./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 438134aaa8cbf7b10a3435da62ff5e9b4dd424421597a948889467a2e9f2184b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 16:58:53,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 16:58:53,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 16:58:53,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 16:58:53,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 16:58:53,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 16:58:53,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 16:58:53,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 16:58:53,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 16:58:53,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 16:58:53,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 16:58:53,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 16:58:53,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 16:58:53,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 16:58:53,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 16:58:53,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 16:58:53,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 16:58:53,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 16:58:53,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 16:58:53,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 16:58:53,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 16:58:53,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 16:58:53,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 16:58:53,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 16:58:53,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 16:58:53,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 16:58:53,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 16:58:53,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 16:58:53,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 16:58:53,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 16:58:53,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 16:58:53,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 16:58:53,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 16:58:53,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 16:58:53,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 16:58:53,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 16:58:53,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 16:58:53,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 16:58:53,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 16:58:53,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 16:58:53,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 16:58:53,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 16:58:53,903 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 16:58:53,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 16:58:53,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 16:58:53,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 16:58:53,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 16:58:53,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 16:58:53,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 16:58:53,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 16:58:53,907 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 16:58:53,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 16:58:53,908 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 16:58:53,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 16:58:53,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 16:58:53,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 16:58:53,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 16:58:53,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 16:58:53,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 16:58:53,909 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 16:58:53,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 16:58:53,910 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 16:58:53,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 16:58:53,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 16:58:53,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 16:58:53,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 16:58:53,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:58:53,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 16:58:53,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 16:58:53,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 16:58:53,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 16:58:53,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 16:58:53,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 16:58:53,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 16:58:53,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 16:58:53,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 16:58:53,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 438134aaa8cbf7b10a3435da62ff5e9b4dd424421597a948889467a2e9f2184b [2021-12-17 16:58:54,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 16:58:54,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 16:58:54,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 16:58:54,163 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 16:58:54,164 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 16:58:54,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-12-17 16:58:54,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7007da4a0/025cf714e8f04f93b3d6fe11a976ea1f/FLAGa70b01ecf [2021-12-17 16:58:55,002 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 16:58:55,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-12-17 16:58:55,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7007da4a0/025cf714e8f04f93b3d6fe11a976ea1f/FLAGa70b01ecf [2021-12-17 16:58:55,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7007da4a0/025cf714e8f04f93b3d6fe11a976ea1f [2021-12-17 16:58:55,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 16:58:55,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 16:58:55,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 16:58:55,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 16:58:55,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 16:58:55,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:58:55" (1/1) ... [2021-12-17 16:58:55,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e69c212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:55, skipping insertion in model container [2021-12-17 16:58:55,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:58:55" (1/1) ... [2021-12-17 16:58:55,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 16:58:55,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 16:58:55,909 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17602,17615] [2021-12-17 16:58:55,958 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22899,22912] [2021-12-17 16:58:55,980 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24256,24269] [2021-12-17 16:58:55,994 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25064,25077] [2021-12-17 16:58:56,006 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26792,26805] [2021-12-17 16:58:56,017 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27600,27613] [2021-12-17 16:58:56,025 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28779,28792] [2021-12-17 16:58:56,044 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31519,31532] [2021-12-17 16:58:56,048 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32330,32343] [2021-12-17 16:58:56,053 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33512,33525] [2021-12-17 16:58:56,062 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35703,35716] [2021-12-17 16:58:56,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39963,39976] [2021-12-17 16:58:56,083 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40774,40787] [2021-12-17 16:58:56,088 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41956,41969] [2021-12-17 16:58:56,096 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44147,44160] [2021-12-17 16:58:56,109 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47858,47871] [2021-12-17 16:58:56,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54605,54618] [2021-12-17 16:58:56,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55416,55429] [2021-12-17 16:58:56,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56559,56572] [2021-12-17 16:58:56,149 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58711,58724] [2021-12-17 16:58:56,164 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62628,62641] [2021-12-17 16:58:56,189 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69577,69590] [2021-12-17 16:58:56,252 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82313,82326] [2021-12-17 16:58:56,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83124,83137] [2021-12-17 16:58:56,271 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84306,84319] [2021-12-17 16:58:56,283 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86497,86510] [2021-12-17 16:58:56,298 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90208,90221] [2021-12-17 16:58:56,325 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96406,96419] [2021-12-17 16:58:56,360 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[106997,107010] [2021-12-17 16:58:56,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:58:56,958 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 16:58:57,032 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17602,17615] [2021-12-17 16:58:57,044 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22899,22912] [2021-12-17 16:58:57,049 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24256,24269] [2021-12-17 16:58:57,053 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25064,25077] [2021-12-17 16:58:57,058 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26792,26805] [2021-12-17 16:58:57,062 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27600,27613] [2021-12-17 16:58:57,066 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28779,28792] [2021-12-17 16:58:57,074 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31519,31532] [2021-12-17 16:58:57,078 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32330,32343] [2021-12-17 16:58:57,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33512,33525] [2021-12-17 16:58:57,088 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35703,35716] [2021-12-17 16:58:57,103 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39963,39976] [2021-12-17 16:58:57,107 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40774,40787] [2021-12-17 16:58:57,111 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41956,41969] [2021-12-17 16:58:57,117 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44147,44160] [2021-12-17 16:58:57,128 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47858,47871] [2021-12-17 16:58:57,145 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54605,54618] [2021-12-17 16:58:57,149 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55416,55429] [2021-12-17 16:58:57,153 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56559,56572] [2021-12-17 16:58:57,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58711,58724] [2021-12-17 16:58:57,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62628,62641] [2021-12-17 16:58:57,189 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69577,69590] [2021-12-17 16:58:57,220 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82313,82326] [2021-12-17 16:58:57,224 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83124,83137] [2021-12-17 16:58:57,228 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84306,84319] [2021-12-17 16:58:57,234 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86497,86510] [2021-12-17 16:58:57,244 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90208,90221] [2021-12-17 16:58:57,260 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96406,96419] [2021-12-17 16:58:57,283 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.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[106997,107010] [2021-12-17 16:58:57,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:58:57,737 INFO L208 MainTranslator]: Completed translation [2021-12-17 16:58:57,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57 WrapperNode [2021-12-17 16:58:57,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 16:58:57,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 16:58:57,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 16:58:57,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 16:58:57,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:57,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,006 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12601 [2021-12-17 16:58:58,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 16:58:58,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 16:58:58,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 16:58:58,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 16:58:58,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 16:58:58,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 16:58:58,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 16:58:58,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 16:58:58,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (1/1) ... [2021-12-17 16:58:58,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:58:58,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 16:58:58,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 16:58:58,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 16:58:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 16:58:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 16:58:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 16:58:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 16:58:58,814 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 16:58:58,815 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 16:59:02,947 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 16:59:02,969 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 16:59:02,970 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 16:59:02,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:59:02 BoogieIcfgContainer [2021-12-17 16:59:02,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 16:59:02,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 16:59:02,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 16:59:02,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 16:59:02,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:58:55" (1/3) ... [2021-12-17 16:59:02,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bfab6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:59:02, skipping insertion in model container [2021-12-17 16:59:02,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:58:57" (2/3) ... [2021-12-17 16:59:02,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bfab6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:59:02, skipping insertion in model container [2021-12-17 16:59:02,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:59:02" (3/3) ... [2021-12-17 16:59:02,981 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-12-17 16:59:02,986 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 16:59:02,986 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-17 16:59:03,034 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 16:59:03,039 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 16:59:03,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-17 16:59:03,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 2052 states have (on average 1.8606237816764133) internal successors, (3818), 2081 states have internal predecessors, (3818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:03,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-17 16:59:03,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:03,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:03,114 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:03,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:03,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1477171740, now seen corresponding path program 1 times [2021-12-17 16:59:03,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:03,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828004300] [2021-12-17 16:59:03,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:03,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:03,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:03,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828004300] [2021-12-17 16:59:03,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828004300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:03,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:03,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:59:03,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639508325] [2021-12-17 16:59:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:03,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:59:03,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:03,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:59:03,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:59:03,665 INFO L87 Difference]: Start difference. First operand has 2082 states, 2052 states have (on average 1.8606237816764133) internal successors, (3818), 2081 states have internal predecessors, (3818), 0 states have call successors, (0), 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 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:05,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:05,020 INFO L93 Difference]: Finished difference Result 3095 states and 5492 transitions. [2021-12-17 16:59:05,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:59:05,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-17 16:59:05,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:05,042 INFO L225 Difference]: With dead ends: 3095 [2021-12-17 16:59:05,042 INFO L226 Difference]: Without dead ends: 1615 [2021-12-17 16:59:05,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:59:05,052 INFO L933 BasicCegarLoop]: 1846 mSDtfsCounter, 8340 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8340 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:05,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8340 Valid, 1924 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 16:59:05,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2021-12-17 16:59:05,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1615. [2021-12-17 16:59:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1586 states have (on average 1.3171500630517023) internal successors, (2089), 1614 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2089 transitions. [2021-12-17 16:59:05,143 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2089 transitions. Word has length 101 [2021-12-17 16:59:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:05,144 INFO L470 AbstractCegarLoop]: Abstraction has 1615 states and 2089 transitions. [2021-12-17 16:59:05,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2089 transitions. [2021-12-17 16:59:05,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-17 16:59:05,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:05,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:05,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 16:59:05,149 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:05,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:05,150 INFO L85 PathProgramCache]: Analyzing trace with hash -285120067, now seen corresponding path program 1 times [2021-12-17 16:59:05,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:05,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465882030] [2021-12-17 16:59:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:05,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:05,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:05,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465882030] [2021-12-17 16:59:05,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465882030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:05,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:05,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:59:05,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639084241] [2021-12-17 16:59:05,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:05,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:59:05,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:05,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:59:05,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:59:05,320 INFO L87 Difference]: Start difference. First operand 1615 states and 2089 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:07,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:07,172 INFO L93 Difference]: Finished difference Result 2619 states and 3504 transitions. [2021-12-17 16:59:07,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:59:07,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-17 16:59:07,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:07,182 INFO L225 Difference]: With dead ends: 2619 [2021-12-17 16:59:07,182 INFO L226 Difference]: Without dead ends: 1359 [2021-12-17 16:59:07,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:59:07,196 INFO L933 BasicCegarLoop]: 1005 mSDtfsCounter, 5280 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5280 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:07,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5280 Valid, 1033 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:59:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2021-12-17 16:59:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1359. [2021-12-17 16:59:07,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1330 states have (on average 1.3533834586466165) internal successors, (1800), 1358 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:07,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1800 transitions. [2021-12-17 16:59:07,291 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1800 transitions. Word has length 102 [2021-12-17 16:59:07,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:07,293 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 1800 transitions. [2021-12-17 16:59:07,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:07,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1800 transitions. [2021-12-17 16:59:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-17 16:59:07,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:07,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:07,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 16:59:07,300 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:07,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:07,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1968712259, now seen corresponding path program 1 times [2021-12-17 16:59:07,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:07,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820319518] [2021-12-17 16:59:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:07,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:07,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:07,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:07,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820319518] [2021-12-17 16:59:07,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820319518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:07,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:07,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:59:07,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688516551] [2021-12-17 16:59:07,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:07,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:59:07,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:07,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:59:07,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:59:07,465 INFO L87 Difference]: Start difference. First operand 1359 states and 1800 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:08,152 INFO L93 Difference]: Finished difference Result 2363 states and 3214 transitions. [2021-12-17 16:59:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:59:08,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-17 16:59:08,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:08,157 INFO L225 Difference]: With dead ends: 2363 [2021-12-17 16:59:08,158 INFO L226 Difference]: Without dead ends: 1210 [2021-12-17 16:59:08,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:59:08,161 INFO L933 BasicCegarLoop]: 923 mSDtfsCounter, 4833 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:08,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4833 Valid, 927 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:59:08,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2021-12-17 16:59:08,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2021-12-17 16:59:08,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1181 states have (on average 1.3835732430143945) internal successors, (1634), 1209 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:08,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1634 transitions. [2021-12-17 16:59:08,202 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1634 transitions. Word has length 103 [2021-12-17 16:59:08,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:08,203 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 1634 transitions. [2021-12-17 16:59:08,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:08,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1634 transitions. [2021-12-17 16:59:08,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-17 16:59:08,206 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:08,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:08,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 16:59:08,207 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:08,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash -209052257, now seen corresponding path program 1 times [2021-12-17 16:59:08,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:08,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164709622] [2021-12-17 16:59:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:08,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:08,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:08,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:08,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164709622] [2021-12-17 16:59:08,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164709622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:08,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:08,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:59:08,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814425244] [2021-12-17 16:59:08,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:08,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:59:08,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:08,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:59:08,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:59:08,312 INFO L87 Difference]: Start difference. First operand 1210 states and 1634 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:09,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:09,149 INFO L93 Difference]: Finished difference Result 2214 states and 3047 transitions. [2021-12-17 16:59:09,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:59:09,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-17 16:59:09,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:09,155 INFO L225 Difference]: With dead ends: 2214 [2021-12-17 16:59:09,158 INFO L226 Difference]: Without dead ends: 1158 [2021-12-17 16:59:09,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:59:09,165 INFO L933 BasicCegarLoop]: 785 mSDtfsCounter, 4504 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4504 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:09,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4504 Valid, 829 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 16:59:09,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-12-17 16:59:09,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2021-12-17 16:59:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1129 states have (on average 1.3932683790965457) internal successors, (1573), 1157 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1573 transitions. [2021-12-17 16:59:09,211 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1573 transitions. Word has length 104 [2021-12-17 16:59:09,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:09,217 INFO L470 AbstractCegarLoop]: Abstraction has 1158 states and 1573 transitions. [2021-12-17 16:59:09,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1573 transitions. [2021-12-17 16:59:09,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-17 16:59:09,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:09,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:09,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 16:59:09,223 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:09,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:09,224 INFO L85 PathProgramCache]: Analyzing trace with hash 761156145, now seen corresponding path program 1 times [2021-12-17 16:59:09,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:09,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252996495] [2021-12-17 16:59:09,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:09,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:09,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:09,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252996495] [2021-12-17 16:59:09,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252996495] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:09,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:09,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:59:09,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033992090] [2021-12-17 16:59:09,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:09,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:59:09,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:09,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:59:09,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:59:09,343 INFO L87 Difference]: Start difference. First operand 1158 states and 1573 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:10,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:10,055 INFO L93 Difference]: Finished difference Result 2162 states and 2985 transitions. [2021-12-17 16:59:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:59:10,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-17 16:59:10,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:10,060 INFO L225 Difference]: With dead ends: 2162 [2021-12-17 16:59:10,060 INFO L226 Difference]: Without dead ends: 1111 [2021-12-17 16:59:10,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:59:10,063 INFO L933 BasicCegarLoop]: 847 mSDtfsCounter, 4480 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4480 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:10,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4480 Valid, 859 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:59:10,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2021-12-17 16:59:10,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1111. [2021-12-17 16:59:10,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1082 states have (on average 1.4057301293900184) internal successors, (1521), 1110 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:10,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1521 transitions. [2021-12-17 16:59:10,106 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1521 transitions. Word has length 105 [2021-12-17 16:59:10,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:10,107 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 1521 transitions. [2021-12-17 16:59:10,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:10,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1521 transitions. [2021-12-17 16:59:10,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-17 16:59:10,109 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:10,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:10,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 16:59:10,110 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:10,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:10,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2097891261, now seen corresponding path program 1 times [2021-12-17 16:59:10,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:10,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692477090] [2021-12-17 16:59:10,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:10,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:10,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:10,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692477090] [2021-12-17 16:59:10,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692477090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:10,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:10,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:59:10,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879440199] [2021-12-17 16:59:10,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:10,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:59:10,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:10,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:59:10,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:59:10,224 INFO L87 Difference]: Start difference. First operand 1111 states and 1521 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:10,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:10,869 INFO L93 Difference]: Finished difference Result 2115 states and 2932 transitions. [2021-12-17 16:59:10,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:59:10,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-17 16:59:10,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:10,874 INFO L225 Difference]: With dead ends: 2115 [2021-12-17 16:59:10,874 INFO L226 Difference]: Without dead ends: 1089 [2021-12-17 16:59:10,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:59:10,876 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 4388 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4388 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:10,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4388 Valid, 847 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 16:59:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2021-12-17 16:59:10,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1089. [2021-12-17 16:59:10,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1060 states have (on average 1.411320754716981) internal successors, (1496), 1088 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1496 transitions. [2021-12-17 16:59:10,914 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1496 transitions. Word has length 106 [2021-12-17 16:59:10,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:10,914 INFO L470 AbstractCegarLoop]: Abstraction has 1089 states and 1496 transitions. [2021-12-17 16:59:10,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:10,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1496 transitions. [2021-12-17 16:59:10,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 16:59:10,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:10,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:10,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 16:59:10,917 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:10,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:10,918 INFO L85 PathProgramCache]: Analyzing trace with hash 76195807, now seen corresponding path program 1 times [2021-12-17 16:59:10,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:10,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624730170] [2021-12-17 16:59:10,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:10,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:11,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:11,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624730170] [2021-12-17 16:59:11,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624730170] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:11,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:11,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 16:59:11,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876790928] [2021-12-17 16:59:11,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:11,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 16:59:11,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:11,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 16:59:11,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 16:59:11,014 INFO L87 Difference]: Start difference. First operand 1089 states and 1496 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:11,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:11,846 INFO L93 Difference]: Finished difference Result 2093 states and 2906 transitions. [2021-12-17 16:59:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 16:59:11,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 16:59:11,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:11,851 INFO L225 Difference]: With dead ends: 2093 [2021-12-17 16:59:11,851 INFO L226 Difference]: Without dead ends: 1084 [2021-12-17 16:59:11,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 16:59:11,854 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 4146 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:11,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4146 Valid, 666 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 16:59:11,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2021-12-17 16:59:11,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1084. [2021-12-17 16:59:11,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4113744075829384) internal successors, (1489), 1083 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1489 transitions. [2021-12-17 16:59:11,928 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1489 transitions. Word has length 107 [2021-12-17 16:59:11,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:11,928 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1489 transitions. [2021-12-17 16:59:11,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:11,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1489 transitions. [2021-12-17 16:59:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 16:59:11,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:11,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:11,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 16:59:11,932 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:11,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:11,933 INFO L85 PathProgramCache]: Analyzing trace with hash 65664385, now seen corresponding path program 1 times [2021-12-17 16:59:11,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:11,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032456147] [2021-12-17 16:59:11,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:11,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:12,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:12,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032456147] [2021-12-17 16:59:12,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032456147] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:12,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:12,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 16:59:12,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506584648] [2021-12-17 16:59:12,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:12,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 16:59:12,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:12,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 16:59:12,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-17 16:59:12,122 INFO L87 Difference]: Start difference. First operand 1084 states and 1489 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:13,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:13,607 INFO L93 Difference]: Finished difference Result 1996 states and 2648 transitions. [2021-12-17 16:59:13,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 16:59:13,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 16:59:13,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:13,613 INFO L225 Difference]: With dead ends: 1996 [2021-12-17 16:59:13,613 INFO L226 Difference]: Without dead ends: 1411 [2021-12-17 16:59:13,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-12-17 16:59:13,615 INFO L933 BasicCegarLoop]: 676 mSDtfsCounter, 6183 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6183 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:13,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6183 Valid, 1935 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:59:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2021-12-17 16:59:13,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1084. [2021-12-17 16:59:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.41042654028436) internal successors, (1488), 1083 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1488 transitions. [2021-12-17 16:59:13,667 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1488 transitions. Word has length 108 [2021-12-17 16:59:13,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:13,667 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1488 transitions. [2021-12-17 16:59:13,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:13,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1488 transitions. [2021-12-17 16:59:13,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 16:59:13,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:13,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:13,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 16:59:13,670 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:13,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:13,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1618229889, now seen corresponding path program 1 times [2021-12-17 16:59:13,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:13,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091334961] [2021-12-17 16:59:13,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:13,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:13,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:13,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091334961] [2021-12-17 16:59:13,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091334961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:13,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:13,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:13,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832366978] [2021-12-17 16:59:13,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:13,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:13,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:13,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:13,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:13,821 INFO L87 Difference]: Start difference. First operand 1084 states and 1488 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:15,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:15,547 INFO L93 Difference]: Finished difference Result 1929 states and 2658 transitions. [2021-12-17 16:59:15,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:15,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 16:59:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:15,554 INFO L225 Difference]: With dead ends: 1929 [2021-12-17 16:59:15,555 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 16:59:15,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:15,556 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 4203 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 3133 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4203 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 3200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:15,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4203 Valid, 3817 Invalid, 3200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3133 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 16:59:15,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1084. [2021-12-17 16:59:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.409478672985782) internal successors, (1487), 1083 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1487 transitions. [2021-12-17 16:59:15,611 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1487 transitions. Word has length 108 [2021-12-17 16:59:15,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:15,611 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1487 transitions. [2021-12-17 16:59:15,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:15,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1487 transitions. [2021-12-17 16:59:15,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 16:59:15,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:15,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:15,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 16:59:15,614 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:15,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:15,615 INFO L85 PathProgramCache]: Analyzing trace with hash 180174419, now seen corresponding path program 1 times [2021-12-17 16:59:15,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:15,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477918273] [2021-12-17 16:59:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:15,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:15,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:15,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477918273] [2021-12-17 16:59:15,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477918273] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:15,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:15,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:59:15,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769388081] [2021-12-17 16:59:15,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:15,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:59:15,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:15,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:59:15,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:59:15,821 INFO L87 Difference]: Start difference. First operand 1084 states and 1487 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:17,843 INFO L93 Difference]: Finished difference Result 2014 states and 2771 transitions. [2021-12-17 16:59:17,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 16:59:17,843 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 16:59:17,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:17,850 INFO L225 Difference]: With dead ends: 2014 [2021-12-17 16:59:17,851 INFO L226 Difference]: Without dead ends: 1903 [2021-12-17 16:59:17,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-17 16:59:17,853 INFO L933 BasicCegarLoop]: 902 mSDtfsCounter, 4450 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 4433 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4450 SdHoareTripleChecker+Valid, 5301 SdHoareTripleChecker+Invalid, 4508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:17,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4450 Valid, 5301 Invalid, 4508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4433 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:59:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2021-12-17 16:59:17,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1097. [2021-12-17 16:59:17,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1068 states have (on average 1.4101123595505618) internal successors, (1506), 1096 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:17,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1506 transitions. [2021-12-17 16:59:17,937 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1506 transitions. Word has length 108 [2021-12-17 16:59:17,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:17,938 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 1506 transitions. [2021-12-17 16:59:17,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:17,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1506 transitions. [2021-12-17 16:59:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 16:59:17,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:17,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:17,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 16:59:17,942 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:17,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1822156941, now seen corresponding path program 1 times [2021-12-17 16:59:17,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:17,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631529466] [2021-12-17 16:59:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:17,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:18,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:18,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631529466] [2021-12-17 16:59:18,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631529466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:18,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:18,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:18,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823233851] [2021-12-17 16:59:18,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:18,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:18,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:18,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:18,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:18,092 INFO L87 Difference]: Start difference. First operand 1097 states and 1506 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:19,818 INFO L93 Difference]: Finished difference Result 2154 states and 2986 transitions. [2021-12-17 16:59:19,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:19,818 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 16:59:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:19,825 INFO L225 Difference]: With dead ends: 2154 [2021-12-17 16:59:19,825 INFO L226 Difference]: Without dead ends: 1846 [2021-12-17 16:59:19,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:19,827 INFO L933 BasicCegarLoop]: 1206 mSDtfsCounter, 7308 mSDsluCounter, 3798 mSDsCounter, 0 mSdLazyCounter, 3985 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7308 SdHoareTripleChecker+Valid, 5004 SdHoareTripleChecker+Invalid, 4011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:19,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7308 Valid, 5004 Invalid, 4011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3985 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:19,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2021-12-17 16:59:19,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1084. [2021-12-17 16:59:19,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.408530805687204) internal successors, (1486), 1083 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1486 transitions. [2021-12-17 16:59:19,886 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1486 transitions. Word has length 108 [2021-12-17 16:59:19,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:19,886 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1486 transitions. [2021-12-17 16:59:19,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:19,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1486 transitions. [2021-12-17 16:59:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 16:59:19,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:19,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:19,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 16:59:19,890 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:19,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash -860352434, now seen corresponding path program 1 times [2021-12-17 16:59:19,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:19,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108274938] [2021-12-17 16:59:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:19,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:20,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:20,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108274938] [2021-12-17 16:59:20,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108274938] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:20,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:20,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:20,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117267395] [2021-12-17 16:59:20,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:20,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:20,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:20,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:20,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:20,018 INFO L87 Difference]: Start difference. First operand 1084 states and 1486 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:21,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:21,596 INFO L93 Difference]: Finished difference Result 1929 states and 2656 transitions. [2021-12-17 16:59:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:21,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 16:59:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:21,602 INFO L225 Difference]: With dead ends: 1929 [2021-12-17 16:59:21,602 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 16:59:21,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:21,603 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 8553 mSDsluCounter, 2928 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8553 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:21,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8553 Valid, 3814 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 3127 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:59:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 16:59:21,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1084. [2021-12-17 16:59:21,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4075829383886256) internal successors, (1485), 1083 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1485 transitions. [2021-12-17 16:59:21,663 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1485 transitions. Word has length 110 [2021-12-17 16:59:21,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:21,663 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1485 transitions. [2021-12-17 16:59:21,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:21,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1485 transitions. [2021-12-17 16:59:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 16:59:21,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:21,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:21,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 16:59:21,666 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1432283502, now seen corresponding path program 1 times [2021-12-17 16:59:21,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:21,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74638986] [2021-12-17 16:59:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:21,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:21,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:21,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74638986] [2021-12-17 16:59:21,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74638986] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:21,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:21,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:21,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032044010] [2021-12-17 16:59:21,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:21,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:21,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:21,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:21,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:21,796 INFO L87 Difference]: Start difference. First operand 1084 states and 1485 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:23,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:23,578 INFO L93 Difference]: Finished difference Result 2047 states and 2831 transitions. [2021-12-17 16:59:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:23,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 16:59:23,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:23,584 INFO L225 Difference]: With dead ends: 2047 [2021-12-17 16:59:23,584 INFO L226 Difference]: Without dead ends: 1842 [2021-12-17 16:59:23,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:23,586 INFO L933 BasicCegarLoop]: 1141 mSDtfsCounter, 7981 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 3600 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7981 SdHoareTripleChecker+Valid, 4472 SdHoareTripleChecker+Invalid, 3644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:23,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7981 Valid, 4472 Invalid, 3644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3600 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:23,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2021-12-17 16:59:23,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1084. [2021-12-17 16:59:23,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4066350710900475) internal successors, (1484), 1083 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1484 transitions. [2021-12-17 16:59:23,663 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1484 transitions. Word has length 110 [2021-12-17 16:59:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:23,664 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1484 transitions. [2021-12-17 16:59:23,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1484 transitions. [2021-12-17 16:59:23,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 16:59:23,667 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:23,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:23,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 16:59:23,667 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:23,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:23,668 INFO L85 PathProgramCache]: Analyzing trace with hash 237293966, now seen corresponding path program 1 times [2021-12-17 16:59:23,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:23,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374012684] [2021-12-17 16:59:23,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:23,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:23,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:23,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374012684] [2021-12-17 16:59:23,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374012684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:23,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:23,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:23,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861228893] [2021-12-17 16:59:23,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:23,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:23,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:23,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:23,803 INFO L87 Difference]: Start difference. First operand 1084 states and 1484 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:25,480 INFO L93 Difference]: Finished difference Result 1963 states and 2712 transitions. [2021-12-17 16:59:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:25,480 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 16:59:25,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:25,485 INFO L225 Difference]: With dead ends: 1963 [2021-12-17 16:59:25,485 INFO L226 Difference]: Without dead ends: 1834 [2021-12-17 16:59:25,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:59:25,487 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 8262 mSDsluCounter, 3188 mSDsCounter, 0 mSdLazyCounter, 3365 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8262 SdHoareTripleChecker+Valid, 4153 SdHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 3365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:25,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8262 Valid, 4153 Invalid, 3440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 3365 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:59:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-12-17 16:59:25,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1084. [2021-12-17 16:59:25,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4056872037914692) internal successors, (1483), 1083 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:25,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1483 transitions. [2021-12-17 16:59:25,555 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1483 transitions. Word has length 110 [2021-12-17 16:59:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:25,555 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1483 transitions. [2021-12-17 16:59:25,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:25,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1483 transitions. [2021-12-17 16:59:25,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 16:59:25,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:25,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:25,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 16:59:25,559 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:25,559 INFO L85 PathProgramCache]: Analyzing trace with hash -212001511, now seen corresponding path program 1 times [2021-12-17 16:59:25,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:25,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774937785] [2021-12-17 16:59:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:25,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:25,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:25,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774937785] [2021-12-17 16:59:25,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774937785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:25,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:25,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:25,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477719521] [2021-12-17 16:59:25,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:25,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:25,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:25,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:25,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:25,697 INFO L87 Difference]: Start difference. First operand 1084 states and 1483 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:27,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:27,488 INFO L93 Difference]: Finished difference Result 2026 states and 2806 transitions. [2021-12-17 16:59:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:27,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 16:59:27,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:27,494 INFO L225 Difference]: With dead ends: 2026 [2021-12-17 16:59:27,494 INFO L226 Difference]: Without dead ends: 1842 [2021-12-17 16:59:27,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:59:27,495 INFO L933 BasicCegarLoop]: 1051 mSDtfsCounter, 8018 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 3558 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8018 SdHoareTripleChecker+Valid, 4443 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:27,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8018 Valid, 4443 Invalid, 3603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3558 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2021-12-17 16:59:27,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1084. [2021-12-17 16:59:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.404739336492891) internal successors, (1482), 1083 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:27,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1482 transitions. [2021-12-17 16:59:27,568 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1482 transitions. Word has length 110 [2021-12-17 16:59:27,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:27,569 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1482 transitions. [2021-12-17 16:59:27,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:27,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1482 transitions. [2021-12-17 16:59:27,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 16:59:27,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:27,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:27,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 16:59:27,572 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:27,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:27,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1993529301, now seen corresponding path program 1 times [2021-12-17 16:59:27,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:27,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395482985] [2021-12-17 16:59:27,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:27,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:27,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:27,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395482985] [2021-12-17 16:59:27,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395482985] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:27,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:27,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:27,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107532662] [2021-12-17 16:59:27,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:27,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:27,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:27,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:27,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:27,690 INFO L87 Difference]: Start difference. First operand 1084 states and 1482 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:29,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:29,273 INFO L93 Difference]: Finished difference Result 1938 states and 2657 transitions. [2021-12-17 16:59:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:29,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 16:59:29,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:29,278 INFO L225 Difference]: With dead ends: 1938 [2021-12-17 16:59:29,278 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 16:59:29,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:29,281 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 4140 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 3228 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:29,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4140 Valid, 3944 Invalid, 3294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3228 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 16:59:29,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 16:59:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1084. [2021-12-17 16:59:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4037914691943127) internal successors, (1481), 1083 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:29,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1481 transitions. [2021-12-17 16:59:29,357 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1481 transitions. Word has length 110 [2021-12-17 16:59:29,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:29,357 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1481 transitions. [2021-12-17 16:59:29,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1481 transitions. [2021-12-17 16:59:29,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 16:59:29,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:29,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:29,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 16:59:29,360 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:29,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:29,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1892592767, now seen corresponding path program 1 times [2021-12-17 16:59:29,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:29,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053759493] [2021-12-17 16:59:29,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:29,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:29,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:29,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053759493] [2021-12-17 16:59:29,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053759493] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:29,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:29,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:29,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034160982] [2021-12-17 16:59:29,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:29,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:29,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:29,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:29,502 INFO L87 Difference]: Start difference. First operand 1084 states and 1481 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:31,282 INFO L93 Difference]: Finished difference Result 2047 states and 2821 transitions. [2021-12-17 16:59:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:31,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 16:59:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:31,288 INFO L225 Difference]: With dead ends: 2047 [2021-12-17 16:59:31,289 INFO L226 Difference]: Without dead ends: 1842 [2021-12-17 16:59:31,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:59:31,290 INFO L933 BasicCegarLoop]: 1076 mSDtfsCounter, 7927 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 3556 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7927 SdHoareTripleChecker+Valid, 4500 SdHoareTripleChecker+Invalid, 3601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:31,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7927 Valid, 4500 Invalid, 3601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3556 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:31,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2021-12-17 16:59:31,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1084. [2021-12-17 16:59:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4028436018957346) internal successors, (1480), 1083 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1480 transitions. [2021-12-17 16:59:31,356 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1480 transitions. Word has length 110 [2021-12-17 16:59:31,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:31,357 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1480 transitions. [2021-12-17 16:59:31,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1480 transitions. [2021-12-17 16:59:31,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 16:59:31,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:31,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:31,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 16:59:31,360 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:31,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:31,361 INFO L85 PathProgramCache]: Analyzing trace with hash 8802059, now seen corresponding path program 1 times [2021-12-17 16:59:31,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:31,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993009110] [2021-12-17 16:59:31,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:31,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:31,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:31,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:31,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993009110] [2021-12-17 16:59:31,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993009110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:31,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:31,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:31,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164657866] [2021-12-17 16:59:31,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:31,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:31,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:31,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:31,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:31,531 INFO L87 Difference]: Start difference. First operand 1084 states and 1480 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:33,921 INFO L93 Difference]: Finished difference Result 1970 states and 2713 transitions. [2021-12-17 16:59:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:33,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 16:59:33,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:33,926 INFO L225 Difference]: With dead ends: 1970 [2021-12-17 16:59:33,926 INFO L226 Difference]: Without dead ends: 1834 [2021-12-17 16:59:33,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:59:33,927 INFO L933 BasicCegarLoop]: 1145 mSDtfsCounter, 7248 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 3922 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7248 SdHoareTripleChecker+Valid, 4845 SdHoareTripleChecker+Invalid, 3991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:33,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7248 Valid, 4845 Invalid, 3991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3922 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 16:59:33,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-12-17 16:59:33,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1084. [2021-12-17 16:59:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4018957345971563) internal successors, (1479), 1083 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1479 transitions. [2021-12-17 16:59:33,986 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1479 transitions. Word has length 110 [2021-12-17 16:59:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:33,986 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1479 transitions. [2021-12-17 16:59:33,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:33,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1479 transitions. [2021-12-17 16:59:33,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 16:59:33,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:33,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:33,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 16:59:33,989 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:33,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:33,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1694810938, now seen corresponding path program 1 times [2021-12-17 16:59:33,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:33,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035966691] [2021-12-17 16:59:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:33,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:34,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:34,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035966691] [2021-12-17 16:59:34,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035966691] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:34,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:34,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:34,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539541471] [2021-12-17 16:59:34,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:34,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:34,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:34,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:34,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:34,121 INFO L87 Difference]: Start difference. First operand 1084 states and 1479 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:36,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:36,081 INFO L93 Difference]: Finished difference Result 2204 states and 3022 transitions. [2021-12-17 16:59:36,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:36,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 16:59:36,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:36,087 INFO L225 Difference]: With dead ends: 2204 [2021-12-17 16:59:36,087 INFO L226 Difference]: Without dead ends: 1846 [2021-12-17 16:59:36,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:36,091 INFO L933 BasicCegarLoop]: 1351 mSDtfsCounter, 5514 mSDsluCounter, 4396 mSDsCounter, 0 mSdLazyCounter, 4555 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5514 SdHoareTripleChecker+Valid, 5747 SdHoareTripleChecker+Invalid, 4575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:36,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5514 Valid, 5747 Invalid, 4575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4555 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:59:36,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2021-12-17 16:59:36,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1084. [2021-12-17 16:59:36,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4009478672985782) internal successors, (1478), 1083 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:36,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1478 transitions. [2021-12-17 16:59:36,176 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1478 transitions. Word has length 110 [2021-12-17 16:59:36,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:36,176 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1478 transitions. [2021-12-17 16:59:36,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1478 