./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.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_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/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 0237d7665f4c4183d0858d7577c1caaad788a36b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:08:06,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:06,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:06,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:06,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:06,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:06,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:06,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:06,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:06,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:06,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:06,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:06,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:06,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:06,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:06,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:06,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:06,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:07,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:07,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:07,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:07,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:07,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:07,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:07,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:07,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:07,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:07,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:07,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:07,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:07,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:07,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:07,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:07,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:07,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:07,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:07,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:07,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:07,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:07,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:07,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:07,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:08:07,080 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:07,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:07,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:07,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:07,103 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:07,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:07,103 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:07,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:07,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:07,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:07,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:07,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:07,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:07,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:07,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:07,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:07,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:07,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:07,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:07,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:07,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:07,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:07,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:07,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:07,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:07,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:07,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:07,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:07,113 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:07,114 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_5071d845-3157-4560-8ed2-4301740905b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0237d7665f4c4183d0858d7577c1caaad788a36b [2020-11-28 03:08:07,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:07,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:07,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:07,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:07,457 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:07,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2020-11-28 03:08:07,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/data/b6edaf8a7/7b3f704df5354635893068535d374aad/FLAGdf22789ec [2020-11-28 03:08:08,233 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:08,233 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2020-11-28 03:08:08,247 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/data/b6edaf8a7/7b3f704df5354635893068535d374aad/FLAGdf22789ec [2020-11-28 03:08:08,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/data/b6edaf8a7/7b3f704df5354635893068535d374aad [2020-11-28 03:08:08,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:08,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:08,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:08,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:08,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:08,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d44daa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:08, skipping insertion in model container [2020-11-28 03:08:08,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:08" (1/1) ... [2020-11-28 03:08:08,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:08,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:08,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:08,937 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:09,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:09,036 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:09,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09 WrapperNode [2020-11-28 03:08:09,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:09,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:09,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:09,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:09,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:09,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:09,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:09,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:09,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:09,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:09,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:09,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:09,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/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 [2020-11-28 03:08:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:09,447 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:08:10,479 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-28 03:08:10,479 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-28 03:08:10,491 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:10,492 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:08:10,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:10 BoogieIcfgContainer [2020-11-28 03:08:10,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:10,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:10,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:10,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:10,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:08" (1/3) ... [2020-11-28 03:08:10,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d588b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:10, skipping insertion in model container [2020-11-28 03:08:10,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (2/3) ... [2020-11-28 03:08:10,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d588b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:10, skipping insertion in model container [2020-11-28 03:08:10,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:10" (3/3) ... [2020-11-28 03:08:10,505 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2020-11-28 03:08:10,519 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:10,525 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:08:10,541 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:08:10,573 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:10,573 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:10,573 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:10,573 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:10,573 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:10,574 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:10,574 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:10,574 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-11-28 03:08:10,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:08:10,603 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:10,604 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] [2020-11-28 03:08:10,605 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:10,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:10,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1457700990, now seen corresponding path program 1 times [2020-11-28 03:08:10,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:10,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380980685] [2020-11-28 03:08:10,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:10,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:10,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380980685] [2020-11-28 03:08:10,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:10,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:10,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902593758] [2020-11-28 03:08:10,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:10,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:10,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:10,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:10,957 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2020-11-28 03:08:11,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:11,278 INFO L93 Difference]: Finished difference Result 251 states and 426 transitions. [2020-11-28 03:08:11,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:11,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:08:11,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:11,294 INFO L225 Difference]: With dead ends: 251 [2020-11-28 03:08:11,294 INFO L226 Difference]: Without dead