./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fb7e842c9cc7c34f1770862f1d9d5e094000777 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:50:27,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:50:27,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:50:27,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:50:27,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:50:27,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:50:27,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:50:27,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:50:27,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:50:27,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:50:27,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:50:27,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:50:27,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:50:27,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:50:27,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:50:27,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:50:27,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:50:27,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:50:27,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:50:27,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:50:27,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:50:27,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:50:27,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:50:27,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:50:27,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:50:27,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:50:27,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:50:27,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:50:27,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:50:27,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:50:27,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:50:27,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:50:27,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:50:27,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:50:27,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:50:27,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:50:27,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:50:27,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:50:27,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:50:27,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:50:27,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:50:27,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:50:27,764 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:50:27,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:50:27,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:50:27,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:50:27,771 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:50:27,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:50:27,772 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:50:27,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:50:27,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:50:27,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:50:27,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:50:27,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:50:27,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:50:27,774 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:50:27,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:50:27,775 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:50:27,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:50:27,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:50:27,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:50:27,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:50:27,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:50:27,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:50:27,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:50:27,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:50:27,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:50:27,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:50:27,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:50:27,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:50:27,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:50:27,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fb7e842c9cc7c34f1770862f1d9d5e094000777 [2020-11-30 00:50:28,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:50:28,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:50:28,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:50:28,208 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:50:28,209 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:50:28,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2020-11-30 00:50:28,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/data/ab924e910/57897bee1e6f484fb2cec7c861f50266/FLAG8470b669c [2020-11-30 00:50:28,974 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:50:28,975 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2020-11-30 00:50:28,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/data/ab924e910/57897bee1e6f484fb2cec7c861f50266/FLAG8470b669c [2020-11-30 00:50:29,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/data/ab924e910/57897bee1e6f484fb2cec7c861f50266 [2020-11-30 00:50:29,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:50:29,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:50:29,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:50:29,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:50:29,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:50:29,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:29,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2013d729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29, skipping insertion in model container [2020-11-30 00:50:29,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:29,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:50:29,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:50:29,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:50:29,770 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:50:29,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:50:29,891 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:50:29,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29 WrapperNode [2020-11-30 00:50:29,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:50:29,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:50:29,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:50:29,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:50:29,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:29,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:29,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:50:30,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:50:30,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:50:30,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:50:30,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:30,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:30,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:30,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:30,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:30,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:30,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... [2020-11-30 00:50:30,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:50:30,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:50:30,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:50:30,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:50:30,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:50:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:50:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:50:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:50:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:50:30,368 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 00:50:31,384 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-30 00:50:31,384 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-30 00:50:31,398 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:50:31,398 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:50:31,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:50:31 BoogieIcfgContainer [2020-11-30 00:50:31,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:50:31,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:50:31,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:50:31,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:50:31,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:50:29" (1/3) ... [2020-11-30 00:50:31,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d5c1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:50:31, skipping insertion in model container [2020-11-30 00:50:31,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:50:29" (2/3) ... [2020-11-30 00:50:31,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d5c1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:50:31, skipping insertion in model container [2020-11-30 00:50:31,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:50:31" (3/3) ... [2020-11-30 00:50:31,410 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.c [2020-11-30 00:50:31,422 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:50:31,428 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:50:31,441 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:50:31,470 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:50:31,470 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:50:31,470 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:50:31,470 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:50:31,470 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:50:31,470 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:50:31,471 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:50:31,471 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:50:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-11-30 00:50:31,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 00:50:31,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:31,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:31,498 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:31,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:31,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-11-30 00:50:31,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:31,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36153230] [2020-11-30 00:50:31,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:50:31,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36153230] [2020-11-30 00:50:31,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:31,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:31,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040706223] [2020-11-30 00:50:31,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:31,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:31,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:31,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:31,856 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-11-30 00:50:32,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:32,233 INFO L93 Difference]: Finished difference Result 253 states and 428 transitions. [2020-11-30 00:50:32,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:32,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-30 00:50:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:32,294 INFO L225 Difference]: With dead ends: 253 [2020-11-30 00:50:32,295 INFO L226 Difference]: Without dead ends: 115 [2020-11-30 00:50:32,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:32,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-30 00:50:32,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-30 00:50:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-30 00:50:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-11-30 00:50:32,379 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-11-30 00:50:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:32,379 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-11-30 00:50:32,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-11-30 00:50:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 00:50:32,382 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:32,382 