./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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/eca-rers2012/Problem03_label22.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 f365a0f129fa90e96f59a2a67efc46f6bd75f705664f3dab23b0f5e5824e9e07 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 08:41:58,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 08:41:58,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 08:41:58,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 08:41:58,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 08:41:58,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 08:41:58,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 08:41:58,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 08:41:58,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 08:41:58,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 08:41:58,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 08:41:58,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 08:41:58,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 08:41:58,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 08:41:58,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 08:41:58,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 08:41:58,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 08:41:58,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 08:41:58,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 08:41:58,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 08:41:58,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 08:41:58,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 08:41:58,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 08:41:58,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 08:41:58,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 08:41:58,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 08:41:58,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 08:41:58,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 08:41:58,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 08:41:58,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 08:41:58,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 08:41:58,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 08:41:58,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 08:41:58,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 08:41:58,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 08:41:58,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 08:41:58,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 08:41:58,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 08:41:58,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 08:41:58,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 08:41:58,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 08:41:58,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 08:41:58,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 08:41:58,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 08:41:58,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 08:41:58,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 08:41:58,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 08:41:58,167 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 08:41:58,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 08:41:58,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 08:41:58,168 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 08:41:58,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 08:41:58,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 08:41:58,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 08:41:58,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 08:41:58,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 08:41:58,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 08:41:58,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 08:41:58,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 08:41:58,169 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 08:41:58,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 08:41:58,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 08:41:58,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 08:41:58,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 08:41:58,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 08:41:58,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 08:41:58,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 08:41:58,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 08:41:58,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 08:41:58,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 08:41:58,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 08:41:58,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 08:41:58,172 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 08:41:58,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 08:41:58,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 08:41:58,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 08:41:58,173 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f365a0f129fa90e96f59a2a67efc46f6bd75f705664f3dab23b0f5e5824e9e07 [2021-12-22 08:41:58,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 08:41:58,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 08:41:58,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 08:41:58,397 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 08:41:58,398 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 08:41:58,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label22.c [2021-12-22 08:41:58,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924aefb9a/ee6dd9eb1f1b42bd8ea7aa866498b866/FLAGfe0a17a8c [2021-12-22 08:41:58,932 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 08:41:58,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label22.c [2021-12-22 08:41:58,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924aefb9a/ee6dd9eb1f1b42bd8ea7aa866498b866/FLAGfe0a17a8c [2021-12-22 08:41:58,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924aefb9a/ee6dd9eb1f1b42bd8ea7aa866498b866 [2021-12-22 08:41:58,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 08:41:58,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 08:41:58,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 08:41:58,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 08:41:58,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 08:41:58,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:41:58" (1/1) ... [2021-12-22 08:41:58,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc32562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:58, skipping insertion in model container [2021-12-22 08:41:58,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:41:58" (1/1) ... [2021-12-22 08:41:58,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 08:41:59,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 08:41:59,415 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/eca-rers2012/Problem03_label22.c[56764,56777] [2021-12-22 08:41:59,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 08:41:59,446 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 08:41:59,629 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/eca-rers2012/Problem03_label22.c[56764,56777] [2021-12-22 08:41:59,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 08:41:59,652 INFO L208 MainTranslator]: Completed translation [2021-12-22 08:41:59,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59 WrapperNode [2021-12-22 08:41:59,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 08:41:59,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 08:41:59,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 08:41:59,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 08:41:59,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,747 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2021-12-22 08:41:59,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 08:41:59,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 08:41:59,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 08:41:59,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 08:41:59,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 08:41:59,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 08:41:59,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 08:41:59,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 08:41:59,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (1/1) ... [2021-12-22 08:41:59,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 08:41:59,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:41:59,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 08:41:59,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 08:41:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 08:41:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 08:41:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 08:41:59,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 08:41:59,994 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 08:41:59,996 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 08:42:01,229 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 08:42:01,235 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 08:42:01,236 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 08:42:01,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:42:01 BoogieIcfgContainer [2021-12-22 08:42:01,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 08:42:01,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 08:42:01,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 08:42:01,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 08:42:01,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:41:58" (1/3) ... [2021-12-22 08:42:01,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d44276e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:42:01, skipping insertion in model container [2021-12-22 08:42:01,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:41:59" (2/3) ... [2021-12-22 08:42:01,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d44276e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:42:01, skipping insertion in model container [2021-12-22 08:42:01,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:42:01" (3/3) ... [2021-12-22 08:42:01,244 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label22.c [2021-12-22 08:42:01,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 08:42:01,247 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 08:42:01,279 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 08:42:01,284 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 08:42:01,284 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 08:42:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:01,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-22 08:42:01,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:01,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:01,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:01,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:01,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1133598669, now seen corresponding path program 1 times [2021-12-22 08:42:01,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:01,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782994120] [2021-12-22 08:42:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:01,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:42:01,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:01,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782994120] [2021-12-22 08:42:01,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782994120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:01,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:01,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:42:01,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275532459] [2021-12-22 08:42:01,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:01,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:01,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:01,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:01,687 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 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 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:02,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:02,566 INFO L93 Difference]: Finished difference Result 833 states and 1474 transitions. [2021-12-22 08:42:02,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:02,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2021-12-22 08:42:02,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:02,588 INFO L225 Difference]: With dead ends: 833 [2021-12-22 08:42:02,588 INFO L226 Difference]: Without dead ends: 454 [2021-12-22 08:42:02,595 INFO L932 BasicCegarLoop]: 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 [2021-12-22 08:42:02,597 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 124 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:02,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 163 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 08:42:02,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-12-22 08:42:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 450. [2021-12-22 08:42:02,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.55902004454343) internal successors, (700), 449 