transitions. [2021-12-17 16:59:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:36,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:36,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:36,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 16:59:36,179 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:36,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:36,180 INFO L85 PathProgramCache]: Analyzing trace with hash 28367950, now seen corresponding path program 1 times [2021-12-17 16:59:36,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:36,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788970342] [2021-12-17 16:59:36,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:36,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:36,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:36,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788970342] [2021-12-17 16:59:36,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788970342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:36,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:36,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:36,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757808428] [2021-12-17 16:59:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:36,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:36,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:36,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:36,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:36,312 INFO L87 Difference]: Start difference. First operand 1084 states and 1478 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:38,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:38,302 INFO L93 Difference]: Finished difference Result 1984 states and 2725 transitions. [2021-12-17 16:59:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:38,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:38,306 INFO L225 Difference]: With dead ends: 1984 [2021-12-17 16:59:38,306 INFO L226 Difference]: Without dead ends: 1834 [2021-12-17 16:59:38,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:38,307 INFO L933 BasicCegarLoop]: 1219 mSDtfsCounter, 5216 mSDsluCounter, 4137 mSDsCounter, 0 mSdLazyCounter, 4292 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5216 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 4338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 4292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:38,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5216 Valid, 5356 Invalid, 4338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 4292 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:59:38,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-12-17 16:59:38,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1084. [2021-12-17 16:59:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.4) internal successors, (1477), 1083 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1477 transitions. [2021-12-17 16:59:38,382 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1477 transitions. Word has length 112 [2021-12-17 16:59:38,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:38,383 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1477 transitions. [2021-12-17 16:59:38,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1477 transitions. [2021-12-17 16:59:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:38,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:38,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:38,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 16:59:38,384 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:38,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:38,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1907876888, now seen corresponding path program 1 times [2021-12-17 16:59:38,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:38,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071499771] [2021-12-17 16:59:38,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:38,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:38,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:38,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071499771] [2021-12-17 16:59:38,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071499771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:38,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:38,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:38,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597452353] [2021-12-17 16:59:38,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:38,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:38,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:38,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:38,516 INFO L87 Difference]: Start difference. First operand 1084 states and 1477 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:40,460 INFO L93 Difference]: Finished difference Result 1929 states and 2645 transitions. [2021-12-17 16:59:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:40,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:40,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:40,467 INFO L225 Difference]: With dead ends: 1929 [2021-12-17 16:59:40,467 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 16:59:40,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:40,469 INFO L933 BasicCegarLoop]: 1005 mSDtfsCounter, 6748 mSDsluCounter, 4296 mSDsCounter, 0 mSdLazyCounter, 4255 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6748 SdHoareTripleChecker+Valid, 5301 SdHoareTripleChecker+Invalid, 4356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:40,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6748 Valid, 5301 Invalid, 4356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4255 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:59:40,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 16:59:40,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1084. [2021-12-17 16:59:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3990521327014218) internal successors, (1476), 1083 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:40,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1476 transitions. [2021-12-17 16:59:40,568 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1476 transitions. Word has length 112 [2021-12-17 16:59:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:40,569 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1476 transitions. [2021-12-17 16:59:40,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:40,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1476 transitions. [2021-12-17 16:59:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:40,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:40,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:40,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 16:59:40,571 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:40,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:40,572 INFO L85 PathProgramCache]: Analyzing trace with hash -2035809722, now seen corresponding path program 1 times [2021-12-17 16:59:40,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:40,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762690677] [2021-12-17 16:59:40,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:40,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:40,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:40,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762690677] [2021-12-17 16:59:40,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762690677] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:40,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:40,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:40,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805577261] [2021-12-17 16:59:40,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:40,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:40,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:40,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:40,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:40,704 INFO L87 Difference]: Start difference. First operand 1084 states and 1476 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:42,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:42,567 INFO L93 Difference]: Finished difference Result 1970 states and 2707 transitions. [2021-12-17 16:59:42,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:42,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:42,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:42,571 INFO L225 Difference]: With dead ends: 1970 [2021-12-17 16:59:42,571 INFO L226 Difference]: Without dead ends: 1834 [2021-12-17 16:59:42,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-17 16:59:42,572 INFO L933 BasicCegarLoop]: 1094 mSDtfsCounter, 7327 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7327 SdHoareTripleChecker+Valid, 4741 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:42,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7327 Valid, 4741 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3806 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:42,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-12-17 16:59:42,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1084. [2021-12-17 16:59:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3981042654028435) internal successors, (1475), 1083 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1475 transitions. [2021-12-17 16:59:42,637 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1475 transitions. Word has length 112 [2021-12-17 16:59:42,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:42,637 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1475 transitions. [2021-12-17 16:59:42,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1475 transitions. [2021-12-17 16:59:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:42,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:42,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:42,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 16:59:42,639 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:42,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:42,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1790606885, now seen corresponding path program 1 times [2021-12-17 16:59:42,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:42,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258568929] [2021-12-17 16:59:42,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:42,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:42,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:42,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:42,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258568929] [2021-12-17 16:59:42,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258568929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:42,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:42,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:42,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773335275] [2021-12-17 16:59:42,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:42,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:42,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:42,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:42,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:42,781 INFO L87 Difference]: Start difference. First operand 1084 states and 1475 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:44,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:44,735 INFO L93 Difference]: Finished difference Result 1924 states and 2638 transitions. [2021-12-17 16:59:44,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:44,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:44,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:44,739 INFO L225 Difference]: With dead ends: 1924 [2021-12-17 16:59:44,739 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 16:59:44,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:44,740 INFO L933 BasicCegarLoop]: 1044 mSDtfsCounter, 6663 mSDsluCounter, 4417 mSDsCounter, 0 mSdLazyCounter, 4374 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6663 SdHoareTripleChecker+Valid, 5461 SdHoareTripleChecker+Invalid, 4474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 4374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:44,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6663 Valid, 5461 Invalid, 4474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 4374 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:59:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 16:59:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1084. [2021-12-17 16:59:44,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3971563981042654) internal successors, (1474), 1083 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:44,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1474 transitions. [2021-12-17 16:59:44,807 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1474 transitions. Word has length 112 [2021-12-17 16:59:44,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:44,807 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1474 transitions. [2021-12-17 16:59:44,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:44,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1474 transitions. [2021-12-17 16:59:44,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:44,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:44,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:44,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 16:59:44,809 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:44,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1445801686, now seen corresponding path program 1 times [2021-12-17 16:59:44,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:44,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79982351] [2021-12-17 16:59:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:44,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:44,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:44,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79982351] [2021-12-17 16:59:44,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79982351] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:44,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:44,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:44,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949133880] [2021-12-17 16:59:44,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:44,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:44,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:44,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:44,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:44,940 INFO L87 Difference]: Start difference. First operand 1084 states and 1474 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:46,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:46,791 INFO L93 Difference]: Finished difference Result 1970 states and 2704 transitions. [2021-12-17 16:59:46,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:46,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:46,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:46,795 INFO L225 Difference]: With dead ends: 1970 [2021-12-17 16:59:46,795 INFO L226 Difference]: Without dead ends: 1834 [2021-12-17 16:59:46,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:46,796 INFO L933 BasicCegarLoop]: 1219 mSDtfsCounter, 5152 mSDsluCounter, 4138 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5152 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 4318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:46,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5152 Valid, 5357 Invalid, 4318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 4273 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 16:59:46,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-12-17 16:59:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1084. [2021-12-17 16:59:46,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3962085308056873) internal successors, (1473), 1083 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1473 transitions. [2021-12-17 16:59:46,861 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1473 transitions. Word has length 112 [2021-12-17 16:59:46,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:46,861 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1473 transitions. [2021-12-17 16:59:46,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1473 transitions. [2021-12-17 16:59:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:46,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:46,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:46,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 16:59:46,863 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:46,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:46,864 INFO L85 PathProgramCache]: Analyzing trace with hash 977250997, now seen corresponding path program 1 times [2021-12-17 16:59:46,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:46,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352892527] [2021-12-17 16:59:46,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:46,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:46,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352892527] [2021-12-17 16:59:46,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352892527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:46,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:46,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:46,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201909601] [2021-12-17 16:59:46,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:46,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:46,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:46,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:46,990 INFO L87 Difference]: Start difference. First operand 1084 states and 1473 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:49,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:49,027 INFO L93 Difference]: Finished difference Result 1924 states and 2636 transitions. [2021-12-17 16:59:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:49,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:49,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:49,030 INFO L225 Difference]: With dead ends: 1924 [2021-12-17 16:59:49,030 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 16:59:49,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:49,031 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 6488 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 4672 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6488 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 4769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:49,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6488 Valid, 5824 Invalid, 4769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4672 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:59:49,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 16:59:49,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1084. [2021-12-17 16:59:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.395260663507109) internal successors, (1472), 1083 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1472 transitions. [2021-12-17 16:59:49,097 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1472 transitions. Word has length 112 [2021-12-17 16:59:49,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:49,097 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1472 transitions. [2021-12-17 16:59:49,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1472 transitions. [2021-12-17 16:59:49,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:49,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:49,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:49,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-17 16:59:49,099 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:49,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:49,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1047979927, now seen corresponding path program 1 times [2021-12-17 16:59:49,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:49,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326807279] [2021-12-17 16:59:49,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:49,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:49,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:49,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:49,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326807279] [2021-12-17 16:59:49,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326807279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:49,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:49,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 16:59:49,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997873271] [2021-12-17 16:59:49,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:49,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 16:59:49,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:49,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 16:59:49,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 16:59:49,292 INFO L87 Difference]: Start difference. First operand 1084 states and 1472 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:52,601 INFO L93 Difference]: Finished difference Result 2532 states and 3516 transitions. [2021-12-17 16:59:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 16:59:52,602 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:52,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:52,607 INFO L225 Difference]: With dead ends: 2532 [2021-12-17 16:59:52,607 INFO L226 Difference]: Without dead ends: 2426 [2021-12-17 16:59:52,608 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 [2021-12-17 16:59:52,608 INFO L933 BasicCegarLoop]: 1212 mSDtfsCounter, 9819 mSDsluCounter, 5449 mSDsCounter, 0 mSdLazyCounter, 5502 mSolverCounterSat, 882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9819 SdHoareTripleChecker+Valid, 6661 SdHoareTripleChecker+Invalid, 6384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 882 IncrementalHoareTripleChecker+Valid, 5502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:52,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9819 Valid, 6661 Invalid, 6384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [882 Valid, 5502 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 16:59:52,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2021-12-17 16:59:52,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1088. [2021-12-17 16:59:52,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3937677053824362) internal successors, (1476), 1087 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:52,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1476 transitions. [2021-12-17 16:59:52,720 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1476 transitions. Word has length 112 [2021-12-17 16:59:52,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:52,720 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1476 transitions. [2021-12-17 16:59:52,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1476 transitions. [2021-12-17 16:59:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:52,722 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:52,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:52,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 16:59:52,723 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:52,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash -619395701, now seen corresponding path program 1 times [2021-12-17 16:59:52,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:52,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064602743] [2021-12-17 16:59:52,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:52,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:52,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:52,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:52,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064602743] [2021-12-17 16:59:52,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064602743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:52,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:52,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:52,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496403672] [2021-12-17 16:59:52,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:52,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:52,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:52,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:52,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:52,859 INFO L87 Difference]: Start difference. First operand 1088 states and 1476 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:54,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:54,867 INFO L93 Difference]: Finished difference Result 1922 states and 2632 transitions. [2021-12-17 16:59:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:54,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:54,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:54,871 INFO L225 Difference]: With dead ends: 1922 [2021-12-17 16:59:54,871 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 16:59:54,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:54,872 INFO L933 BasicCegarLoop]: 1056 mSDtfsCounter, 6668 mSDsluCounter, 4468 mSDsCounter, 0 mSdLazyCounter, 4412 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6668 SdHoareTripleChecker+Valid, 5524 SdHoareTripleChecker+Invalid, 4511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 4412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:54,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6668 Valid, 5524 Invalid, 4511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 4412 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 16:59:54,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 16:59:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1088. [2021-12-17 16:59:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.392823418319169) internal successors, (1475), 1087 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1475 transitions. [2021-12-17 16:59:54,946 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1475 transitions. Word has length 112 [2021-12-17 16:59:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:54,946 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1475 transitions. [2021-12-17 16:59:54,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1475 transitions. [2021-12-17 16:59:54,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:54,948 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:54,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:54,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-17 16:59:54,948 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:54,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:54,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1653306335, now seen corresponding path program 1 times [2021-12-17 16:59:54,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:54,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150675240] [2021-12-17 16:59:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:54,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:55,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:55,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150675240] [2021-12-17 16:59:55,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150675240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:55,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:55,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:55,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180376114] [2021-12-17 16:59:55,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:55,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:55,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:55,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:55,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:55,066 INFO L87 Difference]: Start difference. First operand 1088 states and 1475 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:56,883 INFO L93 Difference]: Finished difference Result 1988 states and 2714 transitions. [2021-12-17 16:59:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:56,888 INFO L225 Difference]: With dead ends: 1988 [2021-12-17 16:59:56,888 INFO L226 Difference]: Without dead ends: 1838 [2021-12-17 16:59:56,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:56,890 INFO L933 BasicCegarLoop]: 1231 mSDtfsCounter, 6462 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 3943 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6462 SdHoareTripleChecker+Valid, 5020 SdHoareTripleChecker+Invalid, 3998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:56,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6462 Valid, 5020 Invalid, 3998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3943 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 16:59:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2021-12-17 16:59:57,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1088. [2021-12-17 16:59:57,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3918791312559018) internal successors, (1474), 1087 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:57,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1474 transitions. [2021-12-17 16:59:57,003 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1474 transitions. Word has length 112 [2021-12-17 16:59:57,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:57,004 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1474 transitions. [2021-12-17 16:59:57,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1474 transitions. [2021-12-17 16:59:57,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:57,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:57,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:57,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-17 16:59:57,006 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:57,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:57,007 INFO L85 PathProgramCache]: Analyzing trace with hash -353306795, now seen corresponding path program 1 times [2021-12-17 16:59:57,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:57,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722989559] [2021-12-17 16:59:57,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:57,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:57,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:57,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722989559] [2021-12-17 16:59:57,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722989559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:57,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:57,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:57,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130209661] [2021-12-17 16:59:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:57,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:57,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:57,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:57,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:57,123 INFO L87 Difference]: Start difference. First operand 1088 states and 1474 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:58,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 16:59:58,890 INFO L93 Difference]: Finished difference Result 1929 states and 2636 transitions. [2021-12-17 16:59:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 16:59:58,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 16:59:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 16:59:58,893 INFO L225 Difference]: With dead ends: 1929 [2021-12-17 16:59:58,893 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 16:59:58,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 16:59:58,895 INFO L933 BasicCegarLoop]: 1110 mSDtfsCounter, 3676 mSDsluCounter, 3606 mSDsCounter, 0 mSdLazyCounter, 3792 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3676 SdHoareTripleChecker+Valid, 4716 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 16:59:58,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3676 Valid, 4716 Invalid, 3853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3792 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 16:59:58,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 16:59:59,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1088. [2021-12-17 16:59:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3909348441926346) internal successors, (1473), 1087 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1473 transitions. [2021-12-17 16:59:59,003 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1473 transitions. Word has length 112 [2021-12-17 16:59:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 16:59:59,003 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1473 transitions. [2021-12-17 16:59:59,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 16:59:59,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1473 transitions. [2021-12-17 16:59:59,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 16:59:59,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:59:59,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 16:59:59,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-17 16:59:59,005 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 16:59:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:59:59,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2030801721, now seen corresponding path program 1 times [2021-12-17 16:59:59,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:59:59,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822748643] [2021-12-17 16:59:59,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:59:59,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 16:59:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 16:59:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 16:59:59,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 16:59:59,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822748643] [2021-12-17 16:59:59,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822748643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 16:59:59,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 16:59:59,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 16:59:59,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664735103] [2021-12-17 16:59:59,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 16:59:59,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 16:59:59,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 16:59:59,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 16:59:59,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 16:59:59,112 INFO L87 Difference]: Start difference. First operand 1088 states and 1473 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:00,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:00,956 INFO L93 Difference]: Finished difference Result 1929 states and 2635 transitions. [2021-12-17 17:00:00,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:00,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 17:00:00,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:00,959 INFO L225 Difference]: With dead ends: 1929 [2021-12-17 17:00:00,959 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 17:00:00,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:00,960 INFO L933 BasicCegarLoop]: 1179 mSDtfsCounter, 5308 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 3929 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5308 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 4017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:00,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5308 Valid, 4882 Invalid, 4017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3929 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:00:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 17:00:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1088. [2021-12-17 17:00:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3899905571293674) internal successors, (1472), 1087 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:01,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1472 transitions. [2021-12-17 17:00:01,045 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1472 transitions. Word has length 112 [2021-12-17 17:00:01,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:01,046 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1472 transitions. [2021-12-17 17:00:01,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:01,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1472 transitions. [2021-12-17 17:00:01,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 17:00:01,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:01,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:01,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-17 17:00:01,048 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:01,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash -469685084, now seen corresponding path program 1 times [2021-12-17 17:00:01,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:01,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443560782] [2021-12-17 17:00:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:01,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:01,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:01,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443560782] [2021-12-17 17:00:01,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443560782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:01,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:01,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:01,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026293834] [2021-12-17 17:00:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:01,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:01,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:01,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:01,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:01,150 INFO L87 Difference]: Start difference. First operand 1088 states and 1472 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:02,970 INFO L93 Difference]: Finished difference Result 1924 states and 2629 transitions. [2021-12-17 17:00:02,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:02,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 17:00:02,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:02,974 INFO L225 Difference]: With dead ends: 1924 [2021-12-17 17:00:02,974 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 17:00:02,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:02,975 INFO L933 BasicCegarLoop]: 1110 mSDtfsCounter, 6213 mSDsluCounter, 3608 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6213 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 3892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:02,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6213 Valid, 4718 Invalid, 3892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:00:02,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 17:00:03,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1088. [2021-12-17 17:00:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3890462700661002) internal successors, (1471), 1087 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:03,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1471 transitions. [2021-12-17 17:00:03,091 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1471 transitions. Word has length 112 [2021-12-17 17:00:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:03,091 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1471 transitions. [2021-12-17 17:00:03,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1471 transitions. [2021-12-17 17:00:03,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 17:00:03,092 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:03,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:03,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-17 17:00:03,093 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:03,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:03,093 INFO L85 PathProgramCache]: Analyzing trace with hash -79489975, now seen corresponding path program 1 times [2021-12-17 17:00:03,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:03,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169948153] [2021-12-17 17:00:03,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:03,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:03,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:03,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:03,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169948153] [2021-12-17 17:00:03,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169948153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:03,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:03,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:03,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62206659] [2021-12-17 17:00:03,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:03,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:03,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:03,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:03,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:03,203 INFO L87 Difference]: Start difference. First operand 1088 states and 1471 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:05,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:05,160 INFO L93 Difference]: Finished difference Result 2080 states and 2838 transitions. [2021-12-17 17:00:05,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:05,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 17:00:05,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:05,162 INFO L225 Difference]: With dead ends: 2080 [2021-12-17 17:00:05,162 INFO L226 Difference]: Without dead ends: 1846 [2021-12-17 17:00:05,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:05,164 INFO L933 BasicCegarLoop]: 1351 mSDtfsCounter, 7059 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 4047 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7059 SdHoareTripleChecker+Valid, 5213 SdHoareTripleChecker+Invalid, 4088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 4047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:05,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7059 Valid, 5213 Invalid, 4088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 4047 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:00:05,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2021-12-17 17:00:05,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1088. [2021-12-17 17:00:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.388101983002833) internal successors, (1470), 1087 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:05,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1470 transitions. [2021-12-17 17:00:05,256 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1470 transitions. Word has length 112 [2021-12-17 17:00:05,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:05,256 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1470 transitions. [2021-12-17 17:00:05,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1470 transitions. [2021-12-17 17:00:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 17:00:05,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:05,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:05,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-17 17:00:05,259 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:05,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:05,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1562562040, now seen corresponding path program 1 times [2021-12-17 17:00:05,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:05,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240687455] [2021-12-17 17:00:05,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:05,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:05,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:05,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:05,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240687455] [2021-12-17 17:00:05,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240687455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:05,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:05,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:05,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432712057] [2021-12-17 17:00:05,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:05,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:05,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:05,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:05,370 INFO L87 Difference]: Start difference. First operand 1088 states and 1470 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:07,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:07,162 INFO L93 Difference]: Finished difference Result 1929 states and 2632 transitions. [2021-12-17 17:00:07,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:07,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 17:00:07,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:07,165 INFO L225 Difference]: With dead ends: 1929 [2021-12-17 17:00:07,165 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 17:00:07,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:07,166 INFO L933 BasicCegarLoop]: 1110 mSDtfsCounter, 5421 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 3774 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5421 SdHoareTripleChecker+Valid, 4713 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:07,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5421 Valid, 4713 Invalid, 3865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3774 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:00:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 17:00:07,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1088. [2021-12-17 17:00:07,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3871576959395657) internal successors, (1469), 1087 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:07,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1469 transitions. [2021-12-17 17:00:07,260 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1469 transitions. Word has length 112 [2021-12-17 17:00:07,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:07,260 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1469 transitions. [2021-12-17 17:00:07,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:07,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1469 transitions. [2021-12-17 17:00:07,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 17:00:07,262 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:07,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:07,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-17 17:00:07,263 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:07,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:07,263 INFO L85 PathProgramCache]: Analyzing trace with hash -725792126, now seen corresponding path program 1 times [2021-12-17 17:00:07,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:07,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606690490] [2021-12-17 17:00:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:07,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:07,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:07,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606690490] [2021-12-17 17:00:07,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606690490] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:07,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:07,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:07,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159356345] [2021-12-17 17:00:07,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:07,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:07,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:07,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:07,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:07,376 INFO L87 Difference]: Start difference. First operand 1088 states and 1469 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:09,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:09,391 INFO L93 Difference]: Finished difference Result 1988 states and 2710 transitions. [2021-12-17 17:00:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:09,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-17 17:00:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:09,394 INFO L225 Difference]: With dead ends: 1988 [2021-12-17 17:00:09,394 INFO L226 Difference]: Without dead ends: 1838 [2021-12-17 17:00:09,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:09,395 INFO L933 BasicCegarLoop]: 1272 mSDtfsCounter, 4940 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 4516 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 5853 SdHoareTripleChecker+Invalid, 4561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 4516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:09,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4940 Valid, 5853 Invalid, 4561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 4516 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:00:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2021-12-17 17:00:09,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1088. [2021-12-17 17:00:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3862134088762983) internal successors, (1468), 1087 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1468 transitions. [2021-12-17 17:00:09,480 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1468 transitions. Word has length 112 [2021-12-17 17:00:09,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:09,480 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1468 transitions. [2021-12-17 17:00:09,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1468 transitions. [2021-12-17 17:00:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 17:00:09,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:09,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:09,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-17 17:00:09,483 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:09,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:09,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1057837107, now seen corresponding path program 1 times [2021-12-17 17:00:09,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:09,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038297616] [2021-12-17 17:00:09,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:09,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:09,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:09,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038297616] [2021-12-17 17:00:09,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038297616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:09,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:09,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:09,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114969415] [2021-12-17 17:00:09,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:09,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:09,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:09,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:09,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:09,591 INFO L87 Difference]: Start difference. First operand 1088 states and 1468 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:11,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:11,576 INFO L93 Difference]: Finished difference Result 1924 states and 2625 transitions. [2021-12-17 17:00:11,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:11,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-17 17:00:11,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:11,578 INFO L225 Difference]: With dead ends: 1924 [2021-12-17 17:00:11,578 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 17:00:11,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:11,579 INFO L933 BasicCegarLoop]: 1290 mSDtfsCounter, 3336 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 4302 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 5316 SdHoareTripleChecker+Invalid, 4359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:11,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3336 Valid, 5316 Invalid, 4359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4302 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:00:11,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 17:00:11,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1084. [2021-12-17 17:00:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3867298578199052) internal successors, (1463), 1083 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1463 transitions. [2021-12-17 17:00:11,666 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1463 transitions. Word has length 113 [2021-12-17 17:00:11,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:11,666 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1463 transitions. [2021-12-17 17:00:11,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1463 transitions. [2021-12-17 17:00:11,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:11,668 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:11,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:11,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-17 17:00:11,669 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:11,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:11,669 INFO L85 PathProgramCache]: Analyzing trace with hash -946629140, now seen corresponding path program 1 times [2021-12-17 17:00:11,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:11,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054584262] [2021-12-17 17:00:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:11,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:11,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:11,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054584262] [2021-12-17 17:00:11,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054584262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:11,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:11,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:11,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779030744] [2021-12-17 17:00:11,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:11,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:11,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:11,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:11,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:11,774 INFO L87 Difference]: Start difference. First operand 1084 states and 1463 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:13,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:13,656 INFO L93 Difference]: Finished difference Result 1938 states and 2637 transitions. [2021-12-17 17:00:13,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:13,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:13,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:13,658 INFO L225 Difference]: With dead ends: 1938 [2021-12-17 17:00:13,658 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 17:00:13,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:13,659 INFO L933 BasicCegarLoop]: 1243 mSDtfsCounter, 5293 mSDsluCounter, 3813 mSDsCounter, 0 mSdLazyCounter, 4042 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5293 SdHoareTripleChecker+Valid, 5056 SdHoareTripleChecker+Invalid, 4130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:13,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5293 Valid, 5056 Invalid, 4130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4042 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:00:13,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 17:00:13,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1084. [2021-12-17 17:00:13,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3857819905213271) internal successors, (1462), 1083 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:13,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1462 transitions. [2021-12-17 17:00:13,791 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1462 transitions. Word has length 114 [2021-12-17 17:00:13,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:13,792 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1462 transitions. [2021-12-17 17:00:13,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:13,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1462 transitions. [2021-12-17 17:00:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:13,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:13,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:13,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-17 17:00:13,795 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1355474368, now seen corresponding path program 1 times [2021-12-17 17:00:13,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:13,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784888942] [2021-12-17 17:00:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:13,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:13,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:13,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784888942] [2021-12-17 17:00:13,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784888942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:13,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:13,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:13,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858981302] [2021-12-17 17:00:13,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:13,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:13,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:13,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:13,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:13,926 INFO L87 Difference]: Start difference. First operand 1084 states and 1462 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:16,079 INFO L93 Difference]: Finished difference Result 1884 states and 2558 transitions. [2021-12-17 17:00:16,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:16,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:16,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:16,082 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:00:16,082 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:16,082 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 [2021-12-17 17:00:16,083 INFO L933 BasicCegarLoop]: 1155 mSDtfsCounter, 6295 mSDsluCounter, 4653 mSDsCounter, 0 mSdLazyCounter, 4698 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6295 SdHoareTripleChecker+Valid, 5808 SdHoareTripleChecker+Invalid, 4875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:16,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6295 Valid, 5808 Invalid, 4875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4698 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 17:00:16,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:16,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1084. [2021-12-17 17:00:16,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3848341232227488) internal successors, (1461), 1083 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1461 transitions. [2021-12-17 17:00:16,180 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1461 transitions. Word has length 114 [2021-12-17 17:00:16,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:16,180 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1461 transitions. [2021-12-17 17:00:16,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:16,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1461 transitions. [2021-12-17 17:00:16,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:16,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:16,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:16,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-17 17:00:16,182 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:16,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:16,183 INFO L85 PathProgramCache]: Analyzing trace with hash -987372193, now seen corresponding path program 1 times [2021-12-17 17:00:16,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:16,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161486375] [2021-12-17 17:00:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:16,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:16,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:16,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:16,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161486375] [2021-12-17 17:00:16,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161486375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:16,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:16,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:00:16,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210340615] [2021-12-17 17:00:16,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:16,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:16,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:16,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:16,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:16,393 INFO L87 Difference]: Start difference. First operand 1084 states and 1461 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:19,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:19,488 INFO L93 Difference]: Finished difference Result 2404 states and 3304 transitions. [2021-12-17 17:00:19,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:00:19,489 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:19,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:19,491 INFO L225 Difference]: With dead ends: 2404 [2021-12-17 17:00:19,492 INFO L226 Difference]: Without dead ends: 2306 [2021-12-17 17:00:19,492 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 [2021-12-17 17:00:19,493 INFO L933 BasicCegarLoop]: 1206 mSDtfsCounter, 9316 mSDsluCounter, 4164 mSDsCounter, 0 mSdLazyCounter, 4416 mSolverCounterSat, 993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9316 SdHoareTripleChecker+Valid, 5370 SdHoareTripleChecker+Invalid, 5409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 993 IncrementalHoareTripleChecker+Valid, 4416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:19,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9316 Valid, 5370 Invalid, 5409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [993 Valid, 4416 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:00:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2021-12-17 17:00:19,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1088. [2021-12-17 17:00:19,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3833805476864967) internal successors, (1465), 1087 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:19,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1465 transitions. [2021-12-17 17:00:19,604 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1465 transitions. Word has length 114 [2021-12-17 17:00:19,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:19,604 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1465 transitions. [2021-12-17 17:00:19,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:19,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1465 transitions. [2021-12-17 17:00:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:19,605 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:19,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:19,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-17 17:00:19,605 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash -351977045, now seen corresponding path program 1 times [2021-12-17 17:00:19,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:19,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012954764] [2021-12-17 17:00:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:19,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:19,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:19,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012954764] [2021-12-17 17:00:19,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012954764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:19,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:19,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:19,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913206743] [2021-12-17 17:00:19,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:19,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:19,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:19,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:19,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:19,741 INFO L87 Difference]: Start difference. First operand 1088 states and 1465 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:21,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:21,848 INFO L93 Difference]: Finished difference Result 1880 states and 2552 transitions. [2021-12-17 17:00:21,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:21,848 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:21,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:21,850 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:00:21,850 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:21,851 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 [2021-12-17 17:00:21,851 INFO L933 BasicCegarLoop]: 1095 mSDtfsCounter, 6395 mSDsluCounter, 4478 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6395 SdHoareTripleChecker+Valid, 5573 SdHoareTripleChecker+Invalid, 4669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:21,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6395 Valid, 5573 Invalid, 4669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:00:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:22,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1088. [2021-12-17 17:00:22,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3824362606232294) internal successors, (1464), 1087 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:22,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1464 transitions. [2021-12-17 17:00:22,008 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1464 transitions. Word has length 114 [2021-12-17 17:00:22,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:22,008 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1464 transitions. [2021-12-17 17:00:22,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:22,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1464 transitions. [2021-12-17 17:00:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:22,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:22,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:22,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-17 17:00:22,011 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:22,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1812075390, now seen corresponding path program 1 times [2021-12-17 17:00:22,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:22,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664390317] [2021-12-17 17:00:22,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:22,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:22,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:22,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664390317] [2021-12-17 17:00:22,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664390317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:22,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:22,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:22,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935043535] [2021-12-17 17:00:22,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:22,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:22,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:22,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:22,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:22,138 INFO L87 Difference]: Start difference. First operand 1088 states and 1464 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:24,313 INFO L93 Difference]: Finished difference Result 1880 states and 2551 transitions. [2021-12-17 17:00:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:24,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:24,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:24,316 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:00:24,316 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:24,316 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 [2021-12-17 17:00:24,317 INFO L933 BasicCegarLoop]: 1150 mSDtfsCounter, 6294 mSDsluCounter, 4641 mSDsCounter, 0 mSdLazyCounter, 4661 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6294 SdHoareTripleChecker+Valid, 5791 SdHoareTripleChecker+Invalid, 4838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:24,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6294 Valid, 5791 Invalid, 4838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4661 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 17:00:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:24,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1088. [2021-12-17 17:00:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3814919735599622) internal successors, (1463), 1087 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1463 transitions. [2021-12-17 17:00:24,436 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1463 transitions. Word has length 114 [2021-12-17 17:00:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:24,436 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1463 transitions. [2021-12-17 17:00:24,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1463 transitions. [2021-12-17 17:00:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:24,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:24,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:24,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-17 17:00:24,437 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:24,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:24,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1847714225, now seen corresponding path program 1 times [2021-12-17 17:00:24,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:24,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913455646] [2021-12-17 17:00:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:24,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:24,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:24,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913455646] [2021-12-17 17:00:24,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913455646] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:24,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:24,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:24,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804547960] [2021-12-17 17:00:24,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:24,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:24,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:24,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:24,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:24,541 INFO L87 Difference]: Start difference. First operand 1088 states and 1463 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:26,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:26,429 INFO L93 Difference]: Finished difference Result 1884 states and 2554 transitions. [2021-12-17 17:00:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:26,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:26,432 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:00:26,432 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:26,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:26,433 INFO L933 BasicCegarLoop]: 1215 mSDtfsCounter, 4955 mSDsluCounter, 3780 mSDsCounter, 0 mSdLazyCounter, 4105 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4955 SdHoareTripleChecker+Valid, 4995 SdHoareTripleChecker+Invalid, 4265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 4105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:26,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4955 Valid, 4995 Invalid, 4265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 4105 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:00:26,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:26,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1088. [2021-12-17 17:00:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.380547686496695) internal successors, (1462), 1087 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1462 transitions. [2021-12-17 17:00:26,554 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1462 transitions. Word has length 114 [2021-12-17 17:00:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:26,554 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1462 transitions. [2021-12-17 17:00:26,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1462 transitions. [2021-12-17 17:00:26,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:26,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:26,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:26,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-17 17:00:26,556 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:26,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1611191930, now seen corresponding path program 1 times [2021-12-17 17:00:26,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:26,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968564701] [2021-12-17 17:00:26,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:26,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:26,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:26,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:26,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968564701] [2021-12-17 17:00:26,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968564701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:26,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:26,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:00:26,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720441448] [2021-12-17 17:00:26,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:26,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:26,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:26,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:26,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:26,726 INFO L87 Difference]: Start difference. First operand 1088 states and 1462 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:29,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:29,799 INFO L93 Difference]: Finished difference Result 2396 states and 3291 transitions. [2021-12-17 17:00:29,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:00:29,799 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:29,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:29,802 INFO L225 Difference]: With dead ends: 2396 [2021-12-17 17:00:29,802 INFO L226 Difference]: Without dead ends: 2302 [2021-12-17 17:00:29,803 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 [2021-12-17 17:00:29,806 INFO L933 BasicCegarLoop]: 1194 mSDtfsCounter, 9330 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 4371 mSolverCounterSat, 995 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9330 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 5366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 995 IncrementalHoareTripleChecker+Valid, 4371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:29,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9330 Valid, 5337 Invalid, 5366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [995 Valid, 4371 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:00:29,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2021-12-17 17:00:29,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1092. [2021-12-17 17:00:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1063 states have (on average 1.3791157102539982) internal successors, (1466), 1091 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1466 transitions. [2021-12-17 17:00:29,955 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1466 transitions. Word has length 114 [2021-12-17 17:00:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:29,956 INFO L470 AbstractCegarLoop]: Abstraction has 1092 states and 1466 transitions. [2021-12-17 17:00:29,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1466 transitions. [2021-12-17 17:00:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:29,957 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:29,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:29,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-17 17:00:29,957 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:29,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:29,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1368364718, now seen corresponding path program 1 times [2021-12-17 17:00:29,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:29,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639606445] [2021-12-17 17:00:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:29,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:30,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:30,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639606445] [2021-12-17 