./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label30.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC --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 624df73c4f57632c06893f947fe7f316d917f969 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:20:09,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:20:09,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:20:09,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:20:09,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:20:09,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:20:09,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:20:09,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:20:09,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:20:09,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:20:09,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:20:09,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:20:09,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:20:09,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:20:09,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:20:09,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:20:09,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:20:09,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:20:09,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:20:09,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:20:09,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:20:09,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:20:09,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:20:09,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:20:09,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:20:09,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:20:09,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:20:09,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:20:09,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:20:09,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:20:09,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:20:09,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:20:09,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:20:09,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:20:09,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:20:09,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:20:09,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:20:09,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:20:09,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:20:09,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:20:09,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:20:09,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:20:09,457 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:20:09,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:20:09,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:20:09,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:20:09,461 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:20:09,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:20:09,462 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:20:09,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:20:09,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:20:09,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:20:09,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:20:09,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:20:09,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:20:09,474 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:20:09,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:20:09,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:20:09,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:20:09,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:20:09,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:20:09,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:20:09,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:20:09,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:20:09,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:20:09,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:20:09,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:20:09,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:20:09,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:20:09,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:20:09,478 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624df73c4f57632c06893f947fe7f316d917f969 [2021-10-11 00:20:09,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:20:09,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:20:09,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:20:09,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:20:09,842 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:20:09,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem10_label30.c [2021-10-11 00:20:09,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/data/9b17dc383/5397069d83624d888984049e25a50a8c/FLAG26ee68033 [2021-10-11 00:20:10,542 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:20:10,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/sv-benchmarks/c/eca-rers2012/Problem10_label30.c [2021-10-11 00:20:10,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/data/9b17dc383/5397069d83624d888984049e25a50a8c/FLAG26ee68033 [2021-10-11 00:20:10,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/data/9b17dc383/5397069d83624d888984049e25a50a8c [2021-10-11 00:20:10,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:20:10,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:20:10,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:10,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:20:10,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:20:10,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:10" (1/1) ... [2021-10-11 00:20:10,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101921a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:10, skipping insertion in model container [2021-10-11 00:20:10,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:10" (1/1) ... [2021-10-11 00:20:10,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:20:10,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:20:11,144 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/sv-benchmarks/c/eca-rers2012/Problem10_label30.c[4019,4032] [2021-10-11 00:20:11,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:11,340 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:20:11,365 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/sv-benchmarks/c/eca-rers2012/Problem10_label30.c[4019,4032] [2021-10-11 00:20:11,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:11,495 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:20:11,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11 WrapperNode [2021-10-11 00:20:11,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:11,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:11,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:20:11,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:20:11,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:11,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:20:11,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:20:11,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:20:11,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... [2021-10-11 00:20:11,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:20:11,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:20:11,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:20:11,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:20:11,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:20:11,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:20:11,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:20:11,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:20:11,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:20:13,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:20:13,204 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:20:13,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:13 BoogieIcfgContainer [2021-10-11 