,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 01:33:20,784 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:20,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:20,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1372385248, now seen corresponding path program 1 times [2021-12-16 01:33:20,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:20,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116430403] [2021-12-16 01:33:20,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:20,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:20,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:20,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116430403] [2021-12-16 01:33:20,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116430403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:20,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:20,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:20,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230399783] [2021-12-16 01:33:20,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:20,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:20,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:20,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:20,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:20,902 INFO L87 Difference]: Start difference. First operand 587 states and 767 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) [2021-12-16 01:33:21,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:21,764 INFO L93 Difference]: Finished difference Result 1364 states and 1861 transitions. [2021-12-16 01:33:21,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:21,764 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 [2021-12-16 01:33:21,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:21,768 INFO L225 Difference]: With dead ends: 1364 [2021-12-16 01:33:21,769 INFO L226 Difference]: Without dead ends: 1198 [2021-12-16 01:33:21,769 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 [2021-12-16 01:33:21,770 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 2159 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:21,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2159 Valid, 2096 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:21,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2021-12-16 01:33:21,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 587. [2021-12-16 01:33:21,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 1.341506129597198) internal successors, (766), 586 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 766 transitions. [2021-12-16 01:33:21,822 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 766 transitions. Word has length 81 [2021-12-16 01:33:21,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:21,822 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 766 transitions. [2021-12-16 01:33:21,823 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) [2021-12-16 01:33:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 766 transitions. [2021-12-16 01:33:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:21,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:21,824 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] [2021-12-16 01:33:21,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 01:33:21,824 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:21,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:21,825 INFO L85 PathProgramCache]: Analyzing trace with hash 845637120, now seen corresponding path program 1 times [2021-12-16 01:33:21,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:21,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502788991] [2021-12-16 01:33:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:21,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:22,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:22,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502788991] [2021-12-16 01:33:22,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502788991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:22,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:22,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:33:22,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24540460] [2021-12-16 01:33:22,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:22,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:22,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:22,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:22,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:22,018 INFO L87 Difference]: Start difference. First operand 587 states and 766 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:23,872 INFO L93 Difference]: Finished difference Result 2152 states and 3004 transitions. [2021-12-16 01:33:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:33:23,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-16 01:33:23,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:23,883 INFO L225 Difference]: With dead ends: 2152 [2021-12-16 01:33:23,883 INFO L226 Difference]: Without dead ends: 2010 [2021-12-16 01:33:23,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:33:23,886 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 4881 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:23,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4881 Valid, 2734 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:33:23,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2021-12-16 01:33:23,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 592. [2021-12-16 01:33:23,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 576 states have (on average 1.3385416666666667) internal successors, (771), 591 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 771 transitions. [2021-12-16 01:33:23,951 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 771 transitions. Word has length 81 [2021-12-16 01:33:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:23,952 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 771 transitions. [2021-12-16 01:33:23,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 771 transitions. [2021-12-16 01:33:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:23,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:23,953 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] [2021-12-16 01:33:23,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 01:33:23,954 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:23,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:23,954 INFO L85 PathProgramCache]: Analyzing trace with hash 962867702, now seen corresponding path program 1 times [2021-12-16 01:33:23,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:23,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468097519] [2021-12-16 01:33:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:23,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:24,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:24,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468097519] [2021-12-16 01:33:24,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468097519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:24,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:24,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:24,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949963251] [2021-12-16 01:33:24,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:24,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:24,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:24,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:24,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:24,094 INFO L87 Difference]: Start difference. First operand 592 states and 771 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) [2021-12-16 01:33:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:24,937 INFO L93 Difference]: Finished difference Result 1281 states and 1735 transitions. [2021-12-16 01:33:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:24,937 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 [2021-12-16 01:33:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:24,941 INFO L225 Difference]: With dead ends: 1281 [2021-12-16 01:33:24,941 INFO L226 Difference]: Without dead ends: 1152 [2021-12-16 01:33:24,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:24,950 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 2508 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:24,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2508 Valid, 2048 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-12-16 01:33:25,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 591. [2021-12-16 01:33:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 575 states have (on average 1.337391304347826) internal successors, (769), 590 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:25,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 769 transitions. [2021-12-16 01:33:25,022 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 769 transitions. Word has length 81 [2021-12-16 01:33:25,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:25,023 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 769 transitions. [2021-12-16 01:33:25,023 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) [2021-12-16 01:33:25,023 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 769 transitions. [2021-12-16 01:33:25,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-16 01:33:25,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:25,026 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] [2021-12-16 01:33:25,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 01:33:25,027 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)] === [2021-12-16 01:33:25,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:25,027 INFO L85 PathProgramCache]: Analyzing trace with hash 547042711, now seen corresponding path program 1 times [2021-12-16 01:33:25,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:25,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544477381] [2021-12-16 