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 700 transitions. [2021-12-22 08:42:02,637 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 700 transitions. Word has length 167 [2021-12-22 08:42:02,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:02,638 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 700 transitions. [2021-12-22 08:42:02,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:02,639 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 700 transitions. [2021-12-22 08:42:02,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-22 08:42:02,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:02,642 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:02,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 08:42:02,642 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:02,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:02,643 INFO L85 PathProgramCache]: Analyzing trace with hash 325593383, now seen corresponding path program 1 times [2021-12-22 08:42:02,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:02,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781624907] [2021-12-22 08:42:02,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:02,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:42:02,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:02,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781624907] [2021-12-22 08:42:02,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781624907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:02,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:02,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:42:02,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811903896] [2021-12-22 08:42:02,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:02,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:02,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:02,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:02,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:02,705 INFO L87 Difference]: Start difference. First operand 450 states and 700 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:03,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:03,359 INFO L93 Difference]: Finished difference Result 1337 states and 2085 transitions. [2021-12-22 08:42:03,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:03,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-12-22 08:42:03,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:03,362 INFO L225 Difference]: With dead ends: 1337 [2021-12-22 08:42:03,362 INFO L226 Difference]: Without dead ends: 889 [2021-12-22 08:42:03,363 INFO L932 BasicCegarLoop]: 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 [2021-12-22 08:42:03,364 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 285 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:03,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 104 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 08:42:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-12-22 08:42:03,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 885. [2021-12-22 08:42:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.5429864253393666) internal successors, (1364), 884 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1364 transitions. [2021-12-22 08:42:03,399 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1364 transitions. Word has length 173 [2021-12-22 08:42:03,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:03,400 INFO L470 AbstractCegarLoop]: Abstraction has 885 states and 1364 transitions. [2021-12-22 08:42:03,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1364 transitions. [2021-12-22 08:42:03,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-22 08:42:03,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:03,411 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:03,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 08:42:03,411 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:03,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:03,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1446106020, now seen corresponding path program 1 times [2021-12-22 08:42:03,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:03,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025252076] [2021-12-22 08:42:03,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:03,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:42:03,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:03,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025252076] [2021-12-22 08:42:03,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025252076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:03,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:03,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:42:03,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839936947] [2021-12-22 08:42:03,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:03,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:03,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:03,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:03,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:03,468 INFO L87 Difference]: Start difference. First operand 885 states and 1364 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:04,087 INFO L93 Difference]: Finished difference Result 2599 states and 4012 transitions. [2021-12-22 08:42:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:04,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2021-12-22 08:42:04,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:04,093 INFO L225 Difference]: With dead ends: 2599 [2021-12-22 08:42:04,094 INFO L226 Difference]: Without dead ends: 1716 [2021-12-22 08:42:04,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:04,096 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 258 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:04,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 134 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 08:42:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2021-12-22 08:42:04,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1714. [2021-12-22 08:42:04,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1713 states have (on average 1.4687682428488034) internal successors, (2516), 1713 states have internal predecessors, (2516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2516 transitions. [2021-12-22 08:42:04,124 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2516 transitions. Word has length 180 [2021-12-22 08:42:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:04,124 INFO L470 AbstractCegarLoop]: Abstraction has 1714 states and 2516 transitions. [2021-12-22 08:42:04,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2516 transitions. [2021-12-22 08:42:04,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-22 08:42:04,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:04,127 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:04,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 08:42:04,128 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:04,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:04,128 INFO L85 PathProgramCache]: Analyzing trace with hash 212767863, now seen corresponding path program 1 times [2021-12-22 08:42:04,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:04,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056216316] [2021-12-22 08:42:04,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:04,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:42:04,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:04,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056216316] [2021-12-22 08:42:04,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056216316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:04,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:04,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:42:04,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209144600] [2021-12-22 08:42:04,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:04,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:04,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:04,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:04,187 INFO L87 Difference]: Start difference. First operand 1714 states and 2516 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:04,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:04,702 INFO L93 Difference]: Finished difference Result 4665 states and 6865 transitions. [2021-12-22 08:42:04,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:04,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2021-12-22 08:42:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:04,711 INFO L225 Difference]: With dead ends: 4665 [2021-12-22 08:42:04,711 INFO L226 Difference]: Without dead ends: 2953 [2021-12-22 08:42:04,714 INFO L932 BasicCegarLoop]: 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 [2021-12-22 08:42:04,715 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 241 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:04,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 167 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 08:42:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-12-22 08:42:04,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2949. [2021-12-22 08:42:04,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 1.4189280868385346) internal successors, (4183), 2948 states have internal predecessors, (4183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 4183 transitions. [2021-12-22 08:42:04,755 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 4183 transitions. Word has length 180 [2021-12-22 08:42:04,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:04,756 INFO L470 AbstractCegarLoop]: Abstraction has 2949 states and 4183 transitions. [2021-12-22 08:42:04,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:04,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 4183 transitions. [2021-12-22 08:42:04,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-22 08:42:04,760 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:04,760 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:04,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 08:42:04,761 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:04,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:04,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1433692648, now seen corresponding path program 1 times [2021-12-22 08:42:04,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:04,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844339745] [2021-12-22 08:42:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:04,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 08:42:04,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:04,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844339745] [2021-12-22 08:42:04,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844339745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:04,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:04,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:42:04,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163436626] [2021-12-22 08:42:04,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:04,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:04,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:04,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:04,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:04,806 INFO L87 Difference]: Start difference. First operand 2949 states and 4183 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:05,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:05,398 INFO L93 Difference]: Finished difference Result 8575 states and 12210 transitions. [2021-12-22 08:42:05,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:05,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-12-22 08:42:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:05,415 INFO L225 Difference]: With dead ends: 8575 [2021-12-22 08:42:05,415 INFO L226 Difference]: Without dead ends: 5831 [2021-12-22 08:42:05,418 INFO L932 BasicCegarLoop]: 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 [2021-12-22 08:42:05,421 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 247 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:05,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 92 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 08:42:05,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2021-12-22 08:42:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5795. [2021-12-22 08:42:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5794 states have (on average 1.387124611667242) internal successors, (8037), 5794 states have internal predecessors, (8037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:05,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 8037 transitions. [2021-12-22 08:42:05,512 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 8037 transitions. Word has length 181 [2021-12-22 08:42:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:05,512 INFO L470 AbstractCegarLoop]: Abstraction has 5795 states and 8037 transitions. [2021-12-22 08:42:05,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 8037 transitions. [2021-12-22 08:42:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-22 