00:20:13,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:20:13,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:20:13,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:20:13,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:20:13,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:10" (1/3) ... [2021-10-11 00:20:13,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b587a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:13, skipping insertion in model container [2021-10-11 00:20:13,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:11" (2/3) ... [2021-10-11 00:20:13,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b587a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:13, skipping insertion in model container [2021-10-11 00:20:13,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:13" (3/3) ... [2021-10-11 00:20:13,221 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2021-10-11 00:20:13,237 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:20:13,242 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:20:13,258 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:20:13,302 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:20:13,302 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:20:13,302 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:20:13,302 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:20:13,303 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:20:13,303 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:20:13,303 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:20:13,303 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:20:13,329 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2021-10-11 00:20:13,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 00:20:13,339 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:13,340 INFO L422 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] [2021-10-11 00:20:13,340 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:13,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:13,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1089129850, now seen corresponding path program 1 times [2021-10-11 00:20:13,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:13,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771551706] [2021-10-11 00:20:13,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:13,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771551706] [2021-10-11 00:20:13,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:13,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:13,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923728128] [2021-10-11 00:20:13,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:13,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:13,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:13,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:13,695 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2021-10-11 00:20:14,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:14,745 INFO L93 Difference]: Finished difference Result 567 states and 981 transitions. [2021-10-11 00:20:14,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:14,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2021-10-11 00:20:14,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:14,764 INFO L225 Difference]: With dead ends: 567 [2021-10-11 00:20:14,764 INFO L226 Difference]: Without dead ends: 282 [2021-10-11 00:20:14,769 INFO L677 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 [2021-10-11 00:20:14,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-11 00:20:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-11 00:20:14,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2021-10-11 00:20:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2021-10-11 00:20:14,834 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 34 [2021-10-11 00:20:14,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:14,835 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2021-10-11 00:20:14,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2021-10-11 00:20:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-10-11 00:20:14,841 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:14,841 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:14,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:20:14,842 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:14,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:14,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1202022428, now seen corresponding path program 1 times [2021-10-11 00:20:14,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:14,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199448009] [2021-10-11 00:20:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:15,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199448009] [2021-10-11 00:20:15,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:15,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:15,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389733158] [2021-10-11 00:20:15,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:15,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:15,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:15,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:15,143 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand 3 states. [2021-10-11 00:20:15,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:15,875 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2021-10-11 00:20:15,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:15,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2021-10-11 00:20:15,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:15,882 INFO L225 Difference]: With dead ends: 840 [2021-10-11 00:20:15,883 INFO L226 Difference]: Without dead ends: 560 [2021-10-11 00:20:15,886 INFO L677 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 [2021-10-11 00:20:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-11 00:20:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-11 00:20:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2021-10-11 00:20:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2021-10-11 00:20:15,924 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 104 [2021-10-11 00:20:15,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:15,924 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2021-10-11 00:20:15,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2021-10-11 00:20:15,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-11 00:20:15,928 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:15,929 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:15,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:20:15,929 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:15,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:15,930 INFO L82 PathProgramCache]: Analyzing trace with hash -560431948, now seen corresponding path program 1 times [2021-10-11 00:20:15,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:15,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708659773] [2021-10-11 00:20:15,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:16,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708659773] [2021-10-11 00:20:16,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132073454] [2021-10-11 00:20:16,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:16,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:16,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:16,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:16,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:20:16,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188935596] [2021-10-11 00:20:16,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:16,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:16,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:16,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:20:16,548 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2021-10-11 00:20:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:17,306 INFO L93 Difference]: Finished difference Result 1396 states and 1867 transitions. [2021-10-11 00:20:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:17,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2021-10-11 00:20:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:17,315 