ends: 114 [2020-11-28 03:08:11,298 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 [2020-11-28 03:08:11,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-28 03:08:11,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-11-28 03:08:11,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-28 03:08:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 171 transitions. [2020-11-28 03:08:11,354 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 171 transitions. Word has length 24 [2020-11-28 03:08:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:11,355 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 171 transitions. [2020-11-28 03:08:11,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions. [2020-11-28 03:08:11,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-28 03:08:11,358 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:11,358 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] [2020-11-28 03:08:11,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:08:11,358 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:11,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:11,360 INFO L82 PathProgramCache]: Analyzing trace with hash 561711387, now seen corresponding path program 1 times [2020-11-28 03:08:11,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:11,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312647922] [2020-11-28 03:08:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:11,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312647922] [2020-11-28 03:08:11,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:11,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:11,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080900678] [2020-11-28 03:08:11,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:11,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:11,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:11,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:11,459 INFO L87 Difference]: Start difference. First operand 114 states and 171 transitions. Second operand 3 states. [2020-11-28 03:08:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:11,715 INFO L93 Difference]: Finished difference Result 236 states and 358 transitions. [2020-11-28 03:08:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:11,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-28 03:08:11,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:11,718 INFO L225 Difference]: With dead ends: 236 [2020-11-28 03:08:11,718 INFO L226 Difference]: Without dead ends: 132 [2020-11-28 03:08:11,719 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 [2020-11-28 03:08:11,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-28 03:08:11,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2020-11-28 03:08:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-28 03:08:11,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 191 transitions. [2020-11-28 03:08:11,744 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 191 transitions. Word has length 37 [2020-11-28 03:08:11,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:11,745 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 191 transitions. [2020-11-28 03:08:11,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 191 transitions. [2020-11-28 03:08:11,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:08:11,754 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:11,755 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] [2020-11-28 03:08:11,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:08:11,757 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:11,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:11,758 INFO L82 PathProgramCache]: Analyzing trace with hash 356447844, now seen corresponding path program 1 times [2020-11-28 03:08:11,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:11,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247162446] [2020-11-28 03:08:11,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:08:11,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247162446] [2020-11-28 03:08:11,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:11,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:11,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077976847] [2020-11-28 03:08:11,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:11,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:11,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:11,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:11,886 INFO L87 Difference]: Start difference. First operand 129 states and 191 transitions. Second operand 3 states. [2020-11-28 03:08:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:12,099 INFO L93 Difference]: Finished difference Result 269 states and 404 transitions. [2020-11-28 03:08:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:12,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-28 03:08:12,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:12,103 INFO L225 Difference]: With dead ends: 269 [2020-11-28 03:08:12,103 INFO L226 Difference]: Without dead ends: 150 [2020-11-28 03:08:12,104 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 [2020-11-28 03:08:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-11-28 03:08:12,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2020-11-28 03:08:12,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-28 03:08:12,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 213 transitions. [2020-11-28 03:08:12,120 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 213 transitions. Word has length 51 [2020-11-28 03:08:12,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:12,121 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 213 transitions. [2020-11-28 03:08:12,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:12,121 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 213 transitions. [2020-11-28 03:08:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:08:12,123 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:12,124 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] [2020-11-28 03:08:12,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:08:12,124 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:12,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:12,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1231511209, now seen corresponding path program 1 times [2020-11-28 03:08:12,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:12,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070410892] [2020-11-28 03:08:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:08:12,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070410892] [2020-11-28 03:08:12,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:12,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:12,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880643652] [2020-11-28 03:08:12,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:12,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:12,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:12,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:12,280 INFO L87 Difference]: Start difference. First operand 146 states and 213 transitions. Second operand 3 states. [2020-11-28 03:08:12,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:12,655 INFO L93 Difference]: Finished difference Result 333 states and 501 transitions. [2020-11-28 03:08:12,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:12,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-28 03:08:12,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:12,658 INFO L225 Difference]: With dead ends: 333 [2020-11-28 03:08:12,658 INFO L226 Difference]: Without dead ends: 196 [2020-11-28 03:08:12,660 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 [2020-11-28 03:08:12,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-11-28 03:08:12,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 187. [2020-11-28 03:08:12,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-11-28 03:08:12,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 263 transitions. [2020-11-28 03:08:12,676 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 263 transitions. Word has length 68 [2020-11-28 03:08:12,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:12,677 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 263 transitions. [2020-11-28 03:08:12,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 263 transitions. [2020-11-28 03:08:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-28 03:08:12,679 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:12,680 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] [2020-11-28 03:08:12,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:08:12,680 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:12,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:12,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1258017753, now seen corresponding path program 1 times [2020-11-28 03:08:12,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:12,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370629700] [2020-11-28 03:08:12,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:08:12,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370629700] [2020-11-28 03:08:12,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:12,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:12,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399428761] [2020-11-28 03:08:12,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:12,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:12,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:12,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:12,786 INFO L87 Difference]: Start difference. First operand 187 states and 263 transitions. Second operand 3 states. [2020-11-28 03:08:13,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:13,036 INFO L93 Difference]: Finished difference Result 387 states and 552 transitions. [2020-11-28 03:08:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:13,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-28 03:08:13,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:13,038 INFO L225 Difference]: With dead ends: 387 [2020-11-28 03:08:13,039 INFO L226 Difference]: Without dead ends: 210 [2020-11-28 03:08:13,040 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 [2020-11-28 03:08:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-11-28 03:08:13,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 206. [2020-11-28 03:08:13,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-28 03:08:13,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 287 transitions. [2020-11-28 03:08:13,066 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 287 transitions. Word has length 68 [2020-11-28 03:08:13,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:13,067 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 287 transitions. [2020-11-28 03:08:13,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 