./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-2.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_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/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_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/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_05a3f67b-a797-4d15-900d-5f695dbc02d7/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 f8927ec5890c81ea18bc2a9cefa5e837a618c47d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:20:02,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:20:02,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:20:02,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:20:02,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:20:02,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:20:02,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:20:02,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:20:02,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:20:02,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:20:02,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:20:02,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:20:02,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:20:02,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:20:02,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:20:02,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:20:02,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:20:02,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:20:02,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:20:02,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:20:02,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:20:02,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:20:02,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:20:02,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:20:02,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:20:02,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:20:02,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:20:02,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:20:02,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:20:02,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:20:02,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:20:02,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:20:02,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:20:02,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:20:02,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:20:02,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:20:02,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:20:02,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:20:02,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:20:02,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:20:02,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:20:02,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:20:02,219 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:20:02,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:20:02,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:20:02,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:20:02,222 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:20:02,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:20:02,223 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:20:02,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:20:02,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:20:02,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:20:02,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:20:02,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:20:02,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:20:02,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:20:02,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:20:02,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:20:02,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:20:02,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:20:02,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:20:02,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:20:02,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:20:02,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:20:02,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:20:02,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:20:02,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:20:02,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:20:02,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:20:02,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:20:02,229 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_05a3f67b-a797-4d15-900d-5f695dbc02d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8927ec5890c81ea18bc2a9cefa5e837a618c47d [2021-10-11 00:20:02,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:20:02,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:20:02,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:20:02,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:20:02,576 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:20:02,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-2.c [2021-10-11 00:20:02,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/data/5526139e0/3d7b866a049a48a48abfda35584596fc/FLAG45a54bd06 [2021-10-11 00:20:03,216 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:20:03,217 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-2.c [2021-10-11 00:20:03,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/data/5526139e0/3d7b866a049a48a48abfda35584596fc/FLAG45a54bd06 [2021-10-11 00:20:03,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/data/5526139e0/3d7b866a049a48a48abfda35584596fc [2021-10-11 00:20:03,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:20:03,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:20:03,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:03,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:20:03,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:20:03,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:03" (1/1) ... [2021-10-11 00:20:03,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be67c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:03, skipping insertion in model container [2021-10-11 00:20:03,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:03" (1/1) ... [2021-10-11 00:20:03,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:20:03,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:20:03,955 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_05a3f67b-a797-4d15-900d-5f695dbc02d7/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-2.c[35431,35444] [2021-10-11 00:20:03,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:03,970 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:20:04,034 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_05a3f67b-a797-4d15-900d-5f695dbc02d7/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-2.c[35431,35444] [2021-10-11 00:20:04,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:04,059 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:20:04,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04 