INFO L225 Difference]: With dead ends: 1396 [2021-10-11 00:20:17,315 INFO L226 Difference]: Without dead ends: 838 [2021-10-11 00:20:17,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:20:17,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2021-10-11 00:20:17,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2021-10-11 00:20:17,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2021-10-11 00:20:17,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1083 transitions. [2021-10-11 00:20:17,365 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1083 transitions. Word has length 109 [2021-10-11 00:20:17,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:17,367 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1083 transitions. [2021-10-11 00:20:17,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:17,367 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1083 transitions. [2021-10-11 00:20:17,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-11 00:20:17,377 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:17,378 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:17,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 00:20:17,593 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:17,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:17,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1284961652, now seen corresponding path program 1 times [2021-10-11 00:20:17,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:17,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132233223] [2021-10-11 00:20:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:17,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132233223] [2021-10-11 00:20:17,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:17,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:17,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203166655] [2021-10-11 00:20:17,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:17,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:17,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:17,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:17,759 INFO L87 Difference]: Start difference. First operand 838 states and 1083 transitions. Second operand 3 states. [2021-10-11 00:20:18,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:18,459 INFO L93 Difference]: Finished difference Result 2230 states and 2835 transitions. [2021-10-11 00:20:18,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:18,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2021-10-11 00:20:18,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:18,468 INFO L225 Difference]: With dead ends: 2230 [2021-10-11 00:20:18,468 INFO L226 Difference]: Without dead ends: 1394 [2021-10-11 00:20:18,470 INFO L677 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 [2021-10-11 00:20:18,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-11 00:20:18,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2021-10-11 00:20:18,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2021-10-11 00:20:18,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1505 transitions. [2021-10-11 00:20:18,502 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1505 transitions. Word has length 125 [2021-10-11 00:20:18,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:18,502 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1505 transitions. [2021-10-11 00:20:18,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1505 transitions. [2021-10-11 00:20:18,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-10-11 00:20:18,504 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:18,504 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:18,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:20:18,505 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:18,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:18,505 INFO L82 PathProgramCache]: Analyzing trace with hash -126231163, now seen corresponding path program 1 times [2021-10-11 00:20:18,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:18,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487184982] [2021-10-11 00:20:18,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:18,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487184982] [2021-10-11 00:20:18,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:18,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:18,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242533175] [2021-10-11 00:20:18,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:18,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:18,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:18,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:18,632 INFO L87 Difference]: Start difference. First operand 1255 states and 1505 transitions. Second operand 3 states. [2021-10-11 00:20:19,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:19,264 INFO L93 Difference]: Finished difference Result 2647 states and 3157 transitions. [2021-10-11 00:20:19,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:19,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2021-10-11 00:20:19,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:19,275 INFO L225 Difference]: With dead ends: 2647 [2021-10-11 00:20:19,275 INFO L226 Difference]: Without dead ends: 1394 [2021-10-11 00:20:19,277 INFO L677 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 [2021-10-11 00:20:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-11 00:20:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-10-11 00:20:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2021-10-11 00:20:19,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1649 transitions. [2021-10-11 00:20:19,317 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1649 transitions. Word has length 126 [2021-10-11 00:20:19,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:19,333 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1649 transitions. [2021-10-11 00:20:19,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:19,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1649 transitions. [2021-10-11 00:20:19,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-10-11 00:20:19,336 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:19,337 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:20:19,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:20:19,337 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:19,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:19,338 INFO L82 PathProgramCache]: Analyzing trace with hash 334684273, now seen corresponding path program 1 times [2021-10-11 00:20:19,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:19,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60444528] [2021-10-11 00:20:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-11 00:20:19,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60444528] [2021-10-11 00:20:19,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:19,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:19,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762067133] [2021-10-11 00:20:19,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:19,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:19,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:19,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:19,494 INFO L87 Difference]: Start difference. First operand 1394 states and 1649 transitions. Second operand 3 states. [2021-10-11 00:20:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:20,177 INFO L93 Difference]: Finished difference Result 2925 states and 3521 transitions. [2021-10-11 00:20:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:20,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2021-10-11 00:20:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:20,189 INFO L225 Difference]: With dead ends: 2925 [2021-10-11 00:20:20,189 INFO L226 Difference]: Without dead ends: 1672 [2021-10-11 00:20:20,192 INFO L677 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 [2021-10-11 00:20:20,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2021-10-11 00:20:20,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2021-10-11 00:20:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2021-10-11 