287 transitions. [2020-11-28 03:08:13,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-11-28 03:08:13,080 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:13,080 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] [2020-11-28 03:08:13,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:08:13,081 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:13,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:13,082 INFO L82 PathProgramCache]: Analyzing trace with hash -901961809, now seen corresponding path program 1 times [2020-11-28 03:08:13,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:13,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423421483] [2020-11-28 03:08:13,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-28 03:08:13,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423421483] [2020-11-28 03:08:13,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780933835] [2020-11-28 03:08:13,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,212 INFO L87 Difference]: Start difference. First operand 206 states and 287 transitions. Second operand 3 states. [2020-11-28 03:08:13,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:13,478 INFO L93 Difference]: Finished difference Result 426 states and 602 transitions. [2020-11-28 03:08:13,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:13,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-11-28 03:08:13,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:13,481 INFO L225 Difference]: With dead ends: 426 [2020-11-28 03:08:13,481 INFO L226 Difference]: Without dead ends: 230 [2020-11-28 03:08:13,482 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 [2020-11-28 03:08:13,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-11-28 03:08:13,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2020-11-28 03:08:13,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-11-28 03:08:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 313 transitions. [2020-11-28 03:08:13,509 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 313 transitions. Word has length 84 [2020-11-28 03:08:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:13,509 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 313 transitions. [2020-11-28 03:08:13,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 313 transitions. [2020-11-28 03:08:13,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-28 03:08:13,513 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:13,513 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] [2020-11-28 03:08:13,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:08:13,514 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:13,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:13,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1810291289, now seen corresponding path program 1 times [2020-11-28 03:08:13,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:13,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718567040] [2020-11-28 03:08:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,657 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-28 03:08:13,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718567040] [2020-11-28 03:08:13,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441989477] [2020-11-28 03:08:13,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,661 INFO L87 Difference]: Start difference. First operand 227 states and 313 transitions. Second operand 3 states. [2020-11-28 03:08:13,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:13,718 INFO L93 Difference]: Finished difference Result 658 states and 909 transitions. [2020-11-28 03:08:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:13,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-28 03:08:13,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:13,723 INFO L225 Difference]: With dead ends: 658 [2020-11-28 03:08:13,723 INFO L226 Difference]: Without dead ends: 441 [2020-11-28 03:08:13,724 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 [2020-11-28 03:08:13,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-11-28 03:08:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2020-11-28 03:08:13,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-11-28 03:08:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 604 transitions. [2020-11-28 03:08:13,746 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 604 transitions. Word has length 104 [2020-11-28 03:08:13,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:13,746 INFO L481 AbstractCegarLoop]: Abstraction has 441 states and 604 transitions. [2020-11-28 03:08:13,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:13,747 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 604 transitions. [2020-11-28 03:08:13,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-28 03:08:13,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:13,750 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] [2020-11-28 03:08:13,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:08:13,751 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:13,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:13,752 INFO L82 PathProgramCache]: Analyzing trace with hash 151283369, now seen corresponding path program 1 times [2020-11-28 03:08:13,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:13,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668594863] [2020-11-28 03:08:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-28 03:08:13,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668594863] [2020-11-28 03:08:13,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275528297] [2020-11-28 03:08:13,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,825 INFO L87 Difference]: Start difference. First operand 441 states and 604 transitions. Second operand 3 states. [2020-11-28 03:08:13,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:13,862 INFO L93 Difference]: Finished difference Result 893 states and 1222 transitions. [2020-11-28 03:08:13,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:13,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-28 03:08:13,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:13,867 INFO L225 Difference]: With dead ends: 893 [2020-11-28 03:08:13,867 INFO L226 Difference]: Without dead ends: 462 [2020-11-28 03:08:13,869 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 [2020-11-28 03:08:13,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-11-28 03:08:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2020-11-28 03:08:13,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-11-28 03:08:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 631 transitions. [2020-11-28 03:08:13,887 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 631 transitions. Word has length 104 [2020-11-28 03:08:13,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:13,888 INFO L481 AbstractCegarLoop]: Abstraction has 462 states and 631 transitions. [2020-11-28 03:08:13,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:13,888 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 631 transitions. [2020-11-28 03:08:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-28 03:08:13,890 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:13,891 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] [2020-11-28 03:08:13,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:08:13,891 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:13,892 INFO L82 PathProgramCache]: Analyzing trace with hash 178348971, now seen corresponding path program 1 times [2020-11-28 03:08:13,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:13,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748094287] [2020-11-28 03:08:13,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:13,955 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-11-28 03:08:13,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748094287] [2020-11-28 03:08:13,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:13,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:13,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854549721] [2020-11-28 03:08:13,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:13,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:13,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:13,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:13,964 INFO L87 Difference]: Start difference. First operand 462 states and 631 transitions. Second operand 3 states. [2020-11-28 03:08:14,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:14,003 INFO L93 Difference]: Finished difference Result 941 states and 1283 transitions. [2020-11-28 03:08:14,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:14,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-28 03:08:14,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:14,008 INFO L225 Difference]: With dead ends: 941 [2020-11-28 03:08:14,008 INFO L226 Difference]: Without dead ends: 489 [2020-11-28 03:08:14,010 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 [2020-11-28 03:08:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-11-28 03:08:14,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2020-11-28 03:08:14,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-11-28 03:08:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 665 transitions. [2020-11-28 03:08:14,029 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 665 transitions. Word has length 104 [2020-11-28 03:08:14,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:14,029 INFO L481 AbstractCegarLoop]: Abstraction has 489 states and 665 transitions. [2020-11-28 03:08:14,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 665 transitions. [2020-11-28 03:08:14,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-28 03:08:14,031 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:14,032 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] [2020-11-28 03:08:14,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:08:14,032 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:14,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:14,034 INFO L82 PathProgramCache]: Analyzing trace with hash -492994255, now seen corresponding path program 1 times [2020-11-28 03:08:14,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:14,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981897779] [2020-11-28 03:08:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-28 03:08:14,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981897779] [2020-11-28 03:08:14,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:14,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:14,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817872574] [2020-11-28 03:08:14,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:14,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:14,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:14,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:14,141 INFO L87 Difference]: Start difference. First operand 