./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_floodmax.3.4.ufo.BOUNDED-6.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 5f48d0b4a615a6de52190ef85cf1bf2dbac852c0e9158969f5c060f302d156f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:36:18,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:36:18,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:36:18,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:36:18,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:36:18,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:36:18,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:36:18,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:36:18,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:36:18,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:36:18,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:36:18,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:36:18,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:36:18,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:36:18,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:36:18,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:36:18,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:36:18,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:36:18,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:36:18,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:36:18,921 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:36:18,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:36:18,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:36:18,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:36:18,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:36:18,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:36:18,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:36:18,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:36:18,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:36:18,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:36:18,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:36:18,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:36:18,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:36:18,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:36:18,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:36:18,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:36:18,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:36:18,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:36:18,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:36:18,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:36:18,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:36:18,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:36:18,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:36:18,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:36:18,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:36:18,974 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:36:18,974 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:36:18,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:36:18,975 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:36:18,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:36:18,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:36:18,976 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:36:18,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:36:18,977 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:36:18,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:36:18,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:36:18,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:36:18,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:36:18,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:36:18,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:36:18,978 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:36:18,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:36:18,978 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:36:18,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:36:18,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:36:18,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:36:18,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:36:18,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:36:18,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:36:18,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:36:18,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:36:18,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:36:18,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:36:18,980 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:36:18,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:36:18,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:36:18,981 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f48d0b4a615a6de52190ef85cf1bf2dbac852c0e9158969f5c060f302d156f9 [2022-07-21 05:36:19,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:36:19,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:36:19,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:36:19,272 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:36:19,273 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:36:19,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-07-21 05:36:19,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/603ebd737/37bcc6ea5fbd4ac9968b803999d5e7b8/FLAGb517f89b7 [2022-07-21 05:36:19,796 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:36:19,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-07-21 05:36:19,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/603ebd737/37bcc6ea5fbd4ac9968b803999d5e7b8/FLAGb517f89b7 [2022-07-21 05:36:19,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/603ebd737/37bcc6ea5fbd4ac9968b803999d5e7b8 [2022-07-21 05:36:19,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:36:19,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:36:19,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:36:19,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:36:19,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:36:19,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:36:19" (1/1) ... [2022-07-21 05:36:19,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1b2f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:19, skipping insertion in model container [2022-07-21 05:36:19,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:36:19" (1/1) ... [2022-07-21 05:36:19,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:36:19,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:36:20,153 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13790,13803] [2022-07-21 05:36:20,164 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14437,14450] [2022-07-21 05:36:20,179 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15670,15683] [2022-07-21 05:36:20,191 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16730,16743] [2022-07-21 05:36:20,223 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25121,25134] [2022-07-21 05:36:20,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:36:20,276 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:36:20,347 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13790,13803] [2022-07-21 05:36:20,350 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14437,14450] [2022-07-21 05:36:20,355 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15670,15683] [2022-07-21 05:36:20,360 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16730,16743] [2022-07-21 05:36:20,382 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25121,25134] [2022-07-21 05:36:20,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:36:20,416 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:36:20,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20 WrapperNode [2022-07-21 05:36:20,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:36:20,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:36:20,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:36:20,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:36:20,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,510 INFO L137 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1532 [2022-07-21 05:36:20,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:36:20,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:36:20,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:36:20,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:36:20,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:36:20,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:36:20,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:36:20,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:36:20,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (1/1) ... [2022-07-21 05:36:20,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:36:20,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:36:20,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 05:36:20,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 