WrapperNode [2021-10-11 00:20:04,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:04,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:04,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:20:04,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:20:04,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:04,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:20:04,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:20:04,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:20:04,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... [2021-10-11 00:20:04,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:20:04,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:20:04,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:20:04,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:20:04,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/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 00:20:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:20:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:20:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:20:04,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:20:04,519 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 00:20:05,238 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-11 00:20:05,238 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-11 00:20:05,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:20:05,261 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:20:05,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:05 BoogieIcfgContainer [2021-10-11 00:20:05,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:20:05,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:20:05,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:20:05,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:20:05,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:03" (1/3) ... [2021-10-11 00:20:05,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462f5d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:05, skipping insertion in model container [2021-10-11 00:20:05,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:04" (2/3) ... [2021-10-11 00:20:05,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462f5d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:05, skipping insertion in model container [2021-10-11 00:20:05,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:05" (3/3) ... [2021-10-11 00:20:05,276 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2021-10-11 00:20:05,292 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:20:05,297 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:20:05,310 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:20:05,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:20:05,356 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:20:05,356 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:20:05,356 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:20:05,356 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:20:05,357 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:20:05,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:20:05,357 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:20:05,380 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2021-10-11 00:20:05,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:20:05,390 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:05,391 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] [2021-10-11 00:20:05,391 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:05,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2021-10-11 00:20:05,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:05,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628101531] [2021-10-11 00:20:05,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:05,759 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 00:20:05,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628101531] [2021-10-11 00:20:05,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:05,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:05,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794911241] [2021-10-11 00:20:05,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:05,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:05,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:05,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:05,790 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2021-10-11 00:20:06,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:06,044 INFO L93 Difference]: Finished difference Result 252 states and 427 transitions. [2021-10-11 00:20:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:06,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:20:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:06,070 INFO L225 Difference]: With dead ends: 252 [2021-10-11 00:20:06,077 INFO L226 Difference]: Without dead ends: 115 [2021-10-11 00:20:06,081 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 00:20:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-11 00:20:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-11 00:20:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-10-11 00:20:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-10-11 00:20:06,140 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-10-11 00:20:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:06,141 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-10-11 00:20:06,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:06,141 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-10-11 00:20:06,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 00:20:06,143 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:06,143 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:06,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:20:06,143 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:06,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:06,144 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2021-10-11 00:20:06,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:06,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227421817] [2021-10-11 00:20:06,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:06,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227421817] [2021-10-11 00:20:06,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:06,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:06,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213664608] [2021-10-11 00:20:06,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:06,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:06,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:06,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:06,237 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2021-10-11 00:20:06,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:06,394 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2021-10-11 00:20:06,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:06,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-10-11 00:20:06,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:06,402 