489 states and 665 transitions. Second operand 3 states. [2020-11-28 03:08:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:14,212 INFO L93 Difference]: Finished difference Result 706 states and 964 transitions. [2020-11-28 03:08:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:14,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-28 03:08:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:14,220 INFO L225 Difference]: With dead ends: 706 [2020-11-28 03:08:14,220 INFO L226 Difference]: Without dead ends: 704 [2020-11-28 03:08:14,221 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 [2020-11-28 03:08:14,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-11-28 03:08:14,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2020-11-28 03:08:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-11-28 03:08:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 962 transitions. [2020-11-28 03:08:14,250 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 962 transitions. Word has length 106 [2020-11-28 03:08:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:14,250 INFO L481 AbstractCegarLoop]: Abstraction has 704 states and 962 transitions. [2020-11-28 03:08:14,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 962 transitions. [2020-11-28 03:08:14,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-11-28 03:08:14,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:14,254 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1] [2020-11-28 03:08:14,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:08:14,254 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:14,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:14,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1913560025, now seen corresponding path program 1 times [2020-11-28 03:08:14,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:14,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518916024] [2020-11-28 03:08:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:14,335 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-28 03:08:14,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518916024] [2020-11-28 03:08:14,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:14,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:14,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616972187] [2020-11-28 03:08:14,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:14,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:14,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:14,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:14,339 INFO L87 Difference]: Start difference. First operand 704 states and 962 transitions. Second operand 3 states. [2020-11-28 03:08:14,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:14,574 INFO L93 Difference]: Finished difference Result 1451 states and 2013 transitions. [2020-11-28 03:08:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:14,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-11-28 03:08:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:14,581 INFO L225 Difference]: With dead ends: 1451 [2020-11-28 03:08:14,581 INFO L226 Difference]: Without dead ends: 784 [2020-11-28 03:08:14,583 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 [2020-11-28 03:08:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-11-28 03:08:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 773. [2020-11-28 03:08:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2020-11-28 03:08:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1046 transitions. [2020-11-28 03:08:14,611 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1046 transitions. Word has length 131 [2020-11-28 03:08:14,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:14,612 INFO L481 AbstractCegarLoop]: Abstraction has 773 states and 1046 transitions. [2020-11-28 03:08:14,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1046 transitions. [2020-11-28 03:08:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-11-28 03:08:14,615 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:14,616 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1] [2020-11-28 03:08:14,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:08:14,616 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:14,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:14,617 INFO L82 PathProgramCache]: Analyzing trace with hash 296450083, now seen corresponding path program 1 times [2020-11-28 03:08:14,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:14,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538699191] [2020-11-28 03:08:14,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-11-28 03:08:14,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538699191] [2020-11-28 03:08:14,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:14,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:14,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267670429] [2020-11-28 03:08:14,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:14,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:14,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:14,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:14,723 INFO L87 Difference]: Start difference. First operand 773 states and 1046 transitions. Second operand 3 states. [2020-11-28 03:08:15,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:15,013 INFO L93 Difference]: Finished difference Result 1662 states and 2311 transitions. [2020-11-28 03:08:15,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:15,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-11-28 03:08:15,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:15,022 INFO L225 Difference]: With dead ends: 1662 [2020-11-28 03:08:15,022 INFO L226 Difference]: Without dead ends: 923 [2020-11-28 03:08:15,024 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 [2020-11-28 03:08:15,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-11-28 03:08:15,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 890. [2020-11-28 03:08:15,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-11-28 03:08:15,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1223 transitions. [2020-11-28 03:08:15,079 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1223 transitions. Word has length 152 [2020-11-28 03:08:15,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:15,080 INFO L481 AbstractCegarLoop]: Abstraction has 890 states and 1223 transitions. [2020-11-28 03:08:15,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:15,080 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1223 transitions. [2020-11-28 03:08:15,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-11-28 03:08:15,084 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:15,085 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:15,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:08:15,085 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:15,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:15,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2080513012, now seen corresponding path program 1 times [2020-11-28 03:08:15,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:15,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391317588] [2020-11-28 03:08:15,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:15,196 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-11-28 03:08:15,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391317588] [2020-11-28 03:08:15,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:15,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:15,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145571738] [2020-11-28 03:08:15,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:15,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:15,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:15,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:15,199 INFO L87 Difference]: Start difference. First operand 890 states and 1223 transitions. Second operand 3 states. [2020-11-28 03:08:15,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:15,434 INFO L93 Difference]: Finished difference Result 1833 states and 2515 transitions. [2020-11-28 03:08:15,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:15,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-11-28 03:08:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:15,442 INFO L225 Difference]: With dead ends: 1833 [2020-11-28 03:08:15,443 INFO L226 Difference]: Without dead ends: 980 [2020-11-28 03:08:15,444 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 [2020-11-28 03:08:15,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-11-28 03:08:15,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 974. [2020-11-28 03:08:15,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 974 states. [2020-11-28 03:08:15,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1322 transitions. [2020-11-28 03:08:15,485 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1322 transitions. Word has length 188 [2020-11-28 03:08:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:15,486 INFO L481 AbstractCegarLoop]: Abstraction has 974 states and 1322 transitions. [2020-11-28 03:08:15,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1322 transitions. [2020-11-28 03:08:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-11-28 03:08:15,491 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:15,492 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:15,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:08:15,492 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:15,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:15,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1653754506, now seen corresponding path program 1 times [2020-11-28 03:08:15,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:15,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13620056] [2020-11-28 03:08:15,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-11-28 03:08:15,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13620056] [2020-11-28 03:08:15,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:15,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:15,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971095163] [2020-11-28 03:08:15,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:15,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:15,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:15,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:15,627 INFO L87 Difference]: Start difference. First operand 974 states and 1322 transitions. Second operand 3 states. [2020-11-28 03:08:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:15,867 INFO L93 Difference]: Finished difference Result 2013 states and 2740 transitions. [2020-11-28 03:08:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:15,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-11-28 03:08:15,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:15,876 INFO L225 Difference]: With dead ends: 2013 [2020-11-28 03:08:15,877 INFO L226 Difference]: Without dead ends: 1076 [2020-11-28 03:08:15,879 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 [2020-11-28 03:08:15,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-11-28 03:08:15,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1067. [2020-11-28 03:08:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2020-11-28 03:08:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1430 transitions. [2020-11-28 03:08:15,936 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1430 transitions. Word has length 188 [2020-11-28 03:08:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:15,937 INFO L481 AbstractCegarLoop]: Abstraction has 1067 states and 1430 transitions. [2020-11-28 03:08:15,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1430 transitions. [2020-11-28 03:08:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-28 03:08:15,942 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:15,943 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 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] [2020-11-28 03:08:15,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:08:15,943 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:15,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:15,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1229348372, now seen corresponding path program 1 times [2020-11-28 03:08:15,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:15,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477930176] [2020-11-28 03:08:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:16,061 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-11-28 03:08:16,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477930176] [2020-11-28 03:08:16,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:16,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:16,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593946676] [2020-11-28 03:08:16,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:16,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:16,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:16,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:16,064 INFO L87 Difference]: Start difference. First operand 1067 states and 1430 transitions. Second operand 3 states. [2020-11-28 03:08:16,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:16,121 INFO L93 Difference]: Finished difference Result 3124 states and 4191 transitions. [2020-11-28 03:08:16,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:16,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-11-28 03:08:16,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:16,138 INFO L225 Difference]: With dead ends: 3124 [2020-11-28 03:08:16,138 INFO L226 Difference]: Without dead ends: 2094 [2020-11-28 03:08:16,142 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 [2020-11-28 03:08:16,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2020-11-28 03:08:16,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2092. [2020-11-28 03:08:16,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-11-28 03:08:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2805 transitions. [2020-11-28 03:08:16,255 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2805 transitions. Word has length 218 [2020-11-28 03:08:16,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:16,256 INFO L481 AbstractCegarLoop]: Abstraction has 2092 states and 2805 transitions. [2020-11-28 03:08:16,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:16,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2805 transitions. [2020-11-28 03:08:16,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-28 03:08:16,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:16,264 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 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] [2020-11-28 03:08:16,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 03:08:16,264 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:16,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:16,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1790048150, now seen corresponding path program 1 times [2020-11-28 03:08:16,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:16,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118426485] [2020-11-28 03:08:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-11-28 03:08:16,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118426485] [2020-11-28 03:08:16,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:16,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:16,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989245376] [2020-11-28 03:08:16,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:16,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:16,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:16,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:16,385 INFO L87 Difference]: Start difference. First operand 2092 states and 2805 transitions. Second operand 3 states. [2020-11-28 03:08:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:16,680 INFO L93 Difference]: Finished difference Result 4372 states and 5889 transitions. [2020-11-28 03:08:16,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:16,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-11-28 03:08:16,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:16,697 INFO L225 Difference]: With dead ends: 4372 [2020-11-28 03:08:16,697 INFO L226 Difference]: Without dead ends: 2317 [2020-11-28 03:08:16,701 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 [2020-11-28 03:08:16,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2020-11-28 03:08:16,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2305. [2020-11-28 03:08:16,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-11-28 03:08:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3048 transitions. [2020-11-28 03:08:16,792 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3048 transitions. Word has length 218 [2020-11-28 03:08:16,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:16,792 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 3048 transitions. [2020-11-28 03:08:16,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:16,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3048 transitions. [2020-11-28 03:08:16,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-11-28 03:08:16,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:16,801 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:16,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:08:16,802 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:16,802 INFO L82 PathProgramCache]: Analyzing trace with hash 678419774, now seen corresponding path program 1 times [2020-11-28 03:08:16,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:16,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883520837] [2020-11-28 03:08:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:16,976 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2020-11-28 03:08:16,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883520837] [2020-11-28 03:08:16,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:16,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:16,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436754756] [2020-11-28 03:08:16,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:16,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:16,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:16,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:16,980 INFO L87 Difference]: Start difference. First operand 2305 states and 3048 transitions. Second operand 3 states. [2020-11-28 03:08:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:17,289 INFO L93 Difference]: Finished difference Result 4684 states and 6204 transitions. [2020-11-28 03:08:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:17,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2020-11-28 03:08:17,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:17,307 INFO L225 Difference]: With dead ends: 4684 [2020-11-28 03:08:17,308 INFO L226 Difference]: Without dead ends: 2416 [2020-11-28 03:08:17,312 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 [2020-11-28 03:08:17,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2020-11-28 03:08:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2404. [2020-11-28 03:08:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2404 states. [2020-11-28 03:08:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3162 transitions. [2020-11-28 03:08:17,409 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3162 transitions. Word has length 242 [2020-11-28 03:08:17,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:17,410 INFO L481 AbstractCegarLoop]: Abstraction has 2404 states and 3162 transitions. [2020-11-28 03:08:17,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:17,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3162 transitions. [2020-11-28 03:08:17,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-11-28 03:08:17,419 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:17,419 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:17,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 03:08:17,420 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:17,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:17,421 INFO L82 PathProgramCache]: Analyzing trace with hash -101941725, now seen corresponding path program 1 times [2020-11-28 03:08:17,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:17,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206291139] [2020-11-28 03:08:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:17,602 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-28 03:08:17,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206291139] [2020-11-28 03:08:17,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:17,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:17,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912473778] [2020-11-28 03:08:17,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:17,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:17,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:17,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:17,607 INFO L87 Difference]: Start difference. First operand 2404 states and 3162 transitions. Second operand 3 states. [2020-11-28 03:08:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:17,949 INFO L93 Difference]: Finished difference Result 5071 states and 6804 transitions. [2020-11-28 03:08:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:17,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-11-28 03:08:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:17,970 INFO L225 Difference]: With dead ends: 5071 [2020-11-28 03:08:17,970 INFO L226 Difference]: Without dead ends: 2704 [2020-11-28 03:08:17,974 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 [2020-11-28 03:08:17,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2020-11-28 