./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.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 2ebc8d28b42c51bdeaffef49b8259d7ab2c7e002b024bef1fa6cab620a98975e --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 20:20:40,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 20:20:40,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 20:20:40,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 20:20:40,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 20:20:40,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 20:20:40,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 20:20:40,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 20:20:40,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 20:20:40,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 20:20:40,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 20:20:40,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 20:20:40,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 20:20:40,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 20:20:40,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 20:20:40,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 20:20:40,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 20:20:40,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 20:20:40,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 20:20:40,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 20:20:40,654 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 20:20:40,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 20:20:40,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 20:20:40,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 20:20:40,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 20:20:40,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 20:20:40,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 20:20:40,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 20:20:40,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 20:20:40,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 20:20:40,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 20:20:40,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 20:20:40,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 20:20:40,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 20:20:40,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 20:20:40,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 20:20:40,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 20:20:40,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 20:20:40,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 20:20:40,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 20:20:40,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 20:20:40,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 20:20:40,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 20:20:40,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 20:20:40,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 20:20:40,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 20:20:40,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 20:20:40,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 20:20:40,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 20:20:40,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 20:20:40,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 20:20:40,712 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 20:20:40,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 20:20:40,713 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 20:20:40,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 20:20:40,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 20:20:40,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 20:20:40,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 20:20:40,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 20:20:40,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 20:20:40,715 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 20:20:40,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 20:20:40,716 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 20:20:40,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 20:20:40,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 20:20:40,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 20:20:40,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 20:20:40,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:20:40,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 20:20:40,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 20:20:40,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 20:20:40,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 20:20:40,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 20:20:40,718 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 20:20:40,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 20:20:40,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 20:20:40,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ebc8d28b42c51bdeaffef49b8259d7ab2c7e002b024bef1fa6cab620a98975e [2022-07-19 20:20:40,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 20:20:40,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 20:20:40,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 20:20:40,959 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 20:20:40,963 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 20:20:40,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c [2022-07-19 20:20:41,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80c018a1/9119134c1e0b48158493c52f2da7526c/FLAG682e7d538 [2022-07-19 20:20:41,693 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 20:20:41,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c [2022-07-19 20:20:41,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80c018a1/9119134c1e0b48158493c52f2da7526c/FLAG682e7d538 [2022-07-19 20:20:42,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80c018a1/9119134c1e0b48158493c52f2da7526c [2022-07-19 20:20:42,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 20:20:42,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 20:20:42,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 20:20:42,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 20:20:42,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 20:20:42,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:20:42" (1/1) ... [2022-07-19 20:20:42,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5093b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:42, skipping insertion in model container [2022-07-19 20:20:42,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:20:42" (1/1) ... [2022-07-19 20:20:42,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 20:20:42,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 20:20:42,464 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c[15510,15523] [2022-07-19 20:20:42,478 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c[16352,16365] [2022-07-19 20:20:43,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:20:43,163 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 20:20:43,205 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c[15510,15523] [2022-07-19 20:20:43,216 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c[16352,16365] [2022-07-19 20:20:43,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:20:43,614 INFO L208 MainTranslator]: Completed translation [2022-07-19 20:20:43,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43 WrapperNode [2022-07-19 20:20:43,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 20:20:43,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 20:20:43,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 20:20:43,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 20:20:43,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:43,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:43,986 INFO L137 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5147 [2022-07-19 20:20:43,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 20:20:43,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 20:20:43,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 20:20:43,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 20:20:43,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:43,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:44,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:44,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:44,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:44,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:44,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:44,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 20:20:44,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 20:20:44,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 20:20:44,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 20:20:44,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (1/1) ... [2022-07-19 20:20:44,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:20:44,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 20:20:44,476 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) [2022-07-19 20:20:44,501 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 [2022-07-19 20:20:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 