INFO L225 Difference]: With dead ends: 238 [2021-10-11 00:20:06,402 INFO L226 Difference]: Without dead ends: 133 [2021-10-11 00:20:06,404 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 00:20:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-11 00:20:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2021-10-11 00:20:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-10-11 00:20:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2021-10-11 00:20:06,434 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2021-10-11 00:20:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:06,434 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2021-10-11 00:20:06,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2021-10-11 00:20:06,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 00:20:06,440 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:06,441 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-10-11 00:20:06,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:20:06,441 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:06,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:06,441 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2021-10-11 00:20:06,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:06,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633141269] [2021-10-11 00:20:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:20:06,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633141269] [2021-10-11 00:20:06,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:06,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:06,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075075507] [2021-10-11 00:20:06,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:06,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:06,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:06,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:06,527 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2021-10-11 00:20:06,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:06,696 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2021-10-11 00:20:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:06,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2021-10-11 00:20:06,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:06,700 INFO L225 Difference]: With dead ends: 271 [2021-10-11 00:20:06,700 INFO L226 Difference]: Without dead ends: 151 [2021-10-11 00:20:06,704 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 00:20:06,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-11 00:20:06,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2021-10-11 00:20:06,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2021-10-11 00:20:06,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2021-10-11 00:20:06,726 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2021-10-11 00:20:06,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:06,727 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2021-10-11 00:20:06,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:06,727 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2021-10-11 00:20:06,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-11 00:20:06,729 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:06,729 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:06,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:20:06,729 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:06,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:06,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1231505257, now seen corresponding path program 1 times [2021-10-11 00:20:06,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:06,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472400095] [2021-10-11 00:20:06,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-11 00:20:06,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472400095] [2021-10-11 00:20:06,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:06,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:06,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557483037] [2021-10-11 00:20:06,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:06,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:06,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:06,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:06,858 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2021-10-11 00:20:07,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:07,028 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2021-10-11 00:20:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:07,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2021-10-11 00:20:07,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:07,032 INFO L225 Difference]: With dead ends: 335 [2021-10-11 00:20:07,032 INFO L226 Difference]: Without dead ends: 197 [2021-10-11 00:20:07,034 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 00:20:07,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-11 00:20:07,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2021-10-11 00:20:07,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2021-10-11 00:20:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2021-10-11 00:20:07,059 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2021-10-11 00:20:07,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:07,060 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2021-10-11 00:20:07,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:07,060 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2021-10-11 00:20:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-11 00:20:07,062 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:07,062 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:07,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:20:07,063 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:07,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:07,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1258023705, now seen corresponding path program 1 times [2021-10-11 00:20:07,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:07,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58798205] [2021-10-11 00:20:07,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-11 00:20:07,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58798205] [2021-10-11 00:20:07,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:07,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:07,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991757695] [2021-10-11 00:20:07,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:07,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:07,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:07,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:07,188 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2021-10-11 00:20:07,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:07,337 INFO L93 Difference]: Finished difference Result 391 states and 557 transitions. [2021-10-11 00:20:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:07,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2021-10-11 00:20:07,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:07,340 