03:08:18,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2644. [2020-11-28 03:08:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2644 states. [2020-11-28 03:08:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3444 transitions. [2020-11-28 03:08:18,082 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3444 transitions. Word has length 253 [2020-11-28 03:08:18,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:18,083 INFO L481 AbstractCegarLoop]: Abstraction has 2644 states and 3444 transitions. [2020-11-28 03:08:18,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:18,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3444 transitions. [2020-11-28 03:08:18,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-11-28 03:08:18,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:18,097 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:18,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 03:08:18,097 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:18,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:18,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1277617296, now seen corresponding path program 1 times [2020-11-28 03:08:18,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:18,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489362175] [2020-11-28 03:08:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-28 03:08:18,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489362175] [2020-11-28 03:08:18,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524558163] [2020-11-28 03:08:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/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 [2020-11-28 03:08:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:18,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:08:18,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-28 03:08:18,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:08:18,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:08:18,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122802489] [2020-11-28 03:08:18,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:18,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:18,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:18,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:18,785 INFO L87 Difference]: Start difference. First operand 2644 states and 3444 transitions. Second operand 4 states. [2020-11-28 03:08:19,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:19,761 INFO L93 Difference]: Finished difference Result 8230 states and 10854 transitions. [2020-11-28 03:08:19,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:08:19,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2020-11-28 03:08:19,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:19,803 INFO L225 Difference]: With dead ends: 8230 [2020-11-28 03:08:19,803 INFO L226 Difference]: Without dead ends: 5617 [2020-11-28 03:08:19,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:19,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5617 states. [2020-11-28 03:08:20,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5617 to 5225. [2020-11-28 03:08:20,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5225 states. [2020-11-28 03:08:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 6803 transitions. [2020-11-28 03:08:20,033 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 6803 transitions. Word has length 292 [2020-11-28 03:08:20,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:20,034 INFO L481 AbstractCegarLoop]: Abstraction has 5225 states and 6803 transitions. [2020-11-28 03:08:20,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:20,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 6803 transitions. [2020-11-28 03:08:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-11-28 03:08:20,051 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:20,052 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:20,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:08:20,266 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:20,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:20,266 INFO L82 PathProgramCache]: Analyzing trace with hash -909348798, now seen corresponding path program 1 times [2020-11-28 03:08:20,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:20,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302654433] [2020-11-28 03:08:20,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2020-11-28 03:08:20,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302654433] [2020-11-28 03:08:20,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:20,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:20,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332868629] [2020-11-28 03:08:20,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:20,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:20,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:20,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:20,590 INFO L87 Difference]: Start difference. First operand 5225 states and 6803 transitions. Second operand 3 states. [2020-11-28 03:08:20,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:20,747 INFO L93 Difference]: Finished difference Result 12630 states and 16480 transitions. [2020-11-28 03:08:20,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:20,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2020-11-28 03:08:20,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:20,813 INFO L225 Difference]: With dead ends: 12630 [2020-11-28 03:08:20,813 INFO L226 Difference]: Without dead ends: 7442 [2020-11-28 03:08:20,824 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 [2020-11-28 03:08:20,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7442 states. [2020-11-28 03:08:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7442 to 7440. [2020-11-28 03:08:21,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7440 states. [2020-11-28 03:08:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 9694 transitions. [2020-11-28 03:08:21,054 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 9694 transitions. Word has length 293 [2020-11-28 03:08:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:21,055 INFO L481 AbstractCegarLoop]: Abstraction has 7440 states and 9694 transitions. [2020-11-28 03:08:21,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 9694 transitions. [2020-11-28 03:08:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-11-28 03:08:21,072 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:21,073 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:21,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-28 03:08:21,073 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:21,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:21,074 INFO L82 PathProgramCache]: Analyzing trace with hash 967762485, now seen corresponding path program 1 times [2020-11-28 03:08:21,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:21,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553157858] [2020-11-28 03:08:21,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-11-28 03:08:21,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553157858] [2020-11-28 03:08:21,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:21,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:21,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577461620] [2020-11-28 03:08:21,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:21,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:21,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:21,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:21,318 INFO L87 Difference]: Start difference. First operand 7440 states and 9694 transitions. Second operand 3 states. [2020-11-28 03:08:21,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:21,685 INFO L93 Difference]: Finished difference Result 14837 states and 19310 transitions. [2020-11-28 03:08:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:21,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 294 [2020-11-28 03:08:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:21,705 INFO L225 Difference]: With dead ends: 14837 [2020-11-28 03:08:21,705 INFO L226 Difference]: Without dead ends: 7434 [2020-11-28 03:08:21,716 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 [2020-11-28 03:08:21,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2020-11-28 03:08:21,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 6417. [2020-11-28 03:08:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6417 states. [2020-11-28 03:08:21,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 8241 transitions. [2020-11-28 03:08:21,936 INFO L78 Accepts]: Start accepts. Automaton has 6417 states and 8241 transitions. Word has length 294 [2020-11-28 03:08:21,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:21,937 INFO L481 AbstractCegarLoop]: Abstraction has 6417 states and 8241 transitions. [2020-11-28 03:08:21,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 6417 states and 8241 transitions. [2020-11-28 03:08:21,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-11-28 03:08:21,954 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:21,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:21,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-28 03:08:21,955 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:21,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:21,956 INFO L82 PathProgramCache]: Analyzing trace with hash 980531743, now seen corresponding path program 1 times [2020-11-28 03:08:21,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:21,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30637766] [2020-11-28 03:08:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1419 backedges. 