20:20:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 20:20:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 20:20:44,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 20:20:44,662 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 20:20:44,681 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 20:20:48,284 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 20:20:48,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 20:20:48,304 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 20:20:48,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:20:48 BoogieIcfgContainer [2022-07-19 20:20:48,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 20:20:48,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 20:20:48,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 20:20:48,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 20:20:48,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:20:42" (1/3) ... [2022-07-19 20:20:48,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bf629d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:20:48, skipping insertion in model container [2022-07-19 20:20:48,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:20:43" (2/3) ... [2022-07-19 20:20:48,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bf629d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:20:48, skipping insertion in model container [2022-07-19 20:20:48,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:20:48" (3/3) ... [2022-07-19 20:20:48,320 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label07.c [2022-07-19 20:20:48,336 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 20:20:48,336 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 20:20:48,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 20:20:48,429 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@215473cb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@66062353 [2022-07-19 20:20:48,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 20:20:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 928 states, 925 states have (on average 1.8983783783783783) internal successors, (1756), 927 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:48,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:20:48,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:48,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:48,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:48,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:48,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1999332245, now seen corresponding path program 1 times [2022-07-19 20:20:48,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:48,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609050379] [2022-07-19 20:20:48,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:48,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:48,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:48,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:48,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609050379] [2022-07-19 20:20:48,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609050379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:48,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:48,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 20:20:48,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196268113] [2022-07-19 20:20:48,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:48,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 20:20:48,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:48,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 20:20:48,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:20:48,630 INFO L87 Difference]: Start difference. First operand has 928 states, 925 states have (on average 1.8983783783783783) internal successors, (1756), 927 states have internal predecessors, (1756), 0 states have call successors, (0), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:52,091 INFO L93 Difference]: Finished difference Result 2563 states and 4924 transitions. [2022-07-19 20:20:52,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 20:20:52,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-19 20:20:52,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:52,113 INFO L225 Difference]: With dead ends: 2563 [2022-07-19 20:20:52,114 INFO L226 Difference]: Without dead ends: 1613 [2022-07-19 20:20:52,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:20:52,125 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1037 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:52,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 288 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-19 20:20:52,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-07-19 20:20:52,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1613. [2022-07-19 20:20:52,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1611 states have (on average 1.860955927995034) internal successors, (2998), 1612 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2998 transitions. [2022-07-19 20:20:52,235 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2998 transitions. Word has length 7 [2022-07-19 20:20:52,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:52,236 INFO L495 AbstractCegarLoop]: Abstraction has 1613 states and 2998 transitions. [2022-07-19 20:20:52,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2998 transitions. [2022-07-19 20:20:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 20:20:52,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:52,238 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] [2022-07-19 20:20:52,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 20:20:52,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:52,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:52,240 INFO L85 PathProgramCache]: Analyzing trace with hash -46774319, now seen corresponding path program 1 times [2022-07-19 20:20:52,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:52,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591154871] [2022-07-19 20:20:52,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:52,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:52,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:52,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:52,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591154871] [2022-07-19 20:20:52,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591154871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:52,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:52,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 20:20:52,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995708133] [2022-07-19 20:20:52,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:52,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 20:20:52,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:52,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 20:20:52,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 20:20:52,319 INFO L87 Difference]: Start difference. First operand 1613 states and 2998 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:52,408 INFO L93 Difference]: Finished difference Result 1679 states and 3100 transitions. [2022-07-19 20:20:52,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 20:20:52,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-07-19 20:20:52,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:52,415 INFO L225 Difference]: With dead ends: 1679 [2022-07-19 20:20:52,416 INFO L226 Difference]: Without dead ends: 1613 [2022-07-19 20:20:52,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 20:20:52,421 INFO L413 NwaCegarLoop]: 1621 mSDtfsCounter, 3 mSDsluCounter, 4820 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:52,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6441 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:20:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-07-19 20:20:52,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1613. [2022-07-19 20:20:52,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1611 states have (on average 1.8361266294227188) internal successors, (2958), 1612 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2958 transitions. [2022-07-19 20:20:52,470 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2958 transitions. Word has length 38 [2022-07-19 20:20:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:52,470 INFO L495 AbstractCegarLoop]: Abstraction has 1613 states and 2958 transitions. [2022-07-19 20:20:52,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2958 transitions. [2022-07-19 20:20:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 20:20:52,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:52,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:52,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 20:20:52,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:52,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:52,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1531755293, now seen corresponding path program 1 times [2022-07-19 20:20:52,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:52,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834696274] [2022-07-19 