00:20:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1952 transitions. [2021-10-11 00:20:20,236 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1952 transitions. Word has length 192 [2021-10-11 00:20:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:20,237 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1952 transitions. [2021-10-11 00:20:20,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:20,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1952 transitions. [2021-10-11 00:20:20,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-10-11 00:20:20,242 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:20,242 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:20:20,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:20:20,243 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:20,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:20,243 INFO L82 PathProgramCache]: Analyzing trace with hash -624322341, now seen corresponding path program 1 times [2021-10-11 00:20:20,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:20,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244298713] [2021-10-11 00:20:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:20,509 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-10-11 00:20:20,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244298713] [2021-10-11 00:20:20,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448105885] [2021-10-11 00:20:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:20,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:20,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:20,900 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-10-11 00:20:20,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:20,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-11 00:20:20,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36541566] [2021-10-11 00:20:20,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:20,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:20,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:20,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:20:20,903 INFO L87 Difference]: Start difference. First operand 1672 states and 1952 transitions. Second operand 3 states. [2021-10-11 00:20:21,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:21,554 INFO L93 Difference]: Finished difference Result 2508 states and 2933 transitions. [2021-10-11 00:20:21,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:21,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2021-10-11 00:20:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:21,572 INFO L225 Difference]: With dead ends: 2508 [2021-10-11 00:20:21,572 INFO L226 Difference]: Without dead ends: 2506 [2021-10-11 00:20:21,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:20:21,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-10-11 00:20:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 1811. [2021-10-11 00:20:21,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2021-10-11 00:20:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2141 transitions. [2021-10-11 00:20:21,632 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2141 transitions. Word has length 193 [2021-10-11 00:20:21,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:21,633 INFO L481 AbstractCegarLoop]: Abstraction has 1811 states and 2141 transitions. [2021-10-11 00:20:21,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:21,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2141 transitions. [2021-10-11 00:20:21,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-10-11 00:20:21,637 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:21,638 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:20:21,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:21,865 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:21,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:21,865 INFO L82 PathProgramCache]: Analyzing trace with hash 543736396, now seen corresponding path program 1 times [2021-10-11 00:20:21,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:21,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244145030] [2021-10-11 00:20:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:22,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244145030] [2021-10-11 00:20:22,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:22,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:22,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415184750] [2021-10-11 00:20:22,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:22,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:22,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:22,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:22,022 INFO L87 Difference]: Start difference. First operand 1811 states and 2141 transitions. Second operand 3 states. [2021-10-11 00:20:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:22,656 INFO L93 Difference]: Finished difference Result 3898 states and 4694 transitions. [2021-10-11 00:20:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:22,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2021-10-11 00:20:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:22,669 INFO L225 Difference]: With dead ends: 3898 [2021-10-11 00:20:22,669 INFO L226 Difference]: Without dead ends: 2228 [2021-10-11 00:20:22,672 INFO L677 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 [2021-10-11 00:20:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-10-11 00:20:22,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2089. [2021-10-11 00:20:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2021-10-11 00:20:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2440 transitions. [2021-10-11 00:20:22,726 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2440 transitions. Word has length 194 [2021-10-11 00:20:22,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:22,727 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2440 transitions. [2021-10-11 00:20:22,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2440 transitions. [2021-10-11 00:20:22,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-11 00:20:22,733 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:22,734 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-10-11 00:20:22,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:20:22,734 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:22,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:22,735 INFO L82 PathProgramCache]: Analyzing trace with hash -556479966, now seen corresponding path program 1 times [2021-10-11 00:20:22,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:22,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28830972] [2021-10-11 00:20:22,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-11 00:20:23,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28830972] [2021-10-11 00:20:23,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:23,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:20:23,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538016760] [2021-10-11 00:20:23,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:20:23,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:23,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:20:23,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:20:23,107 INFO L87 Difference]: Start difference. First operand 2089 states and 2440 transitions. Second operand 7 states. [2021-10-11 00:20:23,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:23,771 INFO L93 Difference]: Finished difference Result 4092 states and 4789 transitions. [2021-10-11 00:20:23,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:20:23,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2021-10-11 00:20:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:23,783 INFO L225 Difference]: With dead ends: 4092 [2021-10-11 00:20:23,783 INFO L226 Difference]: Without dead ends: 2089 [2021-10-11 00:20:23,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:20:23,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-10-11 00:20:23,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2021-10-11 00:20:23,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2021-10-11 