08:42:05,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:05,521 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:05,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 08:42:05,521 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:05,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:05,522 INFO L85 PathProgramCache]: Analyzing trace with hash -509944834, now seen corresponding path program 1 times [2021-12-22 08:42:05,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:05,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56309227] [2021-12-22 08:42:05,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:05,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-22 08:42:05,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:05,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56309227] [2021-12-22 08:42:05,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56309227] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:05,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:05,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:42:05,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587573410] [2021-12-22 08:42:05,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:05,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:05,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:05,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:05,578 INFO L87 Difference]: Start difference. First operand 5795 states and 8037 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:06,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:06,237 INFO L93 Difference]: Finished difference Result 17290 states and 23986 transitions. [2021-12-22 08:42:06,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:06,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-12-22 08:42:06,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:06,269 INFO L225 Difference]: With dead ends: 17290 [2021-12-22 08:42:06,269 INFO L226 Difference]: Without dead ends: 11497 [2021-12-22 08:42:06,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:06,277 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 216 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:06,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 415 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 08:42:06,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11497 states. [2021-12-22 08:42:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11497 to 11490. [2021-12-22 08:42:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11490 states, 11489 states have (on average 1.2984593959439463) internal successors, (14918), 11489 states have internal predecessors, (14918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11490 states to 11490 states and 14918 transitions. [2021-12-22 08:42:06,435 INFO L78 Accepts]: Start accepts. Automaton has 11490 states and 14918 transitions. Word has length 195 [2021-12-22 08:42:06,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:06,436 INFO L470 AbstractCegarLoop]: Abstraction has 11490 states and 14918 transitions. [2021-12-22 08:42:06,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 11490 states and 14918 transitions. [2021-12-22 08:42:06,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-22 08:42:06,449 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:06,449 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:06,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 08:42:06,450 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:06,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:06,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1313048590, now seen corresponding path program 1 times [2021-12-22 08:42:06,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:06,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054805679] [2021-12-22 08:42:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:06,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-22 08:42:06,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:06,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054805679] [2021-12-22 08:42:06,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054805679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:06,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:06,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:42:06,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104075934] [2021-12-22 08:42:06,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:06,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:06,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:06,504 INFO L87 Difference]: Start difference. First operand 11490 states and 14918 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:07,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:07,214 INFO L93 Difference]: Finished difference Result 30541 states and 39608 transitions. [2021-12-22 08:42:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:07,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2021-12-22 08:42:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:07,261 INFO L225 Difference]: With dead ends: 30541 [2021-12-22 08:42:07,262 INFO L226 Difference]: Without dead ends: 19865 [2021-12-22 08:42:07,275 INFO L932 BasicCegarLoop]: 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 [2021-12-22 08:42:07,276 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 217 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:07,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 161 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 08:42:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19865 states. [2021-12-22 08:42:07,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19865 to 19849. [2021-12-22 08:42:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19849 states, 19848 states have (on average 1.2673821039903266) internal successors, (25155), 19848 states have internal predecessors, (25155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:07,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19849 states to 19849 states and 25155 transitions. [2021-12-22 08:42:07,589 INFO L78 Accepts]: Start accepts. Automaton has 19849 states and 25155 transitions. Word has length 202 [2021-12-22 08:42:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:07,589 INFO L470 AbstractCegarLoop]: Abstraction has 19849 states and 25155 transitions. [2021-12-22 08:42:07,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:07,590 INFO L276 IsEmpty]: Start isEmpty. Operand 19849 states and 25155 transitions. [2021-12-22 08:42:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-22 08:42:07,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:07,613 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:07,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 08:42:07,614 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:07,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:07,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1206143638, now seen corresponding path program 1 times [2021-12-22 08:42:07,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:07,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019395064] [2021-12-22 08:42:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:07,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-22 08:42:07,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:07,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019395064] [2021-12-22 08:42:07,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019395064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:07,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:07,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:42:07,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978584782] [2021-12-22 08:42:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:07,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:07,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:07,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:07,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:07,689 INFO L87 Difference]: Start difference. First operand 19849 states and 25155 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:08,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:08,400 INFO L93 Difference]: Finished difference Result 45211 states and 57500 transitions. [2021-12-22 08:42:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:08,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2021-12-22 08:42:08,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:08,443 INFO L225 Difference]: With dead ends: 45211 [2021-12-22 08:42:08,443 INFO L226 Difference]: Without dead ends: 25364 [2021-12-22 08:42:08,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:08,532 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 210 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:08,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 408 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 08:42:08,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25364 states. [2021-12-22 08:42:08,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25364 to 24516. [2021-12-22 08:42:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24516 states, 24515 states have (on average 1.2366306343055273) internal successors, (30316), 24515 states have internal predecessors, (30316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:08,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24516 states to 24516 states and 30316 transitions. [2021-12-22 08:42:08,830 INFO L78 Accepts]: Start accepts. Automaton has 24516 states and 30316 transitions. Word has length 221 [2021-12-22 08:42:08,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:08,833 INFO L470 AbstractCegarLoop]: Abstraction has 24516 states and 30316 transitions. [2021-12-22 08:42:08,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 24516 states and 30316 transitions. [2021-12-22 08:42:08,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-22 08:42:08,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:08,859 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:08,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 08:42:08,862 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:08,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:08,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1545620703, now seen corresponding path program 1 times [2021-12-22 08:42:08,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:08,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105574912] [2021-12-22 08:42:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:08,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 08:42:09,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:09,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105574912] [2021-12-22 08:42:09,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105574912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:09,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:09,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:42:09,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945843683] [2021-12-22 08:42:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:09,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:09,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:09,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:09,014 INFO L87 Difference]: Start difference. First operand 24516 states and 30316 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:09,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:09,728 INFO L93 Difference]: Finished difference Result 53726 states and 66206 transitions. [2021-12-22 08:42:09,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:09,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2021-12-22 08:42:09,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:09,784 INFO L225 Difference]: With dead ends: 53726 [2021-12-22 08:42:09,785 INFO L226 Difference]: Without dead ends: 30227 [2021-12-22 08:42:09,809 INFO L932 BasicCegarLoop]: 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 [2021-12-22 08:42:09,810 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 204 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:09,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 184 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 08:42:09,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30227 states. [2021-12-22 08:42:10,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30227 to 30200. [2021-12-22 08:42:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30200 states, 30199 states have (on average 1.2158018477433028) internal successors, (36716), 30199 states have internal predecessors, (36716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30200 states to 30200 states and 36716 transitions. [2021-12-22 08:42:10,255 INFO L78 Accepts]: Start accepts. Automaton has 30200 states and 36716 transitions. Word has length 227 [2021-12-22 08:42:10,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:10,256 INFO L470 AbstractCegarLoop]: Abstraction has 30200 states and 36716 transitions. [2021-12-22 08:42:10,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:10,256 INFO L276 IsEmpty]: Start isEmpty. Operand 30200 states and 36716 transitions. [2021-12-22 08:42:10,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-22 08:42:10,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:10,281 