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:32,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:50:32,386 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:32,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:32,388 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-11-30 00:50:32,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:32,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286412005] [2020-11-30 00:50:32,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:32,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:50:32,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286412005] [2020-11-30 00:50:32,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:32,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:32,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543598810] [2020-11-30 00:50:32,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:32,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:32,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:32,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:32,512 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-11-30 00:50:32,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:32,819 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2020-11-30 00:50:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:32,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-30 00:50:32,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:32,822 INFO L225 Difference]: With dead ends: 238 [2020-11-30 00:50:32,822 INFO L226 Difference]: Without dead ends: 133 [2020-11-30 00:50:32,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:32,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-11-30 00:50:32,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2020-11-30 00:50:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-30 00:50:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-11-30 00:50:32,837 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-11-30 00:50:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:32,837 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-11-30 00:50:32,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-11-30 00:50:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-30 00:50:32,840 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:32,840 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:32,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:50:32,841 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:32,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:32,842 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2020-11-30 00:50:32,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:32,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025158505] [2020-11-30 00:50:32,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 00:50:32,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025158505] [2020-11-30 00:50:32,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:32,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:32,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253744440] [2020-11-30 00:50:32,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:32,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:32,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:32,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:32,998 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-11-30 00:50:33,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:33,454 INFO L93 Difference]: Finished difference Result 272 states and 408 transitions. [2020-11-30 00:50:33,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:33,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-30 00:50:33,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:33,457 INFO L225 Difference]: With dead ends: 272 [2020-11-30 00:50:33,457 INFO L226 Difference]: Without dead ends: 152 [2020-11-30 00:50:33,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:33,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-30 00:50:33,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2020-11-30 00:50:33,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-30 00:50:33,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-11-30 00:50:33,474 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-11-30 00:50:33,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:33,475 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-11-30 00:50:33,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-11-30 00:50:33,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-30 00:50:33,478 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:33,478 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:33,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:50:33,479 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:33,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:33,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1238030766, now seen corresponding path program 1 times [2020-11-30 00:50:33,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:33,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169557585] [2020-11-30 00:50:33,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-30 00:50:33,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169557585] [2020-11-30 00:50:33,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:33,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:33,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852215355] [2020-11-30 00:50:33,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:33,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:33,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:33,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:33,618 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-11-30 00:50:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:33,906 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-11-30 00:50:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:33,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-30 00:50:33,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:33,909 INFO L225 Difference]: With dead ends: 335 [2020-11-30 00:50:33,910 INFO L226 Difference]: Without dead ends: 197 [2020-11-30 00:50:33,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-11-30 00:50:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-11-30 00:50:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-11-30 00:50:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-11-30 00:50:33,940 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-11-30 00:50:33,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:33,941 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-11-30 00:50:33,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-11-30 00:50:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-30 00:50:33,944 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:33,945 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:33,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:50:33,945 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:33,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:33,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1251498196, now seen corresponding path program 1 times [2020-11-30 00:50:33,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:33,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579499533] [2020-11-30 00:50:33,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-30 00:50:34,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579499533] [2020-11-30 00:50:34,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:34,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:34,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089794731] [2020-11-30 00:50:34,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:34,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:34,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:34,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:34,083 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-11-30 00:50:34,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:34,286 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2020-11-30 00:50:34,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:34,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-30 00:50:34,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:34,288 INFO L225 Difference]: With dead ends: 390 [2020-11-30 00:50:34,289 INFO L226 Difference]: Without dead ends: 212 [2020-11-30 00:50:34,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:34,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-30 00:50:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-11-30 00:50:34,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-11-30 00:50:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-11-30 00:50:34,303 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-11-30 00:50:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:34,303 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-11-30 00:50:34,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-11-30 00:50:34,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-30 00:50:34,308 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:34,308 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:34,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:50:34,309 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:34,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:34,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1821092144, now seen corresponding path program 1 times [2020-11-30 00:50:34,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:34,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575045932] [2020-11-30 00:50:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:34,434 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-30 00:50:34,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575045932] [2020-11-30 00:50:34,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:34,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:34,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086939347] [2020-11-30 00:50:34,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:34,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:34,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:34,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:34,441 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-11-30 00:50:34,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:34,668 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-11-30 00:50:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:34,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-11-30 00:50:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:34,671 INFO L225 Difference]: With dead ends: 428 [2020-11-30 00:50:34,671 INFO L226 Difference]: Without dead ends: 231 [2020-11-30 00:50:34,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:34,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-30 00:50:34,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-11-30 00:50:34,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-11-30 00:50:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-11-30 00:50:34,684 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-11-30 00:50:34,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:34,685 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-11-30 00:50:34,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-11-30 00:50:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-30 00:50:34,697 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:34,697 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:34,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:50:34,698 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:34,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:34,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1901861672, now seen corresponding path program 1 times [2020-11-30 00:50:34,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:34,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923243085] [2020-11-30 00:50:34,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-30 00:50:34,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923243085] [2020-11-30 00:50:34,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:34,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:34,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898691427] [2020-11-30 