01:33:25,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:25,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:25,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:25,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544477381] [2021-12-16 01:33:25,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544477381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:25,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:25,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:25,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986172591] [2021-12-16 01:33:25,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:25,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:25,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:25,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:25,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:25,167 INFO L87 Difference]: Start difference. First operand 591 states and 769 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:26,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:26,075 INFO L93 Difference]: Finished difference Result 1286 states and 1739 transitions. [2021-12-16 01:33:26,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:26,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-16 01:33:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:26,078 INFO L225 Difference]: With dead ends: 1286 [2021-12-16 01:33:26,079 INFO L226 Difference]: Without dead ends: 1152 [2021-12-16 01:33:26,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:26,080 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 2548 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2548 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:26,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2548 Valid, 2015 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:26,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-12-16 01:33:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 591. [2021-12-16 01:33:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 575 states have (on average 1.333913043478261) internal successors, (767), 590 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 767 transitions. [2021-12-16 01:33:26,147 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 767 transitions. Word has length 82 [2021-12-16 01:33:26,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:26,148 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 767 transitions. [2021-12-16 01:33:26,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 767 transitions. [2021-12-16 01:33:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-16 01:33:26,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:26,150 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] [2021-12-16 01:33:26,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 01:33:26,150 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:26,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:26,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1592889193, now seen corresponding path program 1 times [2021-12-16 01:33:26,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:26,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992985220] [2021-12-16 01:33:26,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:26,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:26,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:26,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992985220] [2021-12-16 01:33:26,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992985220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:26,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:26,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:26,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994940614] [2021-12-16 01:33:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:26,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:26,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:26,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:26,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:26,293 INFO L87 Difference]: Start difference. First operand 591 states and 767 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:27,137 INFO L93 Difference]: Finished difference Result 1283 states and 1734 transitions. [2021-12-16 01:33:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:27,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-16 01:33:27,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:27,144 INFO L225 Difference]: With dead ends: 1283 [2021-12-16 01:33:27,144 INFO L226 Difference]: Without dead ends: 1152 [2021-12-16 01:33:27,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:27,146 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 2496 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:27,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2496 Valid, 2047 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:27,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-12-16 01:33:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 591. [2021-12-16 01:33:27,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 575 states have (on average 1.3321739130434782) internal successors, (766), 590 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 766 transitions. [2021-12-16 01:33:27,241 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 766 transitions. Word has length 82 [2021-12-16 01:33:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:27,243 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 766 transitions. [2021-12-16 01:33:27,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 766 transitions. [2021-12-16 01:33:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-16 01:33:27,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:27,245 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] [2021-12-16 01:33:27,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 01:33:27,245 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:27,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:27,246 INFO L85 PathProgramCache]: Analyzing trace with hash 906756407, now seen corresponding path program 1 times [2021-12-16 01:33:27,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:27,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048744335] [2021-12-16 01:33:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:27,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:27,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:27,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048744335] [2021-12-16 01:33:27,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048744335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:27,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:27,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:27,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651256269] [2021-12-16 01:33:27,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:27,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:27,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:27,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:27,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:27,374 INFO L87 Difference]: Start difference. First operand 591 states and 766 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:28,262 INFO L93 Difference]: Finished difference Result 1283 states and 1733 transitions. [2021-12-16 01:33:28,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:28,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-16 01:33:28,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:28,265 INFO L225 Difference]: With dead ends: 1283 [2021-12-16 01:33:28,265 INFO L226 Difference]: Without dead ends: 1152 [2021-12-16 01:33:28,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:28,266 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 2410 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:28,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2410 Valid, 2237 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-12-16 01:33:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 591. [2021-12-16 01:33:28,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 575 states have (on average 1.3304347826086957) internal successors, (765), 590 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 765 transitions. [2021-12-16 01:33:28,326 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 765 transitions. Word has length 82 [2021-12-16 01:33:28,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:28,327 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 765 transitions. [2021-12-16 01:33:28,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 765 transitions. [2021-12-16 01:33:28,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-16 01:33:28,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:28,329 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] [2021-12-16 01:33:28,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 01:33:28,329 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:28,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:28,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1674020809, now seen corresponding path program 1 times [2021-12-16 01:33:28,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:28,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320737119] [2021-12-16 01:33:28,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:28,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:28,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:28,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:28,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320737119] [2021-12-16 01:33:28,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320737119] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:28,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:28,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:33:28,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440830656] [2021-12-16 01:33:28,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:28,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:28,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:28,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:28,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:28,503 INFO L87 