05:36:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:36:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:36:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:36:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:36:20,751 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:36:20,752 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:36:21,701 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:36:21,710 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:36:21,711 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 05:36:21,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:36:21 BoogieIcfgContainer [2022-07-21 05:36:21,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:36:21,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:36:21,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:36:21,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:36:21,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:36:19" (1/3) ... [2022-07-21 05:36:21,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86e9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:36:21, skipping insertion in model container [2022-07-21 05:36:21,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:36:20" (2/3) ... [2022-07-21 05:36:21,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86e9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:36:21, skipping insertion in model container [2022-07-21 05:36:21,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:36:21" (3/3) ... [2022-07-21 05:36:21,719 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-07-21 05:36:21,729 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:36:21,729 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-07-21 05:36:21,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:36:21,783 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2774ae32, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5f6903b3 [2022-07-21 05:36:21,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-07-21 05:36:21,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 366 states, 360 states have (on average 1.836111111111111) internal successors, (661), 365 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:21,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 05:36:21,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:21,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:21,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:21,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1389049256, now seen corresponding path program 1 times [2022-07-21 05:36:21,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:21,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755312934] [2022-07-21 05:36:21,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:21,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:22,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:22,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:22,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755312934] [2022-07-21 05:36:22,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755312934] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:22,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:22,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:36:22,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500821414] [2022-07-21 05:36:22,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:22,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:36:22,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:22,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:36:22,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:22,201 INFO L87 Difference]: Start difference. First operand has 366 states, 360 states have (on average 1.836111111111111) internal successors, (661), 365 states have internal predecessors, (661), 0 states have call successors, (0), 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 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:22,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:22,341 INFO L93 Difference]: Finished difference Result 661 states and 1183 transitions. [2022-07-21 05:36:22,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:36:22,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-07-21 05:36:22,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:22,353 INFO L225 Difference]: With dead ends: 661 [2022-07-21 05:36:22,353 INFO L226 Difference]: Without dead ends: 524 [2022-07-21 05:36:22,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:22,357 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 377 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:22,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 1173 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:36:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-07-21 05:36:22,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2022-07-21 05:36:22,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 517 states have (on average 1.4777562862669245) internal successors, (764), 521 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:22,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 764 transitions. [2022-07-21 05:36:22,424 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 764 transitions. Word has length 136 [2022-07-21 05:36:22,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:22,425 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 764 transitions. [2022-07-21 05:36:22,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 764 transitions. [2022-07-21 05:36:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 05:36:22,428 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:22,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:22,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:36:22,429 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:22,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1134357785, now seen corresponding path program 1 times [2022-07-21 05:36:22,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:22,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637446213] [2022-07-21 05:36:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:22,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:22,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:22,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:22,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637446213] [2022-07-21 05:36:22,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637446213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:22,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:22,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:36:22,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876198691] [2022-07-21 05:36:22,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:22,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:36:22,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:22,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:36:22,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:22,582 INFO L87 Difference]: Start difference. First operand 522 states and 764 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:22,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:22,768 INFO L93 Difference]: Finished difference Result 1049 states and 1590 transitions. [2022-07-21 05:36:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:36:22,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-07-21 05:36:22,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:22,776 INFO L225 Difference]: With dead ends: 1049 [2022-07-21 05:36:22,781 INFO L226 Difference]: Without dead ends: 858 [2022-07-21 05:36:22,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:22,784 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 298 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:22,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 945 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:36:22,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2022-07-21 05:36:22,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 856. [2022-07-21 05:36:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 851 states have (on average 1.500587544065805) internal successors, (1277), 855 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1277 transitions. [2022-07-21 05:36:22,870 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1277 transitions. Word has length 136 [2022-07-21 05:36:22,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:22,872 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 1277 transitions. [2022-07-21 05:36:22,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:22,872 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1277 transitions. [2022-07-21 05:36:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 05:36:22,880 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:22,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:22,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:36:22,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1133926809, now seen corresponding path program 1 times [2022-07-21 05:36:22,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:22,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827837996] [2022-07-21 