20:20:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:52,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:52,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:52,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834696274] [2022-07-19 20:20:52,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834696274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:52,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:52,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 20:20:52,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895480624] [2022-07-19 20:20:52,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:52,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 20:20:52,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:52,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 20:20:52,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:20:52,637 INFO L87 Difference]: Start difference. First operand 1613 states and 2958 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:52,672 INFO L93 Difference]: Finished difference Result 1731 states and 3144 transitions. [2022-07-19 20:20:52,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 20:20:52,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-19 20:20:52,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:52,680 INFO L225 Difference]: With dead ends: 1731 [2022-07-19 20:20:52,680 INFO L226 Difference]: Without dead ends: 1669 [2022-07-19 20:20:52,681 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 [2022-07-19 20:20:52,683 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 1523 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:52,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1751 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:20:52,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2022-07-19 20:20:52,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1667. [2022-07-19 20:20:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.8282282282282283) internal successors, (3044), 1666 states have internal predecessors, (3044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 3044 transitions. [2022-07-19 20:20:52,727 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 3044 transitions. Word has length 77 [2022-07-19 20:20:52,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:52,727 INFO L495 AbstractCegarLoop]: Abstraction has 1667 states and 3044 transitions. [2022-07-19 20:20:52,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 3044 transitions. [2022-07-19 20:20:52,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 20:20:52,729 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:52,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:52,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 20:20:52,730 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:52,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash 786172563, now seen corresponding path program 1 times [2022-07-19 20:20:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:52,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076776619] [2022-07-19 20:20:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:52,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:52,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:52,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076776619] [2022-07-19 20:20:52,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076776619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:52,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:52,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 20:20:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61593903] [2022-07-19 20:20:52,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:52,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 20:20:52,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:52,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 20:20:52,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:20:52,873 INFO L87 Difference]: Start difference. First operand 1667 states and 3044 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:52,908 INFO L93 Difference]: Finished difference Result 1887 states and 3392 transitions. [2022-07-19 20:20:52,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 20:20:52,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-19 20:20:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:52,917 INFO L225 Difference]: With dead ends: 1887 [2022-07-19 20:20:52,917 INFO L226 Difference]: Without dead ends: 1771 [2022-07-19 20:20:52,919 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 [2022-07-19 20:20:52,926 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1519 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:52,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1750 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:20:52,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2022-07-19 20:20:52,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1769. [2022-07-19 20:20:52,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1767 states have (on average 1.8138087153367288) internal successors, (3205), 1768 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 3205 transitions. [2022-07-19 20:20:52,977 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 3205 transitions. Word has length 77 [2022-07-19 20:20:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:52,979 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 3205 transitions. [2022-07-19 20:20:52,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:52,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 3205 transitions. [2022-07-19 20:20:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 20:20:52,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:52,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:52,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 20:20:52,983 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:52,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1153858295, now seen corresponding path program 1 times [2022-07-19 20:20:52,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:52,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066813046] [2022-07-19 20:20:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:52,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:53,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:53,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066813046] [2022-07-19 20:20:53,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066813046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:53,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:53,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 20:20:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999338494] [2022-07-19 20:20:53,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:53,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 20:20:53,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:53,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 20:20:53,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:20:53,129 INFO L87 Difference]: Start difference. First operand 1769 states and 3205 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:53,168 INFO L93 Difference]: Finished difference Result 2181 states and 3855 transitions. [2022-07-19 20:20:53,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 20:20:53,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-19 20:20:53,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:53,177 INFO L225 Difference]: With dead ends: 2181 [2022-07-19 20:20:53,178 INFO L226 Difference]: Without dead ends: 1963 [2022-07-19 20:20:53,179 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 [2022-07-19 20:20:53,182 INFO L413 NwaCegarLoop]: 1641 mSDtfsCounter, 1515 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:53,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1749 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:20:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2022-07-19 20:20:53,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1961. [2022-07-19 20:20:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1959 states have (on average 1.7891781521184278) internal successors, (3505), 1960 states have internal predecessors, (3505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 3505 transitions. [2022-07-19 20:20:53,235 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 3505 transitions. Word has length 77 [2022-07-19 20:20:53,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:53,239 INFO L495 AbstractCegarLoop]: Abstraction has 1961 states and 3505 transitions. [2022-07-19 20:20:53,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 3505 transitions. [2022-07-19 20:20:53,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 20:20:53,240 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:53,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:53,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 20:20:53,241 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:53,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1546824319, now seen corresponding path program 1 times [2022-07-19 20:20:53,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:53,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066657036] [2022-07-19 