00:20:23,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2429 transitions. [2021-10-11 00:20:23,836 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2429 transitions. Word has length 246 [2021-10-11 00:20:23,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:23,836 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2429 transitions. [2021-10-11 00:20:23,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:20:23,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2429 transitions. [2021-10-11 00:20:23,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-10-11 00:20:23,842 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:23,843 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-10-11 00:20:23,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:20:23,843 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:23,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:23,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1050013116, now seen corresponding path program 1 times [2021-10-11 00:20:23,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:23,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915067790] [2021-10-11 00:20:23,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:24,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915067790] [2021-10-11 00:20:24,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:24,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:20:24,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836658550] [2021-10-11 00:20:24,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:20:24,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:24,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:20:24,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:20:24,111 INFO L87 Difference]: Start difference. First operand 2089 states and 2429 transitions. Second operand 4 states. [2021-10-11 00:20:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:25,064 INFO L93 Difference]: Finished difference Result 4315 states and 5054 transitions. [2021-10-11 00:20:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:20:25,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 282 [2021-10-11 00:20:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:25,079 INFO L225 Difference]: With dead ends: 4315 [2021-10-11 00:20:25,079 INFO L226 Difference]: Without dead ends: 2367 [2021-10-11 00:20:25,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:20:25,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2021-10-11 00:20:25,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2367. [2021-10-11 00:20:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2367 states. [2021-10-11 00:20:25,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 2696 transitions. [2021-10-11 00:20:25,146 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 2696 transitions. Word has length 282 [2021-10-11 00:20:25,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:25,147 INFO L481 AbstractCegarLoop]: Abstraction has 2367 states and 2696 transitions. [2021-10-11 00:20:25,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:20:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 2696 transitions. [2021-10-11 00:20:25,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-10-11 00:20:25,154 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:25,155 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:25,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:20:25,155 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:25,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1732473944, now seen corresponding path program 1 times [2021-10-11 00:20:25,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:25,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141518981] [2021-10-11 00:20:25,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 20 proven. 75 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-10-11 00:20:25,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141518981] [2021-10-11 00:20:25,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068143015] [2021-10-11 00:20:25,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:25,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:25,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-10-11 00:20:26,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:26,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:20:26,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035236613] [2021-10-11 00:20:26,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:26,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:26,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:26,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:20:26,062 INFO L87 Difference]: Start difference. First operand 2367 states and 2696 transitions. Second operand 3 states. [2021-10-11 00:20:26,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:26,727 INFO L93 Difference]: Finished difference Result 3203 states and 3591 transitions. [2021-10-11 00:20:26,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:26,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 295 [2021-10-11 00:20:26,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:26,746 INFO L225 Difference]: With dead ends: 3203 [2021-10-11 00:20:26,746 INFO L226 Difference]: Without dead ends: 3201 [2021-10-11 00:20:26,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:20:26,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2021-10-11 00:20:26,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 2228. [2021-10-11 00:20:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2021-10-11 00:20:26,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2538 transitions. [2021-10-11 00:20:26,832 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2538 transitions. Word has length 295 [2021-10-11 00:20:26,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:26,833 INFO L481 AbstractCegarLoop]: Abstraction has 2228 states and 2538 transitions. [2021-10-11 00:20:26,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:26,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2538 transitions. [2021-10-11 00:20:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-10-11 00:20:26,842 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:26,843 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:27,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-11 00:20:27,057 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:27,057 INFO L82 PathProgramCache]: Analyzing trace with hash -993176621, now seen corresponding path program 1 times [2021-10-11 00:20:27,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:27,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733479381] [2021-10-11 00:20:27,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:27,846 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 10 proven. 261 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-10-11 00:20:27,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733479381] [2021-10-11 00:20:27,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728291565] [2021-10-11 00:20:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:27,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:20:27,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:28,267 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:20:28,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:20:28,342 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:20:28,347 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:20:28,363 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-10-11 00:20:28,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:20:28,389 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:20:28,393 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:20:28,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:20:28,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:20:28,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:20:28,436 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:20:28,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:20:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-10-11 00:20:28,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:28,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-11 00:20:28,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558474227] [2021-10-11 