05:36:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:22,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:23,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:23,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:23,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827837996] [2022-07-21 05:36:23,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827837996] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:23,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:23,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:36:23,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111881092] [2022-07-21 05:36:23,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:23,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:36:23,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:23,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:36:23,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:36:23,140 INFO L87 Difference]: Start difference. First operand 856 states and 1277 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:23,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:23,283 INFO L93 Difference]: Finished difference Result 2518 states and 3746 transitions. [2022-07-21 05:36:23,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:36:23,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-07-21 05:36:23,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:23,290 INFO L225 Difference]: With dead ends: 2518 [2022-07-21 05:36:23,290 INFO L226 Difference]: Without dead ends: 1671 [2022-07-21 05:36:23,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:23,297 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 1215 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:23,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 1221 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:23,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-07-21 05:36:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1631. [2022-07-21 05:36:23,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1626 states have (on average 1.4883148831488315) internal successors, (2420), 1630 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2420 transitions. [2022-07-21 05:36:23,378 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2420 transitions. Word has length 136 [2022-07-21 05:36:23,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:23,380 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2420 transitions. [2022-07-21 05:36:23,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2420 transitions. [2022-07-21 05:36:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 05:36:23,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:23,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:23,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:36:23,384 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:23,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1978880461, now seen corresponding path program 1 times [2022-07-21 05:36:23,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:23,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511060479] [2022-07-21 05:36:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:23,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:23,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:23,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511060479] [2022-07-21 05:36:23,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511060479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:23,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:23,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:36:23,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896810608] [2022-07-21 05:36:23,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:23,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:36:23,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:23,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:36:23,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:23,440 INFO L87 Difference]: Start difference. First operand 1631 states and 2420 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:23,568 INFO L93 Difference]: Finished difference Result 4855 states and 7198 transitions. [2022-07-21 05:36:23,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:36:23,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-07-21 05:36:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:23,577 INFO L225 Difference]: With dead ends: 4855 [2022-07-21 05:36:23,577 INFO L226 Difference]: Without dead ends: 3252 [2022-07-21 05:36:23,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:23,584 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 509 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:23,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1098 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2022-07-21 05:36:23,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 1633. [2022-07-21 05:36:23,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1628 states have (on average 1.4877149877149878) internal successors, (2422), 1632 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2422 transitions. [2022-07-21 05:36:23,689 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2422 transitions. Word has length 137 [2022-07-21 05:36:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:23,690 INFO L495 AbstractCegarLoop]: Abstraction has 1633 states and 2422 transitions. [2022-07-21 05:36:23,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2422 transitions. [2022-07-21 05:36:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-21 05:36:23,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:23,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:23,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:36:23,693 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:23,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:23,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2041441446, now seen corresponding path program 1 times [2022-07-21 05:36:23,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:23,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282295038] [2022-07-21 05:36:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:23,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:23,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:23,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:23,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282295038] [2022-07-21 05:36:23,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282295038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:23,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:23,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:36:23,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696808883] [2022-07-21 05:36:23,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:23,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:36:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:23,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:36:23,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:36:23,832 INFO L87 Difference]: Start difference. First operand 1633 states and 2422 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:24,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:24,035 INFO L93 Difference]: Finished difference Result 4755 states and 7034 transitions. [2022-07-21 05:36:24,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:36:24,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2022-07-21 05:36:24,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:24,044 INFO L225 Difference]: With dead ends: 4755 [2022-07-21 05:36:24,045 INFO L226 Difference]: Without dead ends: 3152 [2022-07-21 05:36:24,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:24,051 INFO L413 NwaCegarLoop]: 892 mSDtfsCounter, 1023 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:24,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1366 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:24,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3152 states. [2022-07-21 05:36:24,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3152 to 3112. [2022-07-21 05:36:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 3107 states have (on average 1.473125201158674) internal successors, (4577), 3111 states have internal predecessors, (4577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 4577 transitions. [2022-07-21 05:36:24,252 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 4577 transitions. Word has length 138 [2022-07-21 05:36:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:24,252 INFO L495 AbstractCegarLoop]: Abstraction has 3112 states and 4577 transitions. [2022-07-21 05:36:24,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 4577 transitions. [2022-07-21 05:36:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-21 05:36:24,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:24,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:24,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:36:24,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:24,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:24,261 