INFO L225 Difference]: With dead ends: 391 [2021-10-11 00:20:07,340 INFO L226 Difference]: Without dead ends: 213 [2021-10-11 00:20:07,341 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 00:20:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-11 00:20:07,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 207. [2021-10-11 00:20:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2021-10-11 00:20:07,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2021-10-11 00:20:07,358 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2021-10-11 00:20:07,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:07,360 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2021-10-11 00:20:07,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:07,361 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2021-10-11 00:20:07,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-11 00:20:07,368 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:07,368 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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 00:20:07,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:20:07,369 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:07,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:07,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1378844437, now seen corresponding path program 1 times [2021-10-11 00:20:07,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:07,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055283754] [2021-10-11 00:20:07,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-11 00:20:07,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055283754] [2021-10-11 00:20:07,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:07,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:07,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693197751] [2021-10-11 00:20:07,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:07,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:07,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:07,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:07,497 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2021-10-11 00:20:07,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:07,637 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2021-10-11 00:20:07,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:07,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2021-10-11 00:20:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:07,642 INFO L225 Difference]: With dead ends: 428 [2021-10-11 00:20:07,642 INFO L226 Difference]: Without dead ends: 231 [2021-10-11 00:20:07,643 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 00:20:07,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-11 00:20:07,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2021-10-11 00:20:07,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2021-10-11 00:20:07,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2021-10-11 00:20:07,659 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2021-10-11 00:20:07,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:07,660 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-10-11 00:20:07,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2021-10-11 00:20:07,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-11 00:20:07,663 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:07,663 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-11 00:20:07,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:20:07,664 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:07,666 INFO L82 PathProgramCache]: Analyzing trace with hash 311084899, now seen corresponding path program 1 times [2021-10-11 00:20:07,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:07,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279025370] [2021-10-11 00:20:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:07,783 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-11 00:20:07,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279025370] [2021-10-11 00:20:07,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:07,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:07,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699802581] [2021-10-11 00:20:07,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:07,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:07,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:07,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:07,786 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2021-10-11 00:20:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:07,840 INFO L93 Difference]: Finished difference Result 660 states and 910 transitions. [2021-10-11 00:20:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:07,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2021-10-11 00:20:07,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:07,844 INFO L225 Difference]: With dead ends: 660 [2021-10-11 00:20:07,844 INFO L226 Difference]: Without dead ends: 442 [2021-10-11 00:20:07,845 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 00:20:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-10-11 00:20:07,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-10-11 00:20:07,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2021-10-11 00:20:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 605 transitions. [2021-10-11 00:20:07,863 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 605 transitions. Word has length 105 [2021-10-11 00:20:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:07,864 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 605 transitions. [2021-10-11 00:20:07,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 605 transitions. [2021-10-11 00:20:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-11 00:20:07,866 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:07,866 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-11 00:20:07,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:20:07,866 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:07,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:07,867 INFO L82 PathProgramCache]: Analyzing trace with hash 990357153, now seen corresponding path program 1 times [2021-10-11 00:20:07,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:07,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605131463] [2021-10-11 00:20:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-11 00:20:07,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605131463] [2021-10-11 00:20:07,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:07,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:07,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147698064] [2021-10-11 00:20:07,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:07,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:07,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:07,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:07,944 INFO L87 Difference]: Start difference. First operand 442 states and 605 transitions. Second operand 3 states. [2021-10-11 00:20:07,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:07,977 