17:00:30,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639606445] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:30,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:30,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:30,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286185081] [2021-12-17 17:00:30,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:30,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:30,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:30,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:30,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:30,097 INFO L87 Difference]: Start difference. First operand 1092 states and 1466 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:32,253 INFO L93 Difference]: Finished difference Result 1880 states and 2547 transitions. [2021-12-17 17:00:32,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:32,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:32,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:32,256 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:00:32,256 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:32,257 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 [2021-12-17 17:00:32,257 INFO L933 BasicCegarLoop]: 1144 mSDtfsCounter, 6297 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 4618 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6297 SdHoareTripleChecker+Valid, 5768 SdHoareTripleChecker+Invalid, 4795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:32,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6297 Valid, 5768 Invalid, 4795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4618 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:00:32,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:32,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1092. [2021-12-17 17:00:32,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1063 states have (on average 1.3781749764816558) internal successors, (1465), 1091 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1465 transitions. [2021-12-17 17:00:32,384 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1465 transitions. Word has length 114 [2021-12-17 17:00:32,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:32,384 INFO L470 AbstractCegarLoop]: Abstraction has 1092 states and 1465 transitions. [2021-12-17 17:00:32,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:32,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1465 transitions. [2021-12-17 17:00:32,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:32,386 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:32,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:32,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-17 17:00:32,386 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:32,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:32,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2003131297, now seen corresponding path program 1 times [2021-12-17 17:00:32,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:32,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637529053] [2021-12-17 17:00:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:32,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:32,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:32,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637529053] [2021-12-17 17:00:32,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637529053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:32,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:32,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:00:32,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310700238] [2021-12-17 17:00:32,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:32,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:32,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:32,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:32,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:32,560 INFO L87 Difference]: Start difference. First operand 1092 states and 1465 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:35,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:35,977 INFO L93 Difference]: Finished difference Result 2404 states and 3295 transitions. [2021-12-17 17:00:35,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:00:35,978 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:35,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:35,980 INFO L225 Difference]: With dead ends: 2404 [2021-12-17 17:00:35,980 INFO L226 Difference]: Without dead ends: 2306 [2021-12-17 17:00:35,981 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 [2021-12-17 17:00:35,982 INFO L933 BasicCegarLoop]: 1249 mSDtfsCounter, 8523 mSDsluCounter, 4900 mSDsCounter, 0 mSdLazyCounter, 5120 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8523 SdHoareTripleChecker+Valid, 6149 SdHoareTripleChecker+Invalid, 6098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 5120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:35,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8523 Valid, 6149 Invalid, 6098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [978 Valid, 5120 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:00:35,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2021-12-17 17:00:36,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1096. [2021-12-17 17:00:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1067 states have (on average 1.3767572633552014) internal successors, (1469), 1095 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:36,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1469 transitions. [2021-12-17 17:00:36,098 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1469 transitions. Word has length 114 [2021-12-17 17:00:36,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:36,099 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1469 transitions. [2021-12-17 17:00:36,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:36,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1469 transitions. [2021-12-17 17:00:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:36,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:36,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:36,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-17 17:00:36,100 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:36,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:36,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1167481258, now seen corresponding path program 1 times [2021-12-17 17:00:36,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:36,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208141043] [2021-12-17 17:00:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:36,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:36,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:36,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208141043] [2021-12-17 17:00:36,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208141043] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:36,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:36,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:00:36,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683503695] [2021-12-17 17:00:36,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:36,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:36,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:36,282 INFO L87 Difference]: Start difference. First operand 1096 states and 1469 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:39,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:39,657 INFO L93 Difference]: Finished difference Result 2396 states and 3288 transitions. [2021-12-17 17:00:39,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:00:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:39,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:39,660 INFO L225 Difference]: With dead ends: 2396 [2021-12-17 17:00:39,660 INFO L226 Difference]: Without dead ends: 2302 [2021-12-17 17:00:39,661 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 [2021-12-17 17:00:39,661 INFO L933 BasicCegarLoop]: 1179 mSDtfsCounter, 11199 mSDsluCounter, 4610 mSDsCounter, 0 mSdLazyCounter, 4795 mSolverCounterSat, 1198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11199 SdHoareTripleChecker+Valid, 5789 SdHoareTripleChecker+Invalid, 5993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1198 IncrementalHoareTripleChecker+Valid, 4795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:39,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11199 Valid, 5789 Invalid, 5993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1198 Valid, 4795 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:00:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2021-12-17 17:00:39,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1100. [2021-12-17 17:00:39,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1071 states have (on average 1.3753501400560224) internal successors, (1473), 1099 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:39,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1473 transitions. [2021-12-17 17:00:39,784 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1473 transitions. Word has length 114 [2021-12-17 17:00:39,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:39,784 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1473 transitions. [2021-12-17 17:00:39,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1473 transitions. [2021-12-17 17:00:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:39,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:39,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:39,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-17 17:00:39,787 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:39,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash -340131803, now seen corresponding path program 1 times [2021-12-17 17:00:39,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:39,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842735971] [2021-12-17 17:00:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:39,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:39,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:39,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842735971] [2021-12-17 17:00:39,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842735971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:39,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:39,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:39,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020021387] [2021-12-17 17:00:39,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:39,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:39,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:39,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:39,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:39,902 INFO L87 Difference]: Start difference. First operand 1100 states and 1473 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:42,208 INFO L93 Difference]: Finished difference Result 1879 states and 2543 transitions. [2021-12-17 17:00:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:42,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:42,212 INFO L225 Difference]: With dead ends: 1879 [2021-12-17 17:00:42,212 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:42,212 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 [2021-12-17 17:00:42,213 INFO L933 BasicCegarLoop]: 1131 mSDtfsCounter, 6317 mSDsluCounter, 4585 mSDsCounter, 0 mSdLazyCounter, 4554 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6317 SdHoareTripleChecker+Valid, 5716 SdHoareTripleChecker+Invalid, 4731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:42,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6317 Valid, 5716 Invalid, 4731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4554 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 17:00:42,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:42,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1100. [2021-12-17 17:00:42,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1071 states have (on average 1.3744164332399627) internal successors, (1472), 1099 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:42,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1472 transitions. [2021-12-17 17:00:42,379 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1472 transitions. Word has length 114 [2021-12-17 17:00:42,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:42,379 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1472 transitions. [2021-12-17 17:00:42,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:42,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1472 transitions. [2021-12-17 17:00:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:42,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:42,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:42,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-17 17:00:42,380 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:42,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:42,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1608318294, now seen corresponding path program 1 times [2021-12-17 17:00:42,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:42,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208566254] [2021-12-17 17:00:42,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:42,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:42,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:42,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208566254] [2021-12-17 17:00:42,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208566254] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:42,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:42,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:42,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090440381] [2021-12-17 17:00:42,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:42,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:42,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:42,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:42,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:42,486 INFO L87 Difference]: Start difference. First operand 1100 states and 1472 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:44,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:44,517 INFO L93 Difference]: Finished difference Result 1880 states and 2543 transitions. [2021-12-17 17:00:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:44,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:44,520 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:00:44,520 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:44,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:00:44,521 INFO L933 BasicCegarLoop]: 1145 mSDtfsCounter, 3521 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 3818 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3521 SdHoareTripleChecker+Valid, 4725 SdHoareTripleChecker+Invalid, 3926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 3818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:44,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3521 Valid, 4725 Invalid, 3926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 3818 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:00:44,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:44,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1100. [2021-12-17 17:00:44,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1071 states have (on average 1.373482726423903) internal successors, (1471), 1099 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:44,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1471 transitions. [2021-12-17 17:00:44,665 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1471 transitions. Word has length 114 [2021-12-17 17:00:44,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:44,665 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1471 transitions. [2021-12-17 17:00:44,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:44,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1471 transitions. [2021-12-17 17:00:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:44,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:44,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:44,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-17 17:00:44,667 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2040385468, now seen corresponding path program 1 times [2021-12-17 17:00:44,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:44,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926814417] [2021-12-17 17:00:44,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:44,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:44,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:44,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926814417] [2021-12-17 17:00:44,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926814417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:44,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:44,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:44,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839370968] [2021-12-17 17:00:44,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:44,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:44,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:44,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:44,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:44,779 INFO L87 Difference]: Start difference. First operand 1100 states and 1471 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:46,921 INFO L93 Difference]: Finished difference Result 1879 states and 2540 transitions. [2021-12-17 17:00:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:46,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:46,923 INFO L225 Difference]: With dead ends: 1879 [2021-12-17 17:00:46,924 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:46,924 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 [2021-12-17 17:00:46,925 INFO L933 BasicCegarLoop]: 1143 mSDtfsCounter, 6297 mSDsluCounter, 4621 mSDsCounter, 0 mSdLazyCounter, 4539 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6297 SdHoareTripleChecker+Valid, 5764 SdHoareTripleChecker+Invalid, 4716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:46,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6297 Valid, 5764 Invalid, 4716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4539 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:00:46,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:47,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1100. [2021-12-17 17:00:47,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1071 states have (on average 1.3725490196078431) internal successors, (1470), 1099 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1470 transitions. [2021-12-17 17:00:47,049 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1470 transitions. Word has length 114 [2021-12-17 17:00:47,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:47,050 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1470 transitions. [2021-12-17 17:00:47,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1470 transitions. [2021-12-17 17:00:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:47,051 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:47,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:47,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-17 17:00:47,052 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:47,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1422313079, now seen corresponding path program 1 times [2021-12-17 17:00:47,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:47,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486584250] [2021-12-17 17:00:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:47,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:47,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:47,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486584250] [2021-12-17 17:00:47,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486584250] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:47,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:47,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:00:47,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43117811] [2021-12-17 17:00:47,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:47,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:47,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:47,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:47,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:47,223 INFO L87 Difference]: Start difference. First operand 1100 states and 1470 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:50,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:50,713 INFO L93 Difference]: Finished difference Result 2394 states and 3281 transitions. [2021-12-17 17:00:50,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:00:50,713 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:50,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:50,716 INFO L225 Difference]: With dead ends: 2394 [2021-12-17 17:00:50,716 INFO L226 Difference]: Without dead ends: 2301 [2021-12-17 17:00:50,716 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 [2021-12-17 17:00:50,717 INFO L933 BasicCegarLoop]: 1175 mSDtfsCounter, 11167 mSDsluCounter, 5224 mSDsCounter, 0 mSdLazyCounter, 5226 mSolverCounterSat, 1204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11167 SdHoareTripleChecker+Valid, 6399 SdHoareTripleChecker+Invalid, 6430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1204 IncrementalHoareTripleChecker+Valid, 5226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:50,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11167 Valid, 6399 Invalid, 6430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1204 Valid, 5226 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 17:00:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2021-12-17 17:00:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 1104. [2021-12-17 17:00:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1075 states have (on average 1.3711627906976744) internal successors, (1474), 1103 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:50,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1474 transitions. [2021-12-17 17:00:50,850 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1474 transitions. Word has length 114 [2021-12-17 17:00:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:50,850 INFO L470 AbstractCegarLoop]: Abstraction has 1104 states and 1474 transitions. [2021-12-17 17:00:50,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:50,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1474 transitions. [2021-12-17 17:00:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:50,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:50,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:50,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-17 17:00:50,852 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:50,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash -731468516, now seen corresponding path program 1 times [2021-12-17 17:00:50,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:50,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109686028] [2021-12-17 17:00:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:50,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:51,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:51,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109686028] [2021-12-17 17:00:51,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109686028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:51,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:51,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:00:51,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601052098] [2021-12-17 17:00:51,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:51,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:00:51,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:51,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:00:51,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:00:51,013 INFO L87 Difference]: Start difference. First operand 1104 states and 1474 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:54,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:54,245 INFO L93 Difference]: Finished difference Result 2404 states and 3288 transitions. [2021-12-17 17:00:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:00:54,246 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:54,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:54,248 INFO L225 Difference]: With dead ends: 2404 [2021-12-17 17:00:54,248 INFO L226 Difference]: Without dead ends: 2306 [2021-12-17 17:00:54,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:00:54,249 INFO L933 BasicCegarLoop]: 1171 mSDtfsCounter, 11322 mSDsluCounter, 4075 mSDsCounter, 0 mSdLazyCounter, 4244 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11322 SdHoareTripleChecker+Valid, 5246 SdHoareTripleChecker+Invalid, 5460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 4244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:54,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11322 Valid, 5246 Invalid, 5460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1216 Valid, 4244 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:00:54,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2021-12-17 17:00:54,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1108. [2021-12-17 17:00:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3697868396663577) internal successors, (1478), 1107 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1478 transitions. [2021-12-17 17:00:54,382 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1478 transitions. Word has length 114 [2021-12-17 17:00:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:54,382 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1478 transitions. [2021-12-17 17:00:54,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1478 transitions. [2021-12-17 17:00:54,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:54,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:54,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:54,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-17 17:00:54,384 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:54,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:54,385 INFO L85 PathProgramCache]: Analyzing trace with hash -95181654, now seen corresponding path program 1 times [2021-12-17 17:00:54,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:54,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330029849] [2021-12-17 17:00:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:54,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:54,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:54,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330029849] [2021-12-17 17:00:54,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330029849] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:54,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:54,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:54,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339861726] [2021-12-17 17:00:54,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:54,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:54,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:54,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:54,490 INFO L87 Difference]: Start difference. First operand 1108 states and 1478 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:56,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:56,655 INFO L93 Difference]: Finished difference Result 1880 states and 2538 transitions. [2021-12-17 17:00:56,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:56,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:56,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:56,658 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:00:56,658 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:56,659 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 [2021-12-17 17:00:56,659 INFO L933 BasicCegarLoop]: 1062 mSDtfsCounter, 6427 mSDsluCounter, 4380 mSDsCounter, 0 mSdLazyCounter, 4304 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6427 SdHoareTripleChecker+Valid, 5442 SdHoareTripleChecker+Invalid, 4483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 4304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:56,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6427 Valid, 5442 Invalid, 4483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 4304 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:00:56,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:56,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1108. [2021-12-17 17:00:56,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3688600556070436) internal successors, (1477), 1107 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:56,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1477 transitions. [2021-12-17 17:00:56,795 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1477 transitions. Word has length 114 [2021-12-17 17:00:56,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:56,795 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1477 transitions. [2021-12-17 17:00:56,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:56,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1477 transitions. [2021-12-17 17:00:56,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:56,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:56,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:56,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-17 17:00:56,798 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:56,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1099570691, now seen corresponding path program 1 times [2021-12-17 17:00:56,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:56,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027822862] [2021-12-17 17:00:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:56,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:56,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:56,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027822862] [2021-12-17 17:00:56,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027822862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:56,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:56,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:56,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321557679] [2021-12-17 17:00:56,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:56,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:56,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:56,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:56,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:56,900 INFO L87 Difference]: Start difference. First operand 1108 states and 1477 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:00:59,033 INFO L93 Difference]: Finished difference Result 1884 states and 2540 transitions. [2021-12-17 17:00:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:00:59,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:00:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:00:59,035 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:00:59,036 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:00:59,036 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 [2021-12-17 17:00:59,037 INFO L933 BasicCegarLoop]: 1062 mSDtfsCounter, 6426 mSDsluCounter, 4378 mSDsCounter, 0 mSdLazyCounter, 4298 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6426 SdHoareTripleChecker+Valid, 5440 SdHoareTripleChecker+Invalid, 4477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 4298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:00:59,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6426 Valid, 5440 Invalid, 4477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 4298 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:00:59,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:00:59,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1108. [2021-12-17 17:00:59,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3679332715477295) internal successors, (1476), 1107 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1476 transitions. [2021-12-17 17:00:59,176 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1476 transitions. Word has length 114 [2021-12-17 17:00:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:00:59,176 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1476 transitions. [2021-12-17 17:00:59,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:00:59,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1476 transitions. [2021-12-17 17:00:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:00:59,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:00:59,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:00:59,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-17 17:00:59,177 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:00:59,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:00:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1555279999, now seen corresponding path program 1 times [2021-12-17 17:00:59,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:00:59,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119511449] [2021-12-17 17:00:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:00:59,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:00:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:00:59,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:00:59,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:00:59,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119511449] [2021-12-17 17:00:59,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119511449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:00:59,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:00:59,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:00:59,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111131604] [2021-12-17 17:00:59,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:00:59,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:00:59,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:00:59,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:00:59,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:00:59,298 INFO L87 Difference]: Start difference. First operand 1108 states and 1476 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:01,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:01,594 INFO L93 Difference]: Finished difference Result 1880 states and 2536 transitions. [2021-12-17 17:01:01,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:01,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:01,597 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:01:01,597 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:01,598 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 [2021-12-17 17:01:01,598 INFO L933 BasicCegarLoop]: 1117 mSDtfsCounter, 6322 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 4471 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6322 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 4648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:01,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6322 Valid, 5660 Invalid, 4648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4471 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 17:01:01,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:01,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1108. [2021-12-17 17:01:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3670064874884151) internal successors, (1475), 1107 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:01,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1475 transitions. [2021-12-17 17:01:01,751 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1475 transitions. Word has length 114 [2021-12-17 17:01:01,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:01,751 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1475 transitions. [2021-12-17 17:01:01,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:01,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1475 transitions. [2021-12-17 17:01:01,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:01,753 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:01,753 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:01,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-17 17:01:01,753 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:01,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:01,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2103617902, now seen corresponding path program 1 times [2021-12-17 17:01:01,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:01,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849994351] [2021-12-17 17:01:01,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:01,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:01,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:01,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849994351] [2021-12-17 17:01:01,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849994351] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:01,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:01,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:01,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660459421] [2021-12-17 17:01:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:01,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:01,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:01,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:01,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:01,859 INFO L87 Difference]: Start difference. First operand 1108 states and 1475 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:03,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:03,809 INFO L93 Difference]: Finished difference Result 1884 states and 2538 transitions. [2021-12-17 17:01:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:03,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:03,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:03,811 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:01:03,811 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:03,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:03,812 INFO L933 BasicCegarLoop]: 1191 mSDtfsCounter, 6197 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 3891 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6197 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 4066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:03,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6197 Valid, 4904 Invalid, 4066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3891 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:01:03,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1108. [2021-12-17 17:01:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.366079703429101) internal successors, (1474), 1107 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:03,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1474 transitions. [2021-12-17 17:01:03,951 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1474 transitions. Word has length 114 [2021-12-17 17:01:03,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:03,951 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1474 transitions. [2021-12-17 17:01:03,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:03,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1474 transitions. [2021-12-17 17:01:03,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:03,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:03,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:03,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-17 17:01:03,954 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:03,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:03,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1354396539, now seen corresponding path program 1 times [2021-12-17 17:01:03,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:03,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298492515] [2021-12-17 17:01:03,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:03,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:04,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:04,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298492515] [2021-12-17 17:01:04,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298492515] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:04,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:04,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:01:04,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875750634] [2021-12-17 17:01:04,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:04,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:01:04,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:04,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:01:04,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:01:04,108 INFO L87 Difference]: Start difference. First operand 1108 states and 1474 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:07,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:07,531 INFO L93 Difference]: Finished difference Result 2396 states and 3276 transitions. [2021-12-17 17:01:07,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:01:07,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:07,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:07,533 INFO L225 Difference]: With dead ends: 2396 [2021-12-17 17:01:07,533 INFO L226 Difference]: Without dead ends: 2302 [2021-12-17 17:01:07,534 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 [2021-12-17 17:01:07,534 INFO L933 BasicCegarLoop]: 1160 mSDtfsCounter, 9400 mSDsluCounter, 4553 mSDsCounter, 0 mSdLazyCounter, 4673 mSolverCounterSat, 1031 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9400 SdHoareTripleChecker+Valid, 5713 SdHoareTripleChecker+Invalid, 5704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1031 IncrementalHoareTripleChecker+Valid, 4673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:07,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9400 Valid, 5713 Invalid, 5704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1031 Valid, 4673 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:01:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2021-12-17 17:01:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1112. [2021-12-17 17:01:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3647276084949216) internal successors, (1478), 1111 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1478 transitions. [2021-12-17 17:01:07,681 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1478 transitions. Word has length 114 [2021-12-17 17:01:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:07,681 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1478 transitions. [2021-12-17 17:01:07,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1478 transitions. [2021-12-17 17:01:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:07,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:07,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:07,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-17 17:01:07,683 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:07,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:07,683 INFO L85 PathProgramCache]: Analyzing trace with hash -369561292, now seen corresponding path program 1 times [2021-12-17 17:01:07,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:07,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651781559] [2021-12-17 17:01:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:07,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:07,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:07,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651781559] [2021-12-17 17:01:07,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651781559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:07,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:07,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:07,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063256955] [2021-12-17 17:01:07,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:07,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:07,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:07,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:07,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:07,786 INFO L87 Difference]: Start difference. First operand 1112 states and 1478 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:09,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:09,944 INFO L93 Difference]: Finished difference Result 1879 states and 2531 transitions. [2021-12-17 17:01:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:09,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:09,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:09,948 INFO L225 Difference]: With dead ends: 1879 [2021-12-17 17:01:09,948 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:09,949 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 [2021-12-17 17:01:09,949 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 6421 mSDsluCounter, 4365 mSDsCounter, 0 mSdLazyCounter, 4252 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6421 SdHoareTripleChecker+Valid, 5422 SdHoareTripleChecker+Invalid, 4431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 4252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:09,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6421 Valid, 5422 Invalid, 4431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 4252 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:01:09,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:10,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1112. [2021-12-17 17:01:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3638042474607572) internal successors, (1477), 1111 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:10,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1477 transitions. [2021-12-17 17:01:10,103 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1477 transitions. Word has length 114 [2021-12-17 17:01:10,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:10,103 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1477 transitions. [2021-12-17 17:01:10,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:10,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1477 transitions. [2021-12-17 17:01:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:10,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:10,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:10,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-17 17:01:10,105 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:10,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:10,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2138520516, now seen corresponding path program 1 times [2021-12-17 17:01:10,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:10,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455584668] [2021-12-17 17:01:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:10,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:10,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:10,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455584668] [2021-12-17 17:01:10,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455584668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:10,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:10,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:10,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127478208] [2021-12-17 17:01:10,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:10,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:10,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:10,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:10,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:10,219 INFO L87 Difference]: Start difference. First operand 1112 states and 1477 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:12,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:12,442 INFO L93 Difference]: Finished difference Result 1970 states and 2645 transitions. [2021-12-17 17:01:12,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:12,443 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:12,445 INFO L225 Difference]: With dead ends: 1970 [2021-12-17 17:01:12,445 INFO L226 Difference]: Without dead ends: 1850 [2021-12-17 17:01:12,446 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 [2021-12-17 17:01:12,446 INFO L933 BasicCegarLoop]: 1127 mSDtfsCounter, 6709 mSDsluCounter, 4701 mSDsCounter, 0 mSdLazyCounter, 4449 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6709 SdHoareTripleChecker+Valid, 5828 SdHoareTripleChecker+Invalid, 4548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 4449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:12,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6709 Valid, 5828 Invalid, 4548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 4449 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:01:12,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-12-17 17:01:12,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1112. [2021-12-17 17:01:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3628808864265929) internal successors, (1476), 1111 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:12,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1476 transitions. [2021-12-17 17:01:12,610 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1476 transitions. Word has length 114 [2021-12-17 17:01:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:12,610 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1476 transitions. [2021-12-17 17:01:12,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1476 transitions. [2021-12-17 17:01:12,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:12,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:12,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:12,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-17 17:01:12,612 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:12,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:12,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1747601552, now seen corresponding path program 1 times [2021-12-17 17:01:12,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:12,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739817061] [2021-12-17 17:01:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:12,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:12,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:12,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739817061] [2021-12-17 17:01:12,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739817061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:12,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:12,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:12,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301838353] [2021-12-17 17:01:12,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:12,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:12,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:12,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:12,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:12,715 INFO L87 Difference]: Start difference. First operand 1112 states and 1476 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:14,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:14,894 INFO L93 Difference]: Finished difference Result 1884 states and 2534 transitions. [2021-12-17 17:01:14,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:14,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:14,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:14,896 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:01:14,896 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:14,897 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 [2021-12-17 17:01:14,897 INFO L933 BasicCegarLoop]: 1083 mSDtfsCounter, 6375 mSDsluCounter, 4439 mSDsCounter, 0 mSdLazyCounter, 4305 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6375 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 4483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 4305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:14,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6375 Valid, 5522 Invalid, 4483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 4305 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:01:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1112. [2021-12-17 17:01:15,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3619575253924285) internal successors, (1475), 1111 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1475 transitions. [2021-12-17 17:01:15,045 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1475 transitions. Word has length 114 [2021-12-17 17:01:15,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:15,045 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1475 transitions. [2021-12-17 17:01:15,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1475 transitions. [2021-12-17 17:01:15,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:15,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:15,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:15,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-17 17:01:15,047 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:15,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash -187578806, now seen corresponding path program 1 times [2021-12-17 17:01:15,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:15,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740389297] [2021-12-17 17:01:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:15,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:15,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:15,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740389297] [2021-12-17 17:01:15,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740389297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:15,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:15,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:15,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229914148] [2021-12-17 17:01:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:15,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:15,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:15,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:15,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:15,153 INFO L87 Difference]: Start difference. First operand 1112 states and 1475 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:17,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:17,260 INFO L93 Difference]: Finished difference Result 2043 states and 2736 transitions. [2021-12-17 17:01:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:17,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:17,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:17,263 INFO L225 Difference]: With dead ends: 2043 [2021-12-17 17:01:17,263 INFO L226 Difference]: Without dead ends: 1878 [2021-12-17 17:01:17,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:17,264 INFO L933 BasicCegarLoop]: 1333 mSDtfsCounter, 4846 mSDsluCounter, 4553 mSDsCounter, 0 mSdLazyCounter, 4474 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 5886 SdHoareTripleChecker+Invalid, 4518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:17,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4846 Valid, 5886 Invalid, 4518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 4474 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:01:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2021-12-17 17:01:17,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1112. [2021-12-17 17:01:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3610341643582642) internal successors, (1474), 1111 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1474 transitions. [2021-12-17 17:01:17,416 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1474 transitions. Word has length 114 [2021-12-17 17:01:17,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:17,417 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1474 transitions. [2021-12-17 17:01:17,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:17,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1474 transitions. [2021-12-17 17:01:17,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:17,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:17,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:17,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-17 17:01:17,418 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:17,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:17,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1485736079, now seen corresponding path program 1 times [2021-12-17 17:01:17,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:17,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435422581] [2021-12-17 17:01:17,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:17,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:17,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:17,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435422581] [2021-12-17 17:01:17,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435422581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:17,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:17,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:17,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775917583] [2021-12-17 17:01:17,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:17,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:17,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:17,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:17,535 INFO L87 Difference]: Start difference. First operand 1112 states and 1474 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:19,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:19,843 INFO L93 Difference]: Finished difference Result 1880 states and 2528 transitions. [2021-12-17 17:01:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:19,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:19,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:19,845 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:01:19,845 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:19,845 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 [2021-12-17 17:01:19,847 INFO L933 BasicCegarLoop]: 1134 mSDtfsCounter, 6269 mSDsluCounter, 4593 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6269 SdHoareTripleChecker+Valid, 5727 SdHoareTripleChecker+Invalid, 4651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:19,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6269 Valid, 5727 Invalid, 4651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 4475 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 17:01:19,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:19,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1112. [2021-12-17 17:01:19,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3601108033240996) internal successors, (1473), 1111 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:19,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1473 transitions. [2021-12-17 17:01:19,998 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1473 transitions. Word has length 114 [2021-12-17 17:01:19,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:19,998 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1473 transitions. [2021-12-17 17:01:19,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:19,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1473 transitions. [2021-12-17 17:01:20,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:20,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:20,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:20,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-17 17:01:20,001 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:20,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:20,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2122503553, now seen corresponding path program 1 times [2021-12-17 17:01:20,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:20,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880009524] [2021-12-17 17:01:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:20,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:20,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:20,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880009524] [2021-12-17 17:01:20,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880009524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:20,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:20,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:20,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711254321] [2021-12-17 17:01:20,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:20,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:20,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:20,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:20,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:20,122 INFO L87 Difference]: Start difference. First operand 1112 states and 1473 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:22,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:22,128 INFO L93 Difference]: Finished difference Result 1884 states and 2531 transitions. [2021-12-17 17:01:22,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:22,128 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:22,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:22,131 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:01:22,131 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:22,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:22,132 INFO L933 BasicCegarLoop]: 1157 mSDtfsCounter, 6238 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 3727 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6238 SdHoareTripleChecker+Valid, 4766 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 3727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:22,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6238 Valid, 4766 Invalid, 3903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 3727 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:01:22,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:22,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1112. [2021-12-17 17:01:22,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3591874422899353) internal successors, (1472), 1111 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:22,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1472 transitions. [2021-12-17 17:01:22,357 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1472 transitions. Word has length 114 [2021-12-17 17:01:22,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:22,358 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1472 transitions. [2021-12-17 17:01:22,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:22,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1472 transitions. [2021-12-17 17:01:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:22,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:22,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:22,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-17 17:01:22,363 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:22,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1804361568, now seen corresponding path program 1 times [2021-12-17 17:01:22,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:22,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803299450] [2021-12-17 17:01:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:22,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:22,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:22,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803299450] [2021-12-17 17:01:22,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803299450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:22,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:22,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:22,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025991174] [2021-12-17 17:01:22,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:22,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:22,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:22,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:22,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:22,480 INFO L87 Difference]: Start difference. First operand 1112 states and 1472 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:24,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:24,735 INFO L93 Difference]: Finished difference Result 1884 states and 2529 transitions. [2021-12-17 17:01:24,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:24,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:24,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:24,738 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:01:24,738 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:24,738 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 [2021-12-17 17:01:24,739 INFO L933 BasicCegarLoop]: 1083 mSDtfsCounter, 6358 mSDsluCounter, 4439 mSDsCounter, 0 mSdLazyCounter, 4283 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6358 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 4461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 4283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:24,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6358 Valid, 5522 Invalid, 4461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 4283 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:01:24,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:24,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1112. [2021-12-17 17:01:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.358264081255771) internal successors, (1471), 1111 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1471 transitions. [2021-12-17 17:01:24,911 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1471 transitions. Word has length 114 [2021-12-17 17:01:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:24,911 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1471 transitions. [2021-12-17 17:01:24,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:24,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1471 transitions. [2021-12-17 17:01:24,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 17:01:24,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:24,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:24,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-17 17:01:24,912 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:24,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:24,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2081760500, now seen corresponding path program 1 times [2021-12-17 17:01:24,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:24,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976735575] [2021-12-17 17:01:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:24,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:25,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:25,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976735575] [2021-12-17 17:01:25,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976735575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:25,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:25,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:25,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399632082] [2021-12-17 17:01:25,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:25,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:25,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:25,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:25,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:25,009 INFO L87 Difference]: Start difference. First operand 1112 states and 1471 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:27,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:27,070 INFO L93 Difference]: Finished difference Result 1970 states and 2638 transitions. [2021-12-17 17:01:27,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:27,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-17 17:01:27,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:27,072 INFO L225 Difference]: With dead ends: 1970 [2021-12-17 17:01:27,072 INFO L226 Difference]: Without dead ends: 1850 [2021-12-17 17:01:27,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:27,073 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 3295 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 4106 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 4163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:27,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3295 Valid, 5356 Invalid, 4163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4106 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:01:27,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-12-17 17:01:27,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1112. [2021-12-17 17:01:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3573407202216066) internal successors, (1470), 1111 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1470 transitions. [2021-12-17 17:01:27,230 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1470 transitions. Word has length 114 [2021-12-17 17:01:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:27,230 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1470 transitions. [2021-12-17 17:01:27,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:27,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1470 transitions. [2021-12-17 17:01:27,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 17:01:27,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:27,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:27,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-17 17:01:27,231 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:27,232 INFO L85 PathProgramCache]: Analyzing trace with hash 352654659, now seen corresponding path program 1 times [2021-12-17 17:01:27,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:27,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889097313] [2021-12-17 17:01:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:27,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:27,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:27,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:27,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889097313] [2021-12-17 17:01:27,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889097313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:27,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:27,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:27,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307403779] [2021-12-17 17:01:27,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:27,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:27,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:27,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:27,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:27,323 INFO L87 Difference]: Start difference. First operand 1112 states and 1470 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:29,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:29,289 INFO L93 Difference]: Finished difference Result 1884 states and 2527 transitions. [2021-12-17 17:01:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:29,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-17 17:01:29,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:29,292 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:01:29,292 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:29,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:29,293 INFO L933 BasicCegarLoop]: 1187 mSDtfsCounter, 6664 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 3824 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6664 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 4036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 3824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:29,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6664 Valid, 4881 Invalid, 4036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 3824 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:01:29,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:29,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1108. [2021-12-17 17:01:29,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3577386468952735) internal successors, (1465), 1107 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1465 transitions. [2021-12-17 17:01:29,453 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1465 transitions. Word has length 115 [2021-12-17 17:01:29,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:29,454 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1465 transitions. [2021-12-17 17:01:29,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1465 transitions. [2021-12-17 17:01:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 17:01:29,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:29,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:29,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-17 17:01:29,455 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:29,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:29,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1189569746, now seen corresponding path program 1 times [2021-12-17 17:01:29,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:29,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588612764] [2021-12-17 17:01:29,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:29,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:29,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:29,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588612764] [2021-12-17 17:01:29,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588612764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:29,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:29,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:29,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808958864] [2021-12-17 17:01:29,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:29,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:29,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:29,537 INFO L87 Difference]: Start difference. First operand 1108 states and 1465 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:31,828 INFO L93 Difference]: Finished difference Result 1880 states and 2522 transitions. [2021-12-17 17:01:31,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:31,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-17 17:01:31,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:31,831 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:01:31,831 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:31,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:31,832 INFO L933 BasicCegarLoop]: 1193 mSDtfsCounter, 6611 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 3844 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6611 SdHoareTripleChecker+Valid, 4915 SdHoareTripleChecker+Invalid, 4056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 3844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:31,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6611 Valid, 4915 Invalid, 4056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 3844 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:01:31,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:32,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1104. [2021-12-17 17:01:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1075 states have (on average 1.3581395348837209) internal successors, (1460), 1103 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1460 transitions. [2021-12-17 17:01:32,014 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1460 transitions. Word has length 115 [2021-12-17 17:01:32,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:32,014 INFO L470 AbstractCegarLoop]: Abstraction has 1104 states and 1460 transitions. [2021-12-17 17:01:32,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1460 transitions. [2021-12-17 17:01:32,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 17:01:32,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:32,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:32,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-12-17 17:01:32,016 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:32,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:32,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1071105860, now seen corresponding path program 1 times [2021-12-17 17:01:32,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:32,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618342219] [2021-12-17 17:01:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:32,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:32,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:32,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618342219] [2021-12-17 17:01:32,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618342219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:32,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:32,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:32,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019632279] [2021-12-17 17:01:32,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:32,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:32,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:32,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:32,104 