INFO L85 PathProgramCache]: Analyzing trace with hash -413949202, now seen corresponding path program 1 times [2022-07-21 05:36:24,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:24,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101532860] [2022-07-21 05:36:24,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:24,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:24,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:24,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101532860] [2022-07-21 05:36:24,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101532860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:24,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:24,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:36:24,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865383058] [2022-07-21 05:36:24,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:24,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:36:24,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:24,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:36:24,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:24,294 INFO L87 Difference]: Start difference. First operand 3112 states and 4577 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:24,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:24,643 INFO L93 Difference]: Finished difference Result 9260 states and 13611 transitions. [2022-07-21 05:36:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:36:24,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-07-21 05:36:24,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:24,661 INFO L225 Difference]: With dead ends: 9260 [2022-07-21 05:36:24,662 INFO L226 Difference]: Without dead ends: 6192 [2022-07-21 05:36:24,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:24,666 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 495 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:24,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1523 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6192 states. [2022-07-21 05:36:24,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6192 to 3116. [2022-07-21 05:36:24,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3111 states have (on average 1.4725168756027) internal successors, (4581), 3115 states have internal predecessors, (4581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:24,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4581 transitions. [2022-07-21 05:36:24,882 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4581 transitions. Word has length 139 [2022-07-21 05:36:24,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:24,883 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4581 transitions. [2022-07-21 05:36:24,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:24,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4581 transitions. [2022-07-21 05:36:24,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 05:36:24,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:24,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:24,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:36:24,887 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:24,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:24,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1595701127, now seen corresponding path program 1 times [2022-07-21 05:36:24,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:24,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277843585] [2022-07-21 05:36:24,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:24,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:24,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:24,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:24,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277843585] [2022-07-21 05:36:24,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277843585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:24,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:24,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:36:24,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779402354] [2022-07-21 05:36:24,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:24,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:36:24,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:24,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:36:24,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:24,945 INFO L87 Difference]: Start difference. First operand 3116 states and 4581 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:25,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:25,388 INFO L93 Difference]: Finished difference Result 8828 states and 13011 transitions. [2022-07-21 05:36:25,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:36:25,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-07-21 05:36:25,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:25,402 INFO L225 Difference]: With dead ends: 8828 [2022-07-21 05:36:25,403 INFO L226 Difference]: Without dead ends: 6020 [2022-07-21 05:36:25,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:25,406 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 439 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:25,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1448 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2022-07-21 05:36:25,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5980. [2022-07-21 05:36:25,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5980 states, 5975 states have (on average 1.457907949790795) internal successors, (8711), 5979 states have internal predecessors, (8711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5980 states to 5980 states and 8711 transitions. [2022-07-21 05:36:25,797 INFO L78 Accepts]: Start accepts. Automaton has 5980 states and 8711 transitions. Word has length 140 [2022-07-21 05:36:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:25,798 INFO L495 AbstractCegarLoop]: Abstraction has 5980 states and 8711 transitions. [2022-07-21 05:36:25,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:25,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5980 states and 8711 transitions. [2022-07-21 05:36:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 05:36:25,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:25,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:25,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:36:25,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:25,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:25,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1564522710, now seen corresponding path program 1 times [2022-07-21 05:36:25,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:25,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947812321] [2022-07-21 05:36:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:25,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:25,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:25,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947812321] [2022-07-21 05:36:25,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947812321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:25,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:25,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:36:25,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482055427] [2022-07-21 05:36:25,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:25,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:36:25,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:25,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:36:25,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:25,893 INFO L87 Difference]: Start difference. First operand 5980 states and 8711 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:26,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:26,782 INFO L93 Difference]: Finished difference Result 17210 states and 25046 transitions. [2022-07-21 05:36:26,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:36:26,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-07-21 05:36:26,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:26,812 INFO L225 Difference]: With dead ends: 17210 [2022-07-21 05:36:26,812 INFO L226 Difference]: Without dead ends: 11267 [2022-07-21 05:36:26,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:26,824 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 949 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:26,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1794 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:36:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11267 states. [2022-07-21 05:36:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11267 to 11241. [2022-07-21 05:36:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11241 states, 11236 states have (on average 1.439747241011036) internal successors, (16177), 11240 states have internal