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:10,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 08:42:10,281 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:10,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:10,282 INFO L85 PathProgramCache]: Analyzing trace with hash -176441772, now seen corresponding path program 2 times [2021-12-22 08:42:10,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:10,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710405994] [2021-12-22 08:42:10,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:10,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 08:42:10,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:10,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710405994] [2021-12-22 08:42:10,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710405994] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:10,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722320748] [2021-12-22 08:42:10,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 08:42:10,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:10,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:10,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:10,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 08:42:10,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 08:42:10,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 08:42:10,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:42:10,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:10,902 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 08:42:10,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:10,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722320748] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:10,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:10,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-22 08:42:10,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347791548] [2021-12-22 08:42:10,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:10,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:10,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:10,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:10,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:10,905 INFO L87 Difference]: Start difference. First operand 30200 states and 36716 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:11,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:11,741 INFO L93 Difference]: Finished difference Result 71975 states and 87976 transitions. [2021-12-22 08:42:11,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:11,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-12-22 08:42:11,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:11,805 INFO L225 Difference]: With dead ends: 71975 [2021-12-22 08:42:11,806 INFO L226 Difference]: Without dead ends: 44416 [2021-12-22 08:42:11,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:11,831 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 234 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:11,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 409 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 08:42:11,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44416 states. [2021-12-22 08:42:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44416 to 44207. [2021-12-22 08:42:12,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44207 states, 44206 states have (on average 1.2091345066280594) internal successors, (53451), 44206 states have internal predecessors, (53451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:12,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44207 states to 44207 states and 53451 transitions. [2021-12-22 08:42:12,360 INFO L78 Accepts]: Start accepts. Automaton has 44207 states and 53451 transitions. Word has length 234 [2021-12-22 08:42:12,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:12,361 INFO L470 AbstractCegarLoop]: Abstraction has 44207 states and 53451 transitions. [2021-12-22 08:42:12,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:12,361 INFO L276 IsEmpty]: Start isEmpty. Operand 44207 states and 53451 transitions. [2021-12-22 08:42:12,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-12-22 08:42:12,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:12,400 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:12,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:12,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-22 08:42:12,616 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:12,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:12,616 INFO L85 PathProgramCache]: Analyzing trace with hash -474004114, now seen corresponding path program 1 times [2021-12-22 08:42:12,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:12,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050510049] [2021-12-22 08:42:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:12,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-22 08:42:12,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:12,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050510049] [2021-12-22 08:42:12,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050510049] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:12,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467261043] [2021-12-22 08:42:12,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:12,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:12,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:12,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:12,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 08:42:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:12,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:42:12,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-22 08:42:13,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:13,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467261043] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:13,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:13,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-22 08:42:13,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275449931] [2021-12-22 08:42:13,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:13,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:13,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:13,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:13,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:13,203 INFO L87 Difference]: Start difference. First operand 44207 states and 53451 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:13,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:13,939 INFO L93 Difference]: Finished difference Result 82930 states and 100566 transitions. [2021-12-22 08:42:13,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:13,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2021-12-22 08:42:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:13,992 INFO L225 Difference]: With dead ends: 82930 [2021-12-22 08:42:13,993 INFO L226 Difference]: Without dead ends: 39131 [2021-12-22 08:42:14,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:14,023 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 226 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:14,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 166 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 08:42:14,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39131 states. [2021-12-22 08:42:14,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39131 to 36284. [2021-12-22 08:42:14,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36284 states, 36283 states have (on average 1.1551415263346472) internal successors, (41912), 36283 states have internal predecessors, (41912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36284 states to 36284 states and 41912 transitions. [2021-12-22 08:42:14,515 INFO L78 Accepts]: Start accepts. Automaton has 36284 states and 41912 transitions. Word has length 240 [2021-12-22 08:42:14,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:14,516 INFO L470 AbstractCegarLoop]: Abstraction has 36284 states and 41912 transitions. [2021-12-22 08:42:14,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 36284 states and 41912 transitions. [2021-12-22 08:42:14,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-22 08:42:14,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:14,540 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:14,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:14,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-22 08:42:14,759 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:14,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:14,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1197379301, now seen corresponding path program 1 times [2021-12-22 08:42:14,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:14,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817547127] [2021-12-22 08:42:14,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:14,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 08:42:14,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:14,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817547127] [2021-12-22 08:42:14,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817547127] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:14,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:14,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:42:14,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538346010] [2021-12-22 08:42:14,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:14,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 08:42:14,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 08:42:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 08:42:14,854 INFO L87 Difference]: Start difference. First operand 36284 states and 41912 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:15,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:15,946 INFO L93 Difference]: Finished difference Result 71396 states and 82559 transitions. [2021-12-22 08:42:15,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 08:42:15,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-12-22 08:42:15,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:15,992 INFO L225 Difference]: With dead ends: 71396 [2021-12-22 08:42:15,992 INFO L226 Difference]: Without dead ends: 36332 [2021-12-22 08:42:16,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 08:42:16,009 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 405 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:16,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 194 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 08:42:16,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36332 states. [2021-12-22 08:42:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36332 to 35472. [2021-12-22 08:42:16,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35472 states, 35471 states have (on average 1.15632488511742) internal successors, (41016), 35471 states have internal predecessors, (41016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35472 states to 35472 states and 41016 transitions. [2021-12-22 08:42:16,550 INFO L78 Accepts]: Start accepts. Automaton has 35472 states and 41016 transitions. Word has length 241 [2021-12-22 08:42:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:16,550 INFO L470 AbstractCegarLoop]: Abstraction has 35472 states and 41016 transitions. [2021-12-22 08:42:16,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 35472 states and 41016 transitions. [2021-12-22 08:42:16,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-22 08:42:16,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:16,571 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:16,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 08:42:16,572 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:16,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash -404609305, now seen corresponding path program 1 times [2021-12-22 08:42:16,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:16,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529114946] [2021-12-22 08:42:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:16,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 08:42:16,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:16,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529114946] [2021-12-22 08:42:16,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529114946] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:16,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:16,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:42:16,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515598668] [2021-12-22 08:42:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:16,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:16,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:16,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:16,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:16,653 INFO L87 Difference]: Start difference. First operand 35472 states and 41016 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:17,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:17,331 INFO L93 Difference]: Finished difference Result 70335 states and 81368 transitions. [2021-12-22 