730 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:08:22,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30637766] [2020-11-28 03:08:22,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:22,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:22,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627287844] [2020-11-28 03:08:22,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:22,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:22,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:22,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:22,181 INFO L87 Difference]: Start difference. First operand 6417 states and 8241 transitions. Second operand 3 states. [2020-11-28 03:08:22,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:22,608 INFO L93 Difference]: Finished difference Result 13943 states and 18132 transitions. [2020-11-28 03:08:22,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:22,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 334 [2020-11-28 03:08:22,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:22,629 INFO L225 Difference]: With dead ends: 13943 [2020-11-28 03:08:22,629 INFO L226 Difference]: Without dead ends: 7563 [2020-11-28 03:08:22,640 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 [2020-11-28 03:08:22,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2020-11-28 03:08:22,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 6759. [2020-11-28 03:08:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6759 states. [2020-11-28 03:08:22,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6759 states to 6759 states and 8727 transitions. [2020-11-28 03:08:22,856 INFO L78 Accepts]: Start accepts. Automaton has 6759 states and 8727 transitions. Word has length 334 [2020-11-28 03:08:22,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:22,857 INFO L481 AbstractCegarLoop]: Abstraction has 6759 states and 8727 transitions. [2020-11-28 03:08:22,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:22,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6759 states and 8727 transitions. [2020-11-28 03:08:22,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-11-28 03:08:22,875 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:22,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:22,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-28 03:08:22,876 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:22,877 INFO L82 PathProgramCache]: Analyzing trace with hash 650041975, now seen corresponding path program 1 times [2020-11-28 03:08:22,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:22,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988321561] [2020-11-28 03:08:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 954 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:08:23,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988321561] [2020-11-28 03:08:23,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835010910] [2020-11-28 03:08:23,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/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 [2020-11-28 03:08:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:23,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:08:23,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2020-11-28 03:08:23,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:08:23,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-28 03:08:23,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836192124] [2020-11-28 03:08:23,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:23,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:23,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:23,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:23,845 INFO L87 Difference]: Start difference. First operand 6759 states and 8727 transitions. Second operand 3 states. [2020-11-28 03:08:23,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:23,988 INFO L93 Difference]: Finished difference Result 15418 states and 19861 transitions. [2020-11-28 03:08:23,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:23,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 372 [2020-11-28 03:08:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:24,010 INFO L225 Difference]: With dead ends: 15418 [2020-11-28 03:08:24,010 INFO L226 Difference]: Without dead ends: 8696 [2020-11-28 03:08:24,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:24,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2020-11-28 03:08:24,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 8696. [2020-11-28 03:08:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8696 states. [2020-11-28 03:08:24,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8696 states to 8696 states and 11164 transitions. [2020-11-28 03:08:24,309 INFO L78 Accepts]: Start accepts. Automaton has 8696 states and 11164 transitions. Word has length 372 [2020-11-28 03:08:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:24,310 INFO L481 AbstractCegarLoop]: Abstraction has 8696 states and 11164 transitions. [2020-11-28 03:08:24,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 8696 states and 11164 transitions. [2020-11-28 03:08:24,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-11-28 03:08:24,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:24,330 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, 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] [2020-11-28 03:08:24,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-11-28 03:08:24,558 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:24,558 INFO L82 PathProgramCache]: Analyzing trace with hash -590181313, now seen corresponding path program 1 times [2020-11-28 03:08:24,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:24,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066841116] [2020-11-28 03:08:24,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:08:24,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066841116] [2020-11-28 03:08:24,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266879977] [2020-11-28 03:08:24,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/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 [2020-11-28 03:08:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:25,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:08:25,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:25,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-28 03:08:25,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:08:25,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:08:25,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491569805] [2020-11-28 03:08:25,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:25,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:25,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:25,232 INFO L87 Difference]: Start difference. First operand 8696 states and 11164 transitions. Second operand 4 states. [2020-11-28 03:08:25,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:25,881 INFO L93 Difference]: Finished difference Result 18915 states and 24222 transitions. [2020-11-28 03:08:25,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:08:25,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-11-28 03:08:25,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:25,906 INFO L225 Difference]: With dead ends: 18915 [2020-11-28 03:08:25,906 INFO L226 Difference]: Without dead ends: 10260 [2020-11-28 03:08:25,920 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 [2020-11-28 03:08:25,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10260 states. [2020-11-28 03:08:26,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10260 to 9228. [2020-11-28 03:08:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9228 states. [2020-11-28 03:08:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9228 states to 9228 states and 11723 transitions. [2020-11-28 03:08:26,206 INFO L78 Accepts]: Start accepts. Automaton has 9228 states and 11723 transitions. Word has length 374 [2020-11-28 03:08:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:26,207 INFO L481 AbstractCegarLoop]: Abstraction has 9228 states and 11723 transitions. [2020-11-28 03:08:26,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 9228 states and 11723 transitions. [2020-11-28 03:08:26,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-11-28 03:08:26,237 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:26,238 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, 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] [2020-11-28 03:08:26,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-11-28 03:08:26,459 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:26,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:26,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1273645298, now seen corresponding path program 1 times [2020-11-28 03:08:26,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:26,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158992242] [2020-11-28 03:08:26,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1971 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-11-28 03:08:26,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158992242] [2020-11-28 03:08:26,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:26,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:26,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280929349] [2020-11-28 03:08:26,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:26,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:26,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:26,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:26,691 INFO L87 Difference]: Start difference. First operand 9228 states and 11723 transitions. Second operand 3 states. [2020-11-28 03:08:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:27,087 INFO L93 Difference]: Finished difference Result 17032 states and 21420 transitions. [2020-11-28 03:08:27,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:27,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-11-28 03:08:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:27,098 INFO L225 Difference]: With dead ends: 17032 [2020-11-28 03:08:27,098 INFO L226 Difference]: Without dead ends: 3795 [2020-11-28 03:08:27,116 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 [2020-11-28 03:08:27,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2020-11-28 03:08:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3567. [2020-11-28 03:08:27,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-11-28 03:08:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4431 transitions. [2020-11-28 03:08:27,219 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4431 transitions. Word has length 413 [2020-11-28 03:08:27,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:27,219 INFO L481 AbstractCegarLoop]: Abstraction has 3567 states and 4431 transitions. [2020-11-28 03:08:27,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:27,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4431 transitions. [2020-11-28 03:08:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-11-28 03:08:27,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:27,235 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:27,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-28 03:08:27,235 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:27,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:27,236 INFO L82 PathProgramCache]: Analyzing trace with hash 381067605, now seen corresponding path program 1 times [2020-11-28 03:08:27,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:27,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866617790] [2020-11-28 03:08:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2020-11-28 03:08:27,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866617790] [2020-11-28 03:08:27,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293055573] [2020-11-28 03:08:27,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/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 [2020-11-28 03:08:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:27,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:08:27,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:28,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2020-11-28 03:08:28,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:08:28,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-28 03:08:28,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285416676] [2020-11-28 03:08:28,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:28,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:28,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:28,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:28,023 INFO L87 Difference]: Start difference. First operand 3567 states and 4431 transitions. Second operand 4 states. [2020-11-28 03:08:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:28,305 INFO L93 Difference]: Finished difference Result 3781 states and 4699 transitions. [2020-11-28 03:08:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:08:28,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 442 [2020-11-28 03:08:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:28,308 INFO L225 Difference]: With dead ends: 3781 [2020-11-28 03:08:28,308 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:08:28,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:28,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:08:28,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:08:28,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:08:28,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:08:28,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 442 [2020-11-28 03:08:28,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:28,313 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:08:28,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:28,313 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:08:28,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:08:28,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:08:28,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:08:29,050 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 89 [2020-11-28 03:08:29,363 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 18 [2020-11-28 03:08:30,130 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-28 03:08:30,248 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2020-11-28 03:08:30,602 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2020-11-28 03:08:31,042 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2020-11-28 03:08:31,152 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2020-11-28 03:08:31,323 INFO L270 CegarLoopResult]: At program point L168(lines 164 494) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-11-28 03:08:31,323 INFO L270 CegarLoopResult]: At program point L102(lines 101 515) the Hoare annotation is: (let ((.cse0 (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse0 .cse1))) [2020-11-28 03:08:31,324 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:08:31,324 INFO L274 CegarLoopResult]: For program point L400(lines 400 402) no Hoare annotation was computed. [2020-11-28 03:08:31,324 INFO L274 CegarLoopResult]: For program point L367(lines 367 369) no Hoare annotation was computed. [2020-11-28 03:08:31,324 INFO L274 CegarLoopResult]: For program point L170(lines 170 492) no Hoare annotation was computed. [2020-11-28 03:08:31,324 INFO L274 CegarLoopResult]: For program point L137(lines 137 503) no Hoare annotation was computed. [2020-11-28 03:08:31,324 INFO L274 CegarLoopResult]: For program point L104(lines 104 514) no Hoare annotation was computed. [2020-11-28 03:08:31,324 INFO L274 CegarLoopResult]: For program point L468(lines 468 470) no Hoare annotation was computed. [2020-11-28 03:08:31,324 INFO L274 CegarLoopResult]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2020-11-28 03:08:31,325 INFO L270 CegarLoopResult]: At program point L138(lines 134 504) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-11-28 03:08:31,325 INFO L277 CegarLoopResult]: At program point L535(lines 97 536) the Hoare annotation is: true [2020-11-28 03:08:31,326 INFO L274 CegarLoopResult]: For program point L271(lines 271 275) no Hoare annotation was computed. [2020-11-28 03:08:31,326 INFO L274 CegarLoopResult]: For program point L238(lines 238 241) no Hoare annotation was computed. [2020-11-28 03:08:31,326 INFO L274 CegarLoopResult]: For program point L271-2(lines 271 275) no Hoare annotation was computed. [2020-11-28 03:08:31,327 INFO L274 CegarLoopResult]: For program point L305(lines 305 308) no Hoare annotation was computed. [2020-11-28 03:08:31,328 INFO L270 CegarLoopResult]: At program point L206(lines 104 514) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse0) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2020-11-28 03:08:31,328 INFO L274 CegarLoopResult]: For program point L173(lines 173 491) no Hoare annotation was computed. [2020-11-28 03:08:31,328 INFO L274 CegarLoopResult]: For program point L140(lines 140 502) no Hoare annotation was computed. [2020-11-28 03:08:31,329 INFO L274 CegarLoopResult]: For program point L107(lines 107 513) no Hoare annotation was computed. [2020-11-28 03:08:31,329 INFO L270 CegarLoopResult]: At program point L174(lines 170 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-11-28 03:08:31,331 INFO L274 CegarLoopResult]: For program point L473(lines 473 475) no Hoare annotation was computed. [2020-11-28 03:08:31,331 INFO L274 CegarLoopResult]: For program point L440(lines 440 451) no Hoare annotation was computed. [2020-11-28 03:08:31,331 INFO L274 CegarLoopResult]: For program point L407(lines 407 421) no Hoare annotation was computed. [2020-11-28 03:08:31,331 INFO L274 CegarLoopResult]: For program point L407-1(lines 407 421) no Hoare annotation was computed. [2020-11-28 03:08:31,332 INFO L274 CegarLoopResult]: For program point L440-2(lines 440 451) no Hoare annotation was computed. [2020-11-28 03:08:31,332 INFO L274 CegarLoopResult]: For program point L176(lines 176 490) no Hoare annotation was computed. [2020-11-28 03:08:31,332 INFO L274 CegarLoopResult]: For program point L143(lines 143 501) no Hoare annotation was computed. [2020-11-28 03:08:31,332 INFO L274 CegarLoopResult]: For program point L110(lines 110 512) no Hoare annotation was computed. [2020-11-28 03:08:31,332 INFO L274 CegarLoopResult]: For program point L540(lines 540 542) no Hoare annotation was computed. [2020-11-28 03:08:31,332 INFO L274 CegarLoopResult]: For program point L540-2(lines 540 542) no Hoare annotation was computed. [2020-11-28 03:08:31,333 INFO L270 CegarLoopResult]: At program point L144(lines 140 502) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-11-28 03:08:31,334 INFO L274 CegarLoopResult]: For program point L343(lines 343 345) no Hoare annotation was computed. [2020-11-28 03:08:31,334 INFO L274 CegarLoopResult]: For program point L211(lines 211 213) no Hoare annotation was computed. [2020-11-28 03:08:31,334 INFO L274 CegarLoopResult]: For program point L211-2(lines 211 213) no Hoare annotation was computed. [2020-11-28 03:08:31,334 INFO L274 CegarLoopResult]: For program point L377(lines 377 379) no Hoare annotation was computed. [2020-11-28 03:08:31,334 INFO L274 CegarLoopResult]: For program point L179(lines 179 489) no Hoare annotation was computed. [2020-11-28 03:08:31,335 INFO L274 CegarLoopResult]: For program point L146(lines 146 500) no Hoare annotation was computed. [2020-11-28 03:08:31,335 INFO L274 CegarLoopResult]: For program point L113(lines 113 511) no Hoare annotation was computed. [2020-11-28 03:08:31,335 INFO L274 CegarLoopResult]: For program point L411(lines 411 417) no Hoare annotation was computed. [2020-11-28 03:08:31,335 INFO L270 CegarLoopResult]: At program point L180(lines 176 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)))) [2020-11-28 03:08:31,335 INFO L274 CegarLoopResult]: For program point L445(lines 445 448) no Hoare annotation was computed. [2020-11-28 03:08:31,336 INFO L274 CegarLoopResult]: For program point L313(lines 313 315) no Hoare annotation was computed. [2020-11-28 03:08:31,336 INFO L274 CegarLoopResult]: For program point L280-1(lines 280 290) no Hoare annotation was computed. [2020-11-28 03:08:31,336 INFO L277 CegarLoopResult]: At program point L545(lines 12 547) the Hoare annotation is: true [2020-11-28 03:08:31,337 INFO L270 CegarLoopResult]: At program point L314(lines 76 546) the Hoare annotation is: false [2020-11-28 03:08:31,337 INFO L274 CegarLoopResult]: For program point L182(lines 182 488) no Hoare annotation was computed. [2020-11-28 03:08:31,337 INFO L274 CegarLoopResult]: For program point L149(lines 149 499) no Hoare annotation was computed. [2020-11-28 03:08:31,337 INFO L274 CegarLoopResult]: For program point L116(lines 116 510) no Hoare annotation was computed. [2020-11-28 03:08:31,337 INFO L274 CegarLoopResult]: For program point L216(lines 216 219) no Hoare annotation was computed. [2020-11-28 03:08:31,338 INFO L270 CegarLoopResult]: At program point L150(lines 146 500) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse3 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 .cse1 .cse3 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse3 .cse2))) [2020-11-28 03:08:31,338 INFO L274 CegarLoopResult]: For program point L84(lines 84 90) no Hoare annotation was computed. [2020-11-28 03:08:31,339 INFO L270 CegarLoopResult]: At program point L481(lines 98 534) the Hoare annotation is: (let ((.cse3 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse5 (= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse7 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse11 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (= 4512 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse8 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse5 .cse1) (and .cse6 .cse7 .cse8 .cse2 .cse4 .cse9) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2 .cse9) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse10 .cse1 .cse11) (and .cse1 .cse9) (and .cse1 .cse3 .cse4) (and .cse2 (= 4464 ULTIMATE.start_ssl3_connect_~s__state~0) .cse9) (and .cse5 .cse2 .cse9) (and .cse10 .cse7 .cse2 .cse4 .cse11 .cse9) (and .cse2 (= 4496 ULTIMATE.start_ssl3_connect_~s__state~0) .cse9) (and .cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4480) .cse9) (and .cse0 .cse2 .cse9) (and .cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse8) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)))) [2020-11-28 03:08:31,339 INFO L274 CegarLoopResult]: For program point L316(lines 316 318) no Hoare annotation was computed. [2020-11-28 03:08:31,339 INFO L274 CegarLoopResult]: For program point L250(lines 250 252) no Hoare annotation was computed. [2020-11-28 03:08:31,339 INFO L274 CegarLoopResult]: For program point L250-2(lines 201 480) no Hoare annotation was computed. [2020-11-28 03:08:31,339 INFO L274 CegarLoopResult]: For program point L383(lines 383 387) no Hoare annotation was computed. [2020-11-28 03:08:31,340 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:08:31,340 INFO L274 CegarLoopResult]: For program point L383-2(lines 201 480) no Hoare annotation was computed. [2020