predecessors, (16177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:27,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11241 states to 11241 states and 16177 transitions. [2022-07-21 05:36:27,580 INFO L78 Accepts]: Start accepts. Automaton has 11241 states and 16177 transitions. Word has length 140 [2022-07-21 05:36:27,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:27,580 INFO L495 AbstractCegarLoop]: Abstraction has 11241 states and 16177 transitions. [2022-07-21 05:36:27,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:27,580 INFO L276 IsEmpty]: Start isEmpty. Operand 11241 states and 16177 transitions. [2022-07-21 05:36:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 05:36:27,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:27,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:27,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:36:27,593 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:27,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:27,594 INFO L85 PathProgramCache]: Analyzing trace with hash 789160347, now seen corresponding path program 1 times [2022-07-21 05:36:27,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:27,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124832019] [2022-07-21 05:36:27,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:27,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:27,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:27,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124832019] [2022-07-21 05:36:27,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124832019] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:27,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:27,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:36:27,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324572318] [2022-07-21 05:36:27,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:27,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:36:27,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:27,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:36:27,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:36:27,703 INFO L87 Difference]: Start difference. First operand 11241 states and 16177 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:28,426 INFO L93 Difference]: Finished difference Result 22765 states and 32649 transitions. [2022-07-21 05:36:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:36:28,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-07-21 05:36:28,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:28,450 INFO L225 Difference]: With dead ends: 22765 [2022-07-21 05:36:28,451 INFO L226 Difference]: Without dead ends: 11641 [2022-07-21 05:36:28,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:28,464 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 1012 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:28,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 1350 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:28,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11641 states. [2022-07-21 05:36:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11641 to 11449. [2022-07-21 05:36:29,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11449 states, 11444 states have (on average 1.4335022719328907) internal successors, (16405), 11448 states have internal predecessors, (16405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11449 states to 11449 states and 16405 transitions. [2022-07-21 05:36:29,448 INFO L78 Accepts]: Start accepts. Automaton has 11449 states and 16405 transitions. Word has length 140 [2022-07-21 05:36:29,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:29,448 INFO L495 AbstractCegarLoop]: Abstraction has 11449 states and 16405 transitions. [2022-07-21 05:36:29,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:29,449 INFO L276 IsEmpty]: Start isEmpty. Operand 11449 states and 16405 transitions. [2022-07-21 05:36:29,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-21 05:36:29,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:29,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:29,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:36:29,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:29,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:29,463 INFO L85 PathProgramCache]: Analyzing trace with hash 342663311, now seen corresponding path program 1 times [2022-07-21 05:36:29,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:29,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265447965] [2022-07-21 05:36:29,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:29,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:29,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:29,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:29,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265447965] [2022-07-21 05:36:29,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265447965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:29,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:29,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:36:29,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580772025] [2022-07-21 05:36:29,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:29,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:36:29,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:29,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:36:29,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:29,495 INFO L87 Difference]: Start difference. First operand 11449 states and 16405 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:30,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:30,821 INFO L93 Difference]: Finished difference Result 33657 states and 48337 transitions. [2022-07-21 05:36:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:36:30,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-07-21 05:36:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:30,867 INFO L225 Difference]: With dead ends: 33657 [2022-07-21 05:36:30,867 INFO L226 Difference]: Without dead ends: 22773 [2022-07-21 05:36:30,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:36:30,883 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 481 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:30,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1509 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:30,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22773 states. [2022-07-21 05:36:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22773 to 11465. [2022-07-21 05:36:31,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11465 states, 11460 states have (on average 1.4328970331588133) internal successors, (16421), 11464 states have internal predecessors, (16421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:31,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11465 states to 11465 states and 16421 transitions. [2022-07-21 05:36:31,820 INFO L78 Accepts]: Start accepts. Automaton has 11465 states and 16421 transitions. Word has length 141 [2022-07-21 05:36:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:31,821 INFO L495 AbstractCegarLoop]: Abstraction has 11465 states and 16421 transitions. [2022-07-21 05:36:31,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:31,821 INFO L276 IsEmpty]: Start isEmpty. Operand 11465 states and 16421 transitions. [2022-07-21 05:36:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 05:36:31,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:31,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:31,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 05:36:31,833 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:31,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:31,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1600293435, now seen corresponding path program 1 times [2022-07-21 05:36:31,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:31,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460312867] [2022-07-21 05:36:31,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:31,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:31,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:31,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:31,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460312867] [2022-07-21 05:36:31,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460312867] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:31,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:31,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:36:31,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899692653] [2022-07-21 05:36:31,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:31,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:36:31,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:31,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:36:31,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:31,940 INFO L87 Difference]: Start difference. First operand 11465 states and 16421 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:33,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:33,722 