00:20:28,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:28,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:28,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:28,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:20:28,737 INFO L87 Difference]: Start difference. First operand 2228 states and 2538 transitions. Second operand 3 states. [2021-10-11 00:20:29,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:29,677 INFO L93 Difference]: Finished difference Result 5008 states and 5743 transitions. [2021-10-11 00:20:29,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:29,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 331 [2021-10-11 00:20:29,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:29,678 INFO L225 Difference]: With dead ends: 5008 [2021-10-11 00:20:29,678 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:20:29,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:20:29,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:20:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:20:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:20:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:20:29,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 331 [2021-10-11 00:20:29,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:29,684 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:20:29,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:20:29,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:20:29,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:29,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:20:30,238 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2021-10-11 00:20:30,504 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2021-10-11 00:20:30,510 INFO L262 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-11 00:20:30,510 INFO L262 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-11 00:20:30,510 INFO L262 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-11 00:20:30,510 INFO L262 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-11 00:20:30,510 INFO L262 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-11 00:20:30,510 INFO L262 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-11 00:20:30,510 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-11 00:20:30,511 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,512 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-11 00:20:30,513 INFO L262 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-11 00:20:30,514 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,515 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-11 00:20:30,516 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-11 00:20:30,517 INFO L262 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-11 00:20:30,518 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-11 00:20:30,519 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-11 00:20:30,519 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-11 00:20:30,519 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-11 00:20:30,519 INFO L258 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse1 (< (div (+ (* ~a1~0 (- 1)) 206) (- 89)) 1)) (.cse5 (<= 8 ~a19~0)) (.cse4 (= ~a10~0 1)) (.cse7 (<= 9 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse6 (= ~a10~0 0)) (.cse2 (= ~a12~0 0)) (.cse3 (<= ~a19~0 9))) (or (and .cse0 .cse1 .cse2 .cse3) (and (< 218 ~a1~0) .cse4 .cse0 .cse2) (and .cse5 .cse0 (= ~a10~0 2) .cse2 .cse3) (and .cse0 .cse6 .cse1 .cse2) (and .cse7 .cse0 .cse2 .cse3) (and .cse5 .cse0 .cse2 .cse3 (= ~a10~0 4)) (and (= ~a19~0 8) .cse4 .cse0 .cse2) (and .cse4 .cse7 .cse0 .cse2) (and .cse0 .cse6 .cse2 .cse3))) [2021-10-11 00:20:30,519 INFO L262 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-11 00:20:30,519 INFO L262 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-11 00:20:30,519 INFO L262 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-11 00:20:30,519 INFO L262 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-11 00:20:30,519 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-11 00:20:30,520 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-11 00:20:30,523 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-11 00:20:30,523 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-11 00:20:30,523 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-11 00:20:30,524 INFO L262 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-11 00:20:30,524 INFO L262 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-11 00:20:30,524 INFO L265 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-11 00:20:30,524 INFO L262 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-11 00:20:30,524 INFO L262 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-11 00:20:30,524 INFO L262 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-11 00:20:30,525 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:20:30,525 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,525 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,525 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,525 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,525 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,525 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-11 00:20:30,526 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-11 00:20:30,526 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-11 00:20:30,526 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-11 00:20:30,526 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-11 00:20:30,526 INFO L262 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-11 00:20:30,526 INFO L262 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-11 00:20:30,527 INFO L262 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-11 00:20:30,527 INFO L262 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-11 00:20:30,527 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,527 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,527 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,527 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,527 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:20:30,528 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,528 INFO L262 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-11 00:20:30,528 INFO L262 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-11 00:20:30,528 INFO L262 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-11 00:20:30,528 INFO L262 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-11 00:20:30,528 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-11 00:20:30,528 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-11 00:20:30,529 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-11 00:20:30,529 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-11 00:20:30,529 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-11 00:20:30,529 INFO L262 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-11 00:20:30,529 INFO L262 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-11 00:20:30,529 INFO L262 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-11 00:20:30,530 INFO L258 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse1 (< (div (+ (* ~a1~0 (- 1)) 206) (- 89)) 1)) (.cse5 (<= 8 ~a19~0)) (.cse4 (= ~a10~0 1)) (.cse7 (<= 9 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse6 (= ~a10~0 0)) (.cse2 (= ~a12~0 0)) (.cse3 (<= ~a19~0 9))) (or (and .cse0 .cse1 .cse2 .cse3) (and (< 218 ~a1~0) .cse4 .cse0 .cse2) (and .cse5 .cse0 (= ~a10~0 2) .cse2 .cse3) (and .cse0 .cse6 .cse1 .cse2) (and .cse7 .cse0 .cse2 .cse3) (and .cse5 .cse0 .cse2 .cse3 (= ~a10~0 4)) (and (= ~a19~0 8) .cse4 .cse0 .cse2) (and .cse4 .cse7 .cse0 .cse2) (and .cse0 .cse6 .cse2 .cse3))) [2021-10-11 00:20:30,530 INFO L262 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-11 00:20:30,530 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,530 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,530 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,530 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,531 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-11 00:20:30,531 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,531 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,531 INFO L262 