INFO L93 Difference]: Finished difference Result 895 states and 1224 transitions. [2021-10-11 00:20:07,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:07,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2021-10-11 00:20:07,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:07,981 INFO L225 Difference]: With dead ends: 895 [2021-10-11 00:20:07,981 INFO L226 Difference]: Without dead ends: 463 [2021-10-11 00:20:07,982 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 00:20:07,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-10-11 00:20:07,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2021-10-11 00:20:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2021-10-11 00:20:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 632 transitions. [2021-10-11 00:20:07,999 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 632 transitions. Word has length 105 [2021-10-11 00:20:07,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:07,999 INFO L481 AbstractCegarLoop]: Abstraction has 463 states and 632 transitions. [2021-10-11 00:20:08,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:08,000 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 632 transitions. [2021-10-11 00:20:08,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-11 00:20:08,002 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:08,002 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-11 00:20:08,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:20:08,002 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:08,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:08,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1829390815, now seen corresponding path program 1 times [2021-10-11 00:20:08,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:08,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495964198] [2021-10-11 00:20:08,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:08,050 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-11 00:20:08,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495964198] [2021-10-11 00:20:08,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:08,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:08,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541140167] [2021-10-11 00:20:08,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:08,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:08,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:08,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:08,057 INFO L87 Difference]: Start difference. First operand 463 states and 632 transitions. Second operand 3 states. [2021-10-11 00:20:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:08,101 INFO L93 Difference]: Finished difference Result 943 states and 1285 transitions. [2021-10-11 00:20:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:08,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2021-10-11 00:20:08,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:08,105 INFO L225 Difference]: With dead ends: 943 [2021-10-11 00:20:08,105 INFO L226 Difference]: Without dead ends: 490 [2021-10-11 00:20:08,106 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 00:20:08,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-10-11 00:20:08,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2021-10-11 00:20:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2021-10-11 00:20:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 666 transitions. [2021-10-11 00:20:08,127 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 666 transitions. Word has length 105 [2021-10-11 00:20:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:08,127 INFO L481 AbstractCegarLoop]: Abstraction has 490 states and 666 transitions. [2021-10-11 00:20:08,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:08,128 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 666 transitions. [2021-10-11 00:20:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-11 00:20:08,129 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:08,129 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-10-11 00:20:08,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:20:08,130 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:20:08,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:08,135 INFO L82 PathProgramCache]: Analyzing trace with hash -915547054, now seen corresponding path program 1 times [2021-10-11 00:20:08,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:08,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918650434] [2021-10-11 00:20:08,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:08,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:08,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:08,340 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:08,340 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:20:08,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:20:08,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:20:08 BoogieIcfgContainer [2021-10-11 00:20:08,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:20:08,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:20:08,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:20:08,442 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:20:08,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:05" (3/4) ... [2021-10-11 00:20:08,444 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:20:08,549 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05a3f67b-a797-4d15-900d-5f695dbc02d7/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:20:08,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:20:08,551 INFO L168 Benchmark]: Toolchain (without parser) took 4995.02 ms. Allocated memory was 102.8 MB in the beginning and 161.5 MB in the end (delta: 58.7 MB). Free memory was 68.8 MB in the beginning and 93.2 MB in the end (delta: -24.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,551 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 102.8 MB. Free memory is still 58.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:08,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.59 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 73.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.08 ms. Allocated memory is still 102.8 MB. Free memory was 73.5 MB in the beginning and 70.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,552 INFO L168 Benchmark]: Boogie Preprocessor took 52.07 ms. Allocated memory is still 102.8 MB. Free memory was 70.7 MB in the beginning and 68.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:08,553 INFO L168 Benchmark]: RCFGBuilder took 1087.72 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 68.6 MB in the beginning and 78.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,553 INFO L168 Benchmark]: TraceAbstraction took 3174.24 ms. Allocated memory was 132.1 MB in the beginning and 161.5 MB in the end (delta: 29.4 MB). Free memory was 78.8 MB in the beginning and 106.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 911.9 kB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,554 INFO L168 Benchmark]: Witness Printer took 107.49 ms. Allocated memory is still 161.5 MB. Free memory was 106.9 MB in the beginning and 93.