INFO L93 Difference]: Finished difference Result 31020 states and 44204 transitions. [2022-07-21 05:36:33,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:36:33,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-21 05:36:33,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:33,754 INFO L225 Difference]: With dead ends: 31020 [2022-07-21 05:36:33,755 INFO L226 Difference]: Without dead ends: 19672 [2022-07-21 05:36:33,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:33,771 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 961 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:33,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1814 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:33,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19672 states. [2022-07-21 05:36:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19672 to 19620. [2022-07-21 05:36:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19620 states, 19615 states have (on average 1.4026000509813918) internal successors, (27512), 19619 states have internal predecessors, (27512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19620 states to 19620 states and 27512 transitions. [2022-07-21 05:36:35,314 INFO L78 Accepts]: Start accepts. Automaton has 19620 states and 27512 transitions. Word has length 142 [2022-07-21 05:36:35,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:35,315 INFO L495 AbstractCegarLoop]: Abstraction has 19620 states and 27512 transitions. [2022-07-21 05:36:35,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:35,315 INFO L276 IsEmpty]: Start isEmpty. Operand 19620 states and 27512 transitions. [2022-07-21 05:36:35,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 05:36:35,332 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:35,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:35,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 05:36:35,333 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:35,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:35,334 INFO L85 PathProgramCache]: Analyzing trace with hash 565199964, now seen corresponding path program 1 times [2022-07-21 05:36:35,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:35,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59413725] [2022-07-21 05:36:35,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:35,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:35,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:35,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59413725] [2022-07-21 05:36:35,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59413725] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:35,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:35,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:36:35,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619523890] [2022-07-21 05:36:35,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:35,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:36:35,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:36:35,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:36:35,398 INFO L87 Difference]: Start difference. First operand 19620 states and 27512 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:36,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:36,689 INFO L93 Difference]: Finished difference Result 36383 states and 51043 transitions. [2022-07-21 05:36:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:36:36,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-21 05:36:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:36,717 INFO L225 Difference]: With dead ends: 36383 [2022-07-21 05:36:36,717 INFO L226 Difference]: Without dead ends: 16854 [2022-07-21 05:36:36,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:36,740 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 65 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:36,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1591 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16854 states. [2022-07-21 05:36:37,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16854 to 16854. [2022-07-21 05:36:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16854 states, 16849 states have (on average 1.4035254317763666) internal successors, (23648), 16853 states have internal predecessors, (23648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16854 states to 16854 states and 23648 transitions. [2022-07-21 05:36:38,028 INFO L78 Accepts]: Start accepts. Automaton has 16854 states and 23648 transitions. Word has length 142 [2022-07-21 05:36:38,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:38,028 INFO L495 AbstractCegarLoop]: Abstraction has 16854 states and 23648 transitions. [2022-07-21 05:36:38,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 16854 states and 23648 transitions. [2022-07-21 05:36:38,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-21 05:36:38,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:38,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:38,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 05:36:38,041 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:38,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:38,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1734417187, now seen corresponding path program 1 times [2022-07-21 05:36:38,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:38,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541067796] [2022-07-21 05:36:38,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:38,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:38,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:38,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541067796] [2022-07-21 05:36:38,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541067796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:38,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:38,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:36:38,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378491068] [2022-07-21 05:36:38,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:38,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:36:38,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:38,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:36:38,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:36:38,155 INFO L87 Difference]: Start difference. First operand 16854 states and 23648 transitions. Second operand has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:43,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:43,799 INFO L93 Difference]: Finished difference Result 58721 states and 87936 transitions. [2022-07-21 05:36:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:36:43,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-07-21 05:36:43,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:43,885 INFO L225 Difference]: With dead ends: 58721 [2022-07-21 05:36:43,885 INFO L226 Difference]: Without dead ends: 45414 [2022-07-21 05:36:43,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:36:43,903 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 5328 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5328 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:43,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5328 Valid, 2208 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 05:36:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45414 states. [2022-07-21 05:36:46,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45414 to 29254. [2022-07-21 05:36:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29254 states, 29249 states have (on average 1.464118431399364) internal successors, (42824), 29253 states have internal predecessors, (42824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29254 states to 29254 states and 42824 transitions. [2022-07-21 05:36:46,957 INFO L78 Accepts]: Start accepts. Automaton has 29254 states and 42824 transitions. Word has length 145 [2022-07-21 05:36:46,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:46,957 INFO L495 AbstractCegarLoop]: Abstraction has 29254 states and 42824 transitions. [2022-07-21 05:36:46,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:46,957 INFO L276 IsEmpty]: Start isEmpty. Operand 29254 states and 42824 transitions. [2022-07-21 05:36:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-21 05:36:46,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:46,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:46,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 05:36:46,972 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:46,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:46,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2040052853, now seen corresponding path program 1 times [2022-07-21 05:36:46,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:46,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248559343] [2022-07-21 