INFO L87 Difference]: Start difference. First operand 1104 states and 1460 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:34,150 INFO L93 Difference]: Finished difference Result 1884 states and 2524 transitions. [2021-12-17 17:01:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:34,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-17 17:01:34,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:34,153 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:01:34,154 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:34,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:34,155 INFO L933 BasicCegarLoop]: 1201 mSDtfsCounter, 4981 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 3858 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 4945 SdHoareTripleChecker+Invalid, 4018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 3858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:34,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4981 Valid, 4945 Invalid, 4018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 3858 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:01:34,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:34,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1100. [2021-12-17 17:01:34,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1071 states have (on average 1.3585434173669468) internal successors, (1455), 1099 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:34,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1455 transitions. [2021-12-17 17:01:34,396 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1455 transitions. Word has length 115 [2021-12-17 17:01:34,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:34,396 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1455 transitions. [2021-12-17 17:01:34,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:34,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1455 transitions. [2021-12-17 17:01:34,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 17:01:34,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:34,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:34,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-12-17 17:01:34,398 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:34,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:34,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2072032164, now seen corresponding path program 1 times [2021-12-17 17:01:34,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:34,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650034647] [2021-12-17 17:01:34,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:34,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:34,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:34,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650034647] [2021-12-17 17:01:34,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650034647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:34,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:34,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:34,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369772151] [2021-12-17 17:01:34,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:34,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:34,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:34,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:34,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:34,573 INFO L87 Difference]: Start difference. First operand 1100 states and 1455 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:36,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:36,645 INFO L93 Difference]: Finished difference Result 1880 states and 2520 transitions. [2021-12-17 17:01:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:36,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-17 17:01:36,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:36,648 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:01:36,648 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:36,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:36,649 INFO L933 BasicCegarLoop]: 1206 mSDtfsCounter, 4124 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4124 SdHoareTripleChecker+Valid, 4957 SdHoareTripleChecker+Invalid, 4023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:36,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4124 Valid, 4957 Invalid, 4023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 3882 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:01:36,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1096. [2021-12-17 17:01:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1067 states have (on average 1.358950328022493) internal successors, (1450), 1095 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1450 transitions. [2021-12-17 17:01:36,806 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1450 transitions. Word has length 115 [2021-12-17 17:01:36,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:36,806 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1450 transitions. [2021-12-17 17:01:36,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1450 transitions. [2021-12-17 17:01:36,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 17:01:36,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:36,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:36,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-12-17 17:01:36,808 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:36,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:36,808 INFO L85 PathProgramCache]: Analyzing trace with hash 662023771, now seen corresponding path program 1 times [2021-12-17 17:01:36,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:36,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218716399] [2021-12-17 17:01:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:36,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:36,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:36,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218716399] [2021-12-17 17:01:36,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218716399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:36,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:36,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:36,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67304720] [2021-12-17 17:01:36,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:36,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:36,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:36,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:36,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:36,946 INFO L87 Difference]: Start difference. First operand 1096 states and 1450 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:39,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:39,240 INFO L93 Difference]: Finished difference Result 1878 states and 2517 transitions. [2021-12-17 17:01:39,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:39,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-17 17:01:39,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:39,242 INFO L225 Difference]: With dead ends: 1878 [2021-12-17 17:01:39,242 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:39,242 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 [2021-12-17 17:01:39,243 INFO L933 BasicCegarLoop]: 1127 mSDtfsCounter, 6291 mSDsluCounter, 4590 mSDsCounter, 0 mSdLazyCounter, 4404 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6291 SdHoareTripleChecker+Valid, 5717 SdHoareTripleChecker+Invalid, 4581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:39,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6291 Valid, 5717 Invalid, 4581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4404 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:01:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:39,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1096. [2021-12-17 17:01:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1067 states have (on average 1.3580131208997188) internal successors, (1449), 1095 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:39,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1449 transitions. [2021-12-17 17:01:39,400 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1449 transitions. Word has length 115 [2021-12-17 17:01:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:39,400 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1449 transitions. [2021-12-17 17:01:39,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1449 transitions. [2021-12-17 17:01:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 17:01:39,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:39,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:39,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-12-17 17:01:39,401 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:39,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:39,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1161160130, now seen corresponding path program 1 times [2021-12-17 17:01:39,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:39,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631104456] [2021-12-17 17:01:39,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:39,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:39,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:39,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631104456] [2021-12-17 17:01:39,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631104456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:39,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:39,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:39,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846368037] [2021-12-17 17:01:39,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:39,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:39,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:39,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:39,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:39,516 INFO L87 Difference]: Start difference. First operand 1096 states and 1449 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:41,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:41,626 INFO L93 Difference]: Finished difference Result 1879 states and 2517 transitions. [2021-12-17 17:01:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:41,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-17 17:01:41,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:41,629 INFO L225 Difference]: With dead ends: 1879 [2021-12-17 17:01:41,631 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:41,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:41,632 INFO L933 BasicCegarLoop]: 1212 mSDtfsCounter, 4928 mSDsluCounter, 3781 mSDsCounter, 0 mSdLazyCounter, 3893 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4928 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 4053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 3893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:41,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4928 Valid, 4993 Invalid, 4053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 3893 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:01:41,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:41,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1092. [2021-12-17 17:01:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1063 states have (on average 1.3584195672624648) internal successors, (1444), 1091 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:41,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1444 transitions. [2021-12-17 17:01:41,791 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1444 transitions. Word has length 115 [2021-12-17 17:01:41,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:41,791 INFO L470 AbstractCegarLoop]: Abstraction has 1092 states and 1444 transitions. [2021-12-17 17:01:41,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1444 transitions. [2021-12-17 17:01:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 17:01:41,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:41,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:41,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-12-17 17:01:41,792 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash -304266844, now seen corresponding path program 1 times [2021-12-17 17:01:41,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:41,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541385266] [2021-12-17 17:01:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:41,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:41,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:41,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:41,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541385266] [2021-12-17 17:01:41,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541385266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:41,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:41,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:41,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501023815] [2021-12-17 17:01:41,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:41,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:41,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:41,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:41,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:41,873 INFO L87 Difference]: Start difference. First operand 1092 states and 1444 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:43,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:43,877 INFO L93 Difference]: Finished difference Result 1884 states and 2520 transitions. [2021-12-17 17:01:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:43,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-17 17:01:43,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:43,880 INFO L225 Difference]: With dead ends: 1884 [2021-12-17 17:01:43,880 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:43,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:43,881 INFO L933 BasicCegarLoop]: 1220 mSDtfsCounter, 5619 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 3906 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5619 SdHoareTripleChecker+Valid, 5021 SdHoareTripleChecker+Invalid, 4100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 3906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:43,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5619 Valid, 5021 Invalid, 4100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 3906 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:01:43,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:44,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1088. [2021-12-17 17:01:44,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3588290840415487) internal successors, (1439), 1087 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:44,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1439 transitions. [2021-12-17 17:01:44,063 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1439 transitions. Word has length 115 [2021-12-17 17:01:44,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:44,063 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1439 transitions. [2021-12-17 17:01:44,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:44,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1439 transitions. [2021-12-17 17:01:44,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 17:01:44,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:44,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:44,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-12-17 17:01:44,065 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash 533539957, now seen corresponding path program 1 times [2021-12-17 17:01:44,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:44,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665644287] [2021-12-17 17:01:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:44,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:44,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:44,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665644287] [2021-12-17 17:01:44,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665644287] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:44,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:44,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:44,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610832437] [2021-12-17 17:01:44,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:44,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:44,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:44,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:44,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:44,152 INFO L87 Difference]: Start difference. First operand 1088 states and 1439 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:46,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:46,187 INFO L93 Difference]: Finished difference Result 1880 states and 2516 transitions. [2021-12-17 17:01:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-17 17:01:46,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:46,193 INFO L225 Difference]: With dead ends: 1880 [2021-12-17 17:01:46,193 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:46,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:46,194 INFO L933 BasicCegarLoop]: 1272 mSDtfsCounter, 5406 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 4119 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5406 SdHoareTripleChecker+Valid, 5231 SdHoareTripleChecker+Invalid, 4309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:46,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5406 Valid, 5231 Invalid, 4309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4119 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:01:46,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:46,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1084. [2021-12-17 17:01:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3592417061611375) internal successors, (1434), 1083 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:46,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1434 transitions. [2021-12-17 17:01:46,353 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1434 transitions. Word has length 115 [2021-12-17 17:01:46,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:46,353 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1434 transitions. [2021-12-17 17:01:46,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1434 transitions. [2021-12-17 17:01:46,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:01:46,354 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:46,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:46,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-12-17 17:01:46,354 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:46,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:46,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1530428595, now seen corresponding path program 1 times [2021-12-17 17:01:46,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:46,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208985419] [2021-12-17 17:01:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:46,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:46,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:46,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:46,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208985419] [2021-12-17 17:01:46,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208985419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:46,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:46,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:46,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17828859] [2021-12-17 17:01:46,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:46,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:46,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:46,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:46,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:46,447 INFO L87 Difference]: Start difference. First operand 1084 states and 1434 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:48,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:48,587 INFO L93 Difference]: Finished difference Result 1821 states and 2418 transitions. [2021-12-17 17:01:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:48,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:01:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:48,589 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:01:48,589 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:01:48,590 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 [2021-12-17 17:01:48,590 INFO L933 BasicCegarLoop]: 1007 mSDtfsCounter, 6326 mSDsluCounter, 3989 mSDsCounter, 0 mSdLazyCounter, 4062 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6326 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 4405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 4062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:48,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6326 Valid, 4996 Invalid, 4405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 4062 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:01:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:01:48,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1084. [2021-12-17 17:01:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3582938388625592) internal successors, (1433), 1083 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:48,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1433 transitions. [2021-12-17 17:01:48,769 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1433 transitions. Word has length 116 [2021-12-17 17:01:48,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:48,769 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1433 transitions. [2021-12-17 17:01:48,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:48,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1433 transitions. [2021-12-17 17:01:48,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:01:48,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:48,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:48,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-12-17 17:01:48,771 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:48,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:48,771 INFO L85 PathProgramCache]: Analyzing trace with hash -852341599, now seen corresponding path program 1 times [2021-12-17 17:01:48,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:48,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366969610] [2021-12-17 17:01:48,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:48,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:48,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:48,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366969610] [2021-12-17 17:01:48,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366969610] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:48,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:48,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:48,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529916665] [2021-12-17 17:01:48,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:48,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:48,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:48,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:48,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:48,857 INFO L87 Difference]: Start difference. First operand 1084 states and 1433 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:50,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:50,850 INFO L93 Difference]: Finished difference Result 1889 states and 2521 transitions. [2021-12-17 17:01:50,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:50,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:01:50,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:50,852 INFO L225 Difference]: With dead ends: 1889 [2021-12-17 17:01:50,852 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:01:50,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:50,853 INFO L933 BasicCegarLoop]: 1225 mSDtfsCounter, 4879 mSDsluCounter, 3798 mSDsCounter, 0 mSdLazyCounter, 3910 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4879 SdHoareTripleChecker+Valid, 5023 SdHoareTripleChecker+Invalid, 4068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 3910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:50,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4879 Valid, 5023 Invalid, 4068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 3910 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:01:50,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:01:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1084. [2021-12-17 17:01:51,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.357345971563981) internal successors, (1432), 1083 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1432 transitions. [2021-12-17 17:01:51,022 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1432 transitions. Word has length 116 [2021-12-17 17:01:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:51,022 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1432 transitions. [2021-12-17 17:01:51,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:51,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1432 transitions. [2021-12-17 17:01:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:01:51,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:51,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:51,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-12-17 17:01:51,024 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:51,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2039613955, now seen corresponding path program 1 times [2021-12-17 17:01:51,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:51,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994178785] [2021-12-17 17:01:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:51,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:51,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:51,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994178785] [2021-12-17 17:01:51,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994178785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:51,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:51,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:51,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481886282] [2021-12-17 17:01:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:51,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:51,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:51,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:51,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:51,139 INFO L87 Difference]: Start difference. First operand 1084 states and 1432 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:53,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:53,121 INFO L93 Difference]: Finished difference Result 1818 states and 2413 transitions. [2021-12-17 17:01:53,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:53,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:01:53,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:53,127 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:01:53,127 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:01:53,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:53,128 INFO L933 BasicCegarLoop]: 1071 mSDtfsCounter, 6194 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 3620 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6194 SdHoareTripleChecker+Valid, 4398 SdHoareTripleChecker+Invalid, 3960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 3620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:53,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6194 Valid, 4398 Invalid, 3960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 3620 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:01:53,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:01:53,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1084. [2021-12-17 17:01:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3563981042654027) internal successors, (1431), 1083 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1431 transitions. [2021-12-17 17:01:53,313 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1431 transitions. Word has length 116 [2021-12-17 17:01:53,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:53,314 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1431 transitions. [2021-12-17 17:01:53,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1431 transitions. [2021-12-17 17:01:53,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:01:53,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:53,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:53,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-12-17 17:01:53,315 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:53,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:53,315 INFO L85 PathProgramCache]: Analyzing trace with hash 775292020, now seen corresponding path program 1 times [2021-12-17 17:01:53,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:53,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866588888] [2021-12-17 17:01:53,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:53,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:53,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:53,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866588888] [2021-12-17 17:01:53,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866588888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:53,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:53,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:53,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472109231] [2021-12-17 17:01:53,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:53,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:53,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:53,409 INFO L87 Difference]: Start difference. First operand 1084 states and 1431 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:55,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:55,384 INFO L93 Difference]: Finished difference Result 1821 states and 2415 transitions. [2021-12-17 17:01:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:55,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:01:55,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:55,387 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:01:55,387 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:01:55,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:01:55,387 INFO L933 BasicCegarLoop]: 1094 mSDtfsCounter, 6170 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 3592 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6170 SdHoareTripleChecker+Valid, 4398 SdHoareTripleChecker+Invalid, 3932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 3592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:55,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6170 Valid, 4398 Invalid, 3932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 3592 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:01:55,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:01:55,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1084. [2021-12-17 17:01:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3554502369668247) internal successors, (1430), 1083 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:55,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1430 transitions. [2021-12-17 17:01:55,557 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1430 transitions. Word has length 116 [2021-12-17 17:01:55,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:55,557 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1430 transitions. [2021-12-17 17:01:55,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1430 transitions. [2021-12-17 17:01:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:01:55,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:55,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:55,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-12-17 17:01:55,558 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:55,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:55,558 INFO L85 PathProgramCache]: Analyzing trace with hash -696594836, now seen corresponding path program 1 times [2021-12-17 17:01:55,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:55,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673929300] [2021-12-17 17:01:55,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:55,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:55,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:55,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673929300] [2021-12-17 17:01:55,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673929300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:55,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:55,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:01:55,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939527679] [2021-12-17 17:01:55,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:55,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:01:55,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:55,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:01:55,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:01:55,657 INFO L87 Difference]: Start difference. First operand 1084 states and 1430 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:01:57,886 INFO L93 Difference]: Finished difference Result 1818 states and 2410 transitions. [2021-12-17 17:01:57,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:01:57,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:01:57,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:01:57,889 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:01:57,889 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:01:57,889 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 [2021-12-17 17:01:57,890 INFO L933 BasicCegarLoop]: 1074 mSDtfsCounter, 6182 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6182 SdHoareTripleChecker+Valid, 5269 SdHoareTripleChecker+Invalid, 4586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:01:57,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6182 Valid, 5269 Invalid, 4586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:01:57,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:01:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1084. [2021-12-17 17:01:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3545023696682466) internal successors, (1429), 1083 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1429 transitions. [2021-12-17 17:01:58,076 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1429 transitions. Word has length 116 [2021-12-17 17:01:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:01:58,076 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1429 transitions. [2021-12-17 17:01:58,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:01:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1429 transitions. [2021-12-17 17:01:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:01:58,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:01:58,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:01:58,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-12-17 17:01:58,078 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:01:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:01:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1960799597, now seen corresponding path program 1 times [2021-12-17 17:01:58,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:01:58,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751806056] [2021-12-17 17:01:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:01:58,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:01:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:01:58,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:01:58,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:01:58,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751806056] [2021-12-17 17:01:58,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751806056] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:01:58,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:01:58,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:01:58,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192964800] [2021-12-17 17:01:58,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:01:58,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:01:58,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:01:58,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:01:58,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:01:58,214 INFO L87 Difference]: Start difference. First operand 1084 states and 1429 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:01,794 INFO L93 Difference]: Finished difference Result 2242 states and 3015 transitions. [2021-12-17 17:02:01,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:01,794 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:01,796 INFO L225 Difference]: With dead ends: 2242 [2021-12-17 17:02:01,796 INFO L226 Difference]: Without dead ends: 2151 [2021-12-17 17:02:01,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:02:01,797 INFO L933 BasicCegarLoop]: 1138 mSDtfsCounter, 8050 mSDsluCounter, 4872 mSDsCounter, 0 mSdLazyCounter, 5068 mSolverCounterSat, 1277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8050 SdHoareTripleChecker+Valid, 6010 SdHoareTripleChecker+Invalid, 6345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1277 IncrementalHoareTripleChecker+Valid, 5068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:01,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8050 Valid, 6010 Invalid, 6345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1277 Valid, 5068 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:02:01,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2021-12-17 17:02:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1088. [2021-12-17 17:02:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3531633616619452) internal successors, (1433), 1087 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:01,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1433 transitions. [2021-12-17 17:02:01,980 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1433 transitions. Word has length 116 [2021-12-17 17:02:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:01,980 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1433 transitions. [2021-12-17 17:02:01,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1433 transitions. [2021-12-17 17:02:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:01,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:01,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:01,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-12-17 17:02:01,982 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:01,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash -47900760, now seen corresponding path program 1 times [2021-12-17 17:02:01,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:01,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446137761] [2021-12-17 17:02:01,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:01,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:02,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:02,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446137761] [2021-12-17 17:02:02,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446137761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:02,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:02,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:02,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710315645] [2021-12-17 17:02:02,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:02,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:02,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:02,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:02,119 INFO L87 Difference]: Start difference. First operand 1088 states and 1433 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:05,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:05,536 INFO L93 Difference]: Finished difference Result 2236 states and 3008 transitions. [2021-12-17 17:02:05,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:05,536 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:05,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:05,538 INFO L225 Difference]: With dead ends: 2236 [2021-12-17 17:02:05,538 INFO L226 Difference]: Without dead ends: 2148 [2021-12-17 17:02:05,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:02:05,539 INFO L933 BasicCegarLoop]: 1129 mSDtfsCounter, 8103 mSDsluCounter, 3766 mSDsCounter, 0 mSdLazyCounter, 4081 mSolverCounterSat, 1282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8103 SdHoareTripleChecker+Valid, 4895 SdHoareTripleChecker+Invalid, 5363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1282 IncrementalHoareTripleChecker+Valid, 4081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:05,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8103 Valid, 4895 Invalid, 5363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1282 Valid, 4081 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:02:05,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-17 17:02:05,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1092. [2021-12-17 17:02:05,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1063 states have (on average 1.3518344308560677) internal successors, (1437), 1091 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:05,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1437 transitions. [2021-12-17 17:02:05,741 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1437 transitions. Word has length 116 [2021-12-17 17:02:05,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:05,742 INFO L470 AbstractCegarLoop]: Abstraction has 1092 states and 1437 transitions. [2021-12-17 17:02:05,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:05,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1437 transitions. [2021-12-17 17:02:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:05,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:05,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:05,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-12-17 17:02:05,743 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:05,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:05,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1460670815, now seen corresponding path program 1 times [2021-12-17 17:02:05,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:05,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710963345] [2021-12-17 17:02:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:05,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:05,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:05,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710963345] [2021-12-17 17:02:05,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710963345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:05,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:05,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:05,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924791916] [2021-12-17 17:02:05,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:05,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:05,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:05,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:05,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:05,887 INFO L87 Difference]: Start difference. First operand 1092 states and 1437 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:09,161 INFO L93 Difference]: Finished difference Result 2236 states and 3007 transitions. [2021-12-17 17:02:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:09,162 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:09,164 INFO L225 Difference]: With dead ends: 2236 [2021-12-17 17:02:09,164 INFO L226 Difference]: Without dead ends: 2148 [2021-12-17 17:02:09,165 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 [2021-12-17 17:02:09,165 INFO L933 BasicCegarLoop]: 1079 mSDtfsCounter, 8895 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 1309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8895 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 5169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:09,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8895 Valid, 4669 Invalid, 5169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1309 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:02:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-17 17:02:09,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1096. [2021-12-17 17:02:09,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1067 states have (on average 1.3505154639175259) internal successors, (1441), 1095 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1441 transitions. [2021-12-17 17:02:09,372 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1441 transitions. Word has length 116 [2021-12-17 17:02:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:09,372 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1441 transitions. [2021-12-17 17:02:09,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1441 transitions. [2021-12-17 17:02:09,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:09,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:09,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:09,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-12-17 17:02:09,373 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:09,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:09,374 INFO L85 PathProgramCache]: Analyzing trace with hash 811976739, now seen corresponding path program 1 times [2021-12-17 17:02:09,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:09,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311530427] [2021-12-17 17:02:09,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:09,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:09,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:09,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:09,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311530427] [2021-12-17 17:02:09,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311530427] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:09,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:09,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:09,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589883378] [2021-12-17 17:02:09,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:09,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:09,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:09,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:09,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:09,462 INFO L87 Difference]: Start difference. First operand 1096 states and 1441 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:11,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:11,554 INFO L93 Difference]: Finished difference Result 1818 states and 2406 transitions. [2021-12-17 17:02:11,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:11,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:11,556 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:02:11,556 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:11,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:02:11,557 INFO L933 BasicCegarLoop]: 1069 mSDtfsCounter, 4875 mSDsluCounter, 3750 mSDsCounter, 0 mSdLazyCounter, 3891 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4875 SdHoareTripleChecker+Valid, 4819 SdHoareTripleChecker+Invalid, 4164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 3891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:11,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4875 Valid, 4819 Invalid, 4164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 3891 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:02:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:11,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1096. [2021-12-17 17:02:11,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1067 states have (on average 1.3495782567947516) internal successors, (1440), 1095 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:11,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1440 transitions. [2021-12-17 17:02:11,744 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1440 transitions. Word has length 116 [2021-12-17 17:02:11,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:11,744 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1440 transitions. [2021-12-17 17:02:11,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:11,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1440 transitions. [2021-12-17 17:02:11,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:11,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:11,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:11,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-12-17 17:02:11,745 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:11,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash -452010555, now seen corresponding path program 1 times [2021-12-17 17:02:11,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:11,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524700996] [2021-12-17 17:02:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:11,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:11,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:11,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:11,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524700996] [2021-12-17 17:02:11,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524700996] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:11,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:11,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:11,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780757428] [2021-12-17 17:02:11,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:11,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:11,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:11,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:11,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:11,886 INFO L87 Difference]: Start difference. First operand 1096 states and 1440 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:15,282 INFO L93 Difference]: Finished difference Result 2242 states and 3011 transitions. [2021-12-17 17:02:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:15,285 INFO L225 Difference]: With dead ends: 2242 [2021-12-17 17:02:15,285 INFO L226 Difference]: Without dead ends: 2151 [2021-12-17 17:02:15,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:02:15,286 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 9635 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 4049 mSolverCounterSat, 1535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9635 SdHoareTripleChecker+Valid, 4900 SdHoareTripleChecker+Invalid, 5584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1535 IncrementalHoareTripleChecker+Valid, 4049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:15,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9635 Valid, 4900 Invalid, 5584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1535 Valid, 4049 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:02:15,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2021-12-17 17:02:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1100. [2021-12-17 17:02:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1071 states have (on average 1.3482726423902895) internal successors, (1444), 1099 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1444 transitions. [2021-12-17 17:02:15,491 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1444 transitions. Word has length 116 [2021-12-17 17:02:15,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:15,491 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1444 transitions. [2021-12-17 17:02:15,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1444 transitions. [2021-12-17 17:02:15,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:15,493 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:15,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:15,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-12-17 17:02:15,493 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:15,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:15,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1332432067, now seen corresponding path program 1 times [2021-12-17 17:02:15,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:15,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79317536] [2021-12-17 17:02:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:15,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:15,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:15,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:15,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79317536] [2021-12-17 17:02:15,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79317536] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:15,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:15,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:15,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303391294] [2021-12-17 17:02:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:15,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:15,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:15,665 INFO L87 Difference]: Start difference. First operand 1100 states and 1444 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:19,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:19,263 INFO L93 Difference]: Finished difference Result 2236 states and 3004 transitions. [2021-12-17 17:02:19,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:19,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:19,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:19,265 INFO L225 Difference]: With dead ends: 2236 [2021-12-17 17:02:19,266 INFO L226 Difference]: Without dead ends: 2148 [2021-12-17 17:02:19,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:02:19,267 INFO L933 BasicCegarLoop]: 1074 mSDtfsCounter, 10564 mSDsluCounter, 4608 mSDsCounter, 0 mSdLazyCounter, 4771 mSolverCounterSat, 1564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10564 SdHoareTripleChecker+Valid, 5682 SdHoareTripleChecker+Invalid, 6335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1564 IncrementalHoareTripleChecker+Valid, 4771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:19,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10564 Valid, 5682 Invalid, 6335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1564 Valid, 4771 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:02:19,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-17 17:02:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1104. [2021-12-17 17:02:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1075 states have (on average 1.3469767441860465) internal successors, (1448), 1103 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1448 transitions. [2021-12-17 17:02:19,476 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1448 transitions. Word has length 116 [2021-12-17 17:02:19,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:19,476 INFO L470 AbstractCegarLoop]: Abstraction has 1104 states and 1448 transitions. [2021-12-17 17:02:19,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:19,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1448 transitions. [2021-12-17 17:02:19,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:19,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:19,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:19,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-12-17 17:02:19,477 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:19,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2118852475, now seen corresponding path program 1 times [2021-12-17 17:02:19,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:19,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965735013] [2021-12-17 17:02:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:19,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:19,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:19,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965735013] [2021-12-17 17:02:19,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965735013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:19,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:19,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:19,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256092222] [2021-12-17 17:02:19,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:19,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:19,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:19,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:19,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:19,569 INFO L87 Difference]: Start difference. First operand 1104 states and 1448 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:21,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:21,864 INFO L93 Difference]: Finished difference Result 1911 states and 2536 transitions. [2021-12-17 17:02:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:21,864 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:21,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:21,866 INFO L225 Difference]: With dead ends: 1911 [2021-12-17 17:02:21,866 INFO L226 Difference]: Without dead ends: 1818 [2021-12-17 17:02:21,866 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 [2021-12-17 17:02:21,867 INFO L933 BasicCegarLoop]: 1156 mSDtfsCounter, 6164 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 4411 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6164 SdHoareTripleChecker+Valid, 5818 SdHoareTripleChecker+Invalid, 4588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:21,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6164 Valid, 5818 Invalid, 4588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4411 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:02:21,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2021-12-17 17:02:22,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1104. [2021-12-17 17:02:22,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1075 states have (on average 1.346046511627907) internal successors, (1447), 1103 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:22,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1447 transitions. [2021-12-17 17:02:22,065 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1447 transitions. Word has length 116 [2021-12-17 17:02:22,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:22,065 INFO L470 AbstractCegarLoop]: Abstraction has 1104 states and 1447 transitions. [2021-12-17 17:02:22,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1447 transitions. [2021-12-17 17:02:22,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:22,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:22,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:22,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-12-17 17:02:22,067 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:22,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:22,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1305543109, now seen corresponding path program 1 times [2021-12-17 17:02:22,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:22,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9007977] [2021-12-17 17:02:22,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:22,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:22,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:22,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9007977] [2021-12-17 17:02:22,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9007977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:22,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:22,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:22,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403235773] [2021-12-17 17:02:22,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:22,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:22,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:22,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:22,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:22,180 INFO L87 Difference]: Start difference. First operand 1104 states and 1447 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:24,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:24,448 INFO L93 Difference]: Finished difference Result 1816 states and 2400 transitions. [2021-12-17 17:02:24,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:24,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:24,451 INFO L225 Difference]: With dead ends: 1816 [2021-12-17 17:02:24,451 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:24,451 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 [2021-12-17 17:02:24,452 INFO L933 BasicCegarLoop]: 1069 mSDtfsCounter, 6175 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 4196 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6175 SdHoareTripleChecker+Valid, 5249 SdHoareTripleChecker+Invalid, 4535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 4196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:24,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6175 Valid, 5249 Invalid, 4535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 4196 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:02:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:24,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1104. [2021-12-17 17:02:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1075 states have (on average 1.3451162790697675) internal successors, (1446), 1103 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1446 transitions. [2021-12-17 17:02:24,664 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1446 transitions. Word has length 116 [2021-12-17 17:02:24,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:24,664 INFO L470 AbstractCegarLoop]: Abstraction has 1104 states and 1446 transitions. [2021-12-17 17:02:24,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1446 transitions. [2021-12-17 17:02:24,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:24,665 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:24,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:24,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-12-17 17:02:24,666 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:24,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1235431825, now seen corresponding path program 1 times [2021-12-17 17:02:24,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:24,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880110171] [2021-12-17 17:02:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:24,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:24,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:24,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880110171] [2021-12-17 17:02:24,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880110171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:24,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:24,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:24,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623417214] [2021-12-17 17:02:24,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:24,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:24,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:24,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:24,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:24,802 INFO L87 Difference]: Start difference. First operand 1104 states and 1446 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:28,178 INFO L93 Difference]: Finished difference Result 2236 states and 3001 transitions. [2021-12-17 17:02:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:28,178 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:28,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:28,180 INFO L225 Difference]: With dead ends: 2236 [2021-12-17 17:02:28,180 INFO L226 Difference]: Without dead ends: 2148 [2021-12-17 17:02:28,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:02:28,181 INFO L933 BasicCegarLoop]: 1081 mSDtfsCounter, 10626 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 3828 mSolverCounterSat, 1563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10626 SdHoareTripleChecker+Valid, 4685 SdHoareTripleChecker+Invalid, 5391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1563 IncrementalHoareTripleChecker+Valid, 3828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:28,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10626 Valid, 4685 Invalid, 5391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1563 Valid, 3828 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:02:28,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-17 17:02:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1108. [2021-12-17 17:02:28,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3438368860055607) internal successors, (1450), 1107 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:28,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1450 transitions. [2021-12-17 17:02:28,385 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1450 transitions. Word has length 116 [2021-12-17 17:02:28,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:28,385 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1450 transitions. [2021-12-17 17:02:28,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:28,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1450 transitions. [2021-12-17 17:02:28,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:28,387 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:28,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:28,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-12-17 17:02:28,387 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:28,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:28,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1884125901, now seen corresponding path program 1 times [2021-12-17 17:02:28,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:28,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675151243] [2021-12-17 17:02:28,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:28,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:28,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:28,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675151243] [2021-12-17 17:02:28,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675151243] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:28,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:28,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:28,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457760748] [2021-12-17 17:02:28,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:28,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:28,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:28,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:28,485 INFO L87 Difference]: Start difference. First operand 1108 states and 1450 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:30,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:30,770 INFO L93 Difference]: Finished difference Result 1818 states and 2400 transitions. [2021-12-17 17:02:30,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:30,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:30,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:30,773 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:02:30,773 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:30,773 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 [2021-12-17 17:02:30,773 INFO L933 BasicCegarLoop]: 1069 mSDtfsCounter, 6173 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 4176 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6173 SdHoareTripleChecker+Valid, 5249 SdHoareTripleChecker+Invalid, 4515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 4176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:30,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6173 Valid, 5249 Invalid, 4515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 4176 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:02:30,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:30,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1108. [2021-12-17 17:02:30,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3429101019462466) internal successors, (1449), 1107 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1449 transitions. [2021-12-17 17:02:30,977 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1449 transitions. Word has length 116 [2021-12-17 17:02:30,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:30,977 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1449 transitions. [2021-12-17 17:02:30,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:30,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1449 transitions. [2021-12-17 17:02:30,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:30,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:30,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:30,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-12-17 17:02:30,979 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:30,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:30,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1147265203, now seen corresponding path program 1 times [2021-12-17 17:02:30,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:30,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906097511] [2021-12-17 17:02:30,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:30,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:31,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:31,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906097511] [2021-12-17 17:02:31,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906097511] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:31,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:31,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:31,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060856931] [2021-12-17 17:02:31,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:31,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:31,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:31,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:31,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:31,058 INFO L87 Difference]: Start difference. First operand 1108 states and 1449 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:33,157 INFO L93 Difference]: Finished difference Result 1735 states and 2275 transitions. [2021-12-17 17:02:33,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:33,158 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:33,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:33,160 INFO L225 Difference]: With dead ends: 1735 [2021-12-17 17:02:33,160 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:33,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:02:33,160 INFO L933 BasicCegarLoop]: 1134 mSDtfsCounter, 5461 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 3739 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5461 SdHoareTripleChecker+Valid, 4560 SdHoareTripleChecker+Invalid, 4112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 3739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:33,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5461 Valid, 4560 Invalid, 4112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 3739 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:02:33,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:33,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1108. [2021-12-17 17:02:33,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3419833178869323) internal successors, (1448), 1107 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1448 transitions. [2021-12-17 17:02:33,379 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1448 transitions. Word has length 116 [2021-12-17 17:02:33,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:33,379 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1448 transitions. [2021-12-17 17:02:33,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1448 transitions. [2021-12-17 17:02:33,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:33,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:33,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:33,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-12-17 17:02:33,381 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:33,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1363670573, now seen corresponding path program 1 times [2021-12-17 17:02:33,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:33,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709018027] [2021-12-17 17:02:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:33,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:33,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:33,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:33,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709018027] [2021-12-17 17:02:33,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709018027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:33,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:33,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:33,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040241217] [2021-12-17 17:02:33,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:33,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:33,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:33,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:33,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:33,466 INFO L87 Difference]: Start difference. First operand 1108 states and 1448 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:35,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:35,595 INFO L93 Difference]: Finished difference Result 1818 states and 2397 transitions. [2021-12-17 17:02:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:35,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:35,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:35,597 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:02:35,597 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:35,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:02:35,597 INFO L933 BasicCegarLoop]: 1088 mSDtfsCounter, 4884 mSDsluCounter, 3726 mSDsCounter, 0 mSdLazyCounter, 3823 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4814 SdHoareTripleChecker+Invalid, 4096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 3823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:35,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 4814 Invalid, 4096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 3823 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:02:35,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1108. [2021-12-17 17:02:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.3410565338276181) internal successors, (1447), 1107 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1447 transitions. [2021-12-17 17:02:35,807 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1447 transitions. Word has length 116 [2021-12-17 17:02:35,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:35,807 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1447 transitions. [2021-12-17 17:02:35,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:35,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1447 transitions. [2021-12-17 17:02:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:35,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:35,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:35,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-12-17 17:02:35,809 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:35,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:35,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1810524402, now seen corresponding path program 1 times [2021-12-17 17:02:35,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:35,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981649628] [2021-12-17 17:02:35,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:35,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:35,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:35,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981649628] [2021-12-17 17:02:35,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981649628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:35,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:35,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:35,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811920066] [2021-12-17 17:02:35,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:35,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:35,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:35,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:35,903 INFO L87 Difference]: Start difference. First operand 1108 states and 1447 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:38,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:38,197 INFO L93 Difference]: Finished difference Result 1816 states and 2393 transitions. [2021-12-17 