20:20:53,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:53,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:53,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:53,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:53,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066657036] [2022-07-19 20:20:53,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066657036] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:53,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:53,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 20:20:53,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017233773] [2022-07-19 20:20:53,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:53,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 20:20:53,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:53,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 20:20:53,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:20:53,326 INFO L87 Difference]: Start difference. First operand 1961 states and 3505 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:53,376 INFO L93 Difference]: Finished difference Result 2733 states and 4715 transitions. [2022-07-19 20:20:53,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 20:20:53,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-19 20:20:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:53,386 INFO L225 Difference]: With dead ends: 2733 [2022-07-19 20:20:53,387 INFO L226 Difference]: Without dead ends: 2323 [2022-07-19 20:20:53,388 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 [2022-07-19 20:20:53,389 INFO L413 NwaCegarLoop]: 1636 mSDtfsCounter, 1511 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:53,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1748 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:20:53,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-07-19 20:20:53,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2321. [2022-07-19 20:20:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2319 states have (on average 1.7511858559724018) internal successors, (4061), 2320 states have internal predecessors, (4061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 4061 transitions. [2022-07-19 20:20:53,455 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 4061 transitions. Word has length 77 [2022-07-19 20:20:53,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:53,456 INFO L495 AbstractCegarLoop]: Abstraction has 2321 states and 4061 transitions. [2022-07-19 20:20:53,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 4061 transitions. [2022-07-19 20:20:53,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 20:20:53,457 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:53,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:53,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 20:20:53,458 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:53,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1884617461, now seen corresponding path program 1 times [2022-07-19 20:20:53,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:53,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851581159] [2022-07-19 20:20:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:53,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:53,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:53,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851581159] [2022-07-19 20:20:53,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851581159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:53,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:53,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 20:20:53,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726414247] [2022-07-19 20:20:53,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:53,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 20:20:53,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:53,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 20:20:53,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:20:53,518 INFO L87 Difference]: Start difference. First operand 2321 states and 4061 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:53,586 INFO L93 Difference]: Finished difference Result 3765 states and 6303 transitions. [2022-07-19 20:20:53,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 20:20:53,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-19 20:20:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:53,599 INFO L225 Difference]: With dead ends: 3765 [2022-07-19 20:20:53,600 INFO L226 Difference]: Without dead ends: 2995 [2022-07-19 20:20:53,603 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 [2022-07-19 20:20:53,603 INFO L413 NwaCegarLoop]: 1631 mSDtfsCounter, 1507 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:53,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1747 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:20:53,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2022-07-19 20:20:53,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2993. [2022-07-19 20:20:53,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2991 states have (on average 1.700100300902708) internal successors, (5085), 2992 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 5085 transitions. [2022-07-19 20:20:53,702 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 5085 transitions. Word has length 77 [2022-07-19 20:20:53,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:53,702 INFO L495 AbstractCegarLoop]: Abstraction has 2993 states and 5085 transitions. [2022-07-19 20:20:53,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:53,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 5085 transitions. [2022-07-19 20:20:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 20:20:53,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:53,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:53,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 20:20:53,704 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:53,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:53,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2001711063, now seen corresponding path program 1 times [2022-07-19 20:20:53,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:53,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838850804] [2022-07-19 20:20:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:53,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:53,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:53,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838850804] [2022-07-19 20:20:53,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838850804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:53,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:53,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 20:20:53,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120664490] [2022-07-19 20:20:53,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:53,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 20:20:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 20:20:53,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 20:20:53,784 INFO L87 Difference]: Start difference. First operand 2993 states and 5085 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:54,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:54,862 INFO L93 Difference]: Finished difference Result 20297 states and 31785 transitions. [2022-07-19 20:20:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 20:20:54,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-19 20:20:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:54,925 INFO L225 Difference]: With dead ends: 20297 [2022-07-19 20:20:54,925 INFO L226 Difference]: Without dead ends: 18855 [2022-07-19 20:20:54,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-07-19 20:20:54,934 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 10553 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10553 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:54,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10553 Valid, 3392 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 20:20:54,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18855 states. [2022-07-19 20:20:55,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18855 to 4433. [2022-07-19 20:20:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4431 states have (on average 1.6350710900473933) internal successors, (7245), 4432 states have internal predecessors, (7245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 7245 transitions. [2022-07-19 20:20:55,385 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 7245 transitions. Word has length 77 [2022-07-19 20:20:55,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:55,386 INFO L495 AbstractCegarLoop]: Abstraction has 4433 states and 7245 transitions. [2022-07-19 20:20:55,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 7245 transitions. [2022-07-19 20:20:55,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 20:20:55,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:55,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:55,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 20:20:55,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:55,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:55,389 INFO L85 PathProgramCache]: Analyzing trace with hash -914675591, now seen corresponding path program 1 times [2022-07-19 20:20:55,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:55,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459329029] [2022-07-19 20:20:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:55,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:55,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:55,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:55,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459329029] [2022-07-19 20:20:55,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459329029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:55,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:55,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 20:20:55,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380724985] [2022-07-19 20:20:55,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:55,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 20:20:55,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:55,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 20:20:55,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:20:55,458 INFO L87 Difference]: Start difference. First operand 4433 states and 7245 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:55,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:55,912 INFO L93 Difference]: Finished difference Result 9845 states and 15407 transitions. [2022-07-19 20:20:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 20:20:55,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-19 20:20:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:55,928 INFO L225 Difference]: With dead ends: 9845 [2022-07-19 20:20:55,928 INFO L226 Difference]: Without dead ends: 6963 [2022-07-19 20:20:55,932 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 [2022-07-19 20:20:55,933 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1498 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:55,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1671 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:20:55,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6963 states. [2022-07-19 20:20:56,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6963 to 6897. [2022-07-19 20:20:56,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6897 states, 6895 states have (on average 1.565917331399565) internal successors, (10797), 6896 states have internal predecessors, (10797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 10797 transitions. [2022-07-19 20:20:56,389 INFO L78 Accepts]: Start accepts. Automaton has 6897 states and 10797 transitions. Word has length 79 [2022-07-19 20:20:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:56,389 INFO L495 AbstractCegarLoop]: Abstraction has 6897 states and 10797 transitions. [2022-07-19 20:20:56,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:56,390 INFO L276 IsEmpty]: Start isEmpty. Operand 6897 states and 10797 transitions. [2022-07-19 20:20:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 20:20:56,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:56,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:56,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 20:20:56,391 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:56,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:56,392 INFO L85 PathProgramCache]: Analyzing trace with hash -848182079, now seen corresponding path program 1 times [2022-07-19 20:20:56,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:56,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592815583] [2022-07-19 20:20:56,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:56,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:56,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:56,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592815583] [2022-07-19 20:20:56,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592815583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:56,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:56,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 20:20:56,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622126116] [2022-07-19 20:20:56,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:56,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 20:20:56,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:56,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 20:20:56,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-19 20:20:56,577 INFO L87 Difference]: Start difference. First operand 6897 states and 10797 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:57,253 INFO L93 Difference]: Finished difference Result 12245 states and 18735 transitions. [2022-07-19 20:20:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 20:20:57,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-19 20:20:57,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:57,269 INFO L225 Difference]: With dead ends: 12245 [2022-07-19 20:20:57,269 INFO L226 Difference]: Without dead ends: 6899 [2022-07-19 20:20:57,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-07-19 20:20:57,279 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 7790 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7790 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:57,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7790 Valid, 2048 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 20:20:57,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6899 states. [2022-07-19 20:20:57,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6899 to 6897. [2022-07-19 20:20:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6897 states, 6895 states have (on average 1.5566352429296593) internal successors, (10733), 6896 states have internal predecessors, (10733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:57,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 10733 transitions. [2022-07-19 20:20:57,717 INFO L78 Accepts]: Start accepts. Automaton has 6897 states and 10733 transitions. Word has length 79 [2022-07-19 20:20:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:57,717 INFO L495 AbstractCegarLoop]: Abstraction has 6897 states and 10733 transitions. [2022-07-19 20:20:57,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand 6897 states and 10733 transitions. [2022-07-19 20:20:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 20:20:57,719 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:57,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:57,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 20:20:57,720 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:57,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash -938563623, now seen corresponding path program 1 times [2022-07-19 20:20:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:57,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230990353] [2022-07-19 20:20:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:57,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:57,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:57,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:57,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230990353] [2022-07-19 20:20:57,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230990353] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:57,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:57,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 20:20:57,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73949648] [2022-07-19 20:20:57,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:57,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 20:20:57,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:57,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 20:20:57,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 20:20:57,802 INFO L87 Difference]: Start difference. First operand 6897 states and 10733 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:58,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:20:58,356 INFO L93 Difference]: Finished difference Result 12243 states and 18606 transitions. [2022-07-19 20:20:58,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 20:20:58,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-19 20:20:58,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:20:58,371 INFO L225 Difference]: With dead ends: 12243 [2022-07-19 20:20:58,372 INFO L226 Difference]: Without dead ends: 6897 [2022-07-19 20:20:58,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-19 20:20:58,382 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 4648 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 20:20:58,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4648 Valid, 3055 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 20:20:58,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6897 states. [2022-07-19 20:20:58,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 6897. [2022-07-19 20:20:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6897 states, 6895 states have (on average 1.5473531544597534) internal successors, (10669), 6896 states have internal predecessors, (10669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:58,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 10669 transitions. [2022-07-19 20:20:58,972 INFO L78 Accepts]: Start accepts. Automaton has 6897 states and 10669 transitions. Word has length 80 [2022-07-19 20:20:58,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:20:58,972 INFO L495 AbstractCegarLoop]: Abstraction has 6897 states and 10669 transitions. [2022-07-19 20:20:58,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:20:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6897 states and 10669 transitions. [2022-07-19 20:20:58,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 20:20:58,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:20:58,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:20:58,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 20:20:58,975 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:20:58,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:20:58,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1639628201, now seen corresponding path program 1 times [2022-07-19 20:20:58,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:20:58,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704712476] [2022-07-19 20:20:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:20:58,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:20:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:20:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:20:59,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:20:59,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704712476] [2022-07-19 20:20:59,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704712476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:20:59,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:20:59,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 20:20:59,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529100229] [2022-07-19 20:20:59,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:20:59,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 20:20:59,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:20:59,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 20:20:59,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 20:20:59,073 INFO L87 Difference]: Start difference. First operand 6897 states and 10669 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:00,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:21:00,059 INFO L93 Difference]: Finished difference Result 10867 states and 16376 transitions. [2022-07-19 20:21:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 20:21:00,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-19 20:21:00,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:21:00,082 INFO L225 Difference]: With dead ends: 10867 [2022-07-19 20:21:00,083 INFO L226 Difference]: Without dead ends: 10865 [2022-07-19 20:21:00,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-19 20:21:00,087 INFO L413 NwaCegarLoop]: 1628 mSDtfsCounter, 696 mSDsluCounter, 9179 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 10807 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:21:00,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 10807 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:21:00,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2022-07-19 20:21:00,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 7089. [2022-07-19 20:21:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 7087 states have (on average 1.528009030619444) internal successors, (10829), 7088 states have internal predecessors, (10829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:00,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 10829 transitions. [2022-07-19 20:21:00,678 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 10829 transitions. Word has length 80 [2022-07-19 20:21:00,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:21:00,678 INFO L495 AbstractCegarLoop]: Abstraction has 7089 states and 10829 transitions. [2022-07-19 20:21:00,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:00,679 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 10829 transitions. [2022-07-19 20:21:00,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 20:21:00,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:21:00,682 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:21:00,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 20:21:00,682 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:21:00,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:21:00,683 INFO L85 PathProgramCache]: Analyzing trace with hash -205697416, now seen corresponding path program 1 times [2022-07-19 20:21:00,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:21:00,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247835368] [2022-07-19 20:21:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:21:00,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:21:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:21:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:21:00,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:21:00,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247835368] [2022-07-19 20:21:00,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247835368] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:21:00,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:21:00,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 20:21:00,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115694235] [2022-07-19 20:21:00,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:21:00,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 20:21:00,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:21:00,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 20:21:00,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 20:21:00,753 INFO L87 Difference]: Start difference. First operand 7089 states and 10829 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:21:05,686 INFO L93 Difference]: Finished difference Result 10854 states and 17835 transitions. [2022-07-19 20:21:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 20:21:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-19 20:21:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:21:05,703 INFO L225 Difference]: With dead ends: 10854 [2022-07-19 20:21:05,704 INFO L226 Difference]: Without dead ends: 9350 [2022-07-19 20:21:05,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 20:21:05,709 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 2576 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 1540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 5152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1540 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-19 20:21:05,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 342 Invalid, 5152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1540 Valid, 3612 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-19 20:21:05,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2022-07-19 20:21:06,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 9342. [2022-07-19 20:21:06,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9342 states, 9340 states have (on average 1.506745182012848) internal successors, (14073), 9341 states have internal predecessors, (14073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:06,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9342 states to 9342 states and 14073 transitions. [2022-07-19 20:21:06,367 INFO L78 Accepts]: Start accepts. Automaton has 9342 states and 14073 transitions. Word has length 80 [2022-07-19 20:21:06,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:21:06,367 INFO L495 AbstractCegarLoop]: Abstraction has 9342 states and 14073 transitions. [2022-07-19 20:21:06,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:06,368 INFO L276 IsEmpty]: Start isEmpty. Operand 9342 states and 14073 transitions. [2022-07-19 20:21:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-19 20:21:06,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:21:06,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:21:06,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 20:21:06,369 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:21:06,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:21:06,370 INFO L85 PathProgramCache]: Analyzing trace with hash 492740282, now seen corresponding path program 1 times [2022-07-19 20:21:06,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:21:06,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324887672] [2022-07-19 20:21:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:21:06,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:21:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:21:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:21:06,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:21:06,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324887672] [2022-07-19 20:21:06,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324887672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:21:06,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:21:06,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 20:21:06,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988319886] [2022-07-19 20:21:06,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:21:06,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 20:21:06,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:21:06,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 20:21:06,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 20:21:06,415 INFO L87 Difference]: Start difference. First operand 9342 states and 14073 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:07,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:21:07,226 INFO L93 Difference]: Finished difference Result 14981 states and 22271 transitions. [2022-07-19 20:21:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 20:21:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-19 20:21:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:21:07,252 INFO L225 Difference]: With dead ends: 14981 [2022-07-19 20:21:07,252 INFO L226 Difference]: Without dead ends: 11906 [2022-07-19 20:21:07,262 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 [2022-07-19 20:21:07,263 INFO L413 NwaCegarLoop]: 1658 mSDtfsCounter, 1523 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:21:07,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1753 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:21:07,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11906 states. [2022-07-19 20:21:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11906 to 11904. [2022-07-19 20:21:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11904 states, 11902 states have (on average 1.4863888422113931) internal successors, (17691), 11903 states have internal predecessors, (17691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:08,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11904 states to 11904 states and 17691 transitions. [2022-07-19 20:21:08,043 INFO L78 Accepts]: Start accepts. Automaton has 11904 states and 17691 transitions. Word has length 81 [2022-07-19 20:21:08,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:21:08,043 INFO L495 AbstractCegarLoop]: Abstraction has 11904 states and 17691 transitions. [2022-07-19 20:21:08,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 11904 states and 17691 transitions. [2022-07-19 20:21:08,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 20:21:08,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:21:08,049 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:21:08,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 20:21:08,049 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:21:08,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:21:08,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1561529476, now seen corresponding path program 1 times [2022-07-19 20:21:08,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:21:08,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066186236] [2022-07-19 20:21:08,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:21:08,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:21:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:21:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 20:21:08,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:21:08,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066186236] [2022-07-19 20:21:08,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066186236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:21:08,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:21:08,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 20:21:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904669474] [2022-07-19 20:21:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:21:08,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 20:21:08,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:21:08,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 20:21:08,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 20:21:08,135 INFO L87 Difference]: Start difference. First operand 11904 states and 17691 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:12,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:21:12,063 INFO L93 Difference]: Finished difference Result 62094 states and 89410 transitions. [2022-07-19 20:21:12,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 20:21:12,063 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-19 20:21:12,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:21:12,176 INFO L225 Difference]: With dead ends: 62094 [2022-07-19 20:21:12,177 INFO L226 Difference]: Without dead ends: 53996 [2022-07-19 20:21:12,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 20:21:12,208 INFO L413 NwaCegarLoop]: 1668 mSDtfsCounter, 8638 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8638 SdHoareTripleChecker+Valid, 3816 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 20:21:12,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8638 Valid, 3816 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 20:21:12,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53996 states. [2022-07-19 20:21:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53996 to 20000. [2022-07-19 20:21:13,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20000 states, 19998 states have (on average 1.459095909590959) internal successors, (29179), 19999 states have internal predecessors, (29179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20000 states to 20000 states and 29179 transitions. [2022-07-19 20:21:14,002 INFO L78 Accepts]: Start accepts. Automaton has 20000 states and 29179 transitions. Word has length 112 [2022-07-19 20:21:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:21:14,002 INFO L495 AbstractCegarLoop]: Abstraction has 20000 states and 29179 transitions. [2022-07-19 20:21:14,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 20000 states and 29179 transitions. [2022-07-19 20:21:14,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 20:21:14,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:21:14,011 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:21:14,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 20:21:14,011 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:21:14,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:21:14,012 INFO L85 PathProgramCache]: Analyzing trace with hash 964655004, now seen corresponding path program 1 times [2022-07-19 20:21:14,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:21:14,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837198199] [2022-07-19 20:21:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:21:14,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:21:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:21:14,104 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-19 20:21:14,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:21:14,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837198199] [2022-07-19 20:21:14,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837198199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:21:14,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:21:14,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 20:21:14,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772541263] [2022-07-19 20:21:14,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:21:14,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 20:21:14,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:21:14,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 20:21:14,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 20:21:14,109 INFO L87 Difference]: Start difference. First operand 20000 states and 29179 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:21:19,470 INFO L93 Difference]: Finished difference Result 70190 states and 100898 transitions. [2022-07-19 20:21:19,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 20:21:19,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-19 20:21:19,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:21:19,580 INFO L225 Difference]: With dead ends: 70190 [2022-07-19 20:21:19,580 INFO L226 Difference]: Without dead ends: 62092 [2022-07-19 20:21:19,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 20:21:19,613 INFO L413 NwaCegarLoop]: 1670 mSDtfsCounter, 8455 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8455 SdHoareTripleChecker+Valid, 3903 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 20:21:19,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8455 Valid, 3903 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 20:21:19,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62092 states. [2022-07-19 20:21:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62092 to 32160. [2022-07-19 20:21:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32160 states, 32158 states have (on average 1.4407301449095093) internal successors, (46331), 32159 states have internal predecessors, (46331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32160 states to 32160 states and 46331 transitions. [2022-07-19 20:21:23,104 INFO L78 Accepts]: Start accepts. Automaton has 32160 states and 46331 transitions. Word has length 112 [2022-07-19 20:21:23,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:21:23,104 INFO L495 AbstractCegarLoop]: Abstraction has 32160 states and 46331 transitions. [2022-07-19 