08:42:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:17,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-12-22 08:42:17,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:17,372 INFO L225 Difference]: With dead ends: 70335 [2021-12-22 08:42:17,372 INFO L226 Difference]: Without dead ends: 36083 [2021-12-22 08:42:17,396 INFO L932 BasicCegarLoop]: 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 [2021-12-22 08:42:17,396 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 133 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:17,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 197 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 08:42:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36083 states. [2021-12-22 08:42:17,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36083 to 36081. [2021-12-22 08:42:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36081 states, 36080 states have (on average 1.1554046563192906) internal successors, (41687), 36080 states have internal predecessors, (41687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36081 states to 36081 states and 41687 transitions. [2021-12-22 08:42:17,832 INFO L78 Accepts]: Start accepts. Automaton has 36081 states and 41687 transitions. Word has length 241 [2021-12-22 08:42:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:17,832 INFO L470 AbstractCegarLoop]: Abstraction has 36081 states and 41687 transitions. [2021-12-22 08:42:17,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:17,833 INFO L276 IsEmpty]: Start isEmpty. Operand 36081 states and 41687 transitions. [2021-12-22 08:42:17,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-22 08:42:17,850 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:17,850 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:17,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 08:42:17,851 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:17,851 INFO L85 PathProgramCache]: Analyzing trace with hash -178927718, now seen corresponding path program 1 times [2021-12-22 08:42:17,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:17,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772450663] [2021-12-22 08:42:17,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:17,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:17,915 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 92 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-22 08:42:17,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:17,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772450663] [2021-12-22 08:42:17,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772450663] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:17,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541874213] [2021-12-22 08:42:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:17,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:17,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:17,917 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:17,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 08:42:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:18,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 08:42:18,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-22 08:42:18,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:18,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541874213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:18,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:18,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-22 08:42:18,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001271263] [2021-12-22 08:42:18,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:18,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:18,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:18,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:18,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:18,280 INFO L87 Difference]: Start difference. First operand 36081 states and 41687 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:18,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:18,772 INFO L93 Difference]: Finished difference Result 63753 states and 73373 transitions. [2021-12-22 08:42:18,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:18,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2021-12-22 08:42:18,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:18,806 INFO L225 Difference]: With dead ends: 63753 [2021-12-22 08:42:18,806 INFO L226 Difference]: Without dead ends: 29501 [2021-12-22 08:42:18,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:18,826 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 308 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:18,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 08:42:18,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29501 states. [2021-12-22 08:42:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29501 to 28892. [2021-12-22 08:42:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28892 states, 28891 states have (on average 1.134505555363262) internal successors, (32777), 28891 states have internal predecessors, (32777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28892 states to 28892 states and 32777 transitions. [2021-12-22 08:42:19,131 INFO L78 Accepts]: Start accepts. Automaton has 28892 states and 32777 transitions. Word has length 248 [2021-12-22 08:42:19,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:19,131 INFO L470 AbstractCegarLoop]: Abstraction has 28892 states and 32777 transitions. [2021-12-22 08:42:19,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:19,131 INFO L276 IsEmpty]: Start isEmpty. Operand 28892 states and 32777 transitions. [2021-12-22 08:42:19,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-12-22 08:42:19,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:19,146 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:19,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:19,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:19,356 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash 2059293100, now seen corresponding path program 1 times [2021-12-22 08:42:19,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:19,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136411556] [2021-12-22 08:42:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:19,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:19,436 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 113 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-22 08:42:19,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:19,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136411556] [2021-12-22 08:42:19,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136411556] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:19,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942150013] [2021-12-22 08:42:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:19,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:19,438 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:19,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 08:42:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:19,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:42:19,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-22 08:42:19,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:19,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942150013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:19,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:19,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-22 08:42:19,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574792041] [2021-12-22 08:42:19,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:19,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:19,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:19,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:19,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:19,956 INFO L87 Difference]: Start difference. First operand 28892 states and 32777 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:20,676 INFO L93 Difference]: Finished difference Result 63488 states and 72357 transitions. [2021-12-22 08:42:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:20,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2021-12-22 08:42:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:20,717 INFO L225 Difference]: With dead ends: 63488 [2021-12-22 08:42:20,717 INFO L226 Difference]: Without dead ends: 36222 [2021-12-22 08:42:20,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:20,739 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:20,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 156 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 08:42:20,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36222 states. [2021-12-22 08:42:21,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36222 to 35800. [2021-12-22 08:42:21,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35800 states, 35799 states have (on average 1.1381602838068103) internal successors, (40745), 35799 states have internal predecessors, (40745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35800 states to 35800 states and 40745 transitions. [2021-12-22 08:42:21,275 INFO L78 Accepts]: Start accepts. Automaton has 35800 states and 40745 transitions. Word has length 274 [2021-12-22 08:42:21,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:21,275 INFO L470 AbstractCegarLoop]: Abstraction has 35800 states and 40745 transitions. [2021-12-22 08:42:21,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:21,275 INFO L276 IsEmpty]: Start isEmpty. Operand 35800 states and 40745 transitions. [2021-12-22 08:42:21,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-12-22 08:42:21,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:21,293 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:21,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:21,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-22 08:42:21,504 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:21,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:21,505 INFO L85 PathProgramCache]: Analyzing trace with hash -618021616, now seen corresponding path program 1 times [2021-12-22 08:42:21,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:21,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530979998] [2021-12-22 08:42:21,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:21,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-22 08:42:21,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:21,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530979998] [2021-12-22 08:42:21,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530979998] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:21,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:21,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 08:42:21,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027115868] [2021-12-22 08:42:21,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:21,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:21,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:21,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 08:42:21,570 INFO L87 Difference]: Start difference. First operand 35800 states and 40745 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:22,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:22,261 INFO L93 Difference]: Finished difference Result 77918 states and 88964 transitions. [2021-12-22 08:42:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:22,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2021-12-22 08:42:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:22,309 INFO L225 Difference]: With dead ends: 77918 [2021-12-22 08:42:22,309 INFO L226 Difference]: Without dead ends: 44353 [2021-12-22 08:42:22,336 INFO L932 BasicCegarLoop]: 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 [2021-12-22 08:42:22,336 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 207 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:22,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 163 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 08:42:22,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44353 states. [2021-12-22 08:42:22,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44353 to 44348. [2021-12-22 08:42:22,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44348 states, 44347 states have (on average 1.142106568651769) internal successors, (50649), 44347 states have internal predecessors, (50649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44348 states to 44348 states and 50649 transitions. [2021-12-22 08:42:22,893 INFO L78 Accepts]: Start accepts. Automaton has 44348 states and 50649 transitions. Word has length 275 [2021-12-22 08:42:22,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:22,893 INFO L470 AbstractCegarLoop]: Abstraction has 44348 states and 50649 transitions. [2021-12-22 08:42:22,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:22,893 INFO L276 IsEmpty]: Start isEmpty. Operand 44348 states and 50649 transitions. [2021-12-22 08:42:22,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-12-22 08:42:22,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:22,913 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:22,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 08:42:22,913 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:22,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:22,914 INFO L85 PathProgramCache]: Analyzing trace with hash 819492618, now seen corresponding path program 1 times [2021-12-22 08:42:22,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:22,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874957014] [2021-12-22 08:42:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:22,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-22 08:42:22,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:22,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874957014] [2021-12-22 08:42:22,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874957014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:22,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:22,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:42:22,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357123458] [2021-12-22 08:42:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:22,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 08:42:22,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:22,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 08:42:22,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 08:42:22,997 INFO L87 Difference]: Start difference. First operand 44348 states and 50649 transitions. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:23,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:23,894 INFO L93 Difference]: Finished difference Result 86465 states and 99207 transitions. [2021-12-22 08:42:23,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 08:42:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2021-12-22 08:42:23,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:23,944 INFO L225 Difference]: With dead ends: 86465 [2021-12-22 08:42:23,944 INFO L226 Difference]: Without dead ends: 44555 [2021-12-22 08:42:23,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 08:42:23,962 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 435 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:23,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 62 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-22 08:42:23,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44555 states. [2021-12-22 08:42:24,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44555 to 41507. [2021-12-22 08:42:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41507 states, 41506 states have (on average 1.1329928203151352) internal successors, (47026), 41506 states have internal predecessors, (47026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41507 states to 41507 states and 47026 transitions. [2021-12-22 08:42:24,387 INFO L78 Accepts]: Start accepts. Automaton has 41507 states and 47026 transitions. Word has length 285 [2021-12-22 08:42:24,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:24,387 INFO L470 AbstractCegarLoop]: Abstraction has 41507 states and 47026 transitions. [2021-12-22 08:42:24,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:24,387 INFO L276 IsEmpty]: Start isEmpty. Operand 41507 states and 47026 transitions. [2021-12-22 08:42:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-12-22 08:42:24,404 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:24,404 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 08:42:24,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 08:42:24,405 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:24,405 INFO L85 PathProgramCache]: Analyzing trace with hash 271852871, now seen corresponding path program 1 times [2021-12-22 08:42:24,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:24,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002554196] [2021-12-22 08:42:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:24,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 08:42:24,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:24,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002554196] [2021-12-22 08:42:24,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002554196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:24,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 08:42:24,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 08:42:24,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328158062] [2021-12-22 08:42:24,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:24,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 08:42:24,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:24,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 08:42:24,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 08:42:24,669 INFO L87 Difference]: Start difference. First operand 41507 states and 47026 transitions. Second operand has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:25,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:25,664 INFO L93 Difference]: Finished difference Result 75100 states and 84813 transitions. [2021-12-22 08:42:25,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 08:42:25,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 288 [2021-12-22 08:42:25,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:25,712 INFO L225 Difference]: With dead ends: 75100 [2021-12-22 08:42:25,712 INFO L226 Difference]: Without dead ends: 44174 [2021-12-22 08:42:25,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 08:42:25,737 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 361 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:25,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 137 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 08:42:25,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44174 states. [2021-12-22 08:42:26,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44174 to 41916. [2021-12-22 08:42:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41916 states, 41915 states have (on average 1.1323631158296552) internal successors, (47463), 41915 states have internal predecessors, (47463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41916 states to 41916 states and 47463 transitions. [2021-12-22 08:42:26,331 INFO L78 Accepts]: Start accepts. Automaton has 41916 states and 47463 transitions. Word has length 288 [2021-12-22 08:42:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:26,331 INFO L470 AbstractCegarLoop]: Abstraction has 41916 states and 47463 transitions. [2021-12-22 08:42:26,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:26,331 INFO L276 IsEmpty]: Start isEmpty. Operand 41916 states and 47463 transitions. [2021-12-22 08:42:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-22 08:42:26,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:26,347 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:26,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 08:42:26,347 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:26,348 INFO L85 PathProgramCache]: Analyzing trace with hash 66599051, now seen corresponding path program 1 times [2021-12-22 08:42:26,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:26,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111185877] [2021-12-22 08:42:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:26,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-22 08:42:26,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:26,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111185877] [2021-12-22 08:42:26,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111185877] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:26,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878131042] [2021-12-22 08:42:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:26,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:26,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:26,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:26,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 08:42:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:26,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:42:26,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 08:42:26,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:26,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878131042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:26,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:26,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-22 08:42:26,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894291009] [2021-12-22 08:42:26,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:26,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:26,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:26,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:26,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:26,913 INFO L87 Difference]: Start difference. First operand 41916 states and 47463 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:27,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:27,511 INFO L93 Difference]: Finished difference Result 87491 states and 98853 transitions. [2021-12-22 08:42:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:27,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2021-12-22 08:42:27,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:27,561 INFO L225 Difference]: With dead ends: 87491 [2021-12-22 08:42:27,561 INFO L226 Difference]: Without dead ends: 45374 [2021-12-22 08:42:27,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:27,589 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 187 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:27,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 361 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 08:42:27,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45374 states. [2021-12-22 08:42:28,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45374 to 40698. [2021-12-22 08:42:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40698 states, 40697 states have (on average 1.0836179570975748) internal successors, (44100), 40697 states have internal predecessors, (44100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40698 states to 40698 states and 44100 transitions. [2021-12-22 08:42:28,104 INFO L78 Accepts]: Start accepts. Automaton has 40698 states and 44100 transitions. Word has length 296 [2021-12-22 08:42:28,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:28,104 INFO L470 AbstractCegarLoop]: Abstraction has 40698 states and 44100 transitions. [2021-12-22 08:42:28,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:28,104 INFO L276 IsEmpty]: Start isEmpty. Operand 40698 states and 44100 transitions. [2021-12-22 08:42:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-12-22 08:42:28,120 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:28,120 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 08:42:28,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:28,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:28,321 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:28,322 INFO L85 PathProgramCache]: Analyzing trace with hash -623763948, now seen corresponding path program 1 times [2021-12-22 08:42:28,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:28,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991871377] [2021-12-22 08:42:28,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:28,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 152 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 08:42:28,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:28,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991871377] [2021-12-22 08:42:28,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991871377] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:28,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422369667] [2021-12-22 08:42:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:28,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:28,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:28,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:28,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 08:42:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:28,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:42:28,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-22 08:42:29,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:29,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422369667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:29,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:29,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-22 08:42:29,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572305541] [2021-12-22 08:42:29,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:29,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:29,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:29,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:29,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:29,034 INFO L87 Difference]: Start difference. First operand 40698 states and 44100 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:29,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:29,426 INFO L93 Difference]: Finished difference Result 103572 states and 111996 transitions. [2021-12-22 08:42:29,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:29,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 316 [2021-12-22 