17:02:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:38,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:38,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:38,199 INFO L225 Difference]: With dead ends: 1816 [2021-12-17 17:02:38,199 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:38,200 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 [2021-12-17 17:02:38,200 INFO L933 BasicCegarLoop]: 1080 mSDtfsCounter, 6149 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6149 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 4494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:38,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6149 Valid, 5293 Invalid, 4494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:02:38,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:38,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1108. [2021-12-17 17:02:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.340129749768304) internal successors, (1446), 1107 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:38,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1446 transitions. [2021-12-17 17:02:38,407 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1446 transitions. Word has length 116 [2021-12-17 17:02:38,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:38,407 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1446 transitions. [2021-12-17 17:02:38,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1446 transitions. [2021-12-17 17:02:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:38,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:38,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:38,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-12-17 17:02:38,408 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:38,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash -156067103, now seen corresponding path program 1 times [2021-12-17 17:02:38,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:38,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483019201] [2021-12-17 17:02:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:38,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:38,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:38,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483019201] [2021-12-17 17:02:38,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483019201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:38,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:38,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:38,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109234435] [2021-12-17 17:02:38,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:38,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:38,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:38,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:38,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:38,543 INFO L87 Difference]: Start difference. First operand 1108 states and 1446 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:42,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:42,015 INFO L93 Difference]: Finished difference Result 2232 states and 2990 transitions. [2021-12-17 17:02:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:42,015 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:42,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:42,017 INFO L225 Difference]: With dead ends: 2232 [2021-12-17 17:02:42,017 INFO L226 Difference]: Without dead ends: 2146 [2021-12-17 17:02:42,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:02:42,018 INFO L933 BasicCegarLoop]: 1126 mSDtfsCounter, 8129 mSDsluCounter, 3766 mSDsCounter, 0 mSdLazyCounter, 4014 mSolverCounterSat, 1284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8129 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 5298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1284 IncrementalHoareTripleChecker+Valid, 4014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:42,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8129 Valid, 4892 Invalid, 5298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1284 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 17:02:42,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2021-12-17 17:02:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1112. [2021-12-17 17:02:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3388734995383196) internal successors, (1450), 1111 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:42,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1450 transitions. [2021-12-17 17:02:42,245 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1450 transitions. Word has length 116 [2021-12-17 17:02:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:42,245 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1450 transitions. [2021-12-17 17:02:42,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:42,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1450 transitions. [2021-12-17 17:02:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:42,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:42,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:42,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-12-17 17:02:42,247 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:42,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:42,247 INFO L85 PathProgramCache]: Analyzing trace with hash 379595975, now seen corresponding path program 1 times [2021-12-17 17:02:42,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:42,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913840118] [2021-12-17 17:02:42,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:42,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:42,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:42,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913840118] [2021-12-17 17:02:42,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913840118] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:42,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:42,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:42,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840923992] [2021-12-17 17:02:42,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:42,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:42,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:42,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:42,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:42,390 INFO L87 Difference]: Start difference. First operand 1112 states and 1450 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:46,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:46,062 INFO L93 Difference]: Finished difference Result 2236 states and 2993 transitions. [2021-12-17 17:02:46,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:46,062 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:46,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:46,064 INFO L225 Difference]: With dead ends: 2236 [2021-12-17 17:02:46,064 INFO L226 Difference]: Without dead ends: 2148 [2021-12-17 17:02:46,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:02:46,065 INFO L933 BasicCegarLoop]: 1080 mSDtfsCounter, 10511 mSDsluCounter, 4636 mSDsCounter, 0 mSdLazyCounter, 4709 mSolverCounterSat, 1557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10511 SdHoareTripleChecker+Valid, 5716 SdHoareTripleChecker+Invalid, 6266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1557 IncrementalHoareTripleChecker+Valid, 4709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:46,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10511 Valid, 5716 Invalid, 6266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1557 Valid, 4709 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:02:46,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-17 17:02:46,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1116. [2021-12-17 17:02:46,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1087 states have (on average 1.3376264949402024) internal successors, (1454), 1115 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1454 transitions. [2021-12-17 17:02:46,286 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1454 transitions. Word has length 116 [2021-12-17 17:02:46,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:46,287 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1454 transitions. [2021-12-17 17:02:46,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1454 transitions. [2021-12-17 17:02:46,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:46,288 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:46,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:46,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-12-17 17:02:46,288 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:46,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1540870843, now seen corresponding path program 1 times [2021-12-17 17:02:46,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:46,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551065107] [2021-12-17 17:02:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:46,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:46,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:46,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551065107] [2021-12-17 17:02:46,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551065107] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:46,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:46,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:46,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895312456] [2021-12-17 17:02:46,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:46,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:46,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:46,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:46,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:46,390 INFO L87 Difference]: Start difference. First operand 1116 states and 1454 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:48,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:48,456 INFO L93 Difference]: Finished difference Result 1816 states and 2390 transitions. [2021-12-17 17:02:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:48,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:48,459 INFO L225 Difference]: With dead ends: 1816 [2021-12-17 17:02:48,459 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:48,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:02:48,459 INFO L933 BasicCegarLoop]: 1080 mSDtfsCounter, 6147 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 3514 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6147 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:48,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6147 Valid, 4434 Invalid, 3853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3514 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:02:48,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:48,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1116. [2021-12-17 17:02:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1087 states have (on average 1.3367065317387306) internal successors, (1453), 1115 states have internal predecessors, (1453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1453 transitions. [2021-12-17 17:02:48,683 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1453 transitions. Word has length 116 [2021-12-17 17:02:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:48,683 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1453 transitions. [2021-12-17 17:02:48,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:48,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1453 transitions. [2021-12-17 17:02:48,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:48,684 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:48,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:48,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-12-17 17:02:48,684 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:48,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:48,685 INFO L85 PathProgramCache]: Analyzing trace with hash 113586456, now seen corresponding path program 1 times [2021-12-17 17:02:48,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:48,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356266874] [2021-12-17 17:02:48,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:48,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:48,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:48,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:48,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356266874] [2021-12-17 17:02:48,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356266874] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:48,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:48,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:48,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554077729] [2021-12-17 17:02:48,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:48,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:48,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:48,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:48,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:48,824 INFO L87 Difference]: Start difference. First operand 1116 states and 1453 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:52,637 INFO L93 Difference]: Finished difference Result 2232 states and 2987 transitions. [2021-12-17 17:02:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:02:52,637 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:52,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:52,639 INFO L225 Difference]: With dead ends: 2232 [2021-12-17 17:02:52,639 INFO L226 Difference]: Without dead ends: 2146 [2021-12-17 17:02:52,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:02:52,640 INFO L933 BasicCegarLoop]: 1137 mSDtfsCounter, 9425 mSDsluCounter, 4879 mSDsCounter, 0 mSdLazyCounter, 4965 mSolverCounterSat, 1519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9425 SdHoareTripleChecker+Valid, 6016 SdHoareTripleChecker+Invalid, 6484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1519 IncrementalHoareTripleChecker+Valid, 4965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:52,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9425 Valid, 6016 Invalid, 6484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1519 Valid, 4965 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:02:52,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2021-12-17 17:02:52,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1120. [2021-12-17 17:02:52,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1091 states have (on average 1.3354720439963337) internal successors, (1457), 1119 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1457 transitions. [2021-12-17 17:02:52,879 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1457 transitions. Word has length 116 [2021-12-17 17:02:52,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:52,879 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 1457 transitions. [2021-12-17 17:02:52,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:52,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1457 transitions. [2021-12-17 17:02:52,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:52,880 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:52,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:52,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-12-17 17:02:52,881 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:52,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:52,881 INFO L85 PathProgramCache]: Analyzing trace with hash -798648475, now seen corresponding path program 1 times [2021-12-17 17:02:52,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:52,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303459378] [2021-12-17 17:02:52,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:52,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:52,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:52,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303459378] [2021-12-17 17:02:52,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303459378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:52,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:52,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:52,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036929853] [2021-12-17 17:02:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:52,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:52,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:52,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:52,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:52,973 INFO L87 Difference]: Start difference. First operand 1120 states and 1457 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:55,049 INFO L93 Difference]: Finished difference Result 1816 states and 2388 transitions. [2021-12-17 17:02:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:55,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:55,051 INFO L225 Difference]: With dead ends: 1816 [2021-12-17 17:02:55,051 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:55,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:02:55,052 INFO L933 BasicCegarLoop]: 1085 mSDtfsCounter, 6136 mSDsluCounter, 3284 mSDsCounter, 0 mSdLazyCounter, 3491 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6136 SdHoareTripleChecker+Valid, 4369 SdHoareTripleChecker+Invalid, 3830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:55,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6136 Valid, 4369 Invalid, 3830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3491 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:02:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:55,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1120. [2021-12-17 17:02:55,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1091 states have (on average 1.3345554537121906) internal successors, (1456), 1119 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1456 transitions. [2021-12-17 17:02:55,289 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1456 transitions. Word has length 116 [2021-12-17 17:02:55,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:55,289 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 1456 transitions. [2021-12-17 17:02:55,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1456 transitions. [2021-12-17 17:02:55,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:55,290 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:55,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:55,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-12-17 17:02:55,291 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:55,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:55,291 INFO L85 PathProgramCache]: Analyzing trace with hash 414565867, now seen corresponding path program 1 times [2021-12-17 17:02:55,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:55,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759837689] [2021-12-17 17:02:55,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:55,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:55,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:55,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:55,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759837689] [2021-12-17 17:02:55,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759837689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:55,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:55,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:02:55,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587393974] [2021-12-17 17:02:55,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:55,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:02:55,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:55,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:02:55,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:02:55,387 INFO L87 Difference]: Start difference. First operand 1120 states and 1456 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:57,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:02:57,683 INFO L93 Difference]: Finished difference Result 1818 states and 2388 transitions. [2021-12-17 17:02:57,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:02:57,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:02:57,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:02:57,685 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:02:57,685 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:02:57,686 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 [2021-12-17 17:02:57,686 INFO L933 BasicCegarLoop]: 1068 mSDtfsCounter, 6151 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 4106 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6151 SdHoareTripleChecker+Valid, 5245 SdHoareTripleChecker+Invalid, 4445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 4106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:02:57,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6151 Valid, 5245 Invalid, 4445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 4106 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:02:57,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:02:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1120. [2021-12-17 17:02:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1091 states have (on average 1.3336388634280476) internal successors, (1455), 1119 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:57,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1455 transitions. [2021-12-17 17:02:57,923 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1455 transitions. Word has length 116 [2021-12-17 17:02:57,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:02:57,923 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 1455 transitions. [2021-12-17 17:02:57,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:02:57,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1455 transitions. [2021-12-17 17:02:57,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:02:57,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:02:57,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:02:57,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-12-17 17:02:57,925 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:02:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:02:57,925 INFO L85 PathProgramCache]: Analyzing trace with hash -850530608, now seen corresponding path program 1 times [2021-12-17 17:02:57,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:02:57,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328000060] [2021-12-17 17:02:57,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:02:57,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:02:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:02:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:02:58,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:02:58,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328000060] [2021-12-17 17:02:58,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328000060] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:02:58,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:02:58,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:02:58,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768876180] [2021-12-17 17:02:58,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:02:58,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:02:58,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:02:58,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:02:58,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:02:58,060 INFO L87 Difference]: Start difference. First operand 1120 states and 1455 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:01,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:01,973 INFO L93 Difference]: Finished difference Result 2156 states and 2865 transitions. [2021-12-17 17:03:01,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:03:01,974 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:01,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:01,976 INFO L225 Difference]: With dead ends: 2156 [2021-12-17 17:03:01,976 INFO L226 Difference]: Without dead ends: 2151 [2021-12-17 17:03:01,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:03:01,977 INFO L933 BasicCegarLoop]: 1130 mSDtfsCounter, 9545 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 4682 mSolverCounterSat, 1521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9545 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 6203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1521 IncrementalHoareTripleChecker+Valid, 4682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:01,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9545 Valid, 5553 Invalid, 6203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1521 Valid, 4682 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 17:03:01,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2021-12-17 17:03:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1124. [2021-12-17 17:03:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1095 states have (on average 1.3324200913242008) internal successors, (1459), 1123 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1459 transitions. [2021-12-17 17:03:02,210 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1459 transitions. Word has length 116 [2021-12-17 17:03:02,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:02,210 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1459 transitions. [2021-12-17 17:03:02,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:02,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1459 transitions. [2021-12-17 17:03:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:02,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:02,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:02,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-12-17 17:03:02,212 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:02,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:02,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1063259943, now seen corresponding path program 1 times [2021-12-17 17:03:02,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:02,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790377187] [2021-12-17 17:03:02,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:02,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:02,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:02,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790377187] [2021-12-17 17:03:02,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790377187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:02,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:02,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:03:02,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979031668] [2021-12-17 17:03:02,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:02,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:03:02,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:02,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:03:02,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:03:02,368 INFO L87 Difference]: Start difference. First operand 1124 states and 1459 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:06,182 INFO L93 Difference]: Finished difference Result 2236 states and 2986 transitions. [2021-12-17 17:03:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:03:06,183 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:06,185 INFO L225 Difference]: With dead ends: 2236 [2021-12-17 17:03:06,185 INFO L226 Difference]: Without dead ends: 2148 [2021-12-17 17:03:06,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:03:06,185 INFO L933 BasicCegarLoop]: 1076 mSDtfsCounter, 8828 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 4662 mSolverCounterSat, 1305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8828 SdHoareTripleChecker+Valid, 5700 SdHoareTripleChecker+Invalid, 5967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1305 IncrementalHoareTripleChecker+Valid, 4662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:06,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8828 Valid, 5700 Invalid, 5967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1305 Valid, 4662 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:03:06,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-17 17:03:06,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1128. [2021-12-17 17:03:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1099 states have (on average 1.3312101910828025) internal successors, (1463), 1127 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1463 transitions. [2021-12-17 17:03:06,434 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1463 transitions. Word has length 116 [2021-12-17 17:03:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:06,435 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1463 transitions. [2021-12-17 17:03:06,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1463 transitions. [2021-12-17 17:03:06,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:06,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:06,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:06,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-12-17 17:03:06,436 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:06,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1650345474, now seen corresponding path program 1 times [2021-12-17 17:03:06,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:06,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562844963] [2021-12-17 17:03:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:06,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:06,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:06,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562844963] [2021-12-17 17:03:06,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562844963] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:06,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:06,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:06,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685239180] [2021-12-17 17:03:06,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:06,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:06,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:06,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:06,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:06,535 INFO L87 Difference]: Start difference. First operand 1128 states and 1463 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:08,889 INFO L93 Difference]: Finished difference Result 1816 states and 2383 transitions. [2021-12-17 17:03:08,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:08,890 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:08,892 INFO L225 Difference]: With dead ends: 1816 [2021-12-17 17:03:08,892 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:08,893 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 [2021-12-17 17:03:08,896 INFO L933 BasicCegarLoop]: 1008 mSDtfsCounter, 6258 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 3906 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6258 SdHoareTripleChecker+Valid, 5004 SdHoareTripleChecker+Invalid, 4247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 3906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:08,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6258 Valid, 5004 Invalid, 4247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 3906 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:03:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:09,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1128. [2021-12-17 17:03:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1099 states have (on average 1.3303002729754323) internal successors, (1462), 1127 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:09,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1462 transitions. [2021-12-17 17:03:09,203 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1462 transitions. Word has length 116 [2021-12-17 17:03:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:09,203 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1462 transitions. [2021-12-17 17:03:09,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:09,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1462 transitions. [2021-12-17 17:03:09,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:09,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:09,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:09,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-12-17 17:03:09,206 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:09,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:09,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1654269712, now seen corresponding path program 1 times [2021-12-17 17:03:09,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:09,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006063573] [2021-12-17 17:03:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:09,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:09,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:09,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:09,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006063573] [2021-12-17 17:03:09,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006063573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:09,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:09,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:09,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433955961] [2021-12-17 17:03:09,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:09,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:09,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:09,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:09,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:09,334 INFO L87 Difference]: Start difference. First operand 1128 states and 1462 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:11,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:11,752 INFO L93 Difference]: Finished difference Result 1735 states and 2260 transitions. [2021-12-17 17:03:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:11,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:11,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:11,754 INFO L225 Difference]: With dead ends: 1735 [2021-12-17 17:03:11,754 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:11,755 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 [2021-12-17 17:03:11,755 INFO L933 BasicCegarLoop]: 1009 mSDtfsCounter, 6256 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6256 SdHoareTripleChecker+Valid, 5005 SdHoareTripleChecker+Invalid, 4238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:11,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6256 Valid, 5005 Invalid, 4238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:03:11,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:11,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1128. [2021-12-17 17:03:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1099 states have (on average 1.329390354868062) internal successors, (1461), 1127 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1461 transitions. [2021-12-17 17:03:11,992 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1461 transitions. Word has length 116 [2021-12-17 17:03:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:11,992 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1461 transitions. [2021-12-17 17:03:11,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1461 transitions. [2021-12-17 17:03:11,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:11,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:11,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:11,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-12-17 17:03:11,994 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:11,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:11,995 INFO L85 PathProgramCache]: Analyzing trace with hash 257927390, now seen corresponding path program 1 times [2021-12-17 17:03:11,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:11,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963432965] [2021-12-17 17:03:11,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:11,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:12,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:12,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:12,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963432965] [2021-12-17 17:03:12,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963432965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:12,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:12,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:12,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362984610] [2021-12-17 17:03:12,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:12,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:12,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:12,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:12,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:12,100 INFO L87 Difference]: Start difference. First operand 1128 states and 1461 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:14,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:14,307 INFO L93 Difference]: Finished difference Result 1867 states and 2431 transitions. [2021-12-17 17:03:14,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:14,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:14,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:14,309 INFO L225 Difference]: With dead ends: 1867 [2021-12-17 17:03:14,309 INFO L226 Difference]: Without dead ends: 1850 [2021-12-17 17:03:14,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:14,310 INFO L933 BasicCegarLoop]: 1225 mSDtfsCounter, 4827 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 3791 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 5027 SdHoareTripleChecker+Invalid, 3950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 3791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:14,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4827 Valid, 5027 Invalid, 3950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 3791 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:03:14,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-12-17 17:03:14,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1128. [2021-12-17 17:03:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1099 states have (on average 1.3284804367606915) internal successors, (1460), 1127 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1460 transitions. [2021-12-17 17:03:14,566 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1460 transitions. Word has length 116 [2021-12-17 17:03:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:14,566 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1460 transitions. [2021-12-17 17:03:14,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1460 transitions. [2021-12-17 17:03:14,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:14,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:14,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:14,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-12-17 17:03:14,568 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:14,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:14,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1144192638, now seen corresponding path program 1 times [2021-12-17 17:03:14,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:14,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10782732] [2021-12-17 17:03:14,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:14,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:14,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:14,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10782732] [2021-12-17 17:03:14,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10782732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:14,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:14,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:14,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158417564] [2021-12-17 17:03:14,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:14,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:14,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:14,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:14,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:14,669 INFO L87 Difference]: Start difference. First operand 1128 states and 1460 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:17,050 INFO L93 Difference]: Finished difference Result 1818 states and 2382 transitions. [2021-12-17 17:03:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:17,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:17,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:17,053 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:03:17,053 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:17,054 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 [2021-12-17 17:03:17,054 INFO L933 BasicCegarLoop]: 1021 mSDtfsCounter, 6227 mSDsluCounter, 4035 mSDsCounter, 0 mSdLazyCounter, 3913 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6227 SdHoareTripleChecker+Valid, 5056 SdHoareTripleChecker+Invalid, 4253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 3913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:17,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6227 Valid, 5056 Invalid, 4253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 3913 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:03:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1128. [2021-12-17 17:03:17,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1099 states have (on average 1.327570518653321) internal successors, (1459), 1127 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:17,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1459 transitions. [2021-12-17 17:03:17,325 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1459 transitions. Word has length 116 [2021-12-17 17:03:17,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:17,326 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1459 transitions. [2021-12-17 17:03:17,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:17,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1459 transitions. [2021-12-17 17:03:17,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:17,327 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:17,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:17,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-12-17 17:03:17,328 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:17,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:17,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1885561009, now seen corresponding path program 1 times [2021-12-17 17:03:17,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:17,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833803279] [2021-12-17 17:03:17,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:17,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:17,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:17,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833803279] [2021-12-17 17:03:17,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833803279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:17,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:17,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:03:17,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940497617] [2021-12-17 17:03:17,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:17,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:03:17,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:17,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:03:17,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:03:17,467 INFO L87 Difference]: Start difference. First operand 1128 states and 1459 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:21,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:21,354 INFO L93 Difference]: Finished difference Result 2156 states and 2859 transitions. [2021-12-17 17:03:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:03:21,354 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:21,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:21,356 INFO L225 Difference]: With dead ends: 2156 [2021-12-17 17:03:21,356 INFO L226 Difference]: Without dead ends: 2151 [2021-12-17 17:03:21,357 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 [2021-12-17 17:03:21,357 INFO L933 BasicCegarLoop]: 1089 mSDtfsCounter, 10556 mSDsluCounter, 3618 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 1541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10556 SdHoareTripleChecker+Valid, 4707 SdHoareTripleChecker+Invalid, 5288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1541 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:21,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10556 Valid, 4707 Invalid, 5288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1541 Valid, 3747 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:03:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2021-12-17 17:03:21,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1132. [2021-12-17 17:03:21,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1103 states have (on average 1.3263825929283772) internal successors, (1463), 1131 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:21,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1463 transitions. [2021-12-17 17:03:21,638 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1463 transitions. Word has length 116 [2021-12-17 17:03:21,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:21,638 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1463 transitions. [2021-12-17 17:03:21,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1463 transitions. [2021-12-17 17:03:21,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:21,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:21,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:21,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-12-17 17:03:21,639 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:21,639 INFO L85 PathProgramCache]: Analyzing trace with hash 975324948, now seen corresponding path program 1 times [2021-12-17 17:03:21,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:21,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775215135] [2021-12-17 17:03:21,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:21,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:21,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:21,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:21,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775215135] [2021-12-17 17:03:21,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775215135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:21,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:21,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:21,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167132088] [2021-12-17 17:03:21,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:21,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:21,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:21,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:21,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:21,726 INFO L87 Difference]: Start difference. First operand 1132 states and 1463 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:23,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:23,898 INFO L93 Difference]: Finished difference Result 1816 states and 2378 transitions. [2021-12-17 17:03:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:23,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:23,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:23,900 INFO L225 Difference]: With dead ends: 1816 [2021-12-17 17:03:23,900 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:23,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:23,901 INFO L933 BasicCegarLoop]: 1073 mSDtfsCounter, 6122 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 3473 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6122 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:23,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6122 Valid, 4406 Invalid, 3811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3473 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:03:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:24,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1132. [2021-12-17 17:03:24,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1103 states have (on average 1.3254759746146871) internal successors, (1462), 1131 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:24,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1462 transitions. [2021-12-17 17:03:24,259 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1462 transitions. Word has length 116 [2021-12-17 17:03:24,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:24,259 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1462 transitions. [2021-12-17 17:03:24,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1462 transitions. [2021-12-17 17:03:24,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:24,260 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:24,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:24,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-12-17 17:03:24,261 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:24,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:24,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1723135778, now seen corresponding path program 1 times [2021-12-17 17:03:24,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:24,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020929159] [2021-12-17 17:03:24,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:24,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:24,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:24,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020929159] [2021-12-17 17:03:24,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020929159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:24,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:24,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:03:24,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725365836] [2021-12-17 17:03:24,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:24,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:03:24,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:24,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:03:24,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:03:24,399 INFO L87 Difference]: Start difference. First operand 1132 states and 1462 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:28,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:28,206 INFO L93 Difference]: Finished difference Result 2236 states and 2979 transitions. [2021-12-17 17:03:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:03:28,206 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:28,208 INFO L225 Difference]: With dead ends: 2236 [2021-12-17 17:03:28,208 INFO L226 Difference]: Without dead ends: 2148 [2021-12-17 17:03:28,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:03:28,209 INFO L933 BasicCegarLoop]: 1084 mSDtfsCounter, 8774 mSDsluCounter, 4652 mSDsCounter, 0 mSdLazyCounter, 4645 mSolverCounterSat, 1290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8774 SdHoareTripleChecker+Valid, 5736 SdHoareTripleChecker+Invalid, 5935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1290 IncrementalHoareTripleChecker+Valid, 4645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:28,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8774 Valid, 5736 Invalid, 5935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1290 Valid, 4645 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:03:28,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-17 17:03:28,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1136. [2021-12-17 17:03:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1107 states have (on average 1.3242999096657633) internal successors, (1466), 1135 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1466 transitions. [2021-12-17 17:03:28,491 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1466 transitions. Word has length 116 [2021-12-17 17:03:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:28,492 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1466 transitions. [2021-12-17 17:03:28,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1466 transitions. [2021-12-17 17:03:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:28,493 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:28,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:28,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-12-17 17:03:28,493 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:28,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:28,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1923137442, now seen corresponding path program 1 times [2021-12-17 17:03:28,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:28,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362828036] [2021-12-17 17:03:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:28,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:28,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:28,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362828036] [2021-12-17 17:03:28,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362828036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:28,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:28,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:28,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520792819] [2021-12-17 17:03:28,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:28,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:28,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:28,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:28,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:28,583 INFO L87 Difference]: Start difference. First operand 1136 states and 1466 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:30,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:30,847 INFO L93 Difference]: Finished difference Result 1818 states and 2378 transitions. [2021-12-17 17:03:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:30,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:30,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:30,849 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:03:30,849 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:30,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:30,850 INFO L933 BasicCegarLoop]: 1073 mSDtfsCounter, 6120 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 3455 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6120 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 3793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:30,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6120 Valid, 4406 Invalid, 3793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3455 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:03:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:31,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1136. [2021-12-17 17:03:31,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1107 states have (on average 1.3233965672990062) internal successors, (1465), 1135 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1465 transitions. [2021-12-17 17:03:31,112 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1465 transitions. Word has length 116 [2021-12-17 17:03:31,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:31,112 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1465 transitions. [2021-12-17 17:03:31,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1465 transitions. [2021-12-17 17:03:31,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:31,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:31,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:31,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-12-17 17:03:31,114 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:31,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash 658258434, now seen corresponding path program 1 times [2021-12-17 17:03:31,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:31,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794360991] [2021-12-17 17:03:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:31,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:31,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:31,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794360991] [2021-12-17 17:03:31,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794360991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:31,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:31,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:03:31,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728185902] [2021-12-17 17:03:31,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:31,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:03:31,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:31,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:03:31,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:03:31,254 INFO L87 Difference]: Start difference. First operand 1136 states and 1465 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:35,116 INFO L93 Difference]: Finished difference Result 2156 states and 2855 transitions. [2021-12-17 17:03:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:03:35,117 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:35,119 INFO L225 Difference]: With dead ends: 2156 [2021-12-17 17:03:35,119 INFO L226 Difference]: Without dead ends: 2151 [2021-12-17 17:03:35,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:03:35,119 INFO L933 BasicCegarLoop]: 1134 mSDtfsCounter, 8097 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 3934 mSolverCounterSat, 1275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8097 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 5209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 3934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:35,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8097 Valid, 4918 Invalid, 5209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1275 Valid, 3934 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 17:03:35,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2021-12-17 17:03:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1140. [2021-12-17 17:03:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1111 states have (on average 1.3222322232223223) internal successors, (1469), 1139 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1469 transitions. [2021-12-17 17:03:35,390 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1469 transitions. Word has length 116 [2021-12-17 17:03:35,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:35,390 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 1469 transitions. [2021-12-17 17:03:35,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1469 transitions. [2021-12-17 17:03:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:35,391 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:35,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:35,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-12-17 17:03:35,391 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:35,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1851374526, now seen corresponding path program 1 times [2021-12-17 17:03:35,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:35,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072015865] [2021-12-17 17:03:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:35,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:35,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:35,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072015865] [2021-12-17 17:03:35,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072015865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:35,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:35,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:03:35,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021806112] [2021-12-17 17:03:35,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:35,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:03:35,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:35,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:03:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:03:35,522 INFO L87 Difference]: Start difference. First operand 1140 states and 1469 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:39,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:39,144 INFO L93 Difference]: Finished difference Result 2236 states and 2976 transitions. [2021-12-17 17:03:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:03:39,145 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:39,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:39,147 INFO L225 Difference]: With dead ends: 2236 [2021-12-17 17:03:39,147 INFO L226 Difference]: Without dead ends: 2148 [2021-12-17 17:03:39,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:03:39,147 INFO L933 BasicCegarLoop]: 1080 mSDtfsCounter, 8887 mSDsluCounter, 3606 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8887 SdHoareTripleChecker+Valid, 4686 SdHoareTripleChecker+Invalid, 5015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:39,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8887 Valid, 4686 Invalid, 5015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1302 Valid, 3713 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 17:03:39,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-12-17 17:03:39,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1144. [2021-12-17 17:03:39,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3210762331838566) internal successors, (1473), 1143 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1473 transitions. [2021-12-17 17:03:39,431 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1473 transitions. Word has length 116 [2021-12-17 17:03:39,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:39,432 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1473 transitions. [2021-12-17 17:03:39,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:39,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1473 transitions. [2021-12-17 17:03:39,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:39,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:39,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:39,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-12-17 17:03:39,433 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:39,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:39,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2140742563, now seen corresponding path program 1 times [2021-12-17 17:03:39,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:39,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296982548] [2021-12-17 17:03:39,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:39,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:39,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:39,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296982548] [2021-12-17 17:03:39,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296982548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:39,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:39,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:39,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500136729] [2021-12-17 17:03:39,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:39,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:39,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:39,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:39,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:39,517 INFO L87 Difference]: Start difference. First operand 1144 states and 1473 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:41,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:41,737 INFO L93 Difference]: Finished difference Result 1816 states and 2373 transitions. [2021-12-17 17:03:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:41,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:41,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:41,739 INFO L225 Difference]: With dead ends: 1816 [2021-12-17 17:03:41,739 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:41,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:41,739 INFO L933 BasicCegarLoop]: 1080 mSDtfsCounter, 6110 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 3438 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6110 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:41,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6110 Valid, 4434 Invalid, 3776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3438 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:03:41,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:42,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:03:42,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3201793721973094) internal successors, (1472), 1143 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:42,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1472 transitions. [2021-12-17 17:03:42,021 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1472 transitions. Word has length 116 [2021-12-17 17:03:42,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:42,021 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1472 transitions. [2021-12-17 17:03:42,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:42,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1472 transitions. [2021-12-17 17:03:42,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:42,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:42,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:42,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-12-17 17:03:42,023 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:42,023 INFO L85 PathProgramCache]: Analyzing trace with hash -486285264, now seen corresponding path program 1 times [2021-12-17 17:03:42,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:42,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190529632] [2021-12-17 17:03:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:42,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:42,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:42,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:42,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190529632] [2021-12-17 17:03:42,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190529632] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:42,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:42,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:42,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086886012] [2021-12-17 17:03:42,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:42,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:42,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:42,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:42,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:42,132 INFO L87 Difference]: Start difference. First operand 1144 states and 1472 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:44,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:44,340 INFO L93 Difference]: Finished difference Result 1816 states and 2372 transitions. [2021-12-17 17:03:44,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:44,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:44,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:44,342 INFO L225 Difference]: With dead ends: 1816 [2021-12-17 17:03:44,342 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:44,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:44,343 INFO L933 BasicCegarLoop]: 1085 mSDtfsCounter, 6099 mSDsluCounter, 3284 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6099 SdHoareTripleChecker+Valid, 4369 SdHoareTripleChecker+Invalid, 3758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:44,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6099 Valid, 4369 Invalid, 3758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3420 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:03:44,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:44,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:03:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3192825112107622) internal successors, (1471), 1143 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:44,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1471 transitions. [2021-12-17 17:03:44,621 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1471 transitions. Word has length 116 [2021-12-17 17:03:44,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:44,622 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1471 transitions. [2021-12-17 17:03:44,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:44,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1471 transitions. [2021-12-17 17:03:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:44,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:44,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:44,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-12-17 17:03:44,624 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:44,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1410053005, now seen corresponding path program 1 times [2021-12-17 17:03:44,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:44,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730424585] [2021-12-17 17:03:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:44,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:44,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:44,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730424585] [2021-12-17 17:03:44,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730424585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:44,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:44,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:44,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550831755] [2021-12-17 17:03:44,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:44,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:44,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:44,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:44,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:44,722 INFO L87 Difference]: Start difference. First operand 1144 states and 1471 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:47,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:47,077 INFO L93 Difference]: Finished difference Result 1821 states and 2375 transitions. [2021-12-17 17:03:47,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:47,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:47,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:47,080 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:03:47,080 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:47,080 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 [2021-12-17 17:03:47,080 INFO L933 BasicCegarLoop]: 1013 mSDtfsCounter, 6222 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 3842 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6222 SdHoareTripleChecker+Valid, 5020 SdHoareTripleChecker+Invalid, 4182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 3842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:47,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6222 Valid, 5020 Invalid, 4182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 3842 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:03:47,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:03:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3183856502242153) internal successors, (1470), 1143 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1470 transitions. [2021-12-17 17:03:47,353 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1470 transitions. Word has length 116 [2021-12-17 17:03:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:47,354 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1470 transitions. [2021-12-17 17:03:47,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:47,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1470 transitions. [2021-12-17 17:03:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:47,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:47,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:47,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-12-17 17:03:47,355 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:47,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:47,355 INFO L85 PathProgramCache]: Analyzing trace with hash 502144097, now seen corresponding path program 1 times [2021-12-17 17:03:47,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:47,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326289604] [2021-12-17 17:03:47,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:47,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:47,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:47,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326289604] [2021-12-17 17:03:47,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326289604] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:47,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:47,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:47,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631628705] [2021-12-17 17:03:47,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:47,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:47,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:47,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:47,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:47,461 INFO L87 Difference]: Start difference. First operand 1144 states and 1470 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:49,966 INFO L93 Difference]: Finished difference Result 1977 states and 2572 transitions. [2021-12-17 17:03:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:49,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:49,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:49,968 INFO L225 Difference]: With dead ends: 1977 [2021-12-17 17:03:49,968 INFO L226 Difference]: Without dead ends: 1874 [2021-12-17 17:03:49,969 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 [2021-12-17 17:03:49,969 INFO L933 BasicCegarLoop]: 1156 mSDtfsCounter, 6099 mSDsluCounter, 4651 mSDsCounter, 0 mSdLazyCounter, 4262 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6099 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 4439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:49,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6099 Valid, 5807 Invalid, 4439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4262 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:03:49,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2021-12-17 17:03:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1144. [2021-12-17 17:03:50,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.317488789237668) internal successors, (1469), 1143 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:50,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1469 transitions. [2021-12-17 17:03:50,243 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1469 transitions. Word has length 116 [2021-12-17 17:03:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:50,243 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1469 transitions. [2021-12-17 17:03:50,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1469 transitions. [2021-12-17 17:03:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:50,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:50,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:50,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-12-17 17:03:50,245 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash 882527643, now seen corresponding path program 1 times [2021-12-17 17:03:50,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:50,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280525646] [2021-12-17 17:03:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:50,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:50,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:50,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280525646] [2021-12-17 17:03:50,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280525646] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:50,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:50,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:50,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103134605] [2021-12-17 17:03:50,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:50,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:50,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:50,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:50,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:50,319 INFO L87 Difference]: Start difference. First operand 1144 states and 1469 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:52,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:52,522 INFO L93 Difference]: Finished difference Result 2036 states and 2651 transitions. [2021-12-17 17:03:52,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:52,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:52,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:52,524 INFO L225 Difference]: With dead ends: 2036 [2021-12-17 17:03:52,524 INFO L226 Difference]: Without dead ends: 1910 [2021-12-17 17:03:52,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:52,525 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 4728 mSDsluCounter, 4028 mSDsCounter, 0 mSdLazyCounter, 3880 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 5332 SdHoareTripleChecker+Invalid, 3965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:52,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4728 Valid, 5332 Invalid, 3965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3880 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:03:52,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2021-12-17 17:03:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1144. [2021-12-17 17:03:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3165919282511211) internal successors, (1468), 1143 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1468 transitions. [2021-12-17 17:03:52,806 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1468 transitions. Word has length 116 [2021-12-17 17:03:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:52,806 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1468 transitions. [2021-12-17 17:03:52,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:52,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1468 transitions. [2021-12-17 17:03:52,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:52,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:52,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:52,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-12-17 17:03:52,807 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:52,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:52,808 INFO L85 PathProgramCache]: Analyzing trace with hash -905114878, now seen corresponding path program 1 times [2021-12-17 17:03:52,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:52,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856814671] [2021-12-17 17:03:52,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:52,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:52,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:52,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856814671] [2021-12-17 17:03:52,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856814671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:52,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:52,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:52,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584539673] [2021-12-17 17:03:52,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:52,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:52,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:52,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:52,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:52,890 INFO L87 Difference]: Start difference. First operand 1144 states and 1468 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:55,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:55,270 INFO L93 Difference]: Finished difference Result 1818 states and 2369 transitions. [2021-12-17 17:03:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:55,271 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:55,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:55,273 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:03:55,273 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:55,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:55,273 INFO L933 BasicCegarLoop]: 1081 mSDtfsCounter, 4790 mSDsluCounter, 4221 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 5302 SdHoareTripleChecker+Invalid, 4299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:55,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4790 Valid, 5302 Invalid, 4299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:03:55,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:55,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:03:55,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.315695067264574) internal successors, (1467), 1143 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:55,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1467 transitions. [2021-12-17 17:03:55,560 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1467 transitions. Word has length 116 [2021-12-17 17:03:55,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:55,560 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1467 transitions. [2021-12-17 17:03:55,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1467 transitions. [2021-12-17 17:03:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:55,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:55,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:55,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-12-17 17:03:55,561 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:55,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:55,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2123895012, now seen corresponding path program 1 times [2021-12-17 17:03:55,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:55,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337026942] [2021-12-17 17:03:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:55,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:55,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:55,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337026942] [2021-12-17 17:03:55,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337026942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:55,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:55,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:55,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917633629] [2021-12-17 17:03:55,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:55,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:55,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:55,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:55,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:55,648 INFO L87 Difference]: Start difference. First operand 1144 states and 1467 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:58,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:03:58,009 INFO L93 Difference]: Finished difference Result 1821 states and 2371 transitions. [2021-12-17 17:03:58,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:03:58,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:03:58,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:03:58,012 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:03:58,012 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:03:58,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:03:58,012 INFO L933 BasicCegarLoop]: 1104 mSDtfsCounter, 4767 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 4005 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 5296 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 4005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:03:58,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4767 Valid, 5296 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 4005 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:03:58,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:03:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:03:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.314798206278027) internal successors, (1466), 1143 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1466 transitions. [2021-12-17 17:03:58,291 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1466 transitions. Word has length 116 [2021-12-17 17:03:58,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:03:58,291 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1466 transitions. [2021-12-17 17:03:58,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:03:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1466 transitions. [2021-12-17 17:03:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:03:58,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:03:58,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:03:58,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-12-17 17:03:58,293 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:03:58,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:03:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1415935709, now seen corresponding path program 1 times [2021-12-17 17:03:58,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:03:58,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519254069] [2021-12-17 17:03:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:03:58,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:03:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:03:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:03:58,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:03:58,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519254069] [2021-12-17 17:03:58,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519254069] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:03:58,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:03:58,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:03:58,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080753152] [2021-12-17 17:03:58,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:03:58,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:03:58,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:03:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:03:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:03:58,380 INFO L87 Difference]: Start difference. First operand 1144 states and 1466 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:00,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:00,607 INFO L93 Difference]: Finished difference Result 1821 states and 2369 transitions. [2021-12-17 17:04:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:00,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:00,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:00,609 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:04:00,609 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:04:00,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:00,609 INFO L933 BasicCegarLoop]: 1031 mSDtfsCounter, 4933 mSDsluCounter, 3637 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4933 SdHoareTripleChecker+Valid, 4668 SdHoareTripleChecker+Invalid, 3807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 3534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:00,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4933 Valid, 4668 Invalid, 3807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 3534 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:04:00,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:04:00,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3139013452914798) internal successors, (1465), 1143 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1465 transitions. [2021-12-17 17:04:00,895 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1465 transitions. Word has length 116 [2021-12-17 17:04:00,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:00,895 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1465 transitions. [2021-12-17 17:04:00,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:00,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1465 transitions. [2021-12-17 17:04:00,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:04:00,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:00,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:00,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-12-17 17:04:00,896 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:00,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:00,897 INFO L85 PathProgramCache]: Analyzing trace with hash 496261393, now seen corresponding path program 1 times [2021-12-17 17:04:00,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:00,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385771584] [2021-12-17 17:04:00,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:00,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:00,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:00,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385771584] [2021-12-17 17:04:00,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385771584] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:00,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:00,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:00,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63137093] [2021-12-17 17:04:00,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:00,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:00,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:00,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:00,998 INFO L87 Difference]: Start difference. First operand 1144 states and 1465 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:03,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:03,430 INFO L93 Difference]: Finished difference Result 1977 states and 2566 transitions. [2021-12-17 17:04:03,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:03,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:03,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:03,432 INFO L225 Difference]: With dead ends: 1977 [2021-12-17 17:04:03,432 INFO L226 Difference]: Without dead ends: 1874 [2021-12-17 17:04:03,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:03,433 INFO L933 BasicCegarLoop]: 1261 mSDtfsCounter, 4575 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 4108 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4575 SdHoareTripleChecker+Valid, 5642 SdHoareTripleChecker+Invalid, 4247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 4108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:03,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4575 Valid, 5642 Invalid, 4247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 4108 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:04:03,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2021-12-17 17:04:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1144. [2021-12-17 17:04:03,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3130044843049327) internal successors, (1464), 1143 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1464 transitions. [2021-12-17 17:04:03,718 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1464 transitions. Word has length 116 [2021-12-17 17:04:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:03,718 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1464 transitions. [2021-12-17 17:04:03,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1464 transitions. [2021-12-17 17:04:03,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:04:03,720 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:03,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:03,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-12-17 17:04:03,720 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:03,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:03,720 INFO L85 PathProgramCache]: Analyzing trace with hash 13883566, now seen corresponding path program 1 times [2021-12-17 17:04:03,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:03,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96104908] [2021-12-17 17:04:03,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:03,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:03,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:03,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96104908] [2021-12-17 17:04:03,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96104908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:03,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:03,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:03,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410531687] [2021-12-17 17:04:03,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:03,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:03,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:03,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:03,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:03,812 INFO L87 Difference]: Start difference. First operand 1144 states and 1464 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:06,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:06,025 INFO L93 Difference]: Finished difference Result 1818 states and 2364 transitions. [2021-12-17 17:04:06,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:06,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:06,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:06,027 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:04:06,027 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:04:06,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:06,027 INFO L933 BasicCegarLoop]: 1111 mSDtfsCounter, 6026 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 3425 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6026 SdHoareTripleChecker+Valid, 4473 SdHoareTripleChecker+Invalid, 3761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 3425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:06,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6026 Valid, 4473 Invalid, 3761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 3425 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:06,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:04:06,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:04:06,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3121076233183857) internal successors, (1463), 1143 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1463 transitions. [2021-12-17 17:04:06,306 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1463 transitions. Word has length 116 [2021-12-17 17:04:06,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:06,306 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1463 transitions. [2021-12-17 17:04:06,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:06,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1463 transitions. [2021-12-17 17:04:06,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:04:06,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:06,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:06,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-12-17 17:04:06,308 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:06,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:06,308 INFO L85 PathProgramCache]: Analyzing trace with hash -634810510, now seen corresponding path program 1 times [2021-12-17 17:04:06,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:06,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211221801] [2021-12-17 17:04:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:06,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:06,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:06,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211221801] [2021-12-17 17:04:06,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211221801] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:06,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:06,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:06,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534464576] [2021-12-17 17:04:06,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:06,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:06,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:06,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:06,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:06,403 INFO L87 Difference]: Start difference. First operand 1144 states and 1463 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:08,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:08,849 INFO L93 Difference]: Finished difference Result 1818 states and 2362 transitions. [2021-12-17 17:04:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:08,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:08,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:08,852 INFO L225 Difference]: With dead ends: 1818 [2021-12-17 17:04:08,852 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:04:08,852 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 [2021-12-17 17:04:08,852 INFO L933 BasicCegarLoop]: 1089 mSDtfsCounter, 6045 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 4028 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6045 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 4364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 4028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:08,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6045 Valid, 5329 Invalid, 4364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 4028 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:04:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:04:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:04:09,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3112107623318385) internal successors, (1462), 1143 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1462 transitions. [2021-12-17 17:04:09,130 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1462 transitions. Word has length 116 [2021-12-17 17:04:09,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:09,130 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1462 transitions. [2021-12-17 17:04:09,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:09,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1462 transitions. [2021-12-17 17:04:09,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:04:09,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:09,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:09,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-12-17 17:04:09,131 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:09,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:09,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1900387597, now seen corresponding path program 1 times [2021-12-17 17:04:09,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:09,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647644709] [2021-12-17 17:04:09,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:09,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:09,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:09,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:09,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647644709] [2021-12-17 17:04:09,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647644709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:09,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:09,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:09,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099997706] [2021-12-17 17:04:09,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:09,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:09,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:09,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:09,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:09,229 INFO L87 Difference]: Start difference. First operand 1144 states and 1462 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:11,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:11,485 INFO L93 Difference]: Finished difference Result 1821 states and 2364 transitions. [2021-12-17 17:04:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:11,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:11,487 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:04:11,487 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:04:11,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:11,487 INFO L933 BasicCegarLoop]: 1113 mSDtfsCounter, 6021 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6021 SdHoareTripleChecker+Valid, 4474 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:11,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6021 Valid, 4474 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:04:11,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:04:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3103139013452916) internal successors, (1461), 1143 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:11,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1461 transitions. [2021-12-17 17:04:11,768 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1461 transitions. Word has length 116 [2021-12-17 17:04:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:11,768 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1461 transitions. [2021-12-17 17:04:11,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1461 transitions. [2021-12-17 17:04:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:04:11,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:11,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:11,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-12-17 17:04:11,770 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:11,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1590840595, now seen corresponding path program 1 times [2021-12-17 17:04:11,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:11,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003098906] [2021-12-17 17:04:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:11,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:11,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:11,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003098906] [2021-12-17 17:04:11,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003098906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:11,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:11,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:11,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796081103] [2021-12-17 17:04:11,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:11,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:11,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:11,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:11,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:11,856 INFO L87 Difference]: Start difference. First operand 1144 states and 1461 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:14,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:14,137 INFO L93 Difference]: Finished difference Result 1821 states and 2362 transitions. [2021-12-17 17:04:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:14,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:14,139 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:04:14,139 INFO L226 Difference]: Without dead ends: 1730 [2021-12-17 17:04:14,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:14,140 INFO L933 BasicCegarLoop]: 1040 mSDtfsCounter, 4857 mSDsluCounter, 3658 mSDsCounter, 0 mSdLazyCounter, 3532 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4857 SdHoareTripleChecker+Valid, 4698 SdHoareTripleChecker+Invalid, 3803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 3532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:14,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4857 Valid, 4698 Invalid, 3803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 3532 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-17 17:04:14,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1144. [2021-12-17 17:04:14,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.3094170403587444) internal successors, (1460), 1143 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1460 transitions. [2021-12-17 17:04:14,438 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1460 transitions. Word has length 116 [2021-12-17 17:04:14,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:14,438 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1460 transitions. [2021-12-17 17:04:14,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1460 transitions. [2021-12-17 17:04:14,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:04:14,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:14,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:14,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-12-17 17:04:14,439 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:14,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:14,440 INFO L85 PathProgramCache]: Analyzing trace with hash -791929599, now seen corresponding path program 1 times [2021-12-17 17:04:14,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:14,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438561451] [2021-12-17 17:04:14,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:14,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:14,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:14,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:14,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438561451] [2021-12-17 17:04:14,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438561451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:14,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:14,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:04:14,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894917179] [2021-12-17 17:04:14,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:14,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:04:14,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:14,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:04:14,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:04:14,583 INFO L87 Difference]: Start difference. First operand 1144 states and 1460 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:18,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:18,698 INFO L93 Difference]: Finished difference Result 2502 states and 3308 transitions. [2021-12-17 17:04:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:04:18,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:18,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:18,701 INFO L225 Difference]: With dead ends: 2502 [2021-12-17 17:04:18,701 INFO L226 Difference]: Without dead ends: 2399 [2021-12-17 17:04:18,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:04:18,702 INFO L933 BasicCegarLoop]: 1293 mSDtfsCounter, 8619 mSDsluCounter, 4360 mSDsCounter, 0 mSdLazyCounter, 4179 mSolverCounterSat, 887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8619 SdHoareTripleChecker+Valid, 5653 SdHoareTripleChecker+Invalid, 5066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 887 IncrementalHoareTripleChecker+Valid, 4179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:18,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8619 Valid, 5653 Invalid, 5066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [887 Valid, 4179 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 17:04:18,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2021-12-17 17:04:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 1148. [2021-12-17 17:04:19,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1119 states have (on average 1.3083109919571045) internal successors, (1464), 1147 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:19,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1464 transitions. [2021-12-17 17:04:19,023 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1464 transitions. Word has length 116 [2021-12-17 17:04:19,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:19,023 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 1464 transitions. [2021-12-17 17:04:19,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:19,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1464 transitions. [2021-12-17 17:04:19,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:04:19,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:19,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:19,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-12-17 17:04:19,025 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:19,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:19,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2101398281, now seen corresponding path program 1 times [2021-12-17 17:04:19,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:19,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817631516] [2021-12-17 17:04:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:19,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:19,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:19,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817631516] [2021-12-17 17:04:19,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817631516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:19,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:19,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:19,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835236175] [2021-12-17 17:04:19,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:19,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:19,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:19,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:19,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:19,111 INFO L87 Difference]: Start difference. First operand 1148 states and 1464 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:21,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:21,423 INFO L93 Difference]: Finished difference Result 1822 states and 2362 transitions. [2021-12-17 17:04:21,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:21,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:21,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:21,425 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:04:21,425 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:21,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:21,426 INFO L933 BasicCegarLoop]: 1090 mSDtfsCounter, 6033 mSDsluCounter, 3384 mSDsCounter, 0 mSdLazyCounter, 3414 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6033 SdHoareTripleChecker+Valid, 4474 SdHoareTripleChecker+Invalid, 3750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 3414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:21,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6033 Valid, 4474 Invalid, 3750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 3414 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:21,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:21,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1148. [2021-12-17 17:04:21,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1119 states have (on average 1.3074173369079536) internal successors, (1463), 1147 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1463 transitions. [2021-12-17 17:04:21,740 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1463 transitions. Word has length 116 [2021-12-17 17:04:21,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:21,741 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 1463 transitions. [2021-12-17 17:04:21,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:21,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1463 transitions. [2021-12-17 17:04:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 17:04:21,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:21,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:21,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-12-17 17:04:21,742 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:21,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:21,742 INFO L85 PathProgramCache]: Analyzing trace with hash 835704020, now seen corresponding path program 1 times [2021-12-17 17:04:21,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:21,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059363415] [2021-12-17 17:04:21,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:21,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:21,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:21,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059363415] [2021-12-17 17:04:21,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059363415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:21,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:21,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:21,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811121407] [2021-12-17 17:04:21,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:21,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:21,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:21,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:21,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:21,824 INFO L87 Difference]: Start difference. First operand 1148 states and 1463 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:24,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:24,103 INFO L93 Difference]: Finished difference Result 1825 states and 2364 transitions. [2021-12-17 17:04:24,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:24,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-17 17:04:24,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:24,105 INFO L225 Difference]: With dead ends: 1825 [2021-12-17 17:04:24,106 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:24,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:24,106 INFO L933 BasicCegarLoop]: 1108 mSDtfsCounter, 4926 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4926 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:24,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4926 Valid, 4453 Invalid, 3712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:24,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:24,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1148. [2021-12-17 17:04:24,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1119 states have (on average 1.3065236818588024) internal successors, (1462), 1147 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:24,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1462 transitions. [2021-12-17 17:04:24,389 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1462 transitions. Word has length 116 [2021-12-17 17:04:24,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:24,389 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 1462 transitions. [2021-12-17 17:04:24,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:24,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1462 transitions. [2021-12-17 17:04:24,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:24,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:24,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:24,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-12-17 17:04:24,390 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:24,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:24,391 INFO L85 PathProgramCache]: Analyzing trace with hash -921411320, now seen corresponding path program 1 times [2021-12-17 17:04:24,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:24,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039486076] [2021-12-17 17:04:24,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:24,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:24,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:24,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039486076] [2021-12-17 17:04:24,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039486076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:24,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:24,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:24,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619478764] [2021-12-17 17:04:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:24,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:24,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:24,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:24,468 INFO L87 Difference]: Start difference. First operand 1148 states and 1462 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:26,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:26,729 INFO L93 Difference]: Finished difference Result 1825 states and 2362 transitions. [2021-12-17 17:04:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:26,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:26,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:26,732 INFO L225 Difference]: With dead ends: 1825 [2021-12-17 17:04:26,732 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:26,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:26,732 INFO L933 BasicCegarLoop]: 1112 mSDtfsCounter, 4911 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 4469 SdHoareTripleChecker+Invalid, 3713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:26,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4911 Valid, 4469 Invalid, 3713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:27,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1144. [2021-12-17 17:04:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1115 states have (on average 1.306726457399103) internal successors, (1457), 1143 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1457 transitions. [2021-12-17 17:04:27,035 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1457 transitions. Word has length 117 [2021-12-17 17:04:27,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:27,035 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1457 transitions. [2021-12-17 17:04:27,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:27,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1457 transitions. [2021-12-17 17:04:27,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:27,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:27,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:27,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-12-17 17:04:27,037 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:27,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:27,037 INFO L85 PathProgramCache]: Analyzing trace with hash -221202331, now seen corresponding path program 1 times [2021-12-17 17:04:27,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:27,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7528173] [2021-12-17 17:04:27,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:27,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:27,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:27,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7528173] [2021-12-17 17:04:27,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7528173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:27,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:27,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:27,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142054682] [2021-12-17 17:04:27,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:27,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:27,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:27,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:27,116 INFO L87 Difference]: Start difference. First operand 1144 states and 1457 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:29,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:29,358 INFO L93 Difference]: Finished difference Result 1822 states and 2358 transitions. [2021-12-17 17:04:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:29,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:29,360 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:04:29,360 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:29,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:29,361 INFO L933 BasicCegarLoop]: 1111 mSDtfsCounter, 3427 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3427 SdHoareTripleChecker+Valid, 4472 SdHoareTripleChecker+Invalid, 3620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:29,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3427 Valid, 4472 Invalid, 3620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:29,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1140. [2021-12-17 17:04:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1111 states have (on average 1.306930693069307) internal successors, (1452), 1139 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:29,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1452 transitions. [2021-12-17 17:04:29,661 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1452 transitions. Word has length 117 [2021-12-17 17:04:29,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:29,661 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 1452 transitions. [2021-12-17 17:04:29,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:29,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1452 transitions. [2021-12-17 17:04:29,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:29,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:29,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:29,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-12-17 17:04:29,663 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:29,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:29,663 INFO L85 PathProgramCache]: Analyzing trace with hash -693599533, now seen corresponding path program 1 times [2021-12-17 17:04:29,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:29,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725330520] [2021-12-17 17:04:29,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:29,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:29,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:29,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725330520] [2021-12-17 17:04:29,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725330520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:29,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:29,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:29,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512082443] [2021-12-17 17:04:29,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:29,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:29,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:29,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:29,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:29,752 INFO L87 Difference]: Start difference. First operand 1140 states and 1452 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:32,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:32,003 INFO L93 Difference]: Finished difference Result 1822 states and 2357 transitions. [2021-12-17 17:04:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:32,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:32,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:32,005 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:04:32,005 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:32,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:32,006 INFO L933 BasicCegarLoop]: 1112 mSDtfsCounter, 3423 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 4476 SdHoareTripleChecker+Invalid, 3620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:32,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3423 Valid, 4476 Invalid, 3620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:32,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:32,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1136. [2021-12-17 17:04:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1107 states have (on average 1.3071364046973803) internal successors, (1447), 1135 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1447 transitions. [2021-12-17 17:04:32,306 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1447 transitions. Word has length 117 [2021-12-17 17:04:32,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:32,306 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1447 transitions. [2021-12-17 17:04:32,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:32,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1447 transitions. [2021-12-17 17:04:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:32,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:32,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:32,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-12-17 17:04:32,308 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:32,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:32,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1393591055, now seen corresponding path program 1 times [2021-12-17 17:04:32,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:32,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656556825] [2021-12-17 17:04:32,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:32,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:32,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:32,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656556825] [2021-12-17 17:04:32,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656556825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:32,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:32,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:32,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834458568] [2021-12-17 17:04:32,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:32,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:32,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:32,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:32,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:32,397 INFO L87 Difference]: Start difference. First operand 1136 states and 1447 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:34,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:34,652 INFO L93 Difference]: Finished difference Result 1825 states and 2359 transitions. [2021-12-17 17:04:34,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:34,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:34,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:34,654 INFO L225 Difference]: With dead ends: 1825 [2021-12-17 17:04:34,654 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:34,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:34,654 INFO L933 BasicCegarLoop]: 1118 mSDtfsCounter, 6351 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6351 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 3814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:34,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6351 Valid, 4493 Invalid, 3814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:34,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:34,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1132. [2021-12-17 17:04:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1103 states have (on average 1.3073436083408885) internal successors, (1442), 1131 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:34,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1442 transitions. [2021-12-17 17:04:34,959 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1442 transitions. Word has length 117 [2021-12-17 17:04:34,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:34,959 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1442 transitions. [2021-12-17 17:04:34,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1442 transitions. [2021-12-17 17:04:34,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:34,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:34,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:34,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-12-17 17:04:34,961 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:34,962 INFO L85 PathProgramCache]: Analyzing trace with hash -371024534, now seen corresponding path program 1 times [2021-12-17 17:04:34,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:34,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860457415] [2021-12-17 17:04:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:34,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:35,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:35,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860457415] [2021-12-17 17:04:35,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860457415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:35,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:35,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:35,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214606323] [2021-12-17 17:04:35,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:35,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:35,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:35,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:35,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:35,051 INFO L87 Difference]: Start difference. First operand 1132 states and 1442 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:37,318 INFO L93 Difference]: Finished difference Result 1822 states and 2355 transitions. [2021-12-17 17:04:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:37,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:37,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:37,321 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:04:37,321 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:37,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:37,321 INFO L933 BasicCegarLoop]: 1117 mSDtfsCounter, 3414 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 4496 SdHoareTripleChecker+Invalid, 3620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:37,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3414 Valid, 4496 Invalid, 3620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:37,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:37,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1128. [2021-12-17 17:04:37,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1099 states have (on average 1.3075523202911739) internal successors, (1437), 1127 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1437 transitions. [2021-12-17 17:04:37,623 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1437 transitions. Word has length 117 [2021-12-17 17:04:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:37,623 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1437 transitions. [2021-12-17 17:04:37,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1437 transitions. [2021-12-17 17:04:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:37,625 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:37,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:37,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-12-17 17:04:37,625 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:37,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:37,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2044614931, now seen corresponding path program 1 times [2021-12-17 17:04:37,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:37,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203542782] [2021-12-17 17:04:37,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:37,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:37,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:37,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203542782] [2021-12-17 17:04:37,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203542782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:37,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:37,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:37,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454722891] [2021-12-17 17:04:37,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:37,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:37,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:37,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:37,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:37,711 INFO L87 Difference]: Start difference. First operand 1128 states and 1437 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:40,119 INFO L93 Difference]: Finished difference Result 1821 states and 2353 transitions. [2021-12-17 17:04:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:40,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:40,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:40,121 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:04:40,121 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:40,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:40,122 INFO L933 BasicCegarLoop]: 1050 mSDtfsCounter, 4814 mSDsluCounter, 4128 mSDsCounter, 0 mSdLazyCounter, 3807 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4814 SdHoareTripleChecker+Valid, 5178 SdHoareTripleChecker+Invalid, 4078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 3807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:40,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4814 Valid, 5178 Invalid, 4078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 3807 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:04:40,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:40,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1128. [2021-12-17 17:04:40,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1099 states have (on average 1.3066424021838035) internal successors, (1436), 1127 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1436 transitions. [2021-12-17 17:04:40,430 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1436 transitions. Word has length 117 [2021-12-17 17:04:40,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:40,430 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1436 transitions. [2021-12-17 17:04:40,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:40,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1436 transitions. [2021-12-17 17:04:40,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:40,432 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:40,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:40,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-12-17 17:04:40,432 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:40,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1638898021, now seen corresponding path program 1 times [2021-12-17 17:04:40,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:40,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971401397] [2021-12-17 17:04:40,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:40,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:40,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:40,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:40,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971401397] [2021-12-17 17:04:40,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971401397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:40,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:40,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:40,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332374432] [2021-12-17 17:04:40,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:40,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:40,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:40,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:40,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:40,513 INFO L87 Difference]: Start difference. First operand 1128 states and 1436 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:42,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:42,777 INFO L93 Difference]: Finished difference Result 1822 states and 2353 transitions. [2021-12-17 17:04:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:42,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:42,779 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:04:42,779 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:42,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:42,779 INFO L933 BasicCegarLoop]: 1120 mSDtfsCounter, 4864 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 4509 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:42,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 4509 Invalid, 3709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:43,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1124. [2021-12-17 17:04:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1095 states have (on average 1.3068493150684932) internal successors, (1431), 1123 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:43,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1431 transitions. [2021-12-17 17:04:43,066 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1431 transitions. Word has length 117 [2021-12-17 17:04:43,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:43,066 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1431 transitions. [2021-12-17 17:04:43,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1431 transitions. [2021-12-17 17:04:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:43,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:43,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:43,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-12-17 17:04:43,068 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1634396379, now seen corresponding path program 1 times [2021-12-17 17:04:43,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:43,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26424236] [2021-12-17 17:04:43,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:43,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:43,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:43,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26424236] [2021-12-17 17:04:43,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26424236] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:43,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:43,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:43,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448830603] [2021-12-17 17:04:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:43,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:43,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:43,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:43,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:43,155 INFO L87 Difference]: Start difference. First operand 1124 states and 1431 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:45,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:45,506 INFO L93 Difference]: Finished difference Result 1821 states and 2351 transitions. [2021-12-17 17:04:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:45,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:45,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:45,508 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:04:45,508 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:45,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:45,508 INFO L933 BasicCegarLoop]: 1051 mSDtfsCounter, 4851 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 3509 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4851 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 3509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:45,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4851 Valid, 4753 Invalid, 3781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 3509 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:45,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:45,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1124. [2021-12-17 17:04:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1095 states have (on average 1.3059360730593608) internal successors, (1430), 1123 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:45,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1430 transitions. [2021-12-17 17:04:45,811 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1430 transitions. Word has length 117 [2021-12-17 17:04:45,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:45,811 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1430 transitions. [2021-12-17 17:04:45,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1430 transitions. [2021-12-17 17:04:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:45,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:45,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:45,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-12-17 17:04:45,813 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:45,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:45,813 INFO L85 PathProgramCache]: Analyzing trace with hash -61422100, now seen corresponding path program 1 times [2021-12-17 17:04:45,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:45,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537728884] [2021-12-17 17:04:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:45,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:45,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:45,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:45,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537728884] [2021-12-17 17:04:45,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537728884] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:45,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:45,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:45,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407773153] [2021-12-17 17:04:45,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:45,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:45,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:45,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:45,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:45,890 INFO L87 Difference]: Start difference. First operand 1124 states and 1430 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:48,205 INFO L93 Difference]: Finished difference Result 1820 states and 2349 transitions. [2021-12-17 17:04:48,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:48,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:48,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:48,207 INFO L225 Difference]: With dead ends: 1820 [2021-12-17 17:04:48,207 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:48,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:48,208 INFO L933 BasicCegarLoop]: 1118 mSDtfsCounter, 5436 mSDsluCounter, 3382 mSDsCounter, 0 mSdLazyCounter, 3406 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5436 SdHoareTripleChecker+Valid, 4500 SdHoareTripleChecker+Invalid, 3778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 3406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:48,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5436 Valid, 4500 Invalid, 3778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 3406 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:48,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:48,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1120. [2021-12-17 17:04:48,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1091 states have (on average 1.306141154903758) internal successors, (1425), 1119 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1425 transitions. [2021-12-17 17:04:48,522 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1425 transitions. Word has length 117 [2021-12-17 17:04:48,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:48,522 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 1425 transitions. [2021-12-17 17:04:48,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:48,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1425 transitions. [2021-12-17 17:04:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:48,523 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:48,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:48,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-12-17 17:04:48,524 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:48,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:48,524 INFO L85 PathProgramCache]: Analyzing trace with hash 173970405, now seen corresponding path program 1 times [2021-12-17 17:04:48,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:48,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614160336] [2021-12-17 17:04:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:48,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:48,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:48,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614160336] [2021-12-17 17:04:48,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614160336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:48,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:48,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:48,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811129812] [2021-12-17 17:04:48,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:48,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:48,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:48,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:48,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:48,602 INFO L87 Difference]: Start difference. First operand 1120 states and 1425 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:50,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:50,915 INFO L93 Difference]: Finished difference Result 1822 states and 2350 transitions. [2021-12-17 17:04:50,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:50,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:50,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:50,917 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:04:50,917 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:50,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:50,918 INFO L933 BasicCegarLoop]: 1121 mSDtfsCounter, 3398 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 3395 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3398 SdHoareTripleChecker+Valid, 4513 SdHoareTripleChecker+Invalid, 3599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:50,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3398 Valid, 4513 Invalid, 3599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:50,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1116. [2021-12-17 17:04:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1087 states have (on average 1.3063477460901565) internal successors, (1420), 1115 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1420 transitions. [2021-12-17 17:04:51,224 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1420 transitions. Word has length 117 [2021-12-17 17:04:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:51,225 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1420 transitions. [2021-12-17 17:04:51,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1420 transitions. [2021-12-17 17:04:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:51,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:51,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:51,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-12-17 17:04:51,226 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:51,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:51,226 INFO L85 PathProgramCache]: Analyzing trace with hash 972429592, now seen corresponding path program 1 times [2021-12-17 17:04:51,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:51,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016541196] [2021-12-17 17:04:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:51,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:51,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:51,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016541196] [2021-12-17 17:04:51,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016541196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:51,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:51,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:51,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196612373] [2021-12-17 17:04:51,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:51,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:51,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:51,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:51,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:51,304 INFO L87 Difference]: Start difference. First operand 1116 states and 1420 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:53,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:53,736 INFO L93 Difference]: Finished difference Result 1820 states and 2347 transitions. [2021-12-17 17:04:53,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:53,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:53,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:53,738 INFO L225 Difference]: With dead ends: 1820 [2021-12-17 17:04:53,738 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:53,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:53,739 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 6302 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 3402 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6302 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 3809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 3402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:53,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6302 Valid, 4504 Invalid, 3809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 3402 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:04:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1112. [2021-12-17 17:04:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.306555863342567) internal successors, (1415), 1111 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:54,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1415 transitions. [2021-12-17 17:04:54,065 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1415 transitions. Word has length 117 [2021-12-17 17:04:54,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:54,065 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1415 transitions. [2021-12-17 17:04:54,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:54,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1415 transitions. [2021-12-17 17:04:54,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:54,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:54,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:54,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-12-17 17:04:54,066 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:54,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:54,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1865070642, now seen corresponding path program 1 times [2021-12-17 17:04:54,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:54,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838893484] [2021-12-17 17:04:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:54,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:54,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:54,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838893484] [2021-12-17 17:04:54,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838893484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:54,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:54,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:54,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170238491] [2021-12-17 17:04:54,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:54,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:54,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:54,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:54,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:54,176 INFO L87 Difference]: Start difference. First operand 1112 states and 1415 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:56,840 INFO L93 Difference]: Finished difference Result 1821 states and 2347 transitions. [2021-12-17 17:04:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:56,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:56,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:56,842 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:04:56,842 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:56,842 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 [2021-12-17 17:04:56,843 INFO L933 BasicCegarLoop]: 1118 mSDtfsCounter, 5944 mSDsluCounter, 4328 mSDsCounter, 0 mSdLazyCounter, 3983 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5944 SdHoareTripleChecker+Valid, 5446 SdHoareTripleChecker+Invalid, 4319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 3983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:56,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5944 Valid, 5446 Invalid, 4319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 3983 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 17:04:56,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:04:57,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1112. [2021-12-17 17:04:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3056325023084026) internal successors, (1414), 1111 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:57,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1414 transitions. [2021-12-17 17:04:57,155 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1414 transitions. Word has length 117 [2021-12-17 17:04:57,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:04:57,156 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1414 transitions. [2021-12-17 17:04:57,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:57,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1414 transitions. [2021-12-17 17:04:57,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:04:57,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:04:57,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:04:57,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-12-17 17:04:57,157 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:04:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:04:57,157 INFO L85 PathProgramCache]: Analyzing trace with hash 59959807, now seen corresponding path program 1 times [2021-12-17 17:04:57,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:04:57,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143546387] [2021-12-17 17:04:57,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:04:57,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:04:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:04:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:04:57,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:04:57,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143546387] [2021-12-17 