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-11 00:20:30,531 INFO L262 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-11 00:20:30,531 INFO L262 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-11 00:20:30,532 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-11 00:20:30,532 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-11 00:20:30,532 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-11 00:20:30,532 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-11 00:20:30,532 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-11 00:20:30,532 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-11 00:20:30,532 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:20:30,533 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 116) no Hoare annotation was computed. [2021-10-11 00:20:30,533 INFO L262 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-11 00:20:30,533 INFO L262 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-11 00:20:30,533 INFO L262 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-11 00:20:30,533 INFO L262 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-11 00:20:30,533 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,534 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,534 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,534 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,534 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,534 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:20:30,534 INFO L262 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-11 00:20:30,534 INFO L262 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-11 00:20:30,535 INFO L262 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-11 00:20:30,535 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-11 00:20:30,535 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-11 00:20:30,535 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-11 00:20:30,535 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-11 00:20:30,535 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-11 00:20:30,535 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-11 00:20:30,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:20:30 BoogieIcfgContainer [2021-10-11 00:20:30,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:20:30,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:20:30,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:20:30,572 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:20:30,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:13" (3/4) ... [2021-10-11 00:20:30,576 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:20:30,620 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:20:30,621 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:20:30,623 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:20:30,624 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:20:30,783 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664aad77-ac3e-49fb-9a35-f2bf6c1b9d27/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:20:30,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:20:30,785 INFO L168 Benchmark]: Toolchain (without parser) took 19913.17 ms. Allocated memory was 100.7 MB in the beginning and 501.2 MB in the end (delta: 400.6 MB). Free memory was 66.5 MB in the beginning and 184.7 MB in the end (delta: -118.3 MB). Peak memory consumption was 282.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:30,785 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 77.6 MB. Free memory was 50.8 MB in the beginning and 50.7 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:30,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.91 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 62.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:30,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.51 ms. Allocated memory is still 100.7 MB. Free memory was 62.4 MB in the beginning and 54.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:30,786 INFO L168 Benchmark]: Boogie Preprocessor took 77.73 ms. Allocated memory is still 100.7 MB. Free memory was 54.6 MB in the beginning and 49.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:30,787 INFO L168 Benchmark]: RCFGBuilder took 1542.10 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 49.5 MB in the beginning and 89.3 MB in the end (delta: -39.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:30,787 INFO L168 Benchmark]: TraceAbstraction took 17359.40 ms. Allocated memory was 123.7 MB in the beginning and 501.2 MB in the end (delta: 377.5 MB). Free memory was 88.4 MB in the beginning and 199.7 MB in the end (delta: -111.2 MB). Peak memory consumption was 267.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:30,788 INFO L168 Benchmark]: Witness Printer took 212.29 ms. Allocated memory is still 501.2 MB. Free memory was 199.7 MB in the beginning and 184.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:30,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 77.6 MB. Free memory was 50.8 MB in the beginning and 50.7 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 623.91 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 62.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.51 ms. Allocated memory is still 100.7 MB. Free memory was 62.4 MB in the beginning and 54.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.73 ms. Allocated memory is still 100.7 MB. Free memory was 54.6 MB in the beginning and 49.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1542.10 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 49.5 MB in the beginning and 89.3 MB in the end (delta: -39.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17359.40 ms. Allocated memory was 123.7 MB in the beginning and 501.2 MB in the end (delta: 377.5 MB). Free memory was 88.4 MB in the beginning and 199.7 MB in the end (delta: -111.2 MB). Peak memory consumption was 267.0 MB. Max. memory is 16.1 GB. * Witness Printer took 212.29 ms. Allocated memory is still 501.2 MB. Free memory was 199.7 MB in the beginning and 184.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 116]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((((((14 == a4 && (a1 * -1 + 206) / -89 < 1) && a12 == 0) && a19 <= 9) || (((218 < a1 && a10 == 1) && 14 == a4) && a12 == 0)) || ((((8 <= a19 && 14 == a4) && a10 == 2) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 0) && (a1 * -1 + 206) / -89 < 1) && a12 == 0)) || (((9 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9)) || ((((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9) && a10 == 4)) || (((a19 == 8 && a10 == 1) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 9 <= a19) && 14 == a4) && a12 == 0)) || (((14 == a4 && a10 == 0) && a12 == 0) && a19 <= 9) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((14 == a4 && (a1 * -1 + 206) / -89 < 1) && a12 == 0) && a19 <= 9) || (((218 < a1 && a10 == 1) && 14 == a4) && a12 == 0)) || ((((8 <= a19 && 14 == a4) && a10 == 2) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 0) && (a1 * -1 + 206) / -89 < 1) && a12 == 0)) || (((9 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9)) || ((((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9) && a10 == 4)) || (((a19 == 8 && a10 == 1) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 9 <= a19) && 14 == a4) && a12 == 0)) || (((14 == a4 && a10 == 0) && a12 == 0) && a19 <= 9) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.6s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 947 SDtfs, 1437 SDslu, 58 SDs, 0 SdLazy, 4654 SolverSat, 718 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 964 GetRequests, 935 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2367occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1946 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 273 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1700 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 282 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 3159 NumberOfCodeBlocks, 3159 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3143 ConstructedInterpolants, 0 QuantifiedInterpolants, 3479805 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1424 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 2154/2553 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...