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 102.8 MB. Free memory is still 58.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 504.59 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 73.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.08 ms. Allocated memory is still 102.8 MB. Free memory was 73.5 MB in the beginning and 70.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.07 ms. Allocated memory is still 102.8 MB. Free memory was 70.7 MB in the beginning and 68.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1087.72 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 68.6 MB in the beginning and 78.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3174.24 ms. Allocated memory was 132.1 MB in the beginning and 161.5 MB in the end (delta: 29.4 MB). Free memory was 78.8 MB in the beginning and 106.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 911.9 kB. Max. memory is 16.1 GB. * Witness Printer took 107.49 ms. Allocated memory is still 161.5 MB. Free memory was 106.9 MB in the beginning and 93.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 550]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L555] int s ; [L559] s = 12292 [L13] int s__info_callback = __VERIFIER_nondet_int() ; [L14] int s__in_handshake = __VERIFIER_nondet_int() ; [L15] int s__state ; [L16] int s__new_session ; [L17] int s__server ; [L18] int s__version = __VERIFIER_nondet_int() ; [L19] int s__type ; [L20] int s__init_num ; [L21] int s__bbio = __VERIFIER_nondet_int() ; [L22] int s__wbio = __VERIFIER_nondet_int() ; [L23] int s__hit = __VERIFIER_nondet_int() ; [L24] int s__rwstate ; [L25] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L26] int s__debug = __VERIFIER_nondet_int() ; [L27] int s__shutdown ; [L28] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L33] int s__s3__change_cipher_spec ; [L34] int s__s3__flags = __VERIFIER_nondet_int() ; [L35] int s__s3__delay_buf_pop_ret ; [L36] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L41] int s__s3__tmp__next_state___0 ; [L42] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L43] int s__session__cipher ; [L44] int s__session__compress_meth ; [L45] int buf ; [L46] unsigned long tmp ; [L47] unsigned long l ; [L48] int num1 = __VERIFIER_nondet_int() ; [L49] int cb ; [L50] int ret ; [L51] int new_state ; [L52] int state ; [L53] int skip ; [L54] int tmp___0 ; [L55] int tmp___1 = __VERIFIER_nondet_int() ; [L56] int tmp___2 = __VERIFIER_nondet_int() ; [L57] int tmp___3 = __VERIFIER_nondet_int() ; [L58] int tmp___4 = __VERIFIER_nondet_int() ; [L59] int tmp___5 = __VERIFIER_nondet_int() ; [L60] int tmp___6 = __VERIFIER_nondet_int() ; [L61] int tmp___7 = __VERIFIER_nondet_int() ; [L62] int tmp___8 = __VERIFIER_nondet_int() ; [L63] int tmp___9 = __VERIFIER_nondet_int() ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] long __cil_tmp57 ; [L68] long __cil_tmp58 ; [L69] long __cil_tmp59 ; [L70] long __cil_tmp60 ; [L71] long __cil_tmp61 ; [L72] long __cil_tmp62 ; [L73] long __cil_tmp63 ; [L74] long __cil_tmp64 ; [L75] long __cil_tmp65 ; [L79] s__state = initial_state [L80] blastFlag = 0 [L81] tmp = __VERIFIER_nondet_int() [L82] cb = 0 [L83] ret = -1 [L84] skip = 0 [L85] tmp___0 = 0 [L86] COND TRUE s__info_callback != 0 [L87] cb = s__info_callback [L93] s__in_handshake ++ [L94] COND FALSE !(tmp___1 + 12288) [L100] COND TRUE 1 [L102] state = s__state [L103] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate ++ [L212] s__server = 0 [L213] COND TRUE cb != 0 [L217] __cil_tmp55 = s__version + 65280 [L218] COND FALSE !(__cil_tmp55 != 768) [L223] s__type = 4096 [L224] COND FALSE !(s__init_buf___0 == 0) [L236] COND FALSE !(! tmp___4) [L240] COND FALSE !(! tmp___5) [L244] s__state = 4368 [L245] s__ctx__stats__sess_connect ++ [L246] s__init_num = 0 [L522] COND FALSE !(! s__s3__tmp__reuse_message) [L539] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 4096) [L112] COND FALSE !(s__state == 20480) [L115] COND FALSE !(s__state == 4099) [L118] COND TRUE s__state == 4368 [L250] s__shutdown = 0 [L251] ret = __VERIFIER_nondet_int() [L252] COND TRUE blastFlag == 0 [L253] blastFlag = 1 [L255] COND FALSE !(ret <= 0) [L258] s__state = 4384 [L259] s__init_num = 0 [L260] COND TRUE s__bbio != s__wbio [L522] COND FALSE !(! s__s3__tmp__reuse_message) [L539] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 4096) [L112] COND FALSE !(s__state == 20480) [L115] COND FALSE !(s__state == 4099) [L118] COND FALSE !(s__state == 4368) [L121] COND FALSE !(s__state == 4369) [L124] COND TRUE s__state == 4384 [L266] ret = __VERIFIER_nondet_int() [L267] COND TRUE blastFlag == 1 [L268] blastFlag = 2 [L270] COND FALSE !(ret <= 0) [L273] COND FALSE !(\read(s__hit)) [L276] s__state = 4400 [L278] s__init_num = 0 [L522] COND FALSE !(! s__s3__tmp__reuse_message) [L539] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 4096) [L112] COND FALSE !(s__state == 20480) [L115] COND FALSE !(s__state == 4099) [L118] COND FALSE !(s__state == 4368) [L121] COND FALSE !(s__state == 4369) [L124] COND FALSE !(s__state == 4384) [L127] COND FALSE !(s__state == 4385) [L130] COND TRUE s__state == 4400 [L283] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L284] COND FALSE !(__cil_tmp56 + 256UL) [L287] ret = __VERIFIER_nondet_int() [L288] COND TRUE blastFlag == 2 [L289] blastFlag = 3 [L295] COND FALSE !(ret <= 0) [L300] s__state = 4416 [L301] s__init_num = 0 [L522] COND FALSE !(! s__s3__tmp__reuse_message) [L539] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 4096) [L112] COND FALSE !(s__state == 20480) [L115] COND FALSE !(s__state == 4099) [L118] COND FALSE !(s__state == 4368) [L121] COND FALSE !(s__state == 4369) [L124] COND FALSE !(s__state == 4384) [L127] COND FALSE !(s__state == 4385) [L130] COND FALSE !(s__state == 4400) [L133] COND FALSE !(s__state == 4401) [L136] COND TRUE s__state == 4416 [L305] ret = __VERIFIER_nondet_int() [L306] COND TRUE blastFlag == 3 [L307] blastFlag = 4 [L309] COND FALSE !(ret <= 0) [L312] s__state = 4432 [L313] s__init_num = 0 [L314] COND FALSE !(! tmp___6) [L522] COND FALSE !(! s__s3__tmp__reuse_message) [L539] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 4096) [L112] COND FALSE !(s__state == 20480) [L115] COND FALSE !(s__state == 4099) [L118] COND FALSE !(s__state == 4368) [L121] COND FALSE !(s__state == 4369) [L124] COND FALSE !(s__state == 4384) [L127] COND FALSE !(s__state == 4385) [L130] COND FALSE !(s__state == 4400) [L133] COND FALSE !(s__state == 4401) [L136] COND FALSE !(s__state == 4416) [L139] COND FALSE !(s__state == 4417) [L142] COND TRUE s__state == 4432 [L321] ret = __VERIFIER_nondet_int() [L322] COND TRUE blastFlag == 4 [L550] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1631 SDtfs, 274 SDslu, 970 SDs, 0 SdLazy, 641 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=490occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 755 NumberOfCodeBlocks, 755 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 639 ConstructedInterpolants, 0 QuantifiedInterpolants, 78987 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 586/586 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 incorrect! Received shutdown request...