./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer --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 87a4b11fd60d88478c9ad5217320492e74a11c2e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-69874e2 [2020-12-01 15:17:29,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:17:29,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:17:29,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:17:29,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:17:29,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:17:29,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:17:29,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:17:29,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:17:29,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:17:29,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:17:29,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:17:29,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:17:29,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:17:29,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:17:29,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:17:29,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:17:29,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:17:29,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:17:29,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:17:29,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:17:29,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:17:29,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:17:29,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:17:29,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:17:29,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:17:29,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:17:29,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:17:29,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:17:29,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:17:29,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:17:29,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:17:29,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:17:29,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:17:29,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:17:29,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:17:29,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:17:29,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:17:29,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:17:29,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:17:29,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:17:29,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:17:29,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:17:29,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:17:29,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:17:29,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:17:29,703 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:17:29,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:17:29,703 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:17:29,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:17:29,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:17:29,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:17:29,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:17:29,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:17:29,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:17:29,705 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:17:29,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:17:29,706 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:17:29,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:17:29,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:17:29,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:17:29,706 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:17:29,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:17:29,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:17:29,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:17:29,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:17:29,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:17:29,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:17:29,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:17:29,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:17:29,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:17:29,708 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-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87a4b11fd60d88478c9ad5217320492e74a11c2e [2020-12-01 15:17:29,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:17:29,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:17:29,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:17:29,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:17:29,981 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:17:29,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c [2020-12-01 15:17:30,057 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/data/0b0bb5464/a4775d5492f94b9c938674aee8b9957b/FLAGece831f5a [2020-12-01 15:17:30,524 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:17:30,525 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/sv-benchmarks/c/openssl-simplified/s3_srvr_10.cil.c [2020-12-01 15:17:30,541 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/data/0b0bb5464/a4775d5492f94b9c938674aee8b9957b/FLAGece831f5a [2020-12-01 15:17:30,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/data/0b0bb5464/a4775d5492f94b9c938674aee8b9957b [2020-12-01 15:17:30,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:17:30,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:17:30,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:17:30,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:17:30,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:17:30,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:17:30" (1/1) ... [2020-12-01 15:17:30,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b1ef58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:30, skipping insertion in model container [2020-12-01 15:17:30,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:17:30" (1/1) ... [2020-12-01 15:17:30,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:17:30,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:17:31,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:17:31,225 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:17:31,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:17:31,299 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:17:31,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31 WrapperNode [2020-12-01 15:17:31,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:17:31,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:17:31,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:17:31,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:17:31,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:17:31,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:17:31,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:17:31,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:17:31,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... [2020-12-01 15:17:31,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:17:31,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:17:31,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:17:31,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:17:31,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/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 [2020-12-01 15:17:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:17:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:17:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:17:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:17:31,809 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-01 15:17:32,384 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-12-01 15:17:32,384 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-12-01 15:17:32,397 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:17:32,397 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:17:32,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:17:32 BoogieIcfgContainer [2020-12-01 15:17:32,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:17:32,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:17:32,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:17:32,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:17:32,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:17:30" (1/3) ... [2020-12-01 15:17:32,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee7bc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:17:32, skipping insertion in model container [2020-12-01 15:17:32,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:31" (2/3) ... [2020-12-01 15:17:32,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee7bc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:17:32, skipping insertion in model container [2020-12-01 15:17:32,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:17:32" (3/3) ... [2020-12-01 15:17:32,411 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_10.cil.c [2020-12-01 15:17:32,428 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:17:32,431 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:17:32,441 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:17:32,482 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:17:32,482 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:17:32,483 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:17:32,483 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:17:32,483 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:17:32,483 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:17:32,483 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:17:32,483 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:17:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-12-01 15:17:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 15:17:32,507 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:32,507 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] [2020-12-01 15:17:32,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:32,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:32,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1530370178, now seen corresponding path program 1 times [2020-12-01 15:17:32,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:32,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115460057] [2020-12-01 15:17:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:32,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115460057] [2020-12-01 15:17:32,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:17:32,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:17:32,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354402125] [2020-12-01 15:17:32,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:17:32,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:32,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:17:32,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:17:32,761 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 3 states. [2020-12-01 15:17:32,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:32,973 INFO L93 Difference]: Finished difference Result 313 states and 531 transitions. [2020-12-01 15:17:32,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:17:32,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-01 15:17:32,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:32,986 INFO L225 Difference]: With dead ends: 313 [2020-12-01 15:17:32,986 INFO L226 Difference]: Without dead ends: 153 [2020-12-01 15:17:32,990 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 [2020-12-01 15:17:33,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-12-01 15:17:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2020-12-01 15:17:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-12-01 15:17:33,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 236 transitions. [2020-12-01 15:17:33,071 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 236 transitions. Word has length 23 [2020-12-01 15:17:33,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:33,073 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 236 transitions. [2020-12-01 15:17:33,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:17:33,073 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 236 transitions. [2020-12-01 15:17:33,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 15:17:33,075 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:33,076 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] [2020-12-01 15:17:33,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:17:33,076 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:33,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:33,079 INFO L82 PathProgramCache]: Analyzing trace with hash -595070533, now seen corresponding path program 1 times [2020-12-01 15:17:33,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:33,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046566176] [2020-12-01 15:17:33,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:33,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046566176] [2020-12-01 15:17:33,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:17:33,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:17:33,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410041799] [2020-12-01 15:17:33,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:17:33,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:33,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:17:33,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:17:33,152 INFO L87 Difference]: Start difference. First operand 151 states and 236 transitions. Second operand 3 states. [2020-12-01 15:17:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:33,310 INFO L93 Difference]: Finished difference Result 314 states and 494 transitions. [2020-12-01 15:17:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:17:33,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-01 15:17:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:33,316 INFO L225 Difference]: With dead ends: 314 [2020-12-01 15:17:33,316 INFO L226 Difference]: Without dead ends: 171 [2020-12-01 15:17:33,320 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 [2020-12-01 15:17:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-01 15:17:33,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2020-12-01 15:17:33,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-01 15:17:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 267 transitions. [2020-12-01 15:17:33,346 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 267 transitions. Word has length 24 [2020-12-01 15:17:33,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:33,346 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 267 transitions. [2020-12-01 15:17:33,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:17:33,346 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 267 transitions. [2020-12-01 15:17:33,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 15:17:33,347 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:33,348 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] [2020-12-01 15:17:33,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:17:33,348 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:33,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:33,349 INFO L82 PathProgramCache]: Analyzing trace with hash 61695231, now seen corresponding path program 1 times [2020-12-01 15:17:33,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:33,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530364372] [2020-12-01 15:17:33,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:33,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530364372] [2020-12-01 15:17:33,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:17:33,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:17:33,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033982897] [2020-12-01 15:17:33,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:17:33,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:33,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:17:33,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:17:33,472 INFO L87 Difference]: Start difference. First operand 169 states and 267 transitions. Second operand 3 states. [2020-12-01 15:17:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:33,632 INFO L93 Difference]: Finished difference Result 331 states and 524 transitions. [2020-12-01 15:17:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:17:33,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-01 15:17:33,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:33,635 INFO L225 Difference]: With dead ends: 331 [2020-12-01 15:17:33,636 INFO L226 Difference]: Without dead ends: 170 [2020-12-01 15:17:33,638 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 [2020-12-01 15:17:33,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-12-01 15:17:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-12-01 15:17:33,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-12-01 15:17:33,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 268 transitions. [2020-12-01 15:17:33,657 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 268 transitions. Word has length 24 [2020-12-01 15:17:33,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:33,657 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 268 transitions. [2020-12-01 15:17:33,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:17:33,658 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 268 transitions. [2020-12-01 15:17:33,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 15:17:33,659 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:33,659 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] [2020-12-01 15:17:33,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:17:33,659 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:33,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:33,660 INFO L82 PathProgramCache]: Analyzing trace with hash -77832335, now seen corresponding path program 1 times [2020-12-01 15:17:33,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:33,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556045644] [2020-12-01 15:17:33,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:33,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556045644] [2020-12-01 15:17:33,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:17:33,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:17:33,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34334234] [2020-12-01 15:17:33,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:17:33,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:33,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:17:33,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:17:33,752 INFO L87 Difference]: Start difference. First operand 170 states and 268 transitions. Second operand 3 states. [2020-12-01 15:17:33,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:33,889 INFO L93 Difference]: Finished difference Result 341 states and 536 transitions. [2020-12-01 15:17:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:17:33,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-01 15:17:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:33,891 INFO L225 Difference]: With dead ends: 341 [2020-12-01 15:17:33,891 INFO L226 Difference]: Without dead ends: 179 [2020-12-01 15:17:33,892 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 [2020-12-01 15:17:33,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-12-01 15:17:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-12-01 15:17:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-12-01 15:17:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 277 transitions. [2020-12-01 15:17:33,912 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 277 transitions. Word has length 25 [2020-12-01 15:17:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:33,912 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 277 transitions. [2020-12-01 15:17:33,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:17:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 277 transitions. [2020-12-01 15:17:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 15:17:33,914 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:33,914 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] [2020-12-01 15:17:33,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:17:33,914 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:33,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:33,915 INFO L82 PathProgramCache]: Analyzing trace with hash 845996009, now seen corresponding path program 1 times [2020-12-01 15:17:33,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:33,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902308449] [2020-12-01 15:17:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:33,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:33,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902308449] [2020-12-01 15:17:33,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:17:33,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:17:33,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489350728] [2020-12-01 15:17:33,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:17:33,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:33,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:17:33,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:17:33,987 INFO L87 Difference]: Start difference. First operand 179 states and 277 transitions. Second operand 3 states. [2020-12-01 15:17:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:34,120 INFO L93 Difference]: Finished difference Result 360 states and 554 transitions. [2020-12-01 15:17:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:17:34,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-01 15:17:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:34,122 INFO L225 Difference]: With dead ends: 360 [2020-12-01 15:17:34,122 INFO L226 Difference]: Without dead ends: 189 [2020-12-01 15:17:34,123 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 [2020-12-01 15:17:34,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-12-01 15:17:34,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 179. [2020-12-01 15:17:34,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-12-01 15:17:34,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 275 transitions. [2020-12-01 15:17:34,132 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 275 transitions. Word has length 26 [2020-12-01 15:17:34,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:34,132 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 275 transitions. [2020-12-01 15:17:34,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:17:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 275 transitions. [2020-12-01 15:17:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 15:17:34,139 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:34,139 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] [2020-12-01 15:17:34,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:17:34,139 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:34,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:34,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1554339536, now seen corresponding path program 1 times [2020-12-01 15:17:34,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:34,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823709686] [2020-12-01 15:17:34,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:34,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:34,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823709686] [2020-12-01 15:17:34,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:17:34,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:17:34,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061909331] [2020-12-01 15:17:34,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:17:34,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:34,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:17:34,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:17:34,203 INFO L87 Difference]: Start difference. First operand 179 states and 275 transitions. Second operand 3 states. [2020-12-01 15:17:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:34,353 INFO L93 Difference]: Finished difference Result 360 states and 550 transitions. [2020-12-01 15:17:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:17:34,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-12-01 15:17:34,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:34,355 INFO L225 Difference]: With dead ends: 360 [2020-12-01 15:17:34,355 INFO L226 Difference]: Without dead ends: 189 [2020-12-01 15:17:34,356 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 [2020-12-01 15:17:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-12-01 15:17:34,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 179. [2020-12-01 15:17:34,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-12-01 15:17:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 273 transitions. [2020-12-01 15:17:34,367 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 273 transitions. Word has length 27 [2020-12-01 15:17:34,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:34,368 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 273 transitions. [2020-12-01 15:17:34,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:17:34,368 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 273 transitions. [2020-12-01 15:17:34,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 15:17:34,373 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:34,373 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] [2020-12-01 15:17:34,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:17:34,374 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:34,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:34,376 INFO L82 PathProgramCache]: Analyzing trace with hash 552780476, now seen corresponding path program 1 times [2020-12-01 15:17:34,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:34,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456956189] [2020-12-01 15:17:34,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:17:34,419 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:17:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:17:34,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:17:34,491 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:17:34,491 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:17:34,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:17:34,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:17:34 BoogieIcfgContainer [2020-12-01 15:17:34,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:17:34,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:17:34,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:17:34,540 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:17:34,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:17:32" (3/4) ... [2020-12-01 15:17:34,543 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:17:34,632 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_29c844c1-192f-49b4-a0a9-14cdbda993cc/bin/uautomizer/witness.graphml [2020-12-01 15:17:34,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:17:34,638 INFO L168 Benchmark]: Toolchain (without parser) took 3726.19 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 95.6 MB in the beginning and 79.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 44.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:34,638 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 37.8 MB in the beginning and 37.8 MB in the end (delta: 36.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:17:34,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.96 ms. Allocated memory is still 127.9 MB. Free memory was 95.6 MB in the beginning and 98.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:34,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.01 ms. Allocated memory is still 127.9 MB. Free memory was 98.9 MB in the beginning and 96.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:34,640 INFO L168 Benchmark]: Boogie Preprocessor took 39.03 ms. Allocated memory is still 127.9 MB. Free memory was 96.2 MB in the beginning and 94.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:34,640 INFO L168 Benchmark]: RCFGBuilder took 1003.37 ms. Allocated memory is still 127.9 MB. Free memory was 94.2 MB in the beginning and 82.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:34,641 INFO L168 Benchmark]: TraceAbstraction took 2134.53 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 82.5 MB in the beginning and 84.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:34,641 INFO L168 Benchmark]: Witness Printer took 92.01 ms. Allocated memory is still 155.2 MB. Free memory was 84.6 MB in the beginning and 79.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:34,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 37.8 MB in the beginning and 37.8 MB in the end (delta: 36.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.96 ms. Allocated memory is still 127.9 MB. Free memory was 95.6 MB in the beginning and 98.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.01 ms. Allocated memory is still 127.9 MB. Free memory was 98.9 MB in the beginning and 96.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.03 ms. Allocated memory is still 127.9 MB. Free memory was 96.2 MB in the beginning and 94.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1003.37 ms. Allocated memory is still 127.9 MB. Free memory was 94.2 MB in the beginning and 82.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2134.53 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 82.5 MB in the beginning and 84.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * Witness Printer took 92.01 ms. Allocated memory is still 155.2 MB. Free memory was 84.6 MB in the beginning and 79.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L636] int s ; [L637] int tmp ; [L641] s = 8464 [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__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__cert = __VERIFIER_nondet_int() ; [L27] int s__options = __VERIFIER_nondet_int() ; [L28] int s__verify_mode = __VERIFIER_nondet_int() ; [L29] int s__session__peer = __VERIFIER_nondet_int() ; [L30] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L31] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L34] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__cert_request ; [L36] int s__s3__tmp__reuse_message ; [L37] int s__s3__tmp__use_rsa_tmp ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int buf = __VERIFIER_nondet_int() ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp = __VERIFIER_nondet_long() ; [L47] int cb ; [L48] long num1 ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int got_new_session ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 ; [L57] int tmp___4 ; [L58] int tmp___5 ; [L59] int tmp___6 ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 ; [L63] int tmp___10 ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] unsigned long __cil_tmp57 ; [L68] unsigned long __cil_tmp58 ; [L69] unsigned long __cil_tmp59 ; [L70] int __cil_tmp60 ; [L71] unsigned long __cil_tmp61 ; [L74] s__s3__tmp__new_cipher__algorithms = 0 [L75] __cil_tmp56 = 0 [L76] __cil_tmp57 = 0 [L77] __cil_tmp58 = 0 [L78] __cil_tmp59 = 0 [L79] __cil_tmp60 = 0 [L80] __cil_tmp61 = 0 [L81] s__s3__tmp__reuse_message = 0 [L82] s__state = initial_state [L83] blastFlag = 0 [L84] Time = tmp [L85] cb = 0 [L86] ret = -1 [L87] skip = 0 [L88] got_new_session = 0 [L89] COND TRUE s__info_callback != 0 [L90] cb = s__info_callback [L96] s__in_handshake ++ [L97] COND FALSE !(tmp___1 + 12288) [L102] COND FALSE !(s__cert == 0) [L106] COND TRUE 1 [L108] state = s__state [L109] COND FALSE !(s__state == 12292) [L112] COND FALSE !(s__state == 16384) [L115] COND FALSE !(s__state == 8192) [L118] COND FALSE !(s__state == 24576) [L121] COND FALSE !(s__state == 8195) [L124] COND FALSE !(s__state == 8480) [L127] COND FALSE !(s__state == 8481) [L130] COND FALSE !(s__state == 8482) [L133] COND TRUE s__state == 8464 [L277] s__shutdown = 0 [L278] ret = __VERIFIER_nondet_int() [L279] COND TRUE blastFlag == 0 [L280] blastFlag = 1 [L282] COND FALSE !(ret <= 0) [L285] got_new_session = 1 [L286] s__state = 8496 [L287] s__init_num = 0 [L593] COND TRUE ! s__s3__tmp__reuse_message [L594] COND TRUE ! skip [L595] COND TRUE state == 8464 [L596] COND TRUE s__state == 8496 [L597] COND TRUE cb != 0 [L598] COND TRUE s__info_callback != 0 [L3] __assert_fail("0", "s3_srvr_10.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 148 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 846 SDtfs, 1058 SDslu, 126 SDs, 0 SdLazy, 496 SolverSat, 176 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=4, 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, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 7880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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...