05:36:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:46,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:47,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:47,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248559343] [2022-07-21 05:36:47,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248559343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:47,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:47,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:36:47,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719611585] [2022-07-21 05:36:47,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:47,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:36:47,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:47,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:36:47,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:36:47,035 INFO L87 Difference]: Start difference. First operand 29254 states and 42824 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:51,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:36:51,899 INFO L93 Difference]: Finished difference Result 72125 states and 105177 transitions. [2022-07-21 05:36:51,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:36:51,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-07-21 05:36:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:36:51,962 INFO L225 Difference]: With dead ends: 72125 [2022-07-21 05:36:51,962 INFO L226 Difference]: Without dead ends: 43186 [2022-07-21 05:36:51,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:36:51,987 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 1048 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:36:51,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 1292 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:36:52,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43186 states. [2022-07-21 05:36:56,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43186 to 43155. [2022-07-21 05:36:56,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43155 states, 43150 states have (on average 1.4321205098493628) internal successors, (61796), 43154 states have internal predecessors, (61796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:56,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43155 states to 43155 states and 61796 transitions. [2022-07-21 05:36:56,974 INFO L78 Accepts]: Start accepts. Automaton has 43155 states and 61796 transitions. Word has length 145 [2022-07-21 05:36:56,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:36:56,974 INFO L495 AbstractCegarLoop]: Abstraction has 43155 states and 61796 transitions. [2022-07-21 05:36:56,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:36:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 43155 states and 61796 transitions. [2022-07-21 05:36:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 05:36:56,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:36:57,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:36:57,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 05:36:57,002 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:36:57,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:36:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash 349950785, now seen corresponding path program 1 times [2022-07-21 05:36:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:36:57,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806608680] [2022-07-21 05:36:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:36:57,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:36:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:36:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:36:57,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:36:57,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806608680] [2022-07-21 05:36:57,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806608680] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:36:57,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:36:57,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:36:57,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640526668] [2022-07-21 05:36:57,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:36:57,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:36:57,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:36:57,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:36:57,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:36:57,066 INFO L87 Difference]: Start difference. First operand 43155 states and 61796 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:37:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:37:01,633 INFO L93 Difference]: Finished difference Result 72445 states and 103842 transitions. [2022-07-21 05:37:01,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:37:01,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2022-07-21 05:37:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:37:01,693 INFO L225 Difference]: With dead ends: 72445 [2022-07-21 05:37:01,693 INFO L226 Difference]: Without dead ends: 38971 [2022-07-21 05:37:01,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:37:01,728 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 53 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:37:01,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1556 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:37:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38971 states. [2022-07-21 05:37:06,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38971 to 38971. [2022-07-21 05:37:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38971 states, 38966 states have (on average 1.4327362315865113) internal successors, (55828), 38970 states have internal predecessors, (55828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:37:06,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38971 states to 38971 states and 55828 transitions. [2022-07-21 05:37:06,263 INFO L78 Accepts]: Start accepts. Automaton has 38971 states and 55828 transitions. Word has length 147 [2022-07-21 05:37:06,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:37:06,264 INFO L495 AbstractCegarLoop]: Abstraction has 38971 states and 55828 transitions. [2022-07-21 05:37:06,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:37:06,264 INFO L276 IsEmpty]: Start isEmpty. Operand 38971 states and 55828 transitions. [2022-07-21 05:37:06,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-21 05:37:06,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:37:06,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:37:06,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 05:37:06,298 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 05:37:06,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:37:06,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1333335920, now seen corresponding path program 1 times [2022-07-21 05:37:06,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:37:06,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088512797] [2022-07-21 05:37:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:37:06,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:37:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:37:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:37:06,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:37:06,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088512797] [2022-07-21 05:37:06,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088512797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:37:06,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:37:06,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:37:06,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227573636] [2022-07-21 05:37:06,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:37:06,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:37:06,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:37:06,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:37:06,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:37:06,383 INFO L87 Difference]: Start difference. First operand 38971 states and 55828 transitions. Second operand has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 8 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:37:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:37:25,126 INFO L93 Difference]: Finished difference Result 153560 states and 228804 transitions. [2022-07-21 05:37:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:37:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 8 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2022-07-21 05:37:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:37:25,467 INFO L225 Difference]: With dead ends: 153560 [2022-07-21 05:37:25,467 INFO L226 Difference]: Without dead ends: 120039 [2022-07-21 05:37:25,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:37:25,521 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 4836 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:37:25,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4836 Valid, 2204 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:37:25,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120039 states.