00:50:34,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:34,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:34,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:34,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:34,766 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-11-30 00:50:34,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:34,840 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2020-11-30 00:50:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:34,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-30 00:50:34,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:34,845 INFO L225 Difference]: With dead ends: 661 [2020-11-30 00:50:34,845 INFO L226 Difference]: Without dead ends: 443 [2020-11-30 00:50:34,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-11-30 00:50:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-11-30 00:50:34,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-11-30 00:50:34,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2020-11-30 00:50:34,877 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2020-11-30 00:50:34,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:34,878 INFO L481 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2020-11-30 00:50:34,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2020-11-30 00:50:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-30 00:50:34,890 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:34,891 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:34,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:50:34,891 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:34,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:34,892 INFO L82 PathProgramCache]: Analyzing trace with hash 837467901, now seen corresponding path program 1 times [2020-11-30 00:50:34,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:34,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250139398] [2020-11-30 00:50:34,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-30 00:50:35,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250139398] [2020-11-30 00:50:35,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:35,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:35,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827458356] [2020-11-30 00:50:35,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:35,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:35,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:35,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,020 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand 3 states. [2020-11-30 00:50:35,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:35,062 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2020-11-30 00:50:35,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:35,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-30 00:50:35,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:35,066 INFO L225 Difference]: With dead ends: 897 [2020-11-30 00:50:35,067 INFO L226 Difference]: Without dead ends: 464 [2020-11-30 00:50:35,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-11-30 00:50:35,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-11-30 00:50:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-11-30 00:50:35,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2020-11-30 00:50:35,083 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 106 [2020-11-30 00:50:35,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:35,083 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2020-11-30 00:50:35,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:35,084 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2020-11-30 00:50:35,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-30 00:50:35,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:35,086 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:35,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:50:35,086 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:35,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:35,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1077707647, now seen corresponding path program 1 times [2020-11-30 00:50:35,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:35,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287703063] [2020-11-30 00:50:35,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-11-30 00:50:35,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287703063] [2020-11-30 00:50:35,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:35,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:35,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218298392] [2020-11-30 00:50:35,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:35,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:35,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:35,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,142 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand 3 states. [2020-11-30 00:50:35,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:35,176 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2020-11-30 00:50:35,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:35,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-30 00:50:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:35,181 INFO L225 Difference]: With dead ends: 945 [2020-11-30 00:50:35,181 INFO L226 Difference]: Without dead ends: 491 [2020-11-30 00:50:35,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-11-30 00:50:35,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-11-30 00:50:35,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-11-30 00:50:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2020-11-30 00:50:35,199 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2020-11-30 00:50:35,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:35,199 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2020-11-30 00:50:35,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2020-11-30 00:50:35,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-30 00:50:35,201 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:35,202 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:35,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:50:35,202 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:35,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:35,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2015927886, now seen corresponding path program 1 times [2020-11-30 00:50:35,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:35,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254621839] [2020-11-30 00:50:35,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-30 00:50:35,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254621839] [2020-11-30 00:50:35,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:35,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:35,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741792224] [2020-11-30 00:50:35,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:35,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:35,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:35,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,295 INFO L87 Difference]: Start difference. First operand 491 states and 667 transitions. Second operand 3 states. [2020-11-30 00:50:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:35,389 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2020-11-30 00:50:35,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:35,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-30 00:50:35,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:35,395 INFO L225 Difference]: With dead ends: 709 [2020-11-30 00:50:35,395 INFO L226 Difference]: Without dead ends: 707 [2020-11-30 00:50:35,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-11-30 00:50:35,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2020-11-30 00:50:35,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-11-30 00:50:35,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2020-11-30 00:50:35,423 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2020-11-30 00:50:35,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:35,424 INFO L481 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2020-11-30 00:50:35,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:35,424 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2020-11-30 00:50:35,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-11-30 00:50:35,427 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:35,427 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:35,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:50:35,428 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:35,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1870688019, now seen corresponding path program 1 times [2020-11-30 00:50:35,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:35,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961069662] [2020-11-30 00:50:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-30 00:50:35,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961069662] [2020-11-30 00:50:35,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:35,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:35,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836289869] [2020-11-30 00:50:35,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:35,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:35,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:35,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,537 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand 3 states. [2020-11-30 00:50:35,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:35,836 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2020-11-30 00:50:35,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:35,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-11-30 00:50:35,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:35,843 INFO L225 Difference]: With dead ends: 1530 [2020-11-30 00:50:35,843 INFO L226 Difference]: Without dead ends: 857 [2020-11-30 00:50:35,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-11-30 00:50:35,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2020-11-30 00:50:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-11-30 00:50:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2020-11-30 00:50:35,873 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 162 [2020-11-30 00:50:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:35,874 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2020-11-30 00:50:35,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:35,874 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2020-11-30 00:50:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-11-30 00:50:35,877 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:35,878 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:35,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:50:35,878 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:35,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:35,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1491644371, now seen corresponding path program 1 times [2020-11-30 00:50:35,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:35,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883094045] [2020-11-30 00:50:35,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-11-30 00:50:35,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883094045] [2020-11-30 00:50:35,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:35,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:35,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749418994] [2020-11-30 00:50:35,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:35,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:35,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:35,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:35,986 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand 3 states. [2020-11-30 00:50:36,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:36,271 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2020-11-30 00:50:36,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:36,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-11-30 00:50:36,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:36,279 INFO L225 Difference]: With dead ends: 1892 [2020-11-30 00:50:36,280 