08:42:29,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:29,498 INFO L225 Difference]: With dead ends: 103572 [2021-12-22 08:42:29,498 INFO L226 Difference]: Without dead ends: 65315 [2021-12-22 08:42:29,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:29,534 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 178 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:29,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 472 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 08:42:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65315 states. [2021-12-22 08:42:30,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65315 to 63276. [2021-12-22 08:42:30,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63276 states, 63275 states have (on average 1.0787040695377321) internal successors, (68255), 63275 states have internal predecessors, (68255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:30,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63276 states to 63276 states and 68255 transitions. [2021-12-22 08:42:30,340 INFO L78 Accepts]: Start accepts. Automaton has 63276 states and 68255 transitions. Word has length 316 [2021-12-22 08:42:30,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:30,340 INFO L470 AbstractCegarLoop]: Abstraction has 63276 states and 68255 transitions. [2021-12-22 08:42:30,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:30,341 INFO L276 IsEmpty]: Start isEmpty. Operand 63276 states and 68255 transitions. [2021-12-22 08:42:30,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-12-22 08:42:30,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:30,356 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:30,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:30,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:30,558 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:30,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1212668539, now seen corresponding path program 1 times [2021-12-22 08:42:30,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:30,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553192074] [2021-12-22 08:42:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:30,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-12-22 08:42:30,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:30,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553192074] [2021-12-22 08:42:30,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553192074] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:30,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602915855] [2021-12-22 08:42:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:30,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:30,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:30,652 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:30,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-22 08:42:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:31,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 08:42:31,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 08:42:31,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:31,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602915855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:31,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:31,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-22 08:42:31,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323976671] [2021-12-22 08:42:31,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:31,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:31,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:31,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:31,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:31,353 INFO L87 Difference]: Start difference. First operand 63276 states and 68255 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:31,980 INFO L93 Difference]: Finished difference Result 118839 states and 128340 transitions. [2021-12-22 08:42:31,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:31,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 333 [2021-12-22 08:42:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:32,045 INFO L225 Difference]: With dead ends: 118839 [2021-12-22 08:42:32,045 INFO L226 Difference]: Without dead ends: 57392 [2021-12-22 08:42:32,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:32,086 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 162 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:32,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 308 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 08:42:32,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57392 states. [2021-12-22 08:42:32,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57392 to 56977. [2021-12-22 08:42:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56977 states, 56976 states have (on average 1.072293597304128) internal successors, (61095), 56976 states have internal predecessors, (61095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56977 states to 56977 states and 61095 transitions. [2021-12-22 08:42:32,941 INFO L78 Accepts]: Start accepts. Automaton has 56977 states and 61095 transitions. Word has length 333 [2021-12-22 08:42:32,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:32,941 INFO L470 AbstractCegarLoop]: Abstraction has 56977 states and 61095 transitions. [2021-12-22 08:42:32,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:32,941 INFO L276 IsEmpty]: Start isEmpty. Operand 56977 states and 61095 transitions. [2021-12-22 08:42:32,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-12-22 08:42:32,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:32,956 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 08:42:32,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:33,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:33,172 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1056734872, now seen corresponding path program 1 times [2021-12-22 08:42:33,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:33,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052620904] [2021-12-22 08:42:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:33,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 183 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 08:42:33,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:33,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052620904] [2021-12-22 08:42:33,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052620904] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:33,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971150811] [2021-12-22 08:42:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:33,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:33,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:33,290 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:33,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-22 08:42:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:33,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 08:42:33,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-22 08:42:33,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:33,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971150811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:33,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:33,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-22 08:42:33,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598113314] [2021-12-22 08:42:33,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:33,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:33,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:33,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:33,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 08:42:33,817 INFO L87 Difference]: Start difference. First operand 56977 states and 61095 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:34,559 INFO L93 Difference]: Finished difference Result 109084 states and 117104 transitions. [2021-12-22 08:42:34,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:34,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 339 [2021-12-22 08:42:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:34,627 INFO L225 Difference]: With dead ends: 109084 [2021-12-22 08:42:34,627 INFO L226 Difference]: Without dead ends: 56579 [2021-12-22 08:42:34,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 08:42:34,652 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:34,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 58 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 08:42:34,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56579 states. [2021-12-22 08:42:35,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56579 to 56567. [2021-12-22 08:42:35,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56567 states, 56566 states have (on average 1.0722342042923312) internal successors, (60652), 56566 states have internal predecessors, (60652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:35,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56567 states to 56567 states and 60652 transitions. [2021-12-22 08:42:35,462 INFO L78 Accepts]: Start accepts. Automaton has 56567 states and 60652 transitions. Word has length 339 [2021-12-22 08:42:35,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:35,462 INFO L470 AbstractCegarLoop]: Abstraction has 56567 states and 60652 transitions. [2021-12-22 08:42:35,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand 56567 states and 60652 transitions. [2021-12-22 08:42:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-12-22 08:42:35,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 08:42:35,480 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:35,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:35,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-22 08:42:35,681 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 08:42:35,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 08:42:35,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1254391138, now seen corresponding path program 1 times [2021-12-22 08:42:35,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 08:42:35,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343809152] [2021-12-22 08:42:35,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:35,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 08:42:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:35,768 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 147 proven. 6 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-12-22 08:42:35,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 08:42:35,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343809152] [2021-12-22 08:42:35,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343809152] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 08:42:35,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965663622] [2021-12-22 08:42:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 08:42:35,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:35,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 08:42:35,771 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 08:42:35,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-22 08:42:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 08:42:35,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 08:42:35,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 08:42:36,358 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-12-22 08:42:36,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 08:42:36,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965663622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 08:42:36,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 08:42:36,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-22 08:42:36,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737589996] [2021-12-22 08:42:36,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 08:42:36,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 08:42:36,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 08:42:36,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 08:42:36,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:36,360 INFO L87 Difference]: Start difference. First operand 56567 states and 60652 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 08:42:37,155 INFO L93 Difference]: Finished difference Result 111331 states and 119298 transitions. [2021-12-22 08:42:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 08:42:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 362 [2021-12-22 08:42:37,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 08:42:37,156 INFO L225 Difference]: With dead ends: 111331 [2021-12-22 08:42:37,156 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 08:42:37,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 08:42:37,185 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 61 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 08:42:37,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 330 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 08:42:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 08:42:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 08:42:37,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 08:42:37,186 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2021-12-22 