Difference]: Start difference. First operand 591 states and 765 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:30,154 INFO L93 Difference]: Finished difference Result 1950 states and 2695 transitions. [2021-12-16 01:33:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:33:30,154 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-16 01:33:30,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:30,159 INFO L225 Difference]: With dead ends: 1950 [2021-12-16 01:33:30,159 INFO L226 Difference]: Without dead ends: 1819 [2021-12-16 01:33:30,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:33:30,160 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 5192 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5192 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:30,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5192 Valid, 2232 Invalid, 2291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:33:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2021-12-16 01:33:30,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 596. [2021-12-16 01:33:30,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 580 states have (on average 1.3275862068965518) internal successors, (770), 595 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 770 transitions. [2021-12-16 01:33:30,231 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 770 transitions. Word has length 82 [2021-12-16 01:33:30,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:30,232 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 770 transitions. [2021-12-16 01:33:30,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 770 transitions. [2021-12-16 01:33:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-16 01:33:30,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:30,234 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] [2021-12-16 01:33:30,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 01:33:30,234 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:30,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:30,235 INFO L85 PathProgramCache]: Analyzing trace with hash 497143476, now seen corresponding path program 1 times [2021-12-16 01:33:30,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:30,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713146534] [2021-12-16 01:33:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:30,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:30,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:30,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713146534] [2021-12-16 01:33:30,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713146534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:30,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:30,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:30,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695260919] [2021-12-16 01:33:30,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:30,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:30,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:30,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:30,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:30,329 INFO L87 Difference]: Start difference. First operand 596 states and 770 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:31,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:31,194 INFO L93 Difference]: Finished difference Result 1318 states and 1785 transitions. [2021-12-16 01:33:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:31,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-16 01:33:31,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:31,201 INFO L225 Difference]: With dead ends: 1318 [2021-12-16 01:33:31,202 INFO L226 Difference]: Without dead ends: 1176 [2021-12-16 01:33:31,202 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 [2021-12-16 01:33:31,203 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 2025 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:31,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2025 Valid, 1989 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:31,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2021-12-16 01:33:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 591. [2021-12-16 01:33:31,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 575 states have (on average 1.328695652173913) internal successors, (764), 590 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 764 transitions. [2021-12-16 01:33:31,259 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 764 transitions. Word has length 82 [2021-12-16 01:33:31,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:31,259 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 764 transitions. [2021-12-16 01:33:31,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:31,259 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 764 transitions. [2021-12-16 01:33:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:31,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:31,261 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] [2021-12-16 01:33:31,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-16 01:33:31,261 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:31,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:31,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2120283973, now seen corresponding path program 1 times [2021-12-16 01:33:31,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:31,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540241026] [2021-12-16 01:33:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:31,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:31,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:31,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540241026] [2021-12-16 01:33:31,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540241026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:31,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:31,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:31,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273471731] [2021-12-16 01:33:31,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:31,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:31,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:31,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:31,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:31,380 INFO L87 Difference]: Start difference. First operand 591 states and 764 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:32,293 INFO L93 Difference]: Finished difference Result 1153 states and 1537 transitions. [2021-12-16 01:33:32,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:32,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2021-12-16 01:33:32,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:32,297 INFO L225 Difference]: With dead ends: 1153 [2021-12-16 01:33:32,297 INFO L226 Difference]: Without dead ends: 1147 [2021-12-16 01:33:32,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:32,298 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 2470 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:32,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2470 Valid, 2079 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-12-16 01:33:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 591. [2021-12-16 01:33:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 575 states have (on average 1.325217391304348) internal successors, (762), 590 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 762 transitions. [2021-12-16 01:33:32,362 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 762 transitions. Word has length 83 [2021-12-16 01:33:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:32,362 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 762 transitions. [2021-12-16 01:33:32,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 762 transitions. [2021-12-16 01:33:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:32,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:32,363 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] [2021-12-16 01:33:32,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-16 01:33:32,364 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash -647233403, now seen corresponding path program 1 times [2021-12-16 01:33:32,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:32,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546817991] [2021-12-16 01:33:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:32,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:32,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:32,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:32,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546817991] [2021-12-16 01:33:32,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546817991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:32,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:32,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:32,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788343927] [2021-12-16 01:33:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:32,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:32,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:32,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:32,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:32,477 INFO L87 Difference]: Start difference. First operand 591 states and 762 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:33,353 INFO L93 Difference]: Finished difference Result 1195 states and 1594 transitions. [2021-12-16 01:33:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:33,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2021-12-16 01:33:33,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:33,357 INFO L225 Difference]: With dead ends: 1195 [2021-12-16 01:33:33,357 INFO L226 Difference]: Without dead ends: 1176 [2021-12-16 01:33:33,357 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 [2021-12-16 01:33:33,358 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 2012 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:33,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2012 