17:04:57,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143546387] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:04:57,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:04:57,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:04:57,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813461816] [2021-12-17 17:04:57,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:04:57,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:04:57,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:04:57,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:04:57,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:04:57,243 INFO L87 Difference]: Start difference. First operand 1112 states and 1414 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:04:59,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:04:59,722 INFO L93 Difference]: Finished difference Result 1821 states and 2346 transitions. [2021-12-17 17:04:59,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:04:59,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:04:59,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:04:59,724 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:04:59,725 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:04:59,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:04:59,725 INFO L933 BasicCegarLoop]: 1124 mSDtfsCounter, 4665 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 3666 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 4952 SdHoareTripleChecker+Invalid, 3935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 3666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:04:59,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4665 Valid, 4952 Invalid, 3935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 3666 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:04:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:00,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1112. [2021-12-17 17:05:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3047091412742382) internal successors, (1413), 1111 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:00,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1413 transitions. [2021-12-17 17:05:00,038 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1413 transitions. Word has length 117 [2021-12-17 17:05:00,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:00,038 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1413 transitions. [2021-12-17 17:05:00,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:00,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1413 transitions. [2021-12-17 17:05:00,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:00,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:00,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:00,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-12-17 17:05:00,039 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:00,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:00,040 INFO L85 PathProgramCache]: Analyzing trace with hash -79582431, now seen corresponding path program 1 times [2021-12-17 17:05:00,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:00,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594167721] [2021-12-17 17:05:00,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:00,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:00,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:00,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594167721] [2021-12-17 17:05:00,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594167721] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:00,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:00,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:00,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621448865] [2021-12-17 17:05:00,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:00,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:00,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:00,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:00,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:00,147 INFO L87 Difference]: Start difference. First operand 1112 states and 1413 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:02,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:02,733 INFO L93 Difference]: Finished difference Result 1821 states and 2344 transitions. [2021-12-17 17:05:02,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:02,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:02,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:02,736 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:05:02,736 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:05:02,737 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 [2021-12-17 17:05:02,737 INFO L933 BasicCegarLoop]: 1051 mSDtfsCounter, 6054 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 3785 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6054 SdHoareTripleChecker+Valid, 5177 SdHoareTripleChecker+Invalid, 4123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:02,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6054 Valid, 5177 Invalid, 4123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3785 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:05:02,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1112. [2021-12-17 17:05:03,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.3037857802400739) internal successors, (1412), 1111 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1412 transitions. [2021-12-17 17:05:03,062 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1412 transitions. Word has length 117 [2021-12-17 17:05:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:03,063 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1412 transitions. [2021-12-17 17:05:03,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:03,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1412 transitions. [2021-12-17 17:05:03,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:03,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:03,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:03,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-12-17 17:05:03,064 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:03,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:03,064 INFO L85 PathProgramCache]: Analyzing trace with hash -862811927, now seen corresponding path program 1 times [2021-12-17 17:05:03,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:03,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029406173] [2021-12-17 17:05:03,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:03,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:03,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:03,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:03,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029406173] [2021-12-17 17:05:03,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029406173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:03,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:03,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:03,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51022945] [2021-12-17 17:05:03,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:03,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:03,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:03,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:03,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:03,153 INFO L87 Difference]: Start difference. First operand 1112 states and 1412 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:05,530 INFO L93 Difference]: Finished difference Result 1739 states and 2220 transitions. [2021-12-17 17:05:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:05,531 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:05,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:05,533 INFO L225 Difference]: With dead ends: 1739 [2021-12-17 17:05:05,533 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:05:05,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:05,534 INFO L933 BasicCegarLoop]: 1124 mSDtfsCounter, 4832 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 3374 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 3374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:05,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4832 Valid, 4519 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 3374 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:05:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1108. [2021-12-17 17:05:05,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1079 states have (on average 1.303985171455051) internal successors, (1407), 1107 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1407 transitions. [2021-12-17 17:05:05,867 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1407 transitions. Word has length 117 [2021-12-17 17:05:05,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:05,867 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1407 transitions. [2021-12-17 17:05:05,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:05,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1407 transitions. [2021-12-17 17:05:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:05,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:05,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:05,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-12-17 17:05:05,868 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash -161711224, now seen corresponding path program 1 times [2021-12-17 17:05:05,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:05,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695309242] [2021-12-17 17:05:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:05,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:05,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:05,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:05,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695309242] [2021-12-17 17:05:05,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695309242] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:05,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:05,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:05,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768259464] [2021-12-17 17:05:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:05,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:05,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:05,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:05,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:05,950 INFO L87 Difference]: Start difference. First operand 1108 states and 1407 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:08,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:08,332 INFO L93 Difference]: Finished difference Result 1822 states and 2343 transitions. [2021-12-17 17:05:08,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:08,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:08,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:08,334 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:05:08,334 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:05:08,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:08,334 INFO L933 BasicCegarLoop]: 1125 mSDtfsCounter, 4821 mSDsluCounter, 3404 mSDsCounter, 0 mSdLazyCounter, 3374 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4821 SdHoareTripleChecker+Valid, 4529 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 3374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:08,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4821 Valid, 4529 Invalid, 3680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 3374 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:05:08,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:08,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1104. [2021-12-17 17:05:08,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1075 states have (on average 1.304186046511628) internal successors, (1402), 1103 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:08,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1402 transitions. [2021-12-17 17:05:08,651 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1402 transitions. Word has length 117 [2021-12-17 17:05:08,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:08,651 INFO L470 AbstractCegarLoop]: Abstraction has 1104 states and 1402 transitions. [2021-12-17 17:05:08,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:08,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1402 transitions. [2021-12-17 17:05:08,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:08,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:08,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:08,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-12-17 17:05:08,652 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:08,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:08,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1943317838, now seen corresponding path program 1 times [2021-12-17 17:05:08,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:08,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076830149] [2021-12-17 17:05:08,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:08,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:08,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:08,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:08,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076830149] [2021-12-17 17:05:08,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076830149] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:08,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:08,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:08,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914265094] [2021-12-17 17:05:08,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:08,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:08,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:08,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:08,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:08,743 INFO L87 Difference]: Start difference. First operand 1104 states and 1402 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:11,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:11,219 INFO L93 Difference]: Finished difference Result 1739 states and 2218 transitions. [2021-12-17 17:05:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:11,220 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:11,222 INFO L225 Difference]: With dead ends: 1739 [2021-12-17 17:05:11,222 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:05:11,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:11,222 INFO L933 BasicCegarLoop]: 1128 mSDtfsCounter, 6250 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 3374 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6250 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 3374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:11,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6250 Valid, 4535 Invalid, 3781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 3374 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:05:11,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1100. [2021-12-17 17:05:11,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1071 states have (on average 1.3043884220354809) internal successors, (1397), 1099 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:11,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1397 transitions. [2021-12-17 17:05:11,538 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1397 transitions. Word has length 117 [2021-12-17 17:05:11,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:11,538 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1397 transitions. [2021-12-17 17:05:11,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1397 transitions. [2021-12-17 17:05:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:11,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:11,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:11,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-12-17 17:05:11,540 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:11,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:11,540 INFO L85 PathProgramCache]: Analyzing trace with hash -634108426, now seen corresponding path program 1 times [2021-12-17 17:05:11,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:11,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994695817] [2021-12-17 17:05:11,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:11,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:11,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:11,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994695817] [2021-12-17 17:05:11,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994695817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:11,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:11,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:11,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238177574] [2021-12-17 17:05:11,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:11,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:11,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:11,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:11,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:11,620 INFO L87 Difference]: Start difference. First operand 1100 states and 1397 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:14,008 INFO L93 Difference]: Finished difference Result 1822 states and 2341 transitions. [2021-12-17 17:05:14,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:14,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:14,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:14,010 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:05:14,010 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:05:14,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:14,010 INFO L933 BasicCegarLoop]: 1129 mSDtfsCounter, 3372 mSDsluCounter, 3416 mSDsCounter, 0 mSdLazyCounter, 3374 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3372 SdHoareTripleChecker+Valid, 4545 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:14,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3372 Valid, 4545 Invalid, 3578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3374 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:05:14,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:14,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1096. [2021-12-17 17:05:14,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1067 states have (on average 1.3045923149015932) internal successors, (1392), 1095 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1392 transitions. [2021-12-17 17:05:14,334 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1392 transitions. Word has length 117 [2021-12-17 17:05:14,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:14,334 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1392 transitions. [2021-12-17 17:05:14,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1392 transitions. [2021-12-17 17:05:14,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:14,335 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:14,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:14,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-12-17 17:05:14,335 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1334991662, now seen corresponding path program 1 times [2021-12-17 17:05:14,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:14,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72124781] [2021-12-17 17:05:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:14,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:14,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:14,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72124781] [2021-12-17 17:05:14,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72124781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:14,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:14,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:14,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791505141] [2021-12-17 17:05:14,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:14,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:14,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:14,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:14,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:14,414 INFO L87 Difference]: Start difference. First operand 1096 states and 1392 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:16,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:16,772 INFO L93 Difference]: Finished difference Result 1739 states and 2216 transitions. [2021-12-17 17:05:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:16,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:16,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:16,774 INFO L225 Difference]: With dead ends: 1739 [2021-12-17 17:05:16,774 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:05:16,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:16,775 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 3368 mSDsluCounter, 3419 mSDsCounter, 0 mSdLazyCounter, 3374 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3368 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:16,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3368 Valid, 4551 Invalid, 3578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3374 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:05:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1092. [2021-12-17 17:05:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1063 states have (on average 1.3047977422389463) internal successors, (1387), 1091 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1387 transitions. [2021-12-17 17:05:17,092 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1387 transitions. Word has length 117 [2021-12-17 17:05:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:17,092 INFO L470 AbstractCegarLoop]: Abstraction has 1092 states and 1387 transitions. [2021-12-17 17:05:17,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1387 transitions. [2021-12-17 17:05:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:17,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:17,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:17,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-12-17 17:05:17,094 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash -311533427, now seen corresponding path program 1 times [2021-12-17 17:05:17,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:17,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977723042] [2021-12-17 17:05:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:17,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:17,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:17,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977723042] [2021-12-17 17:05:17,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977723042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:17,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:17,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:17,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838354994] [2021-12-17 17:05:17,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:17,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:17,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:17,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:17,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:17,173 INFO L87 Difference]: Start difference. First operand 1092 states and 1387 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:19,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:19,577 INFO L93 Difference]: Finished difference Result 1822 states and 2339 transitions. [2021-12-17 17:05:19,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:19,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:19,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:19,579 INFO L225 Difference]: With dead ends: 1822 [2021-12-17 17:05:19,579 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:05:19,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:19,579 INFO L933 BasicCegarLoop]: 1133 mSDtfsCounter, 3362 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 3374 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:19,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3362 Valid, 4561 Invalid, 3578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3374 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 17:05:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:19,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1088. [2021-12-17 17:05:19,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.3050047214353164) internal successors, (1382), 1087 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:19,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1382 transitions. [2021-12-17 17:05:19,898 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1382 transitions. Word has length 117 [2021-12-17 17:05:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:19,898 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1382 transitions. [2021-12-17 17:05:19,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:19,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1382 transitions. [2021-12-17 17:05:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:19,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:19,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:19,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-12-17 17:05:19,900 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:19,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:19,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1013742518, now seen corresponding path program 1 times [2021-12-17 17:05:19,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:19,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469225] [2021-12-17 17:05:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:19,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:19,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:19,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469225] [2021-12-17 17:05:19,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:19,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:19,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:19,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036561431] [2021-12-17 17:05:19,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:19,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:19,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:19,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:19,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:19,992 INFO L87 Difference]: Start difference. First operand 1088 states and 1382 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:22,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:22,583 INFO L93 Difference]: Finished difference Result 1821 states and 2337 transitions. [2021-12-17 17:05:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:22,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:22,585 INFO L225 Difference]: With dead ends: 1821 [2021-12-17 17:05:22,585 INFO L226 Difference]: Without dead ends: 1734 [2021-12-17 17:05:22,586 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 [2021-12-17 17:05:22,586 INFO L933 BasicCegarLoop]: 1063 mSDtfsCounter, 6008 mSDsluCounter, 4162 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6008 SdHoareTripleChecker+Valid, 5225 SdHoareTripleChecker+Invalid, 4119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:22,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6008 Valid, 5225 Invalid, 4119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 3781 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-17 17:05:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-12-17 17:05:22,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1088. [2021-12-17 17:05:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1059 states have (on average 1.304060434372049) internal successors, (1381), 1087 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:22,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1381 transitions. [2021-12-17 17:05:22,903 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1381 transitions. Word has length 117 [2021-12-17 17:05:22,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:22,903 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1381 transitions. [2021-12-17 17:05:22,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:22,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1381 transitions. [2021-12-17 17:05:22,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 17:05:22,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:22,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:22,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-12-17 17:05:22,904 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:22,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1028644646, now seen corresponding path program 1 times [2021-12-17 17:05:22,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:22,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490835731] [2021-12-17 17:05:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:22,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:22,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:22,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490835731] [2021-12-17 17:05:22,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490835731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:22,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:22,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:05:22,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737057347] [2021-12-17 17:05:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:22,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:05:22,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:05:22,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:05:22,997 INFO L87 Difference]: Start difference. First operand 1088 states and 1381 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:25,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:25,458 INFO L93 Difference]: Finished difference Result 1889 states and 2437 transitions. [2021-12-17 17:05:25,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:05:25,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-17 17:05:25,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:25,460 INFO L225 Difference]: With dead ends: 1889 [2021-12-17 17:05:25,460 INFO L226 Difference]: Without dead ends: 1786 [2021-12-17 17:05:25,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:05:25,461 INFO L933 BasicCegarLoop]: 1307 mSDtfsCounter, 4420 mSDsluCounter, 4042 mSDsCounter, 0 mSdLazyCounter, 3804 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4420 SdHoareTripleChecker+Valid, 5349 SdHoareTripleChecker+Invalid, 3959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 3804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:25,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4420 Valid, 5349 Invalid, 3959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 3804 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 17:05:25,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-17 17:05:25,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1084. [2021-12-17 17:05:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1055 states have (on average 1.3042654028436018) internal successors, (1376), 1083 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1376 transitions. [2021-12-17 17:05:25,795 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1376 transitions. Word has length 117 [2021-12-17 17:05:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:25,796 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 1376 transitions. [2021-12-17 17:05:25,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1376 transitions. [2021-12-17 17:05:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:05:25,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:25,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:25,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-12-17 17:05:25,797 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:25,798 INFO L85 PathProgramCache]: Analyzing trace with hash 4626704, now seen corresponding path program 1 times [2021-12-17 17:05:25,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:25,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671463819] [2021-12-17 17:05:25,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:25,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:26,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:26,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671463819] [2021-12-17 17:05:26,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671463819] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:26,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:26,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 17:05:26,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778533986] [2021-12-17 17:05:26,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:26,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 17:05:26,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:26,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 17:05:26,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-17 17:05:26,031 INFO L87 Difference]: Start difference. First operand 1084 states and 1376 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:27,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:27,848 INFO L93 Difference]: Finished difference Result 2224 states and 2781 transitions. [2021-12-17 17:05:27,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 17:05:27,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:05:27,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:27,850 INFO L225 Difference]: With dead ends: 2224 [2021-12-17 17:05:27,850 INFO L226 Difference]: Without dead ends: 1726 [2021-12-17 17:05:27,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-12-17 17:05:27,851 INFO L933 BasicCegarLoop]: 1725 mSDtfsCounter, 4744 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4744 SdHoareTripleChecker+Valid, 5279 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:27,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4744 Valid, 5279 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 17:05:27,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2021-12-17 17:05:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 672. [2021-12-17 17:05:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 650 states have (on average 1.2861538461538462) internal successors, (836), 671 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:28,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 836 transitions. [2021-12-17 17:05:28,095 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 836 transitions. Word has length 118 [2021-12-17 17:05:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:28,095 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 836 transitions. [2021-12-17 17:05:28,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 836 transitions. [2021-12-17 17:05:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:05:28,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:28,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:28,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-12-17 17:05:28,096 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:28,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:28,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1271205090, now seen corresponding path program 1 times [2021-12-17 17:05:28,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:28,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463758209] [2021-12-17 17:05:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:28,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:29,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:29,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463758209] [2021-12-17 17:05:29,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463758209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:29,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:29,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-12-17 17:05:29,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914615640] [2021-12-17 17:05:29,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:29,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-17 17:05:29,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:29,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-17 17:05:29,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2021-12-17 17:05:29,929 INFO L87 Difference]: Start difference. First operand 672 states and 836 transitions. Second operand has 39 states, 39 states have (on average 3.0256410256410255) internal successors, (118), 39 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:51,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:51,987 INFO L93 Difference]: Finished difference Result 3486 states and 4419 transitions. [2021-12-17 17:05:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-17 17:05:51,988 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.0256410256410255) internal successors, (118), 39 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:05:51,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:51,991 INFO L225 Difference]: With dead ends: 3486 [2021-12-17 17:05:51,991 INFO L226 Difference]: Without dead ends: 3397 [2021-12-17 17:05:51,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=847, Invalid=4853, Unknown=0, NotChecked=0, Total=5700 [2021-12-17 17:05:51,992 INFO L933 BasicCegarLoop]: 3276 mSDtfsCounter, 11722 mSDsluCounter, 53601 mSDsCounter, 0 mSdLazyCounter, 31647 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11722 SdHoareTripleChecker+Valid, 56877 SdHoareTripleChecker+Invalid, 32006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 31647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:51,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11722 Valid, 56877 Invalid, 32006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [359 Valid, 31647 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2021-12-17 17:05:51,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2021-12-17 17:05:52,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 700. [2021-12-17 17:05:52,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 678 states have (on average 1.2861356932153392) internal successors, (872), 699 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:52,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 872 transitions. [2021-12-17 17:05:52,269 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 872 transitions. Word has length 118 [2021-12-17 17:05:52,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:52,269 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 872 transitions. [2021-12-17 17:05:52,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.0256410256410255) internal successors, (118), 39 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:52,269 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 872 transitions. [2021-12-17 17:05:52,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:05:52,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:52,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:52,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-12-17 17:05:52,270 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:52,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash -660138639, now seen corresponding path program 1 times [2021-12-17 17:05:52,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:52,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300534546] [2021-12-17 17:05:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:52,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:52,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:52,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300534546] [2021-12-17 17:05:52,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300534546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:52,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:52,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:05:52,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74848105] [2021-12-17 17:05:52,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:52,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:05:52,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:52,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:05:52,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:05:52,551 INFO L87 Difference]: Start difference. First operand 700 states and 872 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:55,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:55,033 INFO L93 Difference]: Finished difference Result 2186 states and 2881 transitions. [2021-12-17 17:05:55,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 17:05:55,034 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:05:55,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:55,036 INFO L225 Difference]: With dead ends: 2186 [2021-12-17 17:05:55,036 INFO L226 Difference]: Without dead ends: 2038 [2021-12-17 17:05:55,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 17:05:55,036 INFO L933 BasicCegarLoop]: 2026 mSDtfsCounter, 4558 mSDsluCounter, 12335 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4558 SdHoareTripleChecker+Valid, 14361 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:55,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4558 Valid, 14361 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 17:05:55,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2021-12-17 17:05:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 623. [2021-12-17 17:05:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 602 states have (on average 1.2840531561461794) internal successors, (773), 622 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 773 transitions. [2021-12-17 17:05:55,283 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 773 transitions. Word has length 118 [2021-12-17 17:05:55,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:55,283 INFO L470 AbstractCegarLoop]: Abstraction has 623 states and 773 transitions. [2021-12-17 17:05:55,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 773 transitions. [2021-12-17 17:05:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:05:55,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:55,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:55,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-12-17 17:05:55,284 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:55,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1821206989, now seen corresponding path program 1 times [2021-12-17 17:05:55,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:55,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517271113] [2021-12-17 17:05:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:55,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:55,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:55,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:55,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517271113] [2021-12-17 17:05:55,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517271113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:55,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:55,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-17 17:05:55,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024274747] [2021-12-17 17:05:55,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:55,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-17 17:05:55,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:55,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-17 17:05:55,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-12-17 17:05:55,728 INFO L87 Difference]: Start difference. First operand 623 states and 773 transitions. Second operand has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 17 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:58,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:05:58,195 INFO L93 Difference]: Finished difference Result 1840 states and 2386 transitions. [2021-12-17 17:05:58,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-17 17:05:58,195 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 17 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:05:58,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:05:58,197 INFO L225 Difference]: With dead ends: 1840 [2021-12-17 17:05:58,197 INFO L226 Difference]: Without dead ends: 1586 [2021-12-17 17:05:58,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2021-12-17 17:05:58,198 INFO L933 BasicCegarLoop]: 1803 mSDtfsCounter, 4423 mSDsluCounter, 13402 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4423 SdHoareTripleChecker+Valid, 15205 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:05:58,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4423 Valid, 15205 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 17:05:58,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2021-12-17 17:05:58,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 526. [2021-12-17 17:05:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 506 states have (on average 1.274703557312253) internal successors, (645), 525 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 645 transitions. [2021-12-17 17:05:58,421 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 645 transitions. Word has length 118 [2021-12-17 17:05:58,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:05:58,421 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 645 transitions. [2021-12-17 17:05:58,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 17 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:05:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 645 transitions. [2021-12-17 17:05:58,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:05:58,422 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:05:58,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:05:58,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-12-17 17:05:58,422 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:05:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:05:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash -251301061, now seen corresponding path program 1 times [2021-12-17 17:05:58,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:05:58,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316950255] [2021-12-17 17:05:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:05:58,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:05:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:05:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:05:58,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:05:58,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316950255] [2021-12-17 17:05:58,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316950255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:05:58,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:05:58,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:05:58,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301577485] [2021-12-17 17:05:58,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:05:58,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:05:58,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:05:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:05:58,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:05:58,745 INFO L87 Difference]: Start difference. First operand 526 states and 645 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:01,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:01,694 INFO L93 Difference]: Finished difference Result 1988 states and 2645 transitions. [2021-12-17 17:06:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 17:06:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:06:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:01,697 INFO L225 Difference]: With dead ends: 1988 [2021-12-17 17:06:01,697 INFO L226 Difference]: Without dead ends: 1886 [2021-12-17 17:06:01,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 17:06:01,697 INFO L933 BasicCegarLoop]: 1503 mSDtfsCounter, 4079 mSDsluCounter, 8672 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 10175 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:01,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4079 Valid, 10175 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 17:06:01,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2021-12-17 17:06:01,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 510. [2021-12-17 17:06:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 492 states have (on average 1.2723577235772359) internal successors, (626), 509 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 626 transitions. [2021-12-17 17:06:01,931 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 626 transitions. Word has length 118 [2021-12-17 17:06:01,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:01,931 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 626 transitions. [2021-12-17 17:06:01,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:01,931 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 626 transitions. [2021-12-17 17:06:01,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:06:01,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:01,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:01,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-12-17 17:06:01,932 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:01,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:01,932 INFO L85 PathProgramCache]: Analyzing trace with hash 290232464, now seen corresponding path program 1 times [2021-12-17 17:06:01,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:01,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345464917] [2021-12-17 17:06:01,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:01,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:02,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:02,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345464917] [2021-12-17 17:06:02,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345464917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:02,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:02,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:06:02,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115511265] [2021-12-17 17:06:02,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:02,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:06:02,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:02,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:06:02,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:06:02,199 INFO L87 Difference]: Start difference. First operand 510 states and 626 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:03,633 INFO L93 Difference]: Finished difference Result 846 states and 1058 transitions. [2021-12-17 17:06:03,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:06:03,633 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:06:03,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:03,634 INFO L225 Difference]: With dead ends: 846 [2021-12-17 17:06:03,634 INFO L226 Difference]: Without dead ends: 756 [2021-12-17 17:06:03,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:06:03,635 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 2847 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 3386 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:03,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2847 Valid, 3386 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 17:06:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-12-17 17:06:03,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 506. [2021-12-17 17:06:03,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 489 states have (on average 1.2699386503067485) internal successors, (621), 505 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:03,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 621 transitions. [2021-12-17 17:06:03,863 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 621 transitions. Word has length 118 [2021-12-17 17:06:03,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:03,863 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 621 transitions. [2021-12-17 17:06:03,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:03,869 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 621 transitions. [2021-12-17 17:06:03,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:06:03,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:03,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:03,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-12-17 17:06:03,870 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:03,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:03,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1490284684, now seen corresponding path program 1 times [2021-12-17 17:06:03,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:03,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282206918] [2021-12-17 17:06:03,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:03,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:05,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:05,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:05,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282206918] [2021-12-17 17:06:05,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282206918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:05,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:05,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-12-17 17:06:05,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840929710] [2021-12-17 17:06:05,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:05,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-12-17 17:06:05,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:05,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-12-17 17:06:05,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2021-12-17 17:06:05,511 INFO L87 Difference]: Start difference. First operand 506 states and 621 transitions. Second operand has 38 states, 38 states have (on average 3.1052631578947367) internal successors, (118), 38 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:22,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:22,434 INFO L93 Difference]: Finished difference Result 2739 states and 3498 transitions. [2021-12-17 17:06:22,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-17 17:06:22,435 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.1052631578947367) internal successors, (118), 38 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:06:22,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:22,438 INFO L225 Difference]: With dead ends: 2739 [2021-12-17 17:06:22,438 INFO L226 Difference]: Without dead ends: 2646 [2021-12-17 17:06:22,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=718, Invalid=4252, Unknown=0, NotChecked=0, Total=4970 [2021-12-17 17:06:22,438 INFO L933 BasicCegarLoop]: 2275 mSDtfsCounter, 8245 mSDsluCounter, 43576 mSDsCounter, 0 mSdLazyCounter, 23913 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8245 SdHoareTripleChecker+Valid, 45851 SdHoareTripleChecker+Invalid, 24111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 23913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:22,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8245 Valid, 45851 Invalid, 24111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [198 Valid, 23913 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2021-12-17 17:06:22,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2021-12-17 17:06:22,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 535. [2021-12-17 17:06:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 518 states have (on average 1.2683397683397684) internal successors, (657), 534 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:22,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 657 transitions. [2021-12-17 17:06:22,698 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 657 transitions. Word has length 118 [2021-12-17 17:06:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:22,698 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 657 transitions. [2021-12-17 17:06:22,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1052631578947367) internal successors, (118), 38 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 657 transitions. [2021-12-17 17:06:22,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:06:22,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:22,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:22,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-12-17 17:06:22,699 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:22,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:22,699 INFO L85 PathProgramCache]: Analyzing trace with hash 999397077, now seen corresponding path program 1 times [2021-12-17 17:06:22,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:22,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334161665] [2021-12-17 17:06:22,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:22,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:22,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:22,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334161665] [2021-12-17 17:06:22,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334161665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:22,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:22,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:06:22,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006236796] [2021-12-17 17:06:22,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:23,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:06:23,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:23,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:06:23,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:06:23,000 INFO L87 Difference]: Start difference. First operand 535 states and 657 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:25,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:25,384 INFO L93 Difference]: Finished difference Result 1711 states and 2293 transitions. [2021-12-17 17:06:25,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 17:06:25,385 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:06:25,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:25,387 INFO L225 Difference]: With dead ends: 1711 [2021-12-17 17:06:25,387 INFO L226 Difference]: Without dead ends: 1562 [2021-12-17 17:06:25,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-17 17:06:25,387 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 3843 mSDsluCounter, 7478 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3843 SdHoareTripleChecker+Valid, 8807 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:25,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3843 Valid, 8807 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 17:06:25,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2021-12-17 17:06:25,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 472. [2021-12-17 17:06:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 459 states have (on average 1.261437908496732) internal successors, (579), 471 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 579 transitions. [2021-12-17 17:06:25,644 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 579 transitions. Word has length 118 [2021-12-17 17:06:25,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:25,644 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 579 transitions. [2021-12-17 17:06:25,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:25,644 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 579 transitions. [2021-12-17 17:06:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:06:25,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:25,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:25,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-12-17 17:06:25,645 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:25,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:25,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1803671671, now seen corresponding path program 1 times [2021-12-17 17:06:25,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:25,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325460040] [2021-12-17 17:06:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:25,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:25,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:25,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325460040] [2021-12-17 17:06:25,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325460040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:25,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:25,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:25,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616976304] [2021-12-17 17:06:25,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:25,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:25,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:25,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:25,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:25,749 INFO L87 Difference]: Start difference. First operand 472 states and 579 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:27,244 INFO L93 Difference]: Finished difference Result 938 states and 1218 transitions. [2021-12-17 17:06:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:27,244 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:06:27,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:27,245 INFO L225 Difference]: With dead ends: 938 [2021-12-17 17:06:27,245 INFO L226 Difference]: Without dead ends: 851 [2021-12-17 17:06:27,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-17 17:06:27,246 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 2117 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:27,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2117 Valid, 2112 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 17:06:27,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-12-17 17:06:27,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 472. [2021-12-17 17:06:27,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 459 states have (on average 1.2592592592592593) internal successors, (578), 471 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:27,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 578 transitions. [2021-12-17 17:06:27,478 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 578 transitions. Word has length 118 [2021-12-17 17:06:27,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:27,478 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 578 transitions. [2021-12-17 17:06:27,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:27,478 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 578 transitions. [2021-12-17 17:06:27,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:06:27,479 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:27,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:27,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-12-17 17:06:27,479 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:27,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:27,479 INFO L85 PathProgramCache]: Analyzing trace with hash -190717183, now seen corresponding path program 1 times [2021-12-17 17:06:27,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:27,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312813126] [2021-12-17 17:06:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:27,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:27,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:27,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312813126] [2021-12-17 17:06:27,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312813126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:27,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:27,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:06:27,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827893745] [2021-12-17 17:06:27,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:27,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:06:27,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:27,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:06:27,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:06:27,815 INFO L87 Difference]: Start difference. First operand 472 states and 578 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:30,406 INFO L93 Difference]: Finished difference Result 1648 states and 2213 transitions. [2021-12-17 17:06:30,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 17:06:30,407 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:06:30,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:30,408 INFO L225 Difference]: With dead ends: 1648 [2021-12-17 17:06:30,408 INFO L226 Difference]: Without dead ends: 1513 [2021-12-17 17:06:30,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-12-17 17:06:30,409 INFO L933 BasicCegarLoop]: 1149 mSDtfsCounter, 3526 mSDsluCounter, 7087 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3526 SdHoareTripleChecker+Valid, 8236 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:30,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3526 Valid, 8236 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 17:06:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2021-12-17 17:06:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 423. [2021-12-17 17:06:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 411 states have (on average 1.2506082725060828) internal successors, (514), 422 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:30,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 514 transitions. [2021-12-17 17:06:30,642 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 514 transitions. Word has length 118 [2021-12-17 17:06:30,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:30,642 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 514 transitions. [2021-12-17 17:06:30,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:30,642 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 514 transitions. [2021-12-17 17:06:30,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 17:06:30,642 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:30,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:30,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-12-17 17:06:30,643 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:30,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2069027664, now seen corresponding path program 1 times [2021-12-17 17:06:30,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:30,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443957422] [2021-12-17 17:06:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:30,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:30,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:30,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443957422] [2021-12-17 17:06:30,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443957422] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:30,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:30,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:06:30,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482236329] [2021-12-17 17:06:30,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:30,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:06:30,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:30,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:06:30,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:06:30,910 INFO L87 Difference]: Start difference. First operand 423 states and 514 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:32,577 INFO L93 Difference]: Finished difference Result 1143 states and 1512 transitions. [2021-12-17 17:06:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:06:32,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 17:06:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:32,579 INFO L225 Difference]: With dead ends: 1143 [2021-12-17 17:06:32,579 INFO L226 Difference]: Without dead ends: 988 [2021-12-17 17:06:32,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:06:32,579 INFO L933 BasicCegarLoop]: 953 mSDtfsCounter, 3092 mSDsluCounter, 4330 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3092 SdHoareTripleChecker+Valid, 5283 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:32,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3092 Valid, 5283 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:32,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2021-12-17 17:06:32,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 354. [2021-12-17 17:06:32,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 346 states have (on average 1.239884393063584) internal successors, (429), 353 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 429 transitions. [2021-12-17 17:06:32,781 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 429 transitions. Word has length 118 [2021-12-17 17:06:32,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:32,782 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 429 transitions. [2021-12-17 17:06:32,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:32,782 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 429 transitions. [2021-12-17 17:06:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:06:32,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:32,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:32,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-12-17 17:06:32,782 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:32,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:32,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1619413152, now seen corresponding path program 1 times [2021-12-17 17:06:32,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:32,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600100384] [2021-12-17 17:06:32,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:32,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:33,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:33,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600100384] [2021-12-17 17:06:33,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600100384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:33,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:33,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:06:33,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657571159] [2021-12-17 17:06:33,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:33,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:06:33,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:33,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:06:33,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:06:33,065 INFO L87 Difference]: Start difference. First operand 354 states and 429 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:34,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:34,364 INFO L93 Difference]: Finished difference Result 859 states and 1110 transitions. [2021-12-17 17:06:34,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:06:34,365 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-17 17:06:34,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:34,366 INFO L225 Difference]: With dead ends: 859 [2021-12-17 17:06:34,366 INFO L226 Difference]: Without dead ends: 758 [2021-12-17 17:06:34,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-12-17 17:06:34,366 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 2402 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 4137 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:34,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2402 Valid, 4137 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:34,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-12-17 17:06:34,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 314. [2021-12-17 17:06:34,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 307 states have (on average 1.234527687296417) internal successors, (379), 313 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:34,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 379 transitions. [2021-12-17 17:06:34,567 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 379 transitions. Word has length 119 [2021-12-17 17:06:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:34,567 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 379 transitions. [2021-12-17 17:06:34,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 379 transitions. [2021-12-17 17:06:34,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:06:34,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:34,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:34,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-12-17 17:06:34,568 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:34,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:34,568 INFO L85 PathProgramCache]: Analyzing trace with hash -57478120, now seen corresponding path program 1 times [2021-12-17 17:06:34,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:34,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364376511] [2021-12-17 17:06:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:34,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:34,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:34,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364376511] [2021-12-17 17:06:34,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364376511] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:34,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:34,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:06:34,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222557145] [2021-12-17 17:06:34,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:34,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:06:34,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:34,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:06:34,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:06:34,813 INFO L87 Difference]: Start difference. First operand 314 states and 379 transitions. Second operand has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:35,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:35,691 INFO L93 Difference]: Finished difference Result 476 states and 585 transitions. [2021-12-17 17:06:35,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:06:35,691 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-17 17:06:35,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:35,692 INFO L225 Difference]: With dead ends: 476 [2021-12-17 17:06:35,692 INFO L226 Difference]: Without dead ends: 472 [2021-12-17 17:06:35,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:06:35,693 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 1785 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:35,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1785 Valid, 1850 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-12-17 17:06:35,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 310. [2021-12-17 17:06:35,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 304 states have (on average 1.2335526315789473) internal successors, (375), 309 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:35,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 375 transitions. [2021-12-17 17:06:35,888 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 375 transitions. Word has length 119 [2021-12-17 17:06:35,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:35,888 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 375 transitions. [2021-12-17 17:06:35,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:35,889 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 375 transitions. [2021-12-17 17:06:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:06:35,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:35,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:35,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-12-17 17:06:35,889 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:35,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:35,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1837995268, now seen corresponding path program 1 times [2021-12-17 17:06:35,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:35,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39459062] [2021-12-17 17:06:35,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:35,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:36,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:36,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39459062] [2021-12-17 17:06:36,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39459062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:36,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:36,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:06:36,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382849381] [2021-12-17 17:06:36,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:36,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:06:36,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:36,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:06:36,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:06:36,173 INFO L87 Difference]: Start difference. First operand 310 states and 375 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:37,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:37,636 INFO L93 Difference]: Finished difference Result 792 states and 1032 transitions. [2021-12-17 