20:21:23,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:23,105 INFO L276 IsEmpty]: Start isEmpty. Operand 32160 states and 46331 transitions. [2022-07-19 20:21:23,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 20:21:23,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:21:23,112 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:21:23,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 20:21:23,112 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:21:23,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:21:23,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2096294844, now seen corresponding path program 1 times [2022-07-19 20:21:23,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:21:23,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25215627] [2022-07-19 20:21:23,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:21:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:21:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:21:23,200 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-19 20:21:23,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:21:23,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25215627] [2022-07-19 20:21:23,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25215627] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:21:23,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:21:23,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 20:21:23,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414217181] [2022-07-19 20:21:23,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:21:23,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 20:21:23,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:21:23,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 20:21:23,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 20:21:23,202 INFO L87 Difference]: Start difference. First operand 32160 states and 46331 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:29,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:21:29,593 INFO L93 Difference]: Finished difference Result 78286 states and 112386 transitions. [2022-07-19 20:21:29,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 20:21:29,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-19 20:21:29,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:21:29,686 INFO L225 Difference]: With dead ends: 78286 [2022-07-19 20:21:29,686 INFO L226 Difference]: Without dead ends: 70188 [2022-07-19 20:21:29,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 20:21:29,708 INFO L413 NwaCegarLoop]: 1670 mSDtfsCounter, 8425 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8425 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 20:21:29,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8425 Valid, 3925 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 20:21:29,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70188 states. [2022-07-19 20:21:33,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70188 to 40256. [2022-07-19 20:21:33,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40256 states, 40254 states have (on average 1.4363541511402593) internal successors, (57819), 40255 states have internal predecessors, (57819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:33,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40256 states to 40256 states and 57819 transitions. [2022-07-19 20:21:33,764 INFO L78 Accepts]: Start accepts. Automaton has 40256 states and 57819 transitions. Word has length 112 [2022-07-19 20:21:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:21:33,764 INFO L495 AbstractCegarLoop]: Abstraction has 40256 states and 57819 transitions. [2022-07-19 20:21:33,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 40256 states and 57819 transitions. [2022-07-19 20:21:33,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 20:21:33,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:21:33,772 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:21:33,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 20:21:33,772 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:21:33,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:21:33,773 INFO L85 PathProgramCache]: Analyzing trace with hash 860835804, now seen corresponding path program 1 times [2022-07-19 20:21:33,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:21:33,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597858313] [2022-07-19 20:21:33,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:21:33,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:21:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:21:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-19 20:21:33,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:21:33,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597858313] [2022-07-19 20:21:33,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597858313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:21:33,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:21:33,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 20:21:33,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744766146] [2022-07-19 20:21:33,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:21:33,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 20:21:33,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:21:33,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 20:21:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 20:21:33,857 INFO L87 Difference]: Start difference. First operand 40256 states and 57819 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:41,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:21:41,203 INFO L93 Difference]: Finished difference Result 86382 states and 123874 transitions. [2022-07-19 20:21:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 20:21:41,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-19 20:21:41,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:21:41,315 INFO L225 Difference]: With dead ends: 86382 [2022-07-19 20:21:41,315 INFO L226 Difference]: Without dead ends: 78284 [2022-07-19 20:21:41,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 20:21:41,338 INFO L413 NwaCegarLoop]: 1670 mSDtfsCounter, 8493 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8493 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 20:21:41,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8493 Valid, 3966 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 20:21:41,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78284 states. [2022-07-19 20:21:46,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78284 to 48352. [2022-07-19 20:21:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48352 states, 48350 states have (on average 1.433443640124095) internal successors, (69307), 48351 states have internal predecessors, (69307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:46,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48352 states to 48352 states and 69307 transitions. [2022-07-19 20:21:46,575 INFO L78 Accepts]: Start accepts. Automaton has 48352 states and 69307 transitions. Word has length 112 [2022-07-19 20:21:46,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:21:46,575 INFO L495 AbstractCegarLoop]: Abstraction has 48352 states and 69307 transitions. [2022-07-19 20:21:46,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:21:46,576 INFO L276 IsEmpty]: Start isEmpty. Operand 48352 states and 69307 transitions. [2022-07-19 20:21:46,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 20:21:46,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:21:46,585 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:21:46,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 20:21:46,585 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:21:46,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:21:46,586 INFO L85 PathProgramCache]: Analyzing trace with hash -560159748, now seen corresponding path program 1 times [2022-07-19 20:21:46,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:21:46,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631705075] [2022-07-19 20:21:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:21:46,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:21:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:21:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 20:21:46,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:21:46,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631705075] [2022-07-19 20:21:46,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631705075] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:21:46,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:21:46,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 20:21:46,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907507502] [2022-07-19 20:21:46,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:21:46,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 20:21:46,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:21:46,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 20:21:46,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-19 20:21:46,689 INFO L87 Difference]: Start difference. First operand 48352 states and 69307 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)