Valid, 1983 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:33,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2021-12-16 01:33:33,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 591. [2021-12-16 01:33:33,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 575 states have (on average 1.3217391304347825) internal successors, (760), 590 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 760 transitions. [2021-12-16 01:33:33,432 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 760 transitions. Word has length 83 [2021-12-16 01:33:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:33,433 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 760 transitions. [2021-12-16 01:33:33,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 760 transitions. [2021-12-16 01:33:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:33,434 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:33,434 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] [2021-12-16 01:33:33,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-16 01:33:33,435 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)] === [2021-12-16 01:33:33,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:33,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1292109307, now seen corresponding path program 1 times [2021-12-16 01:33:33,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:33,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338006665] [2021-12-16 01:33:33,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:33,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:33,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:33,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338006665] [2021-12-16 01:33:33,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338006665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:33,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:33,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:33:33,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537816614] [2021-12-16 01:33:33,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:33,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:33,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:33,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:33,591 INFO L87 Difference]: Start difference. First operand 591 states and 760 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:35,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:35,212 INFO L93 Difference]: Finished difference Result 1823 states and 2498 transitions. [2021-12-16 01:33:35,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:33:35,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-12-16 01:33:35,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:35,219 INFO L225 Difference]: With dead ends: 1823 [2021-12-16 01:33:35,219 INFO L226 Difference]: Without dead ends: 1817 [2021-12-16 01:33:35,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:33:35,221 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 5053 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5053 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:35,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5053 Valid, 2024 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 01:33:35,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2021-12-16 01:33:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 601. [2021-12-16 01:33:35,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 585 states have (on average 1.3162393162393162) internal successors, (770), 600 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:35,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 770 transitions. [2021-12-16 01:33:35,296 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 770 transitions. Word has length 83 [2021-12-16 01:33:35,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:35,296 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 770 transitions. [2021-12-16 01:33:35,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:35,297 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 770 transitions. [2021-12-16 01:33:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:35,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:35,298 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] [2021-12-16 01:33:35,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-16 01:33:35,298 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)] === [2021-12-16 01:33:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:35,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2136665467, now seen corresponding path program 1 times [2021-12-16 01:33:35,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:35,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641516513] [2021-12-16 01:33:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:35,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:35,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:35,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641516513] [2021-12-16 01:33:35,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641516513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:35,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:35,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:35,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911577632] [2021-12-16 01:33:35,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:35,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:35,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:35,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:35,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:35,427 INFO L87 Difference]: Start difference. First operand 601 states and 770 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:36,334 INFO L93 Difference]: Finished difference Result 1285 states and 1727 transitions. [2021-12-16 01:33:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:36,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2021-12-16 01:33:36,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:36,338 INFO L225 Difference]: With dead ends: 1285 [2021-12-16 01:33:36,338 INFO L226 Difference]: Without dead ends: 1147 [2021-12-16 01:33:36,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:36,340 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 2446 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2446 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:36,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2446 Valid, 2117 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:36,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-12-16 01:33:36,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 601. [2021-12-16 01:33:36,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 585 states have (on average 1.3128205128205128) internal successors, (768), 600 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 768 transitions. [2021-12-16 01:33:36,426 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 768 transitions. Word has length 83 [2021-12-16 01:33:36,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:36,426 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 768 transitions. [2021-12-16 01:33:36,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 768 transitions. [2021-12-16 01:33:36,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:36,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:36,428 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] [2021-12-16 01:33:36,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-16 01:33:36,429 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)] === [2021-12-16 01:33:36,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash -609215547, now seen corresponding path program 1 times [2021-12-16 01:33:36,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:36,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136151933] [2021-12-16 01:33:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:36,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:36,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:36,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136151933] [2021-12-16 01:33:36,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136151933] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:36,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:36,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:36,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836313273] [2021-12-16 01:33:36,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:36,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:36,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:36,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:36,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:36,537 INFO L87 Difference]: Start difference. First operand 601 states and 768 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:37,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:37,332 INFO L93 Difference]: Finished difference Result 1341 states and 1801 transitions. [2021-12-16 01:33:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:37,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2021-12-16 01:33:37,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:37,335 INFO L225 Difference]: With dead ends: 1341 [2021-12-16 01:33:37,335 INFO L226 Difference]: Without dead ends: 1186 [2021-12-16 01:33:37,337 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 [2021-12-16 01:33:37,337 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 2094 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:37,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2094 Valid, 1861 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:33:37,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2021-12-16 01:33:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 601. [2021-12-16 01:33:37,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 585 states have (on average 1.3094017094017094) internal successors, (766), 600 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 766 transitions. [2021-12-16 01:33:37,416 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 766 transitions. Word has length 83 [2021-12-16 01:33:37,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:37,416 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 766 transitions. [2021-12-16 01:33:37,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:37,417 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 766 transitions. [2021-12-16 01:33:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:37,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:37,418 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] [2021-12-16 01:33:37,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-16 01:33:37,418 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:37,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:37,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2078948027, now seen corresponding path program 1 times [2021-12-16 01:33:37,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:37,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812609636] [2021-12-16 01:33:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:37,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:37,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:37,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812609636] [2021-12-16 01:33:37,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812609636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:37,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:37,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:33:37,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848158184] [2021-12-16 01:33:37,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:37,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:37,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:37,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:37,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:37,587 INFO L87 Difference]: Start difference. First operand 601 states and 766 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:39,513 INFO L93 Difference]: Finished difference Result 2466 states and 3424 transitions. [2021-12-16 01:33:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:33:39,514 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-12-16 01:33:39,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:39,517 INFO L225 Difference]: With dead ends: 2466 [2021-12-16 01:33:39,517 INFO L226 Difference]: Without dead ends: 2267 [2021-12-16 01:33:39,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:33:39,518 INFO L933 BasicCegarLoop]: 685 mSDtfsCounter, 3627 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:39,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3627 Valid, 2943 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:33:39,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2021-12-16 01:33:39,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 611. [2021-12-16 01:33:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 595 states have (on average 1.304201680672269) internal successors, (776), 610 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 776 transitions. [2021-12-16 01:33:39,602 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 776 transitions. Word has length 83 [2021-12-16 01:33:39,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:39,602 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 776 transitions. [2021-12-16 01:33:39,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 776 transitions. [2021-12-16 01:33:39,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:39,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:39,604 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] [2021-12-16 01:33:39,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-16 01:33:39,604 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:39,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1135938619, now seen corresponding path program 1 times [2021-12-16 01:33:39,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:39,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968467791] [2021-12-16 01:33:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:39,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:39,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:39,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968467791] [2021-12-16 01:33:39,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968467791] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:39,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:39,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:39,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897304595] [2021-12-16 01:33:39,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:39,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:39,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:39,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:39,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:39,734 INFO L87 Difference]: Start difference. First operand 611 states and 776 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:40,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:40,662 INFO L93 Difference]: Finished difference Result 1291 states and 1728 transitions. [2021-12-16 01:33:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:40,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2021-12-16 01:33:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:40,664 INFO L225 Difference]: With dead ends: 1291 [2021-12-16 01:33:40,664 INFO L226 Difference]: Without dead ends: 1157 [2021-12-16 01:33:40,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:40,665 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 2415 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:40,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2415 Valid, 2176 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:40,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-12-16 01:33:40,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 611. [2021-12-16 01:33:40,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 595 states have (on average 1.3025210084033614) internal successors, (775), 610 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 775 transitions. [2021-12-16 01:33:40,752 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 775 transitions. Word has length 83 [2021-12-16 01:33:40,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:40,752 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 775 transitions. [2021-12-16 01:33:40,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 775 transitions. [2021-12-16 01:33:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:40,753 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:40,753 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] [2021-12-16 01:33:40,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-16 01:33:40,753 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:40,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:40,754 INFO L85 PathProgramCache]: Analyzing trace with hash -120186235, now seen corresponding path program 1 times [2021-12-16 01:33:40,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:40,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920716556] [2021-12-16 01:33:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:40,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:40,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:40,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920716556] [2021-12-16 01:33:40,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920716556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:40,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:40,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:33:40,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373330834] [2021-12-16 01:33:40,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:40,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:40,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:40,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:40,911 INFO L87 Difference]: Start difference. First operand 611 states and 775 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:42,827 INFO L93 Difference]: Finished difference Result 2186 states and 3016 transitions. [2021-12-16 01:33:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:33:42,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-12-16 01:33:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:42,830 INFO L225 Difference]: With dead ends: 2186 [2021-12-16 01:33:42,830 INFO L226 Difference]: Without dead ends: 2039 [2021-12-16 01:33:42,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:33:42,832 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 4235 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4235 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:42,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4235 Valid, 2354 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:33:42,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2021-12-16 01:33:42,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 616. [2021-12-16 01:33:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 600 states have (on average 1.3) internal successors, (780), 615 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:42,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 780 transitions. [2021-12-16 01:33:42,924 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 780 transitions. Word has length 83 [2021-12-16 01:33:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:42,924 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 780 transitions. [2021-12-16 01:33:42,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:42,924 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 780 transitions. [2021-12-16 01:33:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:42,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:42,926 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] [2021-12-16 01:33:42,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-16 01:33:42,926 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:42,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1344158299, now seen corresponding path program 1 times [2021-12-16 