08:42:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 08:42:37,186 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 08:42:37,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 08:42:37,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 08:42:37,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 08:42:37,188 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 08:42:37,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-22 08:42:37,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 08:42:37,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 08:42:48,087 INFO L858 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-12-22 08:42:48,087 INFO L858 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,088 INFO L858 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,089 INFO L858 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,089 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,089 INFO L858 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,089 INFO L858 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-12-22 08:42:48,089 INFO L858 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-12-22 08:42:48,089 INFO L858 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-12-22 08:42:48,089 INFO L858 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,089 INFO L858 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-12-22 08:42:48,090 INFO L858 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,091 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,092 INFO L858 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,093 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,094 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-12-22 08:42:48,095 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,096 INFO L858 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-12-22 08:42:48,097 INFO L858 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1546) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-12-22 08:42:48,098 INFO L858 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,099 INFO L858 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,100 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,101 INFO L854 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse10 (= ~a11~0 1))) (let ((.cse1 (= ~a12~0 1)) (.cse11 (<= 2 ~a3~0)) (.cse2 (<= ~a3~0 1)) (.cse8 (<= ~a3~0 0)) (.cse6 (= ~a6~0 0)) (.cse9 (= ~a27~0 1)) (.cse3 (<= 1 ~a3~0)) (.cse5 (<= ~a26~0 0)) (.cse7 (not .cse10)) (.cse12 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse4 (= ~a11~0 ~a6~0))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse5 .cse6 .cse7) (and (<= ~a7~0 0) .cse0 .cse1 .cse5 .cse7) (and .cse0 .cse8 .cse4 .cse9) (and .cse0 .cse10 (= ~a26~0 ~a11~0) .cse9) (and .cse0 .cse11 .cse4 .cse10 .cse9) (and .cse12 .cse0 .cse1 .cse6) (and .cse0 .cse8 .cse9 .cse7) (and .cse12 .cse0 .cse7) (and .cse0 .cse11 .cse5 .cse6) (and .cse0 .cse5 .cse6 .cse9) (and .cse12 .cse0 .cse2 .cse6) (and .cse0 .cse8 .cse6 .cse9) (and .cse0 .cse3 .cse5 .cse7) (and .cse12 .cse0 .cse4)))) [2021-12-22 08:42:48,101 INFO L858 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,101 INFO L858 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,101 INFO L858 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,101 INFO L858 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-12-22 08:42:48,101 INFO L858 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L861 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,102 INFO L858 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L854 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse10 (= ~a11~0 1))) (let ((.cse1 (= ~a12~0 1)) (.cse11 (<= 2 ~a3~0)) (.cse2 (<= ~a3~0 1)) (.cse8 (<= ~a3~0 0)) (.cse6 (= ~a6~0 0)) (.cse9 (= ~a27~0 1)) (.cse3 (<= 1 ~a3~0)) (.cse5 (<= ~a26~0 0)) (.cse7 (not .cse10)) (.cse12 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse4 (= ~a11~0 ~a6~0))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse5 .cse6 .cse7) (and (<= ~a7~0 0) .cse0 .cse1 .cse5 .cse7) (and .cse0 .cse8 .cse4 .cse9) (and .cse0 .cse10 (= ~a26~0 ~a11~0) .cse9) (and .cse0 .cse11 .cse4 .cse10 .cse9) (and .cse12 .cse0 .cse1 .cse6) (and .cse0 .cse8 .cse9 .cse7) (and .cse12 .cse0 .cse7) (and .cse0 .cse11 .cse5 .cse6) (and .cse0 .cse5 .cse6 .cse9) (and .cse12 .cse0 .cse2 .cse6) (and .cse0 .cse8 .cse6 .cse9) (and .cse0 .cse3 .cse5 .cse7) (and .cse12 .cse0 .cse4)))) [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,103 INFO L858 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,104 INFO L858 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-12-22 08:42:48,105 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-12-22 08:42:48,106 INFO L858 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-12-22 08:42:48,107 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,107 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,107 INFO L858 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,107 INFO L858 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,107 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,107 INFO L858 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,107 INFO L858 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,107 INFO L858 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,108 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,109 INFO L858 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,110 INFO L858 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-12-22 08:42:48,111 INFO L858 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,112 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,112 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,112 INFO L858 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,112 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-12-22 08:42:48,112 INFO L858 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-12-22 08:42:48,112 INFO L858 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-12-22 08:42:48,112 INFO L858 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,112 INFO L858 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,113 INFO L858 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-12-22 08:42:48,115 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 08:42:48,116 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 08:42:48,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 08:42:48 BoogieIcfgContainer [2021-12-22 08:42:48,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 08:42:48,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 08:42:48,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 08:42:48,148 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 08:42:48,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:42:01" (3/4) ... [2021-12-22 08:42:48,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 08:42:48,173 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-22 08:42:48,175 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-22 08:42:48,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 08:42:48,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 08:42:48,296 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 08:42:48,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 08:42:48,297 INFO L158 Benchmark]: Toolchain (without parser) took 49324.89ms. Allocated memory was 113.2MB in the beginning and 9.2GB in the end (delta: 9.1GB). Free memory was 80.0MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 6.4GB. Max. memory is 16.1GB. [2021-12-22 08:42:48,297 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 08:42:48,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.11ms. Allocated memory is still 113.2MB. Free memory was 80.0MB in the beginning and 73.1MB in the end (delta: 6.9MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2021-12-22 08:42:48,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.12ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 58.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-22 08:42:48,297 INFO L158 Benchmark]: Boogie Preprocessor took 76.07ms. Allocated memory is still 113.2MB. Free memory was 58.0MB in the beginning and 47.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 08:42:48,298 INFO L158 Benchmark]: RCFGBuilder took 1412.35ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 47.9MB in the beginning and 89.4MB in the end (delta: -41.5MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2021-12-22 08:42:48,298 INFO L158 Benchmark]: TraceAbstraction took 46908.54ms. Allocated memory was 165.7MB in the beginning and 9.2GB in the end (delta: 9.1GB). Free memory was 89.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 6.3GB. Max. memory is 16.1GB. [2021-12-22 08:42:48,298 INFO L158 Benchmark]: Witness Printer took 148.38ms. Allocated memory is still 9.2GB. Free memory was 2.9GB in the beginning and 2.8GB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-12-22 08:42:48,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.11ms. Allocated memory is still 113.2MB. Free memory was 80.0MB in the beginning and 73.1MB in the end (delta: 6.9MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.12ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 58.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.07ms. Allocated memory is still 113.2MB. Free memory was 58.0MB in the beginning and 47.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1412.35ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 47.9MB in the beginning and 89.4MB in the end (delta: -41.5MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * TraceAbstraction took 46908.54ms. Allocated memory was 165.7MB in the beginning and 9.2GB in the end (delta: 9.1GB). Free memory was 89.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 6.3GB. Max. memory is 16.1GB. * Witness Printer took 148.38ms. Allocated memory is still 9.2GB. Free memory was 2.9GB in the beginning and 2.8GB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1546]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.8s, OverallIterations: 23, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5155 SdHoareTripleChecker+Valid, 12.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5155 mSDsluCounter, 4872 SdHoareTripleChecker+Invalid, 9.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 728 mSDsCounter, 2277 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14177 IncrementalHoareTripleChecker+Invalid, 16454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2277 mSolverCounterUnsat, 4144 mSDtfsCounter, 14177 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2695 GetRequests, 2650 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63276occurred in iteration=20, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.8s AutomataMinimizationTime, 23 MinimizatonAttempts, 18350 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 549 NumberOfFragments, 427 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1236 FormulaSimplificationTreeSizeReduction, 5.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 23438 FormulaSimplificationTreeSizeReductionInter, 5.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 8340 NumberOfCodeBlocks, 8340 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 8308 ConstructedInterpolants, 0 QuantifiedInterpolants, 14913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5259 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 32 InterpolantComputations, 23 PerfectInterpolantSequences, 4869/4926 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((((((((a25 == a11 && a5 == 1) && a12 == 1) && a3 <= 1) && 1 <= a3) && a11 == a6) && a26 <= 0) || ((((a5 == 1 && a12 == 1) && a26 <= 0) && a6 == 0) && !(a11 == 1))) || ((((a7 <= 0 && a5 == 1) && a12 == 1) && a26 <= 0) && !(a11 == 1))) || (((a5 == 1 && a3 <= 0) && a11 == a6) && a27 == 1)) || (((a5 == 1 && a11 == 1) && a26 == a11) && a27 == 1)) || ((((a5 == 1 && 2 <= a3) && a11 == a6) && a11 == 1) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a12 == 1) && a6 == 0)) || (((a5 == 1 && a3 <= 0) && a27 == 1) && !(a11 == 1))) || ((a26 == 1 && a5 == 1) && !(a11 == 1))) || (((a5 == 1 && 2 <= a3) && a26 <= 0) && a6 == 0)) || (((a5 == 1 && a26 <= 0) && a6 == 0) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a3 <= 1) && a6 == 0)) || (((a5 == 1 && a3 <= 0) && a6 == 0) && a27 == 1)) || (((a5 == 1 && 1 <= a3) && a26 <= 0) && !(a11 == 1))) || ((a26 == 1 && a5 == 1) && a11 == a6) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((a25 == a11 && a5 == 1) && a12 == 1) && a3 <= 1) && 1 <= a3) && a11 == a6) && a26 <= 0) || ((((a5 == 1 && a12 == 1) && a26 <= 0) && a6 == 0) && !(a11 == 1))) || ((((a7 <= 0 && a5 == 1) && a12 == 1) && a26 <= 0) && !(a11 == 1))) || (((a5 == 1 && a3 <= 0) && a11 == a6) && a27 == 1)) || (((a5 == 1 && a11 == 1) && a26 == a11) && a27 == 1)) || ((((a5 == 1 && 2 <= a3) && a11 == a6) && a11 == 1) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a12 == 1) && a6 == 0)) || (((a5 == 1 && a3 <= 0) && a27 == 1) && !(a11 == 1))) || ((a26 == 1 && a5 == 1) && !(a11 == 1))) || (((a5 == 1 && 2 <= a3) && a26 <= 0) && a6 == 0)) || (((a5 == 1 && a26 <= 0) && a6 == 0) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a3 <= 1) && a6 == 0)) || (((a5 == 1 && a3 <= 0) && a6 == 0) && a27 == 1)) || (((a5 == 1 && 1 <= a3) && a26 <= 0) && !(a11 == 1))) || ((a26 == 1 && a5 == 1) && a11 == a6) RESULT: Ultimate proved your program to be correct! [2021-12-22 08:42:48,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE