./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.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_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7047f55ac2887c2060382be67f6b237af9da492 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:24:08,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:08,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:08,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:08,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:08,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:08,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:08,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:08,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:08,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:08,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:08,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:08,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:08,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:08,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:08,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:08,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:08,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:08,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:08,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:08,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:08,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:08,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:08,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:08,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:08,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:08,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:08,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:08,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:08,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:08,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:08,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:08,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:08,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:08,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:08,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:08,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:08,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:08,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:08,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:08,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:08,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:24:08,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:08,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:08,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:08,542 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:08,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:08,542 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:08,543 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:08,543 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:08,549 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:08,550 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:08,551 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:08,551 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:08,551 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:08,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:08,552 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:08,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:08,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:08,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:08,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:08,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:08,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:08,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:08,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:08,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:08,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:08,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:08,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:08,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:08,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:08,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:08,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:08,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:08,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:08,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:08,559 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:08,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:08,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:08,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:08,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:08,560 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7047f55ac2887c2060382be67f6b237af9da492 [2021-10-11 02:24:08,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:08,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:08,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:08,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:08,870 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:08,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c [2021-10-11 02:24:08,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/data/41b32d9c9/a161ab5faffd4f578313068d1e04b2af/FLAGc7e341ef4 [2021-10-11 02:24:09,394 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:09,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c [2021-10-11 02:24:09,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/data/41b32d9c9/a161ab5faffd4f578313068d1e04b2af/FLAGc7e341ef4 [2021-10-11 02:24:09,758 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/data/41b32d9c9/a161ab5faffd4f578313068d1e04b2af [2021-10-11 02:24:09,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:09,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:09,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:09,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:09,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:09,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:09" (1/1) ... [2021-10-11 02:24:09,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c52e242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:09, skipping insertion in model container [2021-10-11 02:24:09,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:09" (1/1) ... [2021-10-11 02:24:09,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:09,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:10,038 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_add48c71-b484-4400-90fe-9732f0473e5c/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c[42399,42412] [2021-10-11 02:24:10,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:10,056 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:10,121 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_add48c71-b484-4400-90fe-9732f0473e5c/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c[42399,42412] [2021-10-11 02:24:10,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:10,139 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:10,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10 WrapperNode [2021-10-11 02:24:10,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:10,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:10,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:10,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:10,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:10,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:10,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:10,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:10,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:10,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:10,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:10,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:10,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/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 02:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:10,523 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:24:11,288 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-11 02:24:11,288 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-11 02:24:11,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:11,671 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:24:11,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:11 BoogieIcfgContainer [2021-10-11 02:24:11,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:11,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:11,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:11,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:11,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:09" (1/3) ... [2021-10-11 02:24:11,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65e3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:11, skipping insertion in model container [2021-10-11 02:24:11,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (2/3) ... [2021-10-11 02:24:11,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65e3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:11, skipping insertion in model container [2021-10-11 02:24:11,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:11" (3/3) ... [2021-10-11 02:24:11,683 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-2.c [2021-10-11 02:24:11,702 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:11,706 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:24:11,718 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:24:11,761 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:11,761 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:11,761 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:11,761 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:11,762 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:11,762 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:11,762 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:11,762 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:11,811 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2021-10-11 02:24:11,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-11 02:24:11,833 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:11,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:11,846 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:11,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:11,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1369161449, now seen corresponding path program 1 times [2021-10-11 02:24:11,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:11,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189672854] [2021-10-11 02:24:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:12,175 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 02:24:12,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189672854] [2021-10-11 02:24:12,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:12,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:12,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907126083] [2021-10-11 02:24:12,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:12,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:12,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:12,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:12,202 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 3 states. [2021-10-11 02:24:12,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:12,523 INFO L93 Difference]: Finished difference Result 258 states and 452 transitions. [2021-10-11 02:24:12,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:12,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2021-10-11 02:24:12,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:12,553 INFO L225 Difference]: With dead ends: 258 [2021-10-11 02:24:12,553 INFO L226 Difference]: Without dead ends: 148 [2021-10-11 02:24:12,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:12,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-11 02:24:12,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 143. [2021-10-11 02:24:12,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-10-11 02:24:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 230 transitions. [2021-10-11 02:24:12,618 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 230 transitions. Word has length 39 [2021-10-11 02:24:12,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:12,619 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 230 transitions. [2021-10-11 02:24:12,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 230 transitions. [2021-10-11 02:24:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-11 02:24:12,622 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:12,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:12,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:24:12,622 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:12,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:12,623 INFO L82 PathProgramCache]: Analyzing trace with hash 498513343, now seen corresponding path program 1 times [2021-10-11 02:24:12,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:12,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531897679] [2021-10-11 02:24:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:12,704 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 02:24:12,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531897679] [2021-10-11 02:24:12,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:12,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:12,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668490759] [2021-10-11 02:24:12,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:12,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:12,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:12,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:12,708 INFO L87 Difference]: Start difference. First operand 143 states and 230 transitions. Second operand 3 states. [2021-10-11 02:24:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:12,930 INFO L93 Difference]: Finished difference Result 330 states and 540 transitions. [2021-10-11 02:24:12,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:12,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2021-10-11 02:24:12,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:12,941 INFO L225 Difference]: With dead ends: 330 [2021-10-11 02:24:12,941 INFO L226 Difference]: Without dead ends: 187 [2021-10-11 02:24:12,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:12,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-11 02:24:12,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2021-10-11 02:24:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2021-10-11 02:24:12,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 303 transitions. [2021-10-11 02:24:12,968 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 303 transitions. Word has length 40 [2021-10-11 02:24:12,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:12,970 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 303 transitions. [2021-10-11 02:24:12,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 303 transitions. [2021-10-11 02:24:12,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-11 02:24:12,974 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:12,975 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:24:12,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:24:12,976 