01:33:42,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:42,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734671368] [2021-12-16 01:33:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:42,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:43,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:43,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734671368] [2021-12-16 01:33:43,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734671368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:43,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:43,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:33:43,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682442762] [2021-12-16 01:33:43,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:43,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:43,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:43,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:43,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:43,105 INFO L87 Difference]: Start difference. First operand 616 states and 780 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:44,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:44,941 INFO L93 Difference]: Finished difference Result 1966 states and 2698 transitions. [2021-12-16 01:33:44,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:33:44,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-12-16 01:33:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:44,944 INFO L225 Difference]: With dead ends: 1966 [2021-12-16 01:33:44,944 INFO L226 Difference]: Without dead ends: 1832 [2021-12-16 01:33:44,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:33:44,945 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 4887 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 1802 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4887 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 1802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:44,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4887 Valid, 2515 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 1802 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:33:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2021-12-16 01:33:45,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 621. [2021-12-16 01:33:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 605 states have (on average 1.2975206611570247) internal successors, (785), 620 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 785 transitions. [2021-12-16 01:33:45,036 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 785 transitions. Word has length 83 [2021-12-16 01:33:45,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:45,036 INFO L470 AbstractCegarLoop]: Abstraction has 621 states and 785 transitions. [2021-12-16 01:33:45,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:45,036 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 785 transitions. [2021-12-16 01:33:45,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:45,037 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:45,037 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] [2021-12-16 01:33:45,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-16 01:33:45,037 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:45,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:45,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1785662459, now seen corresponding path program 1 times [2021-12-16 01:33:45,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:45,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123574197] [2021-12-16 01:33:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:45,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:45,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:45,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123574197] [2021-12-16 01:33:45,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123574197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:45,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:45,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:33:45,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816664438] [2021-12-16 01:33:45,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:45,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:45,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:45,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:45,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:45,206 INFO L87 Difference]: Start difference. First operand 621 states and 785 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:46,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:46,964 INFO L93 Difference]: Finished difference Result 1838 states and 2505 transitions. [2021-12-16 01:33:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:33:46,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-12-16 01:33:46,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:46,967 INFO L225 Difference]: With dead ends: 1838 [2021-12-16 01:33:46,967 INFO L226 Difference]: Without dead ends: 1832 [2021-12-16 01:33:46,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:33:46,968 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 4969 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:46,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4969 Valid, 2053 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 01:33:46,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2021-12-16 01:33:47,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 626. [2021-12-16 01:33:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 610 states have (on average 1.2950819672131149) internal successors, (790), 625 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 790 transitions. [2021-12-16 01:33:47,051 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 790 transitions. Word has length 83 [2021-12-16 01:33:47,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:47,051 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 790 transitions. [2021-12-16 01:33:47,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-12-16 01:33:47,052 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 790 transitions. [2021-12-16 01:33:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:33:47,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:47,053 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] [2021-12-16 01:33:47,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-16 01:33:47,053 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:47,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:47,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1863854243, now seen corresponding path program 1 times [2021-12-16 01:33:47,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:47,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95066991] [2021-12-16 01:33:47,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:47,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:47,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:47,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95066991] [2021-12-16 01:33:47,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95066991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:47,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:47,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:47,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059054612] [2021-12-16 01:33:47,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:47,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:47,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:47,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:47,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:47,159 INFO L87 Difference]: Start difference. First operand 626 states and 790 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:48,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:48,024 INFO L93 Difference]: Finished difference Result 1293 states and 1727 transitions. [2021-12-16 01:33:48,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:48,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2021-12-16 01:33:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:48,026 INFO L225 Difference]: With dead ends: 1293 [2021-12-16 01:33:48,026 INFO L226 Difference]: Without dead ends: 1162 [2021-12-16 01:33:48,027 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 [2021-12-16 01:33:48,027 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 1387 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:48,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1387 Valid, 1847 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:33:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2021-12-16 01:33:48,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 621. [2021-12-16 01:33:48,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 605 states have (on average 1.2958677685950413) internal successors, (784), 620 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 784 transitions. [2021-12-16 01:33:48,114 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 784 transitions. Word has length 83 [2021-12-16 01:33:48,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:48,115 INFO L470 AbstractCegarLoop]: Abstraction has 621 states and 784 transitions. [2021-12-16 01:33:48,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2021-12-16 01:33:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 784 transitions. [2021-12-16 01:33:48,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:33:48,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:48,116 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] [2021-12-16 01:33:48,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-16 01:33:48,117 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:48,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:48,117 INFO L85 PathProgramCache]: Analyzing trace with hash 901356690, now seen corresponding path program 1 times [2021-12-16 01:33:48,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:48,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970389204] [2021-12-16 