INFO L226 Difference]: Without dead ends: 1054 [2020-11-30 00:50:36,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:36,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-11-30 00:50:36,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2020-11-30 00:50:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-11-30 00:50:36,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2020-11-30 00:50:36,314 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2020-11-30 00:50:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:36,315 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2020-11-30 00:50:36,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2020-11-30 00:50:36,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-30 00:50:36,319 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:36,320 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:36,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:50:36,320 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:36,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:36,321 INFO L82 PathProgramCache]: Analyzing trace with hash -637948485, now seen corresponding path program 1 times [2020-11-30 00:50:36,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:36,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873253479] [2020-11-30 00:50:36,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-11-30 00:50:36,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873253479] [2020-11-30 00:50:36,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:36,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:36,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333242671] [2020-11-30 00:50:36,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:36,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:36,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:36,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:36,446 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand 3 states. [2020-11-30 00:50:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:36,743 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2020-11-30 00:50:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:36,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-11-30 00:50:36,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:36,752 INFO L225 Difference]: With dead ends: 2148 [2020-11-30 00:50:36,752 INFO L226 Difference]: Without dead ends: 1127 [2020-11-30 00:50:36,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:36,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-11-30 00:50:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2020-11-30 00:50:36,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-11-30 00:50:36,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2020-11-30 00:50:36,794 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2020-11-30 00:50:36,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:36,794 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2020-11-30 00:50:36,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:36,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2020-11-30 00:50:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-30 00:50:36,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:36,800 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:36,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:50:36,800 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:36,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:36,801 INFO L82 PathProgramCache]: Analyzing trace with hash 668090344, now seen corresponding path program 1 times [2020-11-30 00:50:36,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:36,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115828209] [2020-11-30 00:50:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:36,924 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-11-30 00:50:36,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115828209] [2020-11-30 00:50:36,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:36,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:36,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198859064] [2020-11-30 00:50:36,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:36,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:36,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:36,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:36,930 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand 3 states. [2020-11-30 00:50:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:37,208 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2020-11-30 00:50:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:37,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-30 00:50:37,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:37,217 INFO L225 Difference]: With dead ends: 2298 [2020-11-30 00:50:37,217 INFO L226 Difference]: Without dead ends: 1208 [2020-11-30 00:50:37,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:37,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-11-30 00:50:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2020-11-30 00:50:37,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-11-30 00:50:37,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2020-11-30 00:50:37,271 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2020-11-30 00:50:37,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:37,272 INFO L481 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2020-11-30 00:50:37,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:37,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2020-11-30 00:50:37,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-30 00:50:37,277 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:37,278 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:37,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 00:50:37,278 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:37,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:37,279 INFO L82 PathProgramCache]: Analyzing trace with hash 786531818, now seen corresponding path program 1 times [2020-11-30 00:50:37,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:37,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489428992] [2020-11-30 00:50:37,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:37,389 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-11-30 00:50:37,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489428992] [2020-11-30 00:50:37,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:37,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:37,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72341720] [2020-11-30 00:50:37,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:37,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:37,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:37,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:37,392 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand 3 states. [2020-11-30 00:50:37,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:37,722 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2020-11-30 00:50:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:37,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-30 00:50:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:37,732 INFO L225 Difference]: With dead ends: 2466 [2020-11-30 00:50:37,732 INFO L226 Difference]: Without dead ends: 1304 [2020-11-30 00:50:37,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:37,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-11-30 00:50:37,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2020-11-30 00:50:37,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-11-30 00:50:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2020-11-30 00:50:37,780 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2020-11-30 00:50:37,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:37,781 INFO L481 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2020-11-30 00:50:37,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:37,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2020-11-30 00:50:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-30 00:50:37,787 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:37,787 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:37,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 00:50:37,788 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:37,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:37,789 INFO L82 PathProgramCache]: Analyzing trace with hash 12496008, now seen corresponding path program 1 times [2020-11-30 00:50:37,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:37,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248854595] [2020-11-30 00:50:37,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-11-30 00:50:37,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248854595] [2020-11-30 00:50:37,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:37,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:37,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232726608] [2020-11-30 00:50:37,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:37,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:37,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:37,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:37,950 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand 3 states. [2020-11-30 00:50:38,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:38,016 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2020-11-30 00:50:38,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:38,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-11-30 00:50:38,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:38,034 INFO L225 Difference]: With dead ends: 3718 [2020-11-30 00:50:38,034 INFO L226 Difference]: Without dead ends: 2490 [2020-11-30 00:50:38,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:38,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2020-11-30 00:50:38,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2020-11-30 00:50:38,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2020-11-30 00:50:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2020-11-30 00:50:38,125 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2020-11-30 00:50:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:38,125 INFO L481 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2020-11-30 00:50:38,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2020-11-30 00:50:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-30 00:50:38,134 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:38,134 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:38,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 00:50:38,134 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:38,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:38,135 INFO L82 PathProgramCache]: Analyzing trace with hash 130937482, now seen corresponding path program 1 times [2020-11-30 00:50:38,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:38,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151330184] [2020-11-30 00:50:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:38,269 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-11-30 00:50:38,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151330184] [2020-11-30 00:50:38,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:38,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:38,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427010780] [2020-11-30 00:50:38,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:38,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:38,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:38,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:38,271 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand 3 states. [2020-11-30 00:50:38,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:38,615 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2020-11-30 00:50:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:38,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-11-30 00:50:38,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:38,636 INFO L225 Difference]: With dead ends: 5251 [2020-11-30 00:50:38,636 INFO L226 Difference]: Without dead ends: 2770 [2020-11-30 00:50:38,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:38,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-11-30 00:50:38,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2020-11-30 00:50:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-11-30 00:50:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2020-11-30 00:50:38,741 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2020-11-30 00:50:38,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:38,742 INFO L481 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2020-11-30 00:50:38,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2020-11-30 00:50:38,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-11-30 00:50:38,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:38,751 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:38,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 00:50:38,752 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:38,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:38,752 INFO L82 PathProgramCache]: Analyzing trace with hash -142796669, now seen corresponding path program 1 times [2020-11-30 00:50:38,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:38,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581268524] [2020-11-30 00:50:38,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-11-30 00:50:38,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581268524] [2020-11-30 00:50:38,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:38,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:38,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673410279] [2020-11-30 00:50:38,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:38,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:38,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:38,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:38,960 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand 3 states. [2020-11-30 00:50:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:39,331 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2020-11-30 00:50:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:39,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-11-30 00:50:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:39,351 INFO L225 Difference]: With dead ends: 5443 [2020-11-30 00:50:39,352 INFO L226 Difference]: Without dead ends: 2764 [2020-11-30 00:50:39,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:39,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2020-11-30 00:50:39,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2020-11-30 00:50:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-11-30 00:50:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2020-11-30 00:50:39,457 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2020-11-30 00:50:39,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:39,457 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2020-11-30 00:50:39,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:39,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2020-11-30 00:50:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-11-30 00:50:39,468 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:39,468 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:39,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 00:50:39,469 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:39,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:39,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1408099866, now seen corresponding path program 1 times [2020-11-30 00:50:39,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:39,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245442455] [2020-11-30 00:50:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:39,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-11-30 00:50:39,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245442455] [2020-11-30 00:50:39,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:39,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:39,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156745805] [2020-11-30 00:50:39,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:39,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:39,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:39,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:39,646 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand 3 states. [2020-11-30 00:50:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:39,936 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2020-11-30 00:50:39,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:39,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-11-30 00:50:39,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:39,956 INFO L225 Difference]: With dead ends: 5407 [2020-11-30 00:50:39,956 INFO L226 Difference]: Without dead ends: 2752 [2020-11-30 00:50:39,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2020-11-30 00:50:40,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2020-11-30 00:50:40,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-11-30 00:50:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2020-11-30 00:50:40,079 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 308 [2020-11-30 00:50:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:40,080 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2020-11-30 00:50:40,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2020-11-30 00:50:40,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-11-30 00:50:40,089 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:40,090 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:40,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-30 00:50:40,090 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:40,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:40,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1960500931, now seen corresponding path program 1 times [2020-11-30 00:50:40,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:40,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146381942] [2020-11-30 00:50:40,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:40,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-30 00:50:40,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146381942] [2020-11-30 00:50:40,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:40,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:40,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313447713] [2020-11-30 00:50:40,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:40,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:40,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:40,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:40,265 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand 3 states. [2020-11-30 00:50:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:40,592 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2020-11-30 00:50:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:40,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-11-30 00:50:40,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:40,612 INFO L225 Difference]: With dead ends: 5653 [2020-11-30 00:50:40,612 INFO L226 Difference]: Without dead ends: 2998 [2020-11-30 00:50:40,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:40,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2020-11-30 00:50:40,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2020-11-30 00:50:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2020-11-30 00:50:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2020-11-30 00:50:40,722 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2020-11-30 00:50:40,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:40,723 INFO L481 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2020-11-30 00:50:40,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:40,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2020-11-30 00:50:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-11-30 00:50:40,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:40,733 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:40,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-30 00:50:40,733 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:40,734 INFO L82 PathProgramCache]: Analyzing trace with hash 806996379, now seen corresponding path program 1 times [2020-11-30 00:50:40,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:40,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822632690] [2020-11-30 00:50:40,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-11-30 00:50:41,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822632690] [2020-11-30 00:50:41,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:41,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:41,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170034599] [2020-11-30 00:50:41,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:41,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:41,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:41,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:41,006 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand 3 states. [2020-11-30 00:50:41,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:41,148 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2020-11-30 00:50:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:41,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-11-30 00:50:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:41,199 INFO L225 Difference]: With dead ends: 7882 [2020-11-30 00:50:41,200 INFO L226 Difference]: Without dead ends: 5137 [2020-11-30 00:50:41,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-11-30 00:50:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2020-11-30 00:50:41,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5135 states. [2020-11-30 00:50:41,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2020-11-30 00:50:41,406 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2020-11-30 00:50:41,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:41,407 INFO L481 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2020-11-30 00:50:41,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:41,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2020-11-30 00:50:41,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-11-30 00:50:41,421 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:41,422 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:41,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-30 00:50:41,422 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:41,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:41,423 INFO L82 PathProgramCache]: Analyzing trace with hash 722980357, now seen corresponding path program 1 times [2020-11-30 00:50:41,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:41,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991643102] [2020-11-30 00:50:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-11-30 00:50:41,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991643102] [2020-11-30 00:50:41,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115055020] [2020-11-30 00:50:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:50:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:41,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:50:41,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:50:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-11-30 00:50:42,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:50:42,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 00:50:42,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460663949] [2020-11-30 00:50:42,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:50:42,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:42,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:50:42,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:50:42,191 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand 4 states. [2020-11-30 00:50:43,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:43,062 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2020-11-30 00:50:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:50:43,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 347 [2020-11-30 00:50:43,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:43,082 INFO L225 Difference]: With dead ends: 10175 [2020-11-30 00:50:43,082 INFO L226 Difference]: Without dead ends: 7688 [2020-11-30 00:50:43,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:50:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2020-11-30 00:50:43,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2020-11-30 00:50:43,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-11-30 00:50:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2020-11-30 00:50:43,303 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 347 [2020-11-30 00:50:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:43,304 INFO L481 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2020-11-30 00:50:43,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:50:43,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2020-11-30 00:50:43,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-11-30 00:50:43,318 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:43,318 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:43,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-11-30 00:50:43,532 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:43,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1881562091, now seen corresponding path program 1 times [2020-11-30 00:50:43,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:43,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702634154] [2020-11-30 00:50:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-30 00:50:43,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702634154] [2020-11-30 00:50:43,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103270035] [2020-11-30 00:50:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:50:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:44,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:50:44,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:50:44,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-30 00:50:44,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:50:44,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 00:50:44,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344968548] [2020-11-30 00:50:44,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:50:44,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:44,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:50:44,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:50:44,166 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand 4 states. [2020-11-30 00:50:44,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:44,844 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2020-11-30 00:50:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:50:44,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-11-30 00:50:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:44,863 INFO L225 Difference]: With dead ends: 12703 [2020-11-30 00:50:44,863 INFO L226 Difference]: Without dead ends: 7058 [2020-11-30 00:50:44,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:50:44,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2020-11-30 00:50:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2020-11-30 00:50:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5789 states. [2020-11-30 00:50:45,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2020-11-30 00:50:45,099 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2020-11-30 00:50:45,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:45,099 INFO L481 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2020-11-30 00:50:45,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:50:45,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2020-11-30 00:50:45,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-11-30 00:50:45,115 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:45,116 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:45,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-11-30 00:50:45,344 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:45,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:45,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1433443056, now seen corresponding path program 1 times [2020-11-30 00:50:45,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:45,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169378761] [2020-11-30 00:50:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:45,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-11-30 00:50:45,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169378761] [2020-11-30 00:50:45,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:50:45,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:50:45,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678345834] [2020-11-30 00:50:45,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:45,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:45,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:45,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:45,605 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand 3 states. [2020-11-30 00:50:45,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:45,888 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2020-11-30 00:50:45,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:45,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-11-30 00:50:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:45,896 INFO L225 Difference]: With dead ends: 11133 [2020-11-30 00:50:45,896 INFO L226 Difference]: Without dead ends: 3109 [2020-11-30 00:50:45,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:50:45,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-11-30 00:50:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2020-11-30 00:50:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3043 states. [2020-11-30 00:50:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2020-11-30 00:50:46,065 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2020-11-30 00:50:46,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:46,066 INFO L481 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2020-11-30 00:50:46,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2020-11-30 00:50:46,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2020-11-30 00:50:46,080 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:46,081 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:46,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-30 00:50:46,081 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:46,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:46,082 INFO L82 PathProgramCache]: Analyzing trace with hash -517038626, now seen corresponding path program 1 times [2020-11-30 00:50:46,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:46,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408837106] [2020-11-30 00:50:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2020-11-30 00:50:46,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408837106] [2020-11-30 00:50:46,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795681687] [2020-11-30 00:50:46,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:50:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:46,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:50:46,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:50:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2020-11-30 00:50:46,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:50:46,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 00:50:46,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966287636] [2020-11-30 00:50:46,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:46,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:46,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:46,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:50:46,995 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand 3 states. [2020-11-30 00:50:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:47,044 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2020-11-30 00:50:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:47,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 497 [2020-11-30 00:50:47,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:47,051 INFO L225 Difference]: With dead ends: 3068 [2020-11-30 00:50:47,051 INFO L226 Difference]: Without dead ends: 2571 [2020-11-30 00:50:47,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:50:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2020-11-30 00:50:47,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2020-11-30 00:50:47,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-11-30 00:50:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2020-11-30 00:50:47,125 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 497 [2020-11-30 00:50:47,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:47,127 INFO L481 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2020-11-30 00:50:47,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2020-11-30 00:50:47,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2020-11-30 00:50:47,134 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:47,135 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:47,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-30 00:50:47,348 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:47,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:47,349 INFO L82 PathProgramCache]: Analyzing trace with hash 706380836, now seen corresponding path program 1 times [2020-11-30 00:50:47,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:47,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037728071] [2020-11-30 00:50:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 1546 proven. 14 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2020-11-30 00:50:47,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037728071] [2020-11-30 00:50:47,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451467486] [2020-11-30 00:50:47,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:50:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:47,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:50:47,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:50:48,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 2339 trivial. 0 not checked. [2020-11-30 00:50:48,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:50:48,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 00:50:48,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111909041] [2020-11-30 00:50:48,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:50:48,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:48,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:50:48,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:50:48,212 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand 3 states. [2020-11-30 00:50:48,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:48,569 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2020-11-30 00:50:48,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:50:48,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 498 [2020-11-30 00:50:48,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:48,577 INFO L225 Difference]: With dead ends: 5167 [2020-11-30 00:50:48,577 INFO L226 Difference]: Without dead ends: 2656 [2020-11-30 00:50:48,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:50:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-11-30 00:50:48,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2020-11-30 00:50:48,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2653 states. [2020-11-30 00:50:48,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2020-11-30 00:50:48,659 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 498 [2020-11-30 00:50:48,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:48,660 INFO L481 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2020-11-30 00:50:48,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:50:48,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2020-11-30 00:50:48,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2020-11-30 00:50:48,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:50:48,673 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:50:48,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:50:48,886 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:50:48,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:50:48,887 INFO L82 PathProgramCache]: Analyzing trace with hash 180586689, now seen corresponding path program 2 times [2020-11-30 00:50:48,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:50:48,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629837385] [2020-11-30 00:50:48,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:50:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:50:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-11-30 00:50:49,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629837385] [2020-11-30 00:50:49,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209719342] [2020-11-30 00:50:49,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:50:49,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:50:49,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:50:49,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:50:49,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:50:50,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-11-30 00:50:50,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:50:50,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 00:50:50,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396112627] [2020-11-30 00:50:50,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:50:50,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:50:50,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:50:50,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:50:50,059 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand 4 states. [2020-11-30 00:50:50,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:50:50,379 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2020-11-30 00:50:50,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:50:50,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 609 [2020-11-30 00:50:50,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:50:50,381 INFO L225 Difference]: With dead ends: 2888 [2020-11-30 00:50:50,381 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:50:50,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:50:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:50:50,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:50:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:50:50,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:50:50,385 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 609 [2020-11-30 00:50:50,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:50:50,386 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:50:50,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:50:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:50:50,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:50:50,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-30 00:50:50,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:50:51,126 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 115 [2020-11-30 00:50:51,335 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 19 [2020-11-30 00:50:51,441 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-11-30 00:50:52,294 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-11-30 00:50:52,733 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 20 [2020-11-30 00:50:52,813 INFO L274 CegarLoopResult]: For program point L498(lines 498 500) no Hoare annotation was computed. [2020-11-30 00:50:52,813 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 500) no Hoare annotation was computed. [2020-11-30 00:50:52,813 INFO L274 CegarLoopResult]: For program point L300(lines 300 304) no Hoare annotation was computed. [2020-11-30 00:50:52,813 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 304) no Hoare annotation was computed. [2020-11-30 00:50:52,814 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:50:52,814 INFO L277 CegarLoopResult]: At program point L565(lines 108 566) the Hoare annotation is: true [2020-11-30 00:50:52,814 INFO L274 CegarLoopResult]: For program point L202(lines 202 515) no Hoare annotation was computed. [2020-11-30 00:50:52,814 INFO L274 CegarLoopResult]: For program point L169(lines 169 526) no Hoare annotation was computed. [2020-11-30 00:50:52,814 INFO L274 CegarLoopResult]: For program point L136(lines 136 537) no Hoare annotation was computed. [2020-11-30 00:50:52,814 INFO L274 CegarLoopResult]: For program point L103(lines 103 107) no Hoare annotation was computed. [2020-11-30 00:50:52,814 INFO L270 CegarLoopResult]: At program point L203(lines 199 516) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2) (and .cse0 (not .cse2) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2020-11-30 00:50:52,815 INFO L270 CegarLoopResult]: At program point L137(lines 133 538) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-30 00:50:52,815 INFO L274 CegarLoopResult]: For program point L104(lines 104 106) no Hoare annotation was computed. [2020-11-30 00:50:52,815 INFO L274 CegarLoopResult]: For program point L237(lines 237 253) no Hoare annotation was computed. [2020-11-30 00:50:52,815 INFO L274 CegarLoopResult]: For program point L237-2(lines 212 510) no Hoare annotation was computed. [2020-11-30 00:50:52,816 INFO L274 CegarLoopResult]: For program point L469(lines 469 481) no Hoare annotation was computed. [2020-11-30 00:50:52,817 INFO L274 CegarLoopResult]: For program point L436(lines 436 450) no Hoare annotation was computed. [2020-11-30 00:50:52,817 INFO L274 CegarLoopResult]: For program point L436-1(lines 436 450) no Hoare annotation was computed. [2020-11-30 00:50:52,818 INFO L274 CegarLoopResult]: For program point L469-2(lines 469 481) no Hoare annotation was computed. [2020-11-30 00:50:52,818 INFO L274 CegarLoopResult]: For program point L337(lines 337 340) no Hoare annotation was computed. [2020-11-30 00:50:52,818 INFO L274 CegarLoopResult]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-11-30 00:50:52,818 INFO L274 CegarLoopResult]: For program point L205(lines 205 514) no Hoare annotation was computed. [2020-11-30 00:50:52,820 INFO L274 CegarLoopResult]: For program point L271-2(lines 212 510) no Hoare annotation was computed. [2020-11-30 00:50:52,820 INFO L274 CegarLoopResult]: For program point L172(lines 172 525) no Hoare annotation was computed. [2020-11-30 00:50:52,820 INFO L274 CegarLoopResult]: For program point L139(lines 139 536) no Hoare annotation was computed. [2020-11-30 00:50:52,821 INFO L274 CegarLoopResult]: For program point L503(lines 503 505) no Hoare annotation was computed. [2020-11-30 00:50:52,821 INFO L270 CegarLoopResult]: At program point L206(lines 205 514) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (not .cse1) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1))) [2020-11-30 00:50:52,821 INFO L270 CegarLoopResult]: At program point L173(lines 163 528) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-30 00:50:52,823 INFO L274 CegarLoopResult]: For program point L570(lines 570 572) no Hoare annotation was computed. [2020-11-30 00:50:52,824 INFO L274 CegarLoopResult]: For program point L570-2(lines 570 572) no Hoare annotation was computed. [2020-11-30 00:50:52,824 INFO L274 CegarLoopResult]: For program point L372(lines 372 374) no Hoare annotation was computed. [2020-11-30 00:50:52,824 INFO L274 CegarLoopResult]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-11-30 00:50:52,825 INFO L274 CegarLoopResult]: For program point L208(lines 208 513) no Hoare annotation was computed. [2020-11-30 00:50:52,825 INFO L274 CegarLoopResult]: For program point L175(lines 175 524) no Hoare annotation was computed. [2020-11-30 00:50:52,825 INFO L274 CegarLoopResult]: For program point L142(lines 142 535) no Hoare annotation was computed. [2020-11-30 00:50:52,825 INFO L274 CegarLoopResult]: For program point L109-1(lines 86 576) no Hoare annotation was computed. [2020-11-30 00:50:52,825 INFO L274 CegarLoopResult]: For program point L440(lines 440 446) no Hoare annotation was computed. [2020-11-30 00:50:52,826 INFO L277 CegarLoopResult]: At program point L209(lines 208 513) the Hoare annotation is: true [2020-11-30 00:50:52,826 INFO L270 CegarLoopResult]: At program point L143(lines 139 536) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2020-11-30 00:50:52,826 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-30 00:50:52,826 INFO L274 CegarLoopResult]: For program point L243(lines 243 246) no Hoare annotation was computed. [2020-11-30 00:50:52,827 INFO L274 CegarLoopResult]: For program point L475(lines 475 478) no Hoare annotation was computed. [2020-11-30 00:50:52,827 INFO L277 CegarLoopResult]: At program point L211(lines 210 513) the Hoare annotation is: true [2020-11-30 00:50:52,828 INFO L274 CegarLoopResult]: For program point L178(lines 178 523) no Hoare annotation was computed. [2020-11-30 00:50:52,828 INFO L274 CegarLoopResult]: For program point L145(lines 145 534) no Hoare annotation was computed. [2020-11-30 00:50:52,828 INFO L274 CegarLoopResult]: For program point L112(lines 112 545) no Hoare annotation was computed. [2020-11-30 00:50:52,828 INFO L277 CegarLoopResult]: At program point L575(lines 12 577) the Hoare annotation is: true [2020-11-30 00:50:52,828 INFO L274 CegarLoopResult]: For program point L311(lines 311 321) no Hoare annotation was computed. [2020-11-30 00:50:52,828 INFO L274 CegarLoopResult]: For program point L311-2(lines 311 321) no Hoare annotation was computed. [2020-11-30 00:50:52,829 INFO L270 CegarLoopResult]: At program point L179(lines 175 524) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-30 00:50:52,829 INFO L270 CegarLoopResult]: At program point L113(lines 112 545) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-30 00:50:52,829 INFO L274 CegarLoopResult]: For program point L345(lines 345 347) no Hoare annotation was computed. [2020-11-30 00:50:52,829 INFO L270 CegarLoopResult]: At program point L511(lines 109 564) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse8 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (not .cse7)) (.cse10 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse5 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse6 .cse10 .cse7) (and .cse8 .cse1 .cse2 .cse10) (and .cse0 .cse9 .cse3 .cse6 .cse7) (and .cse4 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse2 .cse11 .cse7) (and .cse12 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and .cse11 .cse6) (and .cse12 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse4 .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse2 .cse5 .cse7)))) [2020-11-30 00:50:52,830 INFO L274 CegarLoopResult]: For program point L412(lines 412 416) no Hoare annotation was computed. [2020-11-30 00:50:52,830 INFO L270 CegarLoopResult]: At program point L346(lines 86 576) the Hoare annotation is: false [2020-11-30 00:50:52,831 INFO L274 CegarLoopResult]: For program point L412-2(lines 212 510) no Hoare annotation was computed. [2020-11-30 00:50:52,831 INFO L274 CegarLoopResult]: For program point L181(lines 181 522) no Hoare annotation was computed. [2020-11-30 00:50:52,831 INFO L274 CegarLoopResult]: For program point L148(lines 148 533) no Hoare annotation was computed. [2020-11-30 00:50:52,831 INFO L274 CegarLoopResult]: For program point L115(lines 115 544) no Hoare annotation was computed. [2020-11-30 00:50:52,831 INFO L274 CegarLoopResult]: For program point L248(lines 248 251) no Hoare annotation was computed. [2020-11-30 00:50:52,832 INFO L270 CegarLoopResult]: At program point L149(lines 145 534) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-30 00:50:52,832 INFO L274 CegarLoopResult]: For program point L546(lines 546 562) no Hoare annotation was computed. [2020-11-30 00:50:52,832 INFO L274 CegarLoopResult]: For program point L381(lines 381 383) no Hoare annotation was computed. [2020-11-30 00:50:52,832 INFO L274 CegarLoopResult]: For program point L348(lines 348 350) no Hoare annotation was computed. [2020-11-30 00:50:52,832 INFO L274 CegarLoopResult]: For program point L315(lines 315 317) no Hoare annotation was computed. [2020-11-30 00:50:52,832 INFO L274 CegarLoopResult]: For program point L282(lines 282 284) no Hoare annotation was computed. [2020-11-30 00:50:52,832 INFO L274 CegarLoopResult]: For program point L315-2(lines 313 321) no Hoare annotation was computed. [2020-11-30 00:50:52,833 INFO L274 CegarLoopResult]: For program point L547(lines 547 561) no Hoare annotation was computed. [2020-11-30 00:50:52,833 INFO L270 CegarLoopResult]: At program point L217(lines 115 544) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)) [2020-11-30 00:50:52,833 INFO L274 CegarLoopResult]: For program point L184(lines 184 521) no Hoare annotation was computed. [2020-11-30 00:50:52,833 INFO L274 CegarLoopResult]: For program point L151(lines 151 532) no Hoare annotation was computed. [2020-11-30 00:50:52,834 INFO L274 CegarLoopResult]: For program point L118(lines 118 543) no Hoare annotation was computed. [2020-11-30 00:50:52,834 INFO L274 CegarLoopResult]: For program point L548(lines 548 553) no Hoare annotation was computed. [2020-11-30 00:50:52,834 INFO L274 CegarLoopResult]: For program point L548-2(lines 547 561) no Hoare annotation was computed. [2020-11-30 00:50:52,834 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:50:52,834 INFO L270 CegarLoopResult]: At program point L185(lines 181 522) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-30 00:50:52,834 INFO L274 CegarLoopResult]: For program point L550(lines 550 552) no Hoare annotation was computed. [2020-11-30 00:50:52,834 INFO L274 CegarLoopResult]: For program point L385(lines 385 390) no Hoare annotation was computed. [2020-11-30 00:50:52,835 INFO L274 CegarLoopResult]: For program point L385-2(lines 385 390) no Hoare annotation was computed. [2020-11-30 00:50:52,835 INFO L274 CegarLoopResult]: For program point L187(lines 187 520) no Hoare annotation was computed. [2020-11-30 00:50:52,835 INFO L274 CegarLoopResult]: For program point L154(lines 154 531) no Hoare annotation was computed. [2020-11-30 00:50:52,835 INFO L274 CegarLoopResult]: For program point L121(lines 121 542) no Hoare annotation was computed. [2020-11-30 00:50:52,835 INFO L270 CegarLoopResult]: At program point L155(lines 151 532) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-30 00:50:52,835 INFO L274 CegarLoopResult]: For program point L486-1(lines 486 488) no Hoare annotation was computed. [2020-11-30 00:50:52,835 INFO L274 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-11-30 00:50:52,836 INFO L274 CegarLoopResult]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-11-30 00:50:52,836 INFO L277 CegarLoopResult]: At program point L586(lines 578 588) the Hoare annotation is: true [2020-11-30 00:50:52,837 INFO L274 CegarLoopResult]: For program point L421(lines 421 424) no Hoare annotation was computed. [2020-11-30 00:50:52,837 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:50:52,837 INFO L274 CegarLoopResult]: For program point L190(lines 190 519) no Hoare annotation was computed. [2020-11-30 00:50:52,837 INFO L274 CegarLoopResult]: For program point L157(lines 157 530) no Hoare annotation was computed. [2020-11-30 00:50:52,837 INFO L274 CegarLoopResult]: For program point L124(lines 124 541) no Hoare annotation was computed. [2020-11-30 00:50:52,837 INFO L274 CegarLoopResult]: For program point L290(lines 290 296) no Hoare annotation was computed. [2020-11-30 00:50:52,838 INFO L270 CegarLoopResult]: At program point L191(lines 187 520) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-30 00:50:52,838 INFO L274 CegarLoopResult]: For program point L555(lines 555 559) no Hoare annotation was computed. [2020-11-30 00:50:52,838 INFO L274 CegarLoopResult]: For program point L456(lines 456 458) no Hoare annotation was computed. [2020-11-30 00:50:52,838 INFO L274 CegarLoopResult]: For program point L357(lines 357 359) no Hoare annotation was computed. [2020-11-30 00:50:52,838 INFO L274 CegarLoopResult]: For program point L259(lines 259 262) no Hoare annotation was computed. [2020-11-30 00:50:52,838 INFO L274 CegarLoopResult]: For program point L193(lines 193 518) no Hoare annotation was computed. [2020-11-30 00:50:52,838 INFO L274 CegarLoopResult]: For program point L160(lines 160 529) no Hoare annotation was computed. [2020-11-30 00:50:52,839 INFO L274 CegarLoopResult]: For program point L127(lines 127 540) no Hoare annotation was computed. [2020-11-30 00:50:52,839 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:50:52,839 INFO L274 CegarLoopResult]: For program point L293(lines 293 295) no Hoare annotation was computed. [2020-11-30 00:50:52,839 INFO L274 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-11-30 00:50:52,839 INFO L274 CegarLoopResult]: For program point L293-2(lines 212 510) no Hoare annotation was computed. [2020-11-30 00:50:52,839 INFO L270 CegarLoopResult]: At program point L161(lines 157 530) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-30 00:50:52,839 INFO L274 CegarLoopResult]: For program point L95(lines 95 101) no Hoare annotation was computed. [2020-11-30 00:50:52,840 INFO L274 CegarLoopResult]: For program point L492(lines 492 494) no Hoare annotation was computed. [2020-11-30 00:50:52,840 INFO L274 CegarLoopResult]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-11-30 00:50:52,840 INFO L274 CegarLoopResult]: For program point L492-2(lines 492 494) no Hoare annotation was computed. [2020-11-30 00:50:52,840 INFO L274 CegarLoopResult]: For program point L459-2(lines 459 463) no Hoare annotation was computed. [2020-11-30 00:50:52,840 INFO L274 CegarLoopResult]: For program point L360(lines 360 364) no Hoare annotation was computed. [2020-11-30 00:50:52,840 INFO L274 CegarLoopResult]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2020-11-30 00:50:52,840 INFO L274 CegarLoopResult]: For program point L196(lines 196 517) no Hoare annotation was computed. [2020-11-30 00:50:52,840 INFO L274 CegarLoopResult]: For program point L163(lines 163 528) no Hoare annotation was computed. [2020-11-30 00:50:52,841 INFO L274 CegarLoopResult]: For program point L130(lines 130 539) no Hoare annotation was computed. [2020-11-30 00:50:52,841 INFO L274 CegarLoopResult]: For program point L329(lines 329 331) no Hoare annotation was computed. [2020-11-30 00:50:52,841 INFO L274 CegarLoopResult]: For program point L329-2(lines 212 510) no Hoare annotation was computed. [2020-11-30 00:50:52,841 INFO L270 CegarLoopResult]: At program point L197(lines 193 518) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-11-30 00:50:52,841 INFO L270 CegarLoopResult]: At program point L131(lines 127 540) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-30 00:50:52,841 INFO L274 CegarLoopResult]: For program point L98(lines 98 100) no Hoare annotation was computed. [2020-11-30 00:50:52,842 INFO L274 CegarLoopResult]: For program point L98-2(lines 95 101) no Hoare annotation was computed. [2020-11-30 00:50:52,842 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:50:52,842 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:50:52,842 INFO L274 CegarLoopResult]: For program point L429(lines 429 431) no Hoare annotation was computed. [2020-11-30 00:50:52,842 INFO L274 CegarLoopResult]: For program point L396(lines 396 398) no Hoare annotation was computed. [2020-11-30 00:50:52,842 INFO L274 CegarLoopResult]: For program point L199(lines 199 516) no Hoare annotation was computed. [2020-11-30 00:50:52,842 INFO L274 CegarLoopResult]: For program point L166(lines 166 527) no Hoare annotation was computed. [2020-11-30 00:50:52,843 INFO L274 CegarLoopResult]: For program point L133(lines 133 538) no Hoare annotation was computed. [2020-11-30 00:50:52,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:50:52 BoogieIcfgContainer [2020-11-30 00:50:52,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:50:52,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:50:52,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:50:52,887 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:50:52,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:50:31" (3/4) ... [2020-11-30 00:50:52,891 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:50:52,920 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:50:52,921 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:50:52,922 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:50:52,923 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:50:53,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_91879f08-4e2d-4daf-b0f2-7331a5bd82d0/bin/uautomizer/witness.graphml [2020-11-30 00:50:53,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:50:53,070 INFO L168 Benchmark]: Toolchain (without parser) took 23771.02 ms. Allocated memory was 104.9 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 73.1 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 90.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:53,070 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 73.4 MB. Free memory was 31.4 MB in the beginning and 31.4 MB in the end (delta: 33.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:50:53,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.89 ms. Allocated memory is still 104.9 MB. Free memory was 72.9 MB in the beginning and 78.4 MB in the end (delta: -5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:53,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.91 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 75.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:53,071 INFO L168 Benchmark]: Boogie Preprocessor took 87.98 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 73.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:53,072 INFO L168 Benchmark]: RCFGBuilder took 1312.42 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 74.0 MB in the end (delta: -809.0 kB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:53,072 INFO L168 Benchmark]: TraceAbstraction took 21483.68 ms. Allocated memory was 104.9 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 73.4 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 761.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:53,073 INFO L168 Benchmark]: Witness Printer took 181.26 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:53,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 73.4 MB. Free memory was 31.4 MB in the beginning and 31.4 MB in the end (delta: 33.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 591.89 ms. Allocated memory is still 104.9 MB. Free memory was 72.9 MB in the beginning and 78.4 MB in the end (delta: -5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.91 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 75.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.98 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 73.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1312.42 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 74.0 MB in the end (delta: -809.0 kB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21483.68 ms. Allocated memory was 104.9 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 73.4 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 761.0 MB. Max. memory is 16.1 GB. * Witness Printer took 181.26 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((s__state <= 4560 && 4512 <= s__state) && blastFlag == 2)) || (((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4448) && s__hit == 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (s__state <= 4432 && blastFlag == 1) && 4352 <= s__state - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((((((((((((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || (((blastFlag <= 4 && 4400 == s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (((s__state <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state)) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && s__state == 4416) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || ((blastFlag == 2 && s__state <= 3) && s__hit == 0)) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368)) || ((blastFlag == 2 && 4400 == s__state) && s__hit == 0) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: ((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0) || (((s__state <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state) - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4464) && s__hit == 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4480) && s__hit == 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (blastFlag == 0 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: s__state <= 4352 && blastFlag == 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.1s, OverallIterations: 27, TraceHistogramMax: 21, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4907 SDtfs, 2134 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2412 GetRequests, 2375 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9035 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2018 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 8657 NumberOfCodeBlocks, 8657 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 8625 ConstructedInterpolants, 0 QuantifiedInterpolants, 4435883 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4061 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 24 PerfectInterpolantSequences, 37541/37631 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...