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:12,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:12,977 INFO L82 PathProgramCache]: Analyzing trace with hash -725421733, now seen corresponding path program 1 times [2021-10-11 02:24:12,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:12,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869855879] [2021-10-11 02:24:12,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:13,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869855879] [2021-10-11 02:24:13,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:13,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:13,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818437832] [2021-10-11 02:24:13,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:13,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:13,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:13,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:13,119 INFO L87 Difference]: Start difference. First operand 182 states and 303 transitions. Second operand 3 states. [2021-10-11 02:24:13,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:13,289 INFO L93 Difference]: Finished difference Result 391 states and 658 transitions. [2021-10-11 02:24:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:13,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2021-10-11 02:24:13,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:13,291 INFO L225 Difference]: With dead ends: 391 [2021-10-11 02:24:13,291 INFO L226 Difference]: Without dead ends: 211 [2021-10-11 02:24:13,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-10-11 02:24:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-10-11 02:24:13,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2021-10-11 02:24:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 355 transitions. [2021-10-11 02:24:13,317 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 355 transitions. Word has length 66 [2021-10-11 02:24:13,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:13,317 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 355 transitions. [2021-10-11 02:24:13,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 355 transitions. [2021-10-11 02:24:13,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-11 02:24:13,321 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:13,321 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:13,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:24:13,321 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1243135150, now seen corresponding path program 1 times [2021-10-11 02:24:13,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:13,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178644986] [2021-10-11 02:24:13,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:24:13,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178644986] [2021-10-11 02:24:13,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:13,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:13,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117521201] [2021-10-11 02:24:13,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:13,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:13,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:13,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:13,469 INFO L87 Difference]: Start difference. First operand 211 states and 355 transitions. Second operand 3 states. [2021-10-11 02:24:13,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:13,645 INFO L93 Difference]: Finished difference Result 435 states and 732 transitions. [2021-10-11 02:24:13,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:13,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2021-10-11 02:24:13,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:13,648 INFO L225 Difference]: With dead ends: 435 [2021-10-11 02:24:13,648 INFO L226 Difference]: Without dead ends: 226 [2021-10-11 02:24:13,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-11 02:24:13,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2021-10-11 02:24:13,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2021-10-11 02:24:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 374 transitions. [2021-10-11 02:24:13,677 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 374 transitions. Word has length 77 [2021-10-11 02:24:13,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:13,680 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 374 transitions. [2021-10-11 02:24:13,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:13,681 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 374 transitions. [2021-10-11 02:24:13,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-11 02:24:13,687 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:13,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:13,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:24:13,688 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:13,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:13,690 INFO L82 PathProgramCache]: Analyzing trace with hash -890373956, now seen corresponding path program 1 times [2021-10-11 02:24:13,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:13,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729114002] [2021-10-11 02:24:13,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:13,777 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:13,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729114002] [2021-10-11 02:24:13,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:13,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:13,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228390365] [2021-10-11 02:24:13,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:13,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:13,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:13,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:13,780 INFO L87 Difference]: Start difference. First operand 224 states and 374 transitions. Second operand 3 states. [2021-10-11 02:24:13,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:13,978 INFO L93 Difference]: Finished difference Result 487 states and 819 transitions. [2021-10-11 02:24:13,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:13,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2021-10-11 02:24:13,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:13,981 INFO L225 Difference]: With dead ends: 487 [2021-10-11 02:24:13,981 INFO L226 Difference]: Without dead ends: 265 [2021-10-11 02:24:13,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:13,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-11 02:24:13,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 262. [2021-10-11 02:24:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-10-11 02:24:14,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 442 transitions. [2021-10-11 02:24:14,001 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 442 transitions. Word has length 77 [2021-10-11 02:24:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:14,001 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 442 transitions. [2021-10-11 02:24:14,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 442 transitions. [2021-10-11 02:24:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-11 02:24:14,002 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:14,003 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:14,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:24:14,003 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:14,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:14,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1231568959, now seen corresponding path program 1 times [2021-10-11 02:24:14,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:14,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515732092] [2021-10-11 02:24:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:14,043 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:24:14,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515732092] [2021-10-11 02:24:14,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:14,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:14,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377334465] [2021-10-11 02:24:14,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:14,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:14,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:14,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:14,046 INFO L87 Difference]: Start difference. First operand 262 states and 442 transitions. Second operand 3 states. [2021-10-11 02:24:14,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:14,204 INFO L93 Difference]: Finished difference Result 524 states and 884 transitions. [2021-10-11 02:24:14,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:14,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2021-10-11 02:24:14,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:14,208 INFO L225 Difference]: With dead ends: 524 [2021-10-11 02:24:14,208 INFO L226 Difference]: Without dead ends: 264 [2021-10-11 02:24:14,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-10-11 02:24:14,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2021-10-11 02:24:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-10-11 02:24:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 438 transitions. [2021-10-11 02:24:14,227 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 438 transitions. Word has length 78 [2021-10-11 02:24:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:14,228 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 438 transitions. [2021-10-11 02:24:14,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 438 transitions. [2021-10-11 02:24:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-11 02:24:14,229 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:14,229 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:14,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:24:14,230 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:14,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:14,230 INFO L82 PathProgramCache]: Analyzing trace with hash -433423356, now seen corresponding path program 1 times [2021-10-11 02:24:14,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:14,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977259107] [2021-10-11 02:24:14,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:14,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977259107] [2021-10-11 02:24:14,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:14,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:14,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320500234] [2021-10-11 02:24:14,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:14,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:14,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:14,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:14,313 INFO L87 Difference]: Start difference. First operand 262 states and 438 transitions. Second operand 3 states. [2021-10-11 02:24:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:14,516 INFO L93 Difference]: Finished difference Result 525 states and 877 transitions. [2021-10-11 02:24:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:14,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2021-10-11 02:24:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:14,519 INFO L225 Difference]: With dead ends: 525 [2021-10-11 02:24:14,519 INFO L226 Difference]: Without dead ends: 263 [2021-10-11 02:24:14,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:14,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-10-11 02:24:14,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 260. [2021-10-11 02:24:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2021-10-11 02:24:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 433 transitions. [2021-10-11 02:24:14,531 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 433 transitions. Word has length 78 [2021-10-11 02:24:14,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:14,531 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 433 transitions. [2021-10-11 02:24:14,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:14,531 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 433 transitions. [2021-10-11 02:24:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-11 02:24:14,533 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:14,533 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:14,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:24:14,533 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:14,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:14,534 INFO L82 PathProgramCache]: Analyzing trace with hash 130623586, now seen corresponding path program 1 times [2021-10-11 02:24:14,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:14,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134702037] [2021-10-11 02:24:14,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-11 02:24:14,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134702037] [2021-10-11 02:24:14,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:14,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:14,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371227878] [2021-10-11 02:24:14,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:14,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:14,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:14,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:14,587 INFO L87 Difference]: Start difference. First operand 260 states and 433 transitions. Second operand 3 states. [2021-10-11 02:24:14,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:14,714 INFO L93 Difference]: Finished difference Result 525 states and 873 transitions. [2021-10-11 02:24:14,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:14,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2021-10-11 02:24:14,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:14,716 INFO L225 Difference]: With dead ends: 525 [2021-10-11 02:24:14,716 INFO L226 Difference]: Without dead ends: 267 [2021-10-11 02:24:14,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:14,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-10-11 02:24:14,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-10-11 02:24:14,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2021-10-11 02:24:14,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 436 transitions. [2021-10-11 02:24:14,728 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 436 transitions. Word has length 86 [2021-10-11 02:24:14,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:14,729 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 436 transitions. [2021-10-11 02:24:14,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:14,729 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 436 transitions. [2021-10-11 02:24:14,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-10-11 02:24:14,730 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:14,730 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 02:24:14,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:24:14,730 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:14,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:14,731 INFO L82 PathProgramCache]: Analyzing trace with hash -2115729227, now seen corresponding path program 1 times [2021-10-11 02:24:14,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:14,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586864340] [2021-10-11 02:24:14,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:24:14,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586864340] [2021-10-11 02:24:14,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:14,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:14,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043939518] [2021-10-11 02:24:14,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:14,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:14,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:14,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:14,770 INFO L87 Difference]: Start difference. First operand 267 states and 436 transitions. Second operand 3 states. [2021-10-11 02:24:14,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:14,946 INFO L93 Difference]: Finished difference Result 561 states and 919 transitions. [2021-10-11 02:24:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:14,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2021-10-11 02:24:14,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:14,951 INFO L225 Difference]: With dead ends: 561 [2021-10-11 02:24:14,951 INFO L226 Difference]: Without dead ends: 296 [2021-10-11 02:24:14,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-10-11 02:24:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2021-10-11 02:24:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2021-10-11 02:24:14,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 479 transitions. [2021-10-11 02:24:14,967 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 479 transitions. Word has length 91 [2021-10-11 02:24:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:14,971 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 479 transitions. [2021-10-11 02:24:14,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 479 transitions. [2021-10-11 02:24:14,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-11 02:24:14,973 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:14,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 02:24:14,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:24:14,974 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:14,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:14,974 INFO L82 PathProgramCache]: Analyzing trace with hash -349900990, now seen corresponding path program 1 times [2021-10-11 02:24:14,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:14,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134207399] [2021-10-11 02:24:14,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:24:15,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134207399] [2021-10-11 02:24:15,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:15,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:15,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487553079] [2021-10-11 02:24:15,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:15,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:15,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:15,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,022 INFO L87 Difference]: Start difference. First operand 294 states and 479 transitions. Second operand 3 states. [2021-10-11 02:24:15,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:15,206 INFO L93 Difference]: Finished difference Result 588 states and 958 transitions. [2021-10-11 02:24:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:15,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2021-10-11 02:24:15,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:15,210 INFO L225 Difference]: With dead ends: 588 [2021-10-11 02:24:15,210 INFO L226 Difference]: Without dead ends: 296 [2021-10-11 02:24:15,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-10-11 02:24:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2021-10-11 02:24:15,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2021-10-11 02:24:15,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 475 transitions. [2021-10-11 02:24:15,229 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 475 transitions. Word has length 92 [2021-10-11 02:24:15,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:15,230 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 475 transitions. [2021-10-11 02:24:15,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:15,230 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 475 transitions. [2021-10-11 02:24:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-11 02:24:15,231 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:15,231 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 02:24:15,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:24:15,231 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:15,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:15,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1571049317, now seen corresponding path program 1 times [2021-10-11 02:24:15,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:15,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320061407] [2021-10-11 02:24:15,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:24:15,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320061407] [2021-10-11 02:24:15,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:15,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:15,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038893781] [2021-10-11 02:24:15,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:15,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:15,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:15,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,271 INFO L87 Difference]: Start difference. First operand 294 states and 475 transitions. Second operand 3 states. [2021-10-11 02:24:15,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:15,438 INFO L93 Difference]: Finished difference Result 619 states and 1004 transitions. [2021-10-11 02:24:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:15,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2021-10-11 02:24:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:15,441 INFO L225 Difference]: With dead ends: 619 [2021-10-11 02:24:15,441 INFO L226 Difference]: Without dead ends: 327 [2021-10-11 02:24:15,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-10-11 02:24:15,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2021-10-11 02:24:15,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2021-10-11 02:24:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 513 transitions. [2021-10-11 02:24:15,458 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 513 transitions. Word has length 93 [2021-10-11 02:24:15,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:15,458 INFO L481 AbstractCegarLoop]: Abstraction has 319 states and 513 transitions. [2021-10-11 02:24:15,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 513 transitions. [2021-10-11 02:24:15,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-10-11 02:24:15,460 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:15,460 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:15,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:24:15,460 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:15,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:15,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1140946036, now seen corresponding path program 1 times [2021-10-11 02:24:15,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:15,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267234907] [2021-10-11 02:24:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-11 02:24:15,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267234907] [2021-10-11 02:24:15,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:15,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:15,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979802399] [2021-10-11 02:24:15,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:15,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:15,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:15,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,498 INFO L87 Difference]: Start difference. First operand 319 states and 513 transitions. Second operand 3 states. [2021-10-11 02:24:15,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:15,662 INFO L93 Difference]: Finished difference Result 657 states and 1057 transitions. [2021-10-11 02:24:15,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:15,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2021-10-11 02:24:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:15,665 INFO L225 Difference]: With dead ends: 657 [2021-10-11 02:24:15,665 INFO L226 Difference]: Without dead ends: 340 [2021-10-11 02:24:15,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-11 02:24:15,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 338. [2021-10-11 02:24:15,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2021-10-11 02:24:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 538 transitions. [2021-10-11 02:24:15,686 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 538 transitions. Word has length 94 [2021-10-11 02:24:15,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:15,686 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 538 transitions. [2021-10-11 02:24:15,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 538 transitions. [2021-10-11 02:24:15,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-10-11 02:24:15,688 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:15,688 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:15,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:24:15,689 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:15,689 INFO L82 PathProgramCache]: Analyzing trace with hash 2098544146, now seen corresponding path program 1 times [2021-10-11 02:24:15,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:15,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388392326] [2021-10-11 02:24:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:24:15,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388392326] [2021-10-11 02:24:15,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:15,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:15,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086736737] [2021-10-11 02:24:15,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:15,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:15,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:15,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,734 INFO L87 Difference]: Start difference. First operand 338 states and 538 transitions. Second operand 3 states. [2021-10-11 02:24:15,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:15,903 INFO L93 Difference]: Finished difference Result 682 states and 1087 transitions. [2021-10-11 02:24:15,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:15,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2021-10-11 02:24:15,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:15,906 INFO L225 Difference]: With dead ends: 682 [2021-10-11 02:24:15,906 INFO L226 Difference]: Without dead ends: 346 [2021-10-11 02:24:15,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-10-11 02:24:15,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 338. [2021-10-11 02:24:15,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2021-10-11 02:24:15,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 533 transitions. [2021-10-11 02:24:15,924 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 533 transitions. Word has length 94 [2021-10-11 02:24:15,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:15,924 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 533 transitions. [2021-10-11 02:24:15,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 533 transitions. [2021-10-11 02:24:15,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-10-11 02:24:15,926 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:15,926 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:15,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:24:15,927 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:15,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:15,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1664923321, now seen corresponding path program 1 times [2021-10-11 02:24:15,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:15,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024203611] [2021-10-11 02:24:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:15,961 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-11 02:24:15,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024203611] [2021-10-11 02:24:15,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:15,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:15,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493821078] [2021-10-11 02:24:15,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:15,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:15,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:15,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:15,963 INFO L87 Difference]: Start difference. First operand 338 states and 533 transitions. Second operand 3 states. [2021-10-11 02:24:16,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:16,117 INFO L93 Difference]: Finished difference Result 676 states and 1066 transitions. [2021-10-11 02:24:16,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:16,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2021-10-11 02:24:16,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:16,120 INFO L225 Difference]: With dead ends: 676 [2021-10-11 02:24:16,120 INFO L226 Difference]: Without dead ends: 340 [2021-10-11 02:24:16,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:16,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-11 02:24:16,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 338. [2021-10-11 02:24:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2021-10-11 02:24:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 527 transitions. [2021-10-11 02:24:16,147 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 527 transitions. Word has length 95 [2021-10-11 02:24:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:16,147 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 527 transitions. [2021-10-11 02:24:16,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:16,148 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 527 transitions. [2021-10-11 02:24:16,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-10-11 02:24:16,149 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:16,149 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:16,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 02:24:16,150 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:16,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:16,150 INFO L82 PathProgramCache]: Analyzing trace with hash -41415129, now seen corresponding path program 1 times [2021-10-11 02:24:16,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:16,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343056736] [2021-10-11 02:24:16,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:16,182 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:16,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:16,269 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:24:16,270 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:24:16,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 02:24:16,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:16 BoogieIcfgContainer [2021-10-11 02:24:16,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:16,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:16,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:16,415 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:16,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:11" (3/4) ... [2021-10-11 02:24:16,418 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:24:16,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add48c71-b484-4400-90fe-9732f0473e5c/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:24:16,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:16,557 INFO L168 Benchmark]: Toolchain (without parser) took 6794.33 ms. Allocated memory was 113.2 MB in the beginning and 222.3 MB in the end (delta: 109.1 MB). Free memory was 70.4 MB in the beginning and 150.1 MB in the end (delta: -79.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:16,558 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 87.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:16,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.84 ms. Allocated memory is still 113.2 MB. Free memory was 70.2 MB in the beginning and 82.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:16,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.29 ms. Allocated memory is still 113.2 MB. Free memory was 82.5 MB in the beginning and 79.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:16,559 INFO L168 Benchmark]: Boogie Preprocessor took 72.42 ms. Allocated memory is still 113.2 MB. Free memory was 79.6 MB in the beginning and 77.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:16,562 INFO L168 Benchmark]: RCFGBuilder took 1370.53 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 77.5 MB in the beginning and 58.5 MB in the end (delta: 19.0 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:16,563 INFO L168 Benchmark]: TraceAbstraction took 4738.37 ms. Allocated memory was 136.3 MB in the beginning and 222.3 MB in the end (delta: 86.0 MB). Free memory was 57.6 MB in the beginning and 164.9 MB in the end (delta: -107.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:16,563 INFO L168 Benchmark]: Witness Printer took 140.80 ms. Allocated memory is still 222.3 MB. Free memory was 163.8 MB in the beginning and 150.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:16,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 87.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.84 ms. Allocated memory is still 113.2 MB. Free memory was 70.2 MB in the beginning and 82.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.29 ms. Allocated memory is still 113.2 MB. Free memory was 82.5 MB in the beginning and 79.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.42 ms. Allocated memory is still 113.2 MB. Free memory was 79.6 MB in the beginning and 77.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1370.53 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 77.5 MB in the beginning and 58.5 MB in the end (delta: 19.0 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4738.37 ms. Allocated memory was 136.3 MB in the beginning and 222.3 MB in the end (delta: 86.0 MB). Free memory was 57.6 MB in the beginning and 164.9 MB in the end (delta: -107.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 140.80 ms. Allocated memory is still 222.3 MB. Free memory was 163.8 MB in the beginning and 150.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 609]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L614] int s ; [L615] int tmp ; [L619] 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 = __VERIFIER_nondet_int() ; [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 = __VERIFIER_nondet_int() ; [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 ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp ; [L47] int cb ; [L48] long num1 = __VERIFIER_nondet_long() ; [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 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int tmp___10 = __VERIFIER_nondet_int() ; [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 ; [L75] s__state = initial_state [L76] blastFlag = 0 [L77] tmp = __VERIFIER_nondet_int() [L78] Time = tmp [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] got_new_session = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND TRUE tmp___1 + 12288 [L92] COND TRUE tmp___2 + 16384 [L96] COND FALSE !(s__cert == 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 == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND TRUE s__state == 8464 [L273] s__shutdown = 0 [L274] ret = __VERIFIER_nondet_int() [L275] COND TRUE blastFlag == 0 [L276] blastFlag = 1 [L278] COND FALSE !(ret <= 0) [L281] got_new_session = 1 [L282] s__state = 8496 [L283] s__init_num = 0 [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] 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 == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND TRUE s__state == 8496 [L287] ret = __VERIFIER_nondet_int() [L288] COND TRUE blastFlag == 1 [L289] blastFlag = 2 [L295] COND FALSE !(ret <= 0) [L298] COND TRUE \read(s__hit) [L299] s__state = 8656 [L303] s__init_num = 0 [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] 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 == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND FALSE !(s__state == 8496) [L139] COND FALSE !(s__state == 8497) [L142] COND FALSE !(s__state == 8512) [L145] COND FALSE !(s__state == 8513) [L148] COND FALSE !(s__state == 8528) [L151] COND FALSE !(s__state == 8529) [L154] COND FALSE !(s__state == 8544) [L157] COND FALSE !(s__state == 8545) [L160] COND FALSE !(s__state == 8560) [L163] COND FALSE !(s__state == 8561) [L166] COND FALSE !(s__state == 8448) [L169] COND FALSE !(s__state == 8576) [L172] COND FALSE !(s__state == 8577) [L175] COND FALSE !(s__state == 8592) [L178] COND FALSE !(s__state == 8593) [L181] COND FALSE !(s__state == 8608) [L184] COND FALSE !(s__state == 8609) [L187] COND FALSE !(s__state == 8640) [L190] COND FALSE !(s__state == 8641) [L193] COND TRUE s__state == 8656 [L492] s__session__cipher = s__s3__tmp__new_cipher [L493] COND FALSE !(! tmp___9) [L497] ret = __VERIFIER_nondet_int() [L498] COND TRUE blastFlag == 2 [L499] blastFlag = 3 [L501] COND FALSE !(ret <= 0) [L504] s__state = 8672 [L505] s__init_num = 0 [L506] COND FALSE !(! tmp___10) [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] 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 == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND FALSE !(s__state == 8496) [L139] COND FALSE !(s__state == 8497) [L142] COND FALSE !(s__state == 8512) [L145] COND FALSE !(s__state == 8513) [L148] COND FALSE !(s__state == 8528) [L151] COND FALSE !(s__state == 8529) [L154] COND FALSE !(s__state == 8544) [L157] COND FALSE !(s__state == 8545) [L160] COND FALSE !(s__state == 8560) [L163] COND FALSE !(s__state == 8561) [L166] COND FALSE !(s__state == 8448) [L169] COND FALSE !(s__state == 8576) [L172] COND FALSE !(s__state == 8577) [L175] COND FALSE !(s__state == 8592) [L178] COND FALSE !(s__state == 8593) [L181] COND FALSE !(s__state == 8608) [L184] COND FALSE !(s__state == 8609) [L187] COND FALSE !(s__state == 8640) [L190] COND FALSE !(s__state == 8641) [L193] COND FALSE !(s__state == 8656) [L196] COND FALSE !(s__state == 8657) [L199] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND TRUE blastFlag == 3 [L609] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1247 SDtfs, 1552 SDslu, 164 SDs, 0 SdLazy, 1291 SolverSat, 569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 44 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1208 NumberOfCodeBlocks, 1208 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1086 ConstructedInterpolants, 0 QuantifiedInterpolants, 153466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 603/603 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...