01:33:48,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:48,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:48,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:48,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970389204] [2021-12-16 01:33:48,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970389204] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:48,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:48,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 01:33:48,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275676659] [2021-12-16 01:33:48,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:48,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:48,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:48,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:48,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:48,460 INFO L87 Difference]: Start difference. First operand 621 states and 784 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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) [2021-12-16 01:33:49,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:49,319 INFO L93 Difference]: Finished difference Result 1206 states and 1621 transitions. [2021-12-16 01:33:49,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 01:33:49,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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 [2021-12-16 01:33:49,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:49,322 INFO L225 Difference]: With dead ends: 1206 [2021-12-16 01:33:49,322 INFO L226 Difference]: Without dead ends: 962 [2021-12-16 01:33:49,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:49,323 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 2529 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:49,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2529 Valid, 3557 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:33:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2021-12-16 01:33:49,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 505. [2021-12-16 01:33:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 493 states have (on average 1.3002028397565923) internal successors, (641), 504 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 641 transitions. [2021-12-16 01:33:49,416 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 641 transitions. Word has length 84 [2021-12-16 01:33:49,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:49,416 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 641 transitions. [2021-12-16 01:33:49,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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) [2021-12-16 01:33:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 641 transitions. [2021-12-16 01:33:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:33:49,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:49,417 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] [2021-12-16 01:33:49,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-16 01:33:49,417 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:49,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:49,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1236288997, now seen corresponding path program 1 times [2021-12-16 01:33:49,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:49,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818189737] [2021-12-16 01:33:49,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:49,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:49,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:49,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818189737] [2021-12-16 01:33:49,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818189737] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:49,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:49,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:49,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203370737] [2021-12-16 01:33:49,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:49,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:49,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:49,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:49,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:49,512 INFO L87 Difference]: Start difference. First operand 505 states and 641 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) [2021-12-16 01:33:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:50,516 INFO L93 Difference]: Finished difference Result 1315 states and 1768 transitions. [2021-12-16 01:33:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:50,516 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 [2021-12-16 01:33:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:50,518 INFO L225 Difference]: With dead ends: 1315 [2021-12-16 01:33:50,518 INFO L226 Difference]: Without dead ends: 1116 [2021-12-16 01:33:50,519 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 [2021-12-16 01:33:50,519 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 1693 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:50,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1693 Valid, 1919 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:50,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-12-16 01:33:50,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 495. [2021-12-16 01:33:50,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 483 states have (on average 1.3022774327122153) internal successors, (629), 494 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:50,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 629 transitions. [2021-12-16 01:33:50,602 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 629 transitions. Word has length 84 [2021-12-16 01:33:50,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:50,603 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 629 transitions. [2021-12-16 01:33:50,603 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) [2021-12-16 01:33:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 629 transitions. [2021-12-16 01:33:50,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:33:50,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:50,603 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, 1, 1, 1] [2021-12-16 01:33:50,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-16 01:33:50,604 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:50,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2078732722, now seen corresponding path program 1 times [2021-12-16 01:33:50,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:50,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223261563] [2021-12-16 01:33:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:50,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:50,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:50,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:50,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223261563] [2021-12-16 01:33:50,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223261563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:50,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:50,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 01:33:50,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029745915] [2021-12-16 01:33:50,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:50,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 01:33:50,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:50,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 01:33:50,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-16 01:33:50,909 INFO L87 Difference]: Start difference. First operand 495 states and 629 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) [2021-12-16 01:33:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:52,489 INFO L93 Difference]: Finished difference Result 2033 states and 2799 transitions. [2021-12-16 01:33:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-16 01:33:52,489 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 [2021-12-16 01:33:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:52,493 INFO L225 Difference]: With dead ends: 2033 [2021-12-16 01:33:52,493 INFO L226 Difference]: Without dead ends: 1903 [2021-12-16 01:33:52,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-12-16 01:33:52,495 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 3496 mSDsluCounter, 3968 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3496 SdHoareTripleChecker+Valid, 4555 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:52,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3496 Valid, 4555 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2021-12-16 01:33:52,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 493. [2021-12-16 01:33:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 481 states have (on average 1.2993762993762994) internal successors, (625), 492 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 625 transitions. [2021-12-16 01:33:52,629 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 625 transitions. Word has length 84 [2021-12-16 01:33:52,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:52,630 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 625 transitions. [2021-12-16 01:33:52,630 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) [2021-12-16 01:33:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 625 transitions. [2021-12-16 01:33:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:33:52,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:52,631 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] [2021-12-16 01:33:52,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-16 01:33:52,631 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:52,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:52,632 INFO L85 PathProgramCache]: Analyzing trace with hash -918543470, now seen corresponding path program 1 times [2021-12-16 01:33:52,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:52,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354571974] [2021-12-16 