17:06:37,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 17:06:37,636 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-17 17:06:37,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:37,637 INFO L225 Difference]: With dead ends: 792 [2021-12-17 17:06:37,637 INFO L226 Difference]: Without dead ends: 695 [2021-12-17 17:06:37,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-17 17:06:37,638 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 2019 mSDsluCounter, 2762 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:37,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2019 Valid, 3268 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:37,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2021-12-17 17:06:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 299. [2021-12-17 17:06:37,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.2312925170068028) internal successors, (362), 298 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 362 transitions. [2021-12-17 17:06:37,846 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 362 transitions. Word has length 119 [2021-12-17 17:06:37,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:37,846 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 362 transitions. [2021-12-17 17:06:37,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:37,847 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 362 transitions. [2021-12-17 17:06:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:06:37,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:37,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:37,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-12-17 17:06:37,847 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:37,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:37,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2009249280, now seen corresponding path program 1 times [2021-12-17 17:06:37,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:37,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290017709] [2021-12-17 17:06:37,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:37,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:38,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:38,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290017709] [2021-12-17 17:06:38,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290017709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:38,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:38,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-17 17:06:38,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625510248] [2021-12-17 17:06:38,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:38,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-17 17:06:38,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:38,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-17 17:06:38,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-17 17:06:38,103 INFO L87 Difference]: Start difference. First operand 299 states and 362 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:39,650 INFO L93 Difference]: Finished difference Result 808 states and 1055 transitions. [2021-12-17 17:06:39,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-17 17:06:39,650 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-17 17:06:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:39,651 INFO L225 Difference]: With dead ends: 808 [2021-12-17 17:06:39,651 INFO L226 Difference]: Without dead ends: 698 [2021-12-17 17:06:39,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-17 17:06:39,652 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 1571 mSDsluCounter, 5144 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:39,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 5964 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:39,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2021-12-17 17:06:39,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 275. [2021-12-17 17:06:39,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 271 states have (on average 1.2250922509225093) internal successors, (332), 274 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 332 transitions. [2021-12-17 17:06:39,860 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 332 transitions. Word has length 119 [2021-12-17 17:06:39,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:39,860 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 332 transitions. [2021-12-17 17:06:39,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 332 transitions. [2021-12-17 17:06:39,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:06:39,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:39,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:39,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-12-17 17:06:39,861 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:39,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:39,861 INFO L85 PathProgramCache]: Analyzing trace with hash 376909280, now seen corresponding path program 1 times [2021-12-17 17:06:39,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:39,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11120463] [2021-12-17 17:06:39,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:39,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:40,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:40,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11120463] [2021-12-17 17:06:40,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11120463] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:40,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:40,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 17:06:40,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541239111] [2021-12-17 17:06:40,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:40,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:06:40,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:40,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:06:40,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:06:40,029 INFO L87 Difference]: Start difference. First operand 275 states and 332 transitions. Second operand has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:42,868 INFO L93 Difference]: Finished difference Result 1212 states and 1663 transitions. [2021-12-17 17:06:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-17 17:06:42,868 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-17 17:06:42,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:42,870 INFO L225 Difference]: With dead ends: 1212 [2021-12-17 17:06:42,870 INFO L226 Difference]: Without dead ends: 1108 [2021-12-17 17:06:42,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:06:42,870 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 5463 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5463 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:42,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5463 Valid, 2019 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 17:06:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2021-12-17 17:06:43,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 279. [2021-12-17 17:06:43,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 275 states have (on average 1.221818181818182) internal successors, (336), 278 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 336 transitions. [2021-12-17 17:06:43,080 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 336 transitions. Word has length 119 [2021-12-17 17:06:43,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:43,080 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 336 transitions. [2021-12-17 17:06:43,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:43,080 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 336 transitions. [2021-12-17 17:06:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 17:06:43,080 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:43,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:43,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-12-17 17:06:43,081 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:43,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1122782851, now seen corresponding path program 1 times [2021-12-17 17:06:43,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:43,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949030555] [2021-12-17 17:06:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:43,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:43,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:43,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:43,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949030555] [2021-12-17 17:06:43,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949030555] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:43,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:43,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:43,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811826010] [2021-12-17 17:06:43,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:43,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:43,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:43,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:43,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:43,168 INFO L87 Difference]: Start difference. First operand 279 states and 336 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:43,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:43,952 INFO L93 Difference]: Finished difference Result 421 states and 521 transitions. [2021-12-17 17:06:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 17:06:43,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-17 17:06:43,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:43,953 INFO L225 Difference]: With dead ends: 421 [2021-12-17 17:06:43,953 INFO L226 Difference]: Without dead ends: 414 [2021-12-17 17:06:43,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2021-12-17 17:06:43,954 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 1181 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:43,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1181 Valid, 1056 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:43,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-17 17:06:44,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 279. [2021-12-17 17:06:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 275 states have (on average 1.2181818181818183) internal successors, (335), 278 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 335 transitions. [2021-12-17 17:06:44,163 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 335 transitions. Word has length 119 [2021-12-17 17:06:44,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:44,163 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 335 transitions. [2021-12-17 17:06:44,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 335 transitions. [2021-12-17 17:06:44,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 17:06:44,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:44,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:44,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-12-17 17:06:44,164 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:44,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:44,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1066309765, now seen corresponding path program 1 times [2021-12-17 17:06:44,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:44,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145417908] [2021-12-17 17:06:44,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:44,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:44,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:44,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145417908] [2021-12-17 17:06:44,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145417908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:44,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:44,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:44,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244814829] [2021-12-17 17:06:44,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:44,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:44,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:44,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:44,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:44,256 INFO L87 Difference]: Start difference. First operand 279 states and 335 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:45,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:45,074 INFO L93 Difference]: Finished difference Result 421 states and 519 transitions. [2021-12-17 17:06:45,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 17:06:45,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-12-17 17:06:45,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:45,076 INFO L225 Difference]: With dead ends: 421 [2021-12-17 17:06:45,076 INFO L226 Difference]: Without dead ends: 414 [2021-12-17 17:06:45,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2021-12-17 17:06:45,076 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 1177 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:45,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 1056 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-17 17:06:45,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 279. [2021-12-17 17:06:45,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 275 states have (on average 1.2145454545454546) internal successors, (334), 278 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:45,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 334 transitions. [2021-12-17 17:06:45,309 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 334 transitions. Word has length 120 [2021-12-17 17:06:45,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:45,309 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 334 transitions. [2021-12-17 17:06:45,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:45,309 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 334 transitions. [2021-12-17 17:06:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 17:06:45,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:45,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:45,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-12-17 17:06:45,310 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:45,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1080403264, now seen corresponding path program 1 times [2021-12-17 17:06:45,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:45,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813997961] [2021-12-17 17:06:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:45,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:45,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:45,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813997961] [2021-12-17 17:06:45,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813997961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:45,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:45,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 17:06:45,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262485186] [2021-12-17 17:06:45,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:45,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:06:45,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:45,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:06:45,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:06:45,410 INFO L87 Difference]: Start difference. First operand 279 states and 334 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:46,252 INFO L93 Difference]: Finished difference Result 512 states and 653 transitions. [2021-12-17 17:06:46,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:06:46,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-12-17 17:06:46,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:46,253 INFO L225 Difference]: With dead ends: 512 [2021-12-17 17:06:46,253 INFO L226 Difference]: Without dead ends: 408 [2021-12-17 17:06:46,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-12-17 17:06:46,253 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 1161 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:46,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 1022 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:46,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-12-17 17:06:46,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 275. [2021-12-17 17:06:46,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 271 states have (on average 1.2140221402214022) internal successors, (329), 274 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:46,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 329 transitions. [2021-12-17 17:06:46,444 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 329 transitions. Word has length 120 [2021-12-17 17:06:46,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:46,444 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 329 transitions. [2021-12-17 17:06:46,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:46,444 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 329 transitions. [2021-12-17 17:06:46,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 17:06:46,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:46,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:46,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-12-17 17:06:46,445 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:46,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1102062771, now seen corresponding path program 1 times [2021-12-17 17:06:46,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:46,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539806984] [2021-12-17 17:06:46,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:46,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:46,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:46,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:46,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539806984] [2021-12-17 17:06:46,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539806984] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:46,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:46,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:06:46,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196700315] [2021-12-17 17:06:46,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:46,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:06:46,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:46,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:06:46,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:06:46,723 INFO L87 Difference]: Start difference. First operand 275 states and 329 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:48,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:06:48,174 INFO L93 Difference]: Finished difference Result 588 states and 765 transitions. [2021-12-17 17:06:48,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:06:48,174 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-17 17:06:48,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:06:48,175 INFO L225 Difference]: With dead ends: 588 [2021-12-17 17:06:48,175 INFO L226 Difference]: Without dead ends: 582 [2021-12-17 17:06:48,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:06:48,176 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 1732 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 3631 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 17:06:48,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1732 Valid, 3631 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 17:06:48,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2021-12-17 17:06:48,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 269. [2021-12-17 17:06:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 266 states have (on average 1.2142857142857142) internal successors, (323), 268 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 323 transitions. [2021-12-17 17:06:48,390 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 323 transitions. Word has length 121 [2021-12-17 17:06:48,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:06:48,391 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 323 transitions. [2021-12-17 17:06:48,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:06:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 323 transitions. [2021-12-17 17:06:48,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 17:06:48,391 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:06:48,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:06:48,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-12-17 17:06:48,391 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:06:48,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:06:48,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1921370349, now seen corresponding path program 1 times [2021-12-17 17:06:48,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:06:48,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218749715] [2021-12-17 17:06:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:06:48,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:06:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:06:49,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:06:49,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:06:49,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218749715] [2021-12-17 17:06:49,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218749715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:06:49,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:06:49,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-12-17 17:06:49,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955805137] [2021-12-17 17:06:49,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:06:49,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-17 17:06:49,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:06:49,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-17 17:06:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1184, Unknown=0, NotChecked=0, Total=1260 [2021-12-17 17:06:49,570 INFO L87 Difference]: Start difference. First operand 269 states and 323 transitions. Second operand has 36 states, 36 states have (on average 3.361111111111111) internal successors, (121), 36 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:00,646 INFO L93 Difference]: Finished difference Result 1303 states and 1681 transitions. [2021-12-17 17:07:00,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-17 17:07:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.361111111111111) internal successors, (121), 36 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-17 17:07:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:00,648 INFO L225 Difference]: With dead ends: 1303 [2021-12-17 17:07:00,648 INFO L226 Difference]: Without dead ends: 1295 [2021-12-17 17:07:00,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=606, Invalid=3950, Unknown=0, NotChecked=0, Total=4556 [2021-12-17 17:07:00,648 INFO L933 BasicCegarLoop]: 1208 mSDtfsCounter, 4066 mSDsluCounter, 23809 mSDsCounter, 0 mSdLazyCounter, 13038 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4066 SdHoareTripleChecker+Valid, 25017 SdHoareTripleChecker+Invalid, 13134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 13038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:00,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4066 Valid, 25017 Invalid, 13134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 13038 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-12-17 17:07:00,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2021-12-17 17:07:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 298. [2021-12-17 17:07:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 295 states have (on average 1.2135593220338983) internal successors, (358), 297 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 358 transitions. [2021-12-17 17:07:00,886 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 358 transitions. Word has length 121 [2021-12-17 17:07:00,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:00,886 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 358 transitions. [2021-12-17 17:07:00,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.361111111111111) internal successors, (121), 36 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 358 transitions. [2021-12-17 17:07:00,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 17:07:00,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:00,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:00,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-12-17 17:07:00,887 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:00,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:00,887 INFO L85 PathProgramCache]: Analyzing trace with hash 937254503, now seen corresponding path program 1 times [2021-12-17 17:07:00,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:00,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065693135] [2021-12-17 17:07:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:00,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:01,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:01,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:01,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065693135] [2021-12-17 17:07:01,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065693135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:01,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:01,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-17 17:07:01,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749604055] [2021-12-17 17:07:01,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:01,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-17 17:07:01,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:01,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-17 17:07:01,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-12-17 17:07:01,348 INFO L87 Difference]: Start difference. First operand 298 states and 358 transitions. Second operand has 17 states, 17 states have (on average 7.176470588235294) internal successors, (122), 17 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:03,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:03,255 INFO L93 Difference]: Finished difference Result 592 states and 744 transitions. [2021-12-17 17:07:03,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-17 17:07:03,256 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.176470588235294) internal successors, (122), 17 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-17 17:07:03,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:03,256 INFO L225 Difference]: With dead ends: 592 [2021-12-17 17:07:03,256 INFO L226 Difference]: Without dead ends: 573 [2021-12-17 17:07:03,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 17:07:03,257 INFO L933 BasicCegarLoop]: 606 mSDtfsCounter, 1798 mSDsluCounter, 5415 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1798 SdHoareTripleChecker+Valid, 6021 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:03,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1798 Valid, 6021 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 17:07:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-12-17 17:07:03,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 269. [2021-12-17 17:07:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 266 states have (on average 1.2105263157894737) internal successors, (322), 268 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 322 transitions. [2021-12-17 17:07:03,471 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 322 transitions. Word has length 122 [2021-12-17 17:07:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:03,472 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 322 transitions. [2021-12-17 17:07:03,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.176470588235294) internal successors, (122), 17 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 322 transitions. [2021-12-17 17:07:03,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 17:07:03,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:03,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:03,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-12-17 17:07:03,472 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:03,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:03,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1105370613, now seen corresponding path program 1 times [2021-12-17 17:07:03,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:03,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396772441] [2021-12-17 17:07:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:03,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:03,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:03,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396772441] [2021-12-17 17:07:03,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396772441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:03,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:03,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:07:03,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011207786] [2021-12-17 17:07:03,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:03,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:07:03,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:03,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:07:03,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:07:03,722 INFO L87 Difference]: Start difference. First operand 269 states and 322 transitions. Second operand has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:05,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:05,166 INFO L93 Difference]: Finished difference Result 698 states and 894 transitions. [2021-12-17 17:07:05,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:07:05,166 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-17 17:07:05,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:05,167 INFO L225 Difference]: With dead ends: 698 [2021-12-17 17:07:05,167 INFO L226 Difference]: Without dead ends: 662 [2021-12-17 17:07:05,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:07:05,167 INFO L933 BasicCegarLoop]: 786 mSDtfsCounter, 1463 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:05,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 3809 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 17:07:05,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-12-17 17:07:05,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 233. [2021-12-17 17:07:05,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 231 states have (on average 1.2207792207792207) internal successors, (282), 232 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 282 transitions. [2021-12-17 17:07:05,368 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 282 transitions. Word has length 122 [2021-12-17 17:07:05,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:05,368 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 282 transitions. [2021-12-17 17:07:05,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 282 transitions. [2021-12-17 17:07:05,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 17:07:05,368 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:05,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:05,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-12-17 17:07:05,368 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:05,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:05,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1848332156, now seen corresponding path program 1 times [2021-12-17 17:07:05,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:05,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989344443] [2021-12-17 17:07:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:05,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:05,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:05,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989344443] [2021-12-17 17:07:05,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989344443] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:05,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:05,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 17:07:05,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513307447] [2021-12-17 17:07:05,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:05,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 17:07:05,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:05,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 17:07:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 17:07:05,625 INFO L87 Difference]: Start difference. First operand 233 states and 282 transitions. Second operand has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:06,857 INFO L93 Difference]: Finished difference Result 554 states and 734 transitions. [2021-12-17 17:07:06,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 17:07:06,858 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-17 17:07:06,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:06,858 INFO L225 Difference]: With dead ends: 554 [2021-12-17 17:07:06,858 INFO L226 Difference]: Without dead ends: 536 [2021-12-17 17:07:06,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-17 17:07:06,859 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 1469 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:06,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 3439 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 17:07:06,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2021-12-17 17:07:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 215. [2021-12-17 17:07:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.2289719626168225) internal successors, (263), 214 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:07,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 263 transitions. [2021-12-17 17:07:07,066 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 263 transitions. Word has length 122 [2021-12-17 17:07:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:07,066 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 263 transitions. [2021-12-17 17:07:07,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 263 transitions. [2021-12-17 17:07:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-17 17:07:07,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:07,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:07,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-12-17 17:07:07,067 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:07,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:07,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1208691579, now seen corresponding path program 1 times [2021-12-17 17:07:07,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:07,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223417100] [2021-12-17 17:07:07,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:07,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:07,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:07,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223417100] [2021-12-17 17:07:07,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223417100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:07,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:07,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:07:07,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128013654] [2021-12-17 17:07:07,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:07,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:07,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:07,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:07,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:07,148 INFO L87 Difference]: Start difference. First operand 215 states and 263 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:10,136 INFO L93 Difference]: Finished difference Result 1419 states and 2027 transitions. [2021-12-17 17:07:10,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 17:07:10,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2021-12-17 17:07:10,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:10,138 INFO L225 Difference]: With dead ends: 1419 [2021-12-17 17:07:10,138 INFO L226 Difference]: Without dead ends: 1333 [2021-12-17 17:07:10,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2021-12-17 17:07:10,138 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 2655 mSDsluCounter, 4132 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:10,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2655 Valid, 4405 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:07:10,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2021-12-17 17:07:10,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 299. [2021-12-17 17:07:10,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.2953020134228188) internal successors, (386), 298 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 386 transitions. [2021-12-17 17:07:10,540 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 386 transitions. Word has length 158 [2021-12-17 17:07:10,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:10,541 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 386 transitions. [2021-12-17 17:07:10,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 386 transitions. [2021-12-17 17:07:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:07:10,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:10,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:10,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-12-17 17:07:10,541 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1614634531, now seen corresponding path program 1 times [2021-12-17 17:07:10,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:10,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669501175] [2021-12-17 17:07:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:10,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:10,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:10,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669501175] [2021-12-17 17:07:10,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669501175] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:10,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:10,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:07:10,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080780339] [2021-12-17 17:07:10,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:10,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:10,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:10,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:10,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:10,622 INFO L87 Difference]: Start difference. First operand 299 states and 386 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:13,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:13,592 INFO L93 Difference]: Finished difference Result 1575 states and 2253 transitions. [2021-12-17 17:07:13,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:07:13,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:07:13,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:13,594 INFO L225 Difference]: With dead ends: 1575 [2021-12-17 17:07:13,595 INFO L226 Difference]: Without dead ends: 1405 [2021-12-17 17:07:13,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:07:13,595 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 2226 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:13,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2226 Valid, 2232 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:07:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2021-12-17 17:07:14,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 467. [2021-12-17 17:07:14,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 466 states have (on average 1.3583690987124464) internal successors, (633), 466 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 633 transitions. [2021-12-17 17:07:14,432 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 633 transitions. Word has length 160 [2021-12-17 17:07:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:14,433 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 633 transitions. [2021-12-17 17:07:14,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 633 transitions. [2021-12-17 17:07:14,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:07:14,434 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:14,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:14,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-12-17 17:07:14,434 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:14,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:14,435 INFO L85 PathProgramCache]: Analyzing trace with hash -471378583, now seen corresponding path program 1 times [2021-12-17 17:07:14,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:14,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164398761] [2021-12-17 17:07:14,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:14,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:14,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:14,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164398761] [2021-12-17 17:07:14,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164398761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:14,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:14,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:07:14,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137657694] [2021-12-17 17:07:14,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:14,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:14,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:14,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:14,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:14,552 INFO L87 Difference]: Start difference. First operand 467 states and 633 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:17,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:17,764 INFO L93 Difference]: Finished difference Result 1743 states and 2500 transitions. [2021-12-17 17:07:17,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:07:17,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:07:17,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:17,766 INFO L225 Difference]: With dead ends: 1743 [2021-12-17 17:07:17,766 INFO L226 Difference]: Without dead ends: 1573 [2021-12-17 17:07:17,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:07:17,767 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 2405 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:17,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 2277 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:07:17,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2021-12-17 17:07:19,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 719. [2021-12-17 17:07:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 718 states have (on average 1.3969359331476323) internal successors, (1003), 718 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1003 transitions. [2021-12-17 17:07:19,014 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1003 transitions. Word has length 160 [2021-12-17 17:07:19,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:19,014 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 1003 transitions. [2021-12-17 17:07:19,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1003 transitions. [2021-12-17 17:07:19,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:07:19,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:19,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:19,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-12-17 17:07:19,015 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:19,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:19,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1328765195, now seen corresponding path program 1 times [2021-12-17 17:07:19,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:19,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582977390] [2021-12-17 17:07:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:19,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:19,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:19,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582977390] [2021-12-17 17:07:19,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582977390] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:19,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:19,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:07:19,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896838344] [2021-12-17 17:07:19,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:19,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:19,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:19,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:19,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:19,111 INFO L87 Difference]: Start difference. First operand 719 states and 1003 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:23,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:23,026 INFO L93 Difference]: Finished difference Result 1911 states and 2747 transitions. [2021-12-17 17:07:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:07:23,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:07:23,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:23,029 INFO L225 Difference]: With dead ends: 1911 [2021-12-17 17:07:23,030 INFO L226 Difference]: Without dead ends: 1741 [2021-12-17 17:07:23,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:07:23,030 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 2648 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:23,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2648 Valid, 2199 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:07:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2021-12-17 17:07:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 887. [2021-12-17 17:07:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.4108352144469527) internal successors, (1250), 886 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1250 transitions. [2021-12-17 17:07:24,807 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1250 transitions. Word has length 160 [2021-12-17 17:07:24,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:24,808 INFO L470 AbstractCegarLoop]: Abstraction has 887 states and 1250 transitions. [2021-12-17 17:07:24,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:24,808 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1250 transitions. [2021-12-17 17:07:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:07:24,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:24,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:24,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-12-17 17:07:24,809 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:24,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 619762876, now seen corresponding path program 1 times [2021-12-17 17:07:24,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:24,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594302248] [2021-12-17 17:07:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:24,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:25,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:25,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594302248] [2021-12-17 17:07:25,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594302248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:25,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:25,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:07:25,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549805777] [2021-12-17 17:07:25,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:25,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:25,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:25,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:25,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:25,018 INFO L87 Difference]: Start difference. First operand 887 states and 1250 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:26,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:26,783 INFO L93 Difference]: Finished difference Result 1647 states and 2364 transitions. [2021-12-17 17:07:26,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:07:26,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:07:26,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:26,784 INFO L225 Difference]: With dead ends: 1647 [2021-12-17 17:07:26,784 INFO L226 Difference]: Without dead ends: 889 [2021-12-17 17:07:26,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-12-17 17:07:26,785 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 1508 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:26,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 988 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:07:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-12-17 17:07:28,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 887. [2021-12-17 17:07:28,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.4051918735891649) internal successors, (1245), 886 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1245 transitions. [2021-12-17 17:07:28,282 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1245 transitions. Word has length 160 [2021-12-17 17:07:28,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:28,283 INFO L470 AbstractCegarLoop]: Abstraction has 887 states and 1245 transitions. [2021-12-17 17:07:28,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1245 transitions. [2021-12-17 17:07:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:07:28,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:28,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:28,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-12-17 17:07:28,284 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:28,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:28,284 INFO L85 PathProgramCache]: Analyzing trace with hash -149530117, now seen corresponding path program 1 times [2021-12-17 17:07:28,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:28,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411167109] [2021-12-17 17:07:28,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:28,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:28,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:28,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:28,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411167109] [2021-12-17 17:07:28,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411167109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:28,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:28,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:07:28,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112734061] [2021-12-17 17:07:28,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:28,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:07:28,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:28,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:07:28,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:07:28,323 INFO L87 Difference]: Start difference. First operand 887 states and 1245 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:31,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:31,139 INFO L93 Difference]: Finished difference Result 2345 states and 3364 transitions. [2021-12-17 17:07:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 17:07:31,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:07:31,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:31,141 INFO L225 Difference]: With dead ends: 2345 [2021-12-17 17:07:31,141 INFO L226 Difference]: Without dead ends: 1587 [2021-12-17 17:07:31,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:07:31,142 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 113 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:31,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 620 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 17:07:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2021-12-17 17:07:33,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1585. [2021-12-17 17:07:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 1.4122474747474747) internal successors, (2237), 1584 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2237 transitions. [2021-12-17 17:07:33,991 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2237 transitions. Word has length 160 [2021-12-17 17:07:33,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:33,992 INFO L470 AbstractCegarLoop]: Abstraction has 1585 states and 2237 transitions. [2021-12-17 17:07:33,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:33,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2237 transitions. [2021-12-17 17:07:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:07:33,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:33,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:33,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-12-17 17:07:33,993 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:33,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:33,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1395475059, now seen corresponding path program 1 times [2021-12-17 17:07:33,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:33,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965697929] [2021-12-17 17:07:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:33,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:34,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:34,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965697929] [2021-12-17 17:07:34,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965697929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:34,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:34,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:07:34,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183771632] [2021-12-17 17:07:34,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:34,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:34,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:34,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:34,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:34,074 INFO L87 Difference]: Start difference. First operand 1585 states and 2237 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:40,904 INFO L93 Difference]: Finished difference Result 3862 states and 5521 transitions. [2021-12-17 17:07:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:07:40,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:07:40,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:40,909 INFO L225 Difference]: With dead ends: 3862 [2021-12-17 17:07:40,909 INFO L226 Difference]: Without dead ends: 3537 [2021-12-17 17:07:40,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:07:40,910 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 2444 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2444 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:40,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2444 Valid, 2256 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:07:40,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2021-12-17 17:07:44,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 1908. [2021-12-17 17:07:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1907 states have (on average 1.4174095437860514) internal successors, (2703), 1907 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:44,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2703 transitions. [2021-12-17 17:07:44,899 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2703 transitions. Word has length 160 [2021-12-17 17:07:44,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:44,899 INFO L470 AbstractCegarLoop]: Abstraction has 1908 states and 2703 transitions. [2021-12-17 17:07:44,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:44,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2703 transitions. [2021-12-17 17:07:44,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:07:44,900 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:44,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:44,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-12-17 17:07:44,900 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:44,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:44,901 INFO L85 PathProgramCache]: Analyzing trace with hash 592349947, now seen corresponding path program 1 times [2021-12-17 17:07:44,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:44,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083956556] [2021-12-17 17:07:44,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:44,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:44,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:44,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:44,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083956556] [2021-12-17 17:07:44,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083956556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:44,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:44,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:07:44,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066266305] [2021-12-17 17:07:44,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:44,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:44,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:44,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:44,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:44,985 INFO L87 Difference]: Start difference. First operand 1908 states and 2703 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:07:52,848 INFO L93 Difference]: Finished difference Result 4185 states and 5987 transitions. [2021-12-17 17:07:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:07:52,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:07:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:07:52,853 INFO L225 Difference]: With dead ends: 4185 [2021-12-17 17:07:52,853 INFO L226 Difference]: Without dead ends: 3860 [2021-12-17 17:07:52,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:07:52,854 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 2220 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:07:52,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2220 Valid, 2421 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:07:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2021-12-17 17:07:57,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 2231. [2021-12-17 17:07:57,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.4210762331838565) internal successors, (3169), 2230 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 3169 transitions. [2021-12-17 17:07:57,197 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 3169 transitions. Word has length 160 [2021-12-17 17:07:57,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:07:57,197 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 3169 transitions. [2021-12-17 17:07:57,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:07:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 3169 transitions. [2021-12-17 17:07:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:07:57,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:07:57,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:07:57,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-12-17 17:07:57,198 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:07:57,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:07:57,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1139731055, now seen corresponding path program 1 times [2021-12-17 17:07:57,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:07:57,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585723114] [2021-12-17 17:07:57,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:07:57,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:07:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:07:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:07:57,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:07:57,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585723114] [2021-12-17 17:07:57,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585723114] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:07:57,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:07:57,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:07:57,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502579537] [2021-12-17 17:07:57,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:07:57,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:07:57,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:07:57,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:07:57,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:07:57,286 INFO L87 Difference]: Start difference. First operand 2231 states and 3169 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:05,384 INFO L93 Difference]: Finished difference Result 4508 states and 6453 transitions. [2021-12-17 17:08:05,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:08:05,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:08:05,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:05,388 INFO L225 Difference]: With dead ends: 4508 [2021-12-17 17:08:05,388 INFO L226 Difference]: Without dead ends: 4183 [2021-12-17 17:08:05,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:08:05,389 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 2199 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:05,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2199 Valid, 2653 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:08:05,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2021-12-17 17:08:10,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 2554. [2021-12-17 17:08:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2553 states have (on average 1.4238151194672934) internal successors, (3635), 2553 states have internal predecessors, (3635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3635 transitions. [2021-12-17 17:08:10,269 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3635 transitions. Word has length 160 [2021-12-17 17:08:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:10,270 INFO L470 AbstractCegarLoop]: Abstraction has 2554 states and 3635 transitions. [2021-12-17 17:08:10,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3635 transitions. [2021-12-17 17:08:10,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-17 17:08:10,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:10,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:10,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-12-17 17:08:10,271 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:08:10,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:10,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1878530077, now seen corresponding path program 1 times [2021-12-17 17:08:10,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:10,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596621903] [2021-12-17 17:08:10,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:10,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:10,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:10,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596621903] [2021-12-17 17:08:10,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596621903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:10,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:10,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 17:08:10,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148777439] [2021-12-17 17:08:10,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:10,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 17:08:10,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:10,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 17:08:10,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 17:08:10,351 INFO L87 Difference]: Start difference. First operand 2554 states and 3635 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:19,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:19,340 INFO L93 Difference]: Finished difference Result 4831 states and 6919 transitions. [2021-12-17 17:08:19,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 17:08:19,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-17 17:08:19,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:19,345 INFO L225 Difference]: With dead ends: 4831 [2021-12-17 17:08:19,345 INFO L226 Difference]: Without dead ends: 4506 [2021-12-17 17:08:19,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 17:08:19,347 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 2234 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2234 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:19,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2234 Valid, 2697 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 17:08:19,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2021-12-17 17:08:25,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 2877. [2021-12-17 17:08:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2876 states have (on average 1.4259388038942977) internal successors, (4101), 2876 states have internal predecessors, (4101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4101 transitions. [2021-12-17 17:08:25,380 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4101 transitions. Word has length 160 [2021-12-17 17:08:25,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:25,380 INFO L470 AbstractCegarLoop]: Abstraction has 2877 states and 4101 transitions. [2021-12-17 17:08:25,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:25,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4101 transitions. [2021-12-17 17:08:25,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-17 17:08:25,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:25,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:25,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-12-17 17:08:25,381 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:08:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1973612621, now seen corresponding path program 1 times [2021-12-17 17:08:25,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:25,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531941543] [2021-12-17 17:08:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:25,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:25,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:25,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531941543] [2021-12-17 17:08:25,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531941543] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:25,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:25,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:08:25,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647243950] [2021-12-17 17:08:25,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:25,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:08:25,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:25,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:08:25,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:08:25,437 INFO L87 Difference]: Start difference. First operand 2877 states and 4101 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:08:34,401 INFO L93 Difference]: Finished difference Result 7183 states and 10277 transitions. [2021-12-17 17:08:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 17:08:34,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-12-17 17:08:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:08:34,406 INFO L225 Difference]: With dead ends: 7183 [2021-12-17 17:08:34,406 INFO L226 Difference]: Without dead ends: 4435 [2021-12-17 17:08:34,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:08:34,408 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 130 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:08:34,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 575 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 17:08:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2021-12-17 17:08:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4297. [2021-12-17 17:08:43,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4297 states, 4296 states have (on average 1.4217877094972067) internal successors, (6108), 4296 states have internal predecessors, (6108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 6108 transitions. [2021-12-17 17:08:43,037 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 6108 transitions. Word has length 161 [2021-12-17 17:08:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:08:43,037 INFO L470 AbstractCegarLoop]: Abstraction has 4297 states and 6108 transitions. [2021-12-17 17:08:43,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:08:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 6108 transitions. [2021-12-17 17:08:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-17 17:08:43,038 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:08:43,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:08:43,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-12-17 17:08:43,038 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:08:43,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:08:43,038 INFO L85 PathProgramCache]: Analyzing trace with hash -725947515, now seen corresponding path program 1 times [2021-12-17 17:08:43,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:08:43,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712600421] [2021-12-17 17:08:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:08:43,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:08:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:08:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:08:43,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:08:43,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712600421] [2021-12-17 17:08:43,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712600421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:08:43,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:08:43,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:08:43,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584517449] [2021-12-17 17:08:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:08:43,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:08:43,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:08:43,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:08:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:08:43,082 INFO L87 Difference]: Start difference. First operand 4297 states and 6108 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:00,415 INFO L93 Difference]: Finished difference Result 12429 states and 17693 transitions. [2021-12-17 17:09:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 17:09:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2021-12-17 17:09:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:00,425 INFO L225 Difference]: With dead ends: 12429 [2021-12-17 17:09:00,425 INFO L226 Difference]: Without dead ends: 8261 [2021-12-17 17:09:00,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:09:00,428 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 123 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:00,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 575 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 17:09:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8261 states. [2021-12-17 17:09:17,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8261 to 8055. [2021-12-17 17:09:17,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8055 states, 8054 states have (on average 1.4173081698534888) internal successors, (11415), 8054 states have internal predecessors, (11415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:17,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8055 states to 8055 states and 11415 transitions. [2021-12-17 17:09:17,563 INFO L78 Accepts]: Start accepts. Automaton has 8055 states and 11415 transitions. Word has length 162 [2021-12-17 17:09:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:09:17,563 INFO L470 AbstractCegarLoop]: Abstraction has 8055 states and 11415 transitions. [2021-12-17 17:09:17,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:17,563 INFO L276 IsEmpty]: Start isEmpty. Operand 8055 states and 11415 transitions. [2021-12-17 17:09:17,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-17 17:09:17,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:09:17,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:09:17,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-12-17 17:09:17,564 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:09:17,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:09:17,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1535977670, now seen corresponding path program 1 times [2021-12-17 17:09:17,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:09:17,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090816223] [2021-12-17 17:09:17,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:09:17,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:09:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:09:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:09:17,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:09:17,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090816223] [2021-12-17 17:09:17,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090816223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:09:17,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:09:17,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:09:17,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112638042] [2021-12-17 17:09:17,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:09:17,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:09:17,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:09:17,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:09:17,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:09:17,621 INFO L87 Difference]: Start difference. First operand 8055 states and 11415 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:09:50,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 17:09:50,936 INFO L93 Difference]: Finished difference Result 23499 states and 33257 transitions. [2021-12-17 17:09:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 17:09:50,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2021-12-17 17:09:50,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 17:09:50,959 INFO L225 Difference]: With dead ends: 23499 [2021-12-17 17:09:50,959 INFO L226 Difference]: Without dead ends: 15573 [2021-12-17 17:09:50,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:09:50,968 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 116 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 17:09:50,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 575 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 17:09:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15573 states. [2021-12-17 17:10:23,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15573 to 15163. [2021-12-17 17:10:23,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15163 states, 15162 states have (on average 1.409180846853977) internal successors, (21366), 15162 states have internal predecessors, (21366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15163 states to 15163 states and 21366 transitions. [2021-12-17 17:10:23,669 INFO L78 Accepts]: Start accepts. Automaton has 15163 states and 21366 transitions. Word has length 163 [2021-12-17 17:10:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 17:10:23,669 INFO L470 AbstractCegarLoop]: Abstraction has 15163 states and 21366 transitions. [2021-12-17 17:10:23,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 17:10:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 15163 states and 21366 transitions. [2021-12-17 17:10:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-17 17:10:23,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 17:10:23,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 17:10:23,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-12-17 17:10:23,671 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-17 17:10:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 17:10:23,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1106817902, now seen corresponding path program 1 times [2021-12-17 17:10:23,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 17:10:23,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318183333] [2021-12-17 17:10:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 17:10:23,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 17:10:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 17:10:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 17:10:23,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 17:10:23,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318183333] [2021-12-17 17:10:23,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318183333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 17:10:23,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 17:10:23,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 17:10:23,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708970173] [2021-12-17 17:10:23,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 17:10:23,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 17:10:23,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 17:10:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 17:10:23,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 17:10:23,732 INFO L87 Difference]: Start difference. First operand 15163 states and 21366 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Killed by 15