01:33:52,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:52,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:52,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:52,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:52,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354571974] [2021-12-16 01:33:52,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354571974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:52,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:52,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 01:33:52,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670393183] [2021-12-16 01:33:52,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:52,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 01:33:52,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:52,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 01:33:52,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-16 01:33:52,995 INFO L87 Difference]: Start difference. First operand 493 states and 625 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) [2021-12-16 01:33:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:54,863 INFO L93 Difference]: Finished difference Result 2031 states and 2795 transitions. [2021-12-16 01:33:54,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-16 01:33:54,864 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 [2021-12-16 01:33:54,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:54,868 INFO L225 Difference]: With dead ends: 2031 [2021-12-16 01:33:54,868 INFO L226 Difference]: Without dead ends: 1902 [2021-12-16 01:33:54,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-12-16 01:33:54,870 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 2461 mSDsluCounter, 4861 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 5507 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:54,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2461 Valid, 5507 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:54,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2021-12-16 01:33:55,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 492. [2021-12-16 01:33:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 480 states have (on average 1.2979166666666666) internal successors, (623), 491 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 623 transitions. [2021-12-16 01:33:55,018 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 623 transitions. Word has length 84 [2021-12-16 01:33:55,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:55,018 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 623 transitions. [2021-12-16 01:33:55,018 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) [2021-12-16 01:33:55,019 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 623 transitions. [2021-12-16 01:33:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:33:55,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:55,019 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] [2021-12-16 01:33:55,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-16 01:33:55,020 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:55,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:55,020 INFO L85 PathProgramCache]: Analyzing trace with hash 880993138, now seen corresponding path program 1 times [2021-12-16 01:33:55,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:55,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100197551] [2021-12-16 01:33:55,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:55,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:55,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:55,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:55,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100197551] [2021-12-16 01:33:55,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100197551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:55,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:55,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 01:33:55,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512615047] [2021-12-16 01:33:55,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:55,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:55,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:55,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:55,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:55,318 INFO L87 Difference]: Start difference. First operand 492 states and 623 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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) [2021-12-16 01:33:56,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:56,431 INFO L93 Difference]: Finished difference Result 1520 states and 2075 transitions. [2021-12-16 01:33:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 01:33:56,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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 [2021-12-16 01:33:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:56,435 INFO L225 Difference]: With dead ends: 1520 [2021-12-16 01:33:56,435 INFO L226 Difference]: Without dead ends: 1360 [2021-12-16 01:33:56,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-16 01:33:56,436 INFO L933 BasicCegarLoop]: 710 mSDtfsCounter, 2285 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:56,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2285 Valid, 3863 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:33:56,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2021-12-16 01:33:56,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 460. [2021-12-16 01:33:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 449 states have (on average 1.2984409799554566) internal successors, (583), 459 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 583 transitions. [2021-12-16 01:33:56,587 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 583 transitions. Word has length 84 [2021-12-16 01:33:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:56,588 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 583 transitions. [2021-12-16 01:33:56,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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) [2021-12-16 01:33:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 583 transitions. [2021-12-16 01:33:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:33:56,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:56,589 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] [2021-12-16 01:33:56,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-16 01:33:56,589 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:56,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:56,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1922627196, now seen corresponding path program 1 times [2021-12-16 01:33:56,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:56,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022546890] [2021-12-16 01:33:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:56,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:56,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:56,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022546890] [2021-12-16 01:33:56,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022546890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:56,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:56,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:56,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509894400] [2021-12-16 01:33:56,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:56,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:56,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:56,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:56,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:56,684 INFO L87 Difference]: Start difference. First operand 460 states and 583 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) [2021-12-16 01:33:57,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:57,665 INFO L93 Difference]: Finished difference Result 1140 states and 1541 transitions. [2021-12-16 01:33:57,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:57,666 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 [2021-12-16 01:33:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:57,667 INFO L225 Difference]: With dead ends: 1140 [2021-12-16 01:33:57,667 INFO L226 Difference]: Without dead ends: 993 [2021-12-16 01:33:57,668 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 [2021-12-16 01:33:57,671 INFO L933 BasicCegarLoop]: 487 mSDtfsCounter, 955 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:57,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [955 Valid, 1904 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:33:57,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-12-16 01:33:57,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 455. [2021-12-16 01:33:57,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 444 states have (on average 1.2995495495495495) internal successors, (577), 454 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 577 transitions. [2021-12-16 01:33:57,784 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 577 transitions. Word has length 84 [2021-12-16 01:33:57,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:57,784 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 577 transitions. [2021-12-16 01:33:57,784 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) [2021-12-16 01:33:57,784 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 577 transitions. [2021-12-16 01:33:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:33:57,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:57,785 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] [2021-12-16 01:33:57,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-16 01:33:57,785 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:57,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:57,785 INFO L85 PathProgramCache]: Analyzing trace with hash 80443570, now seen corresponding path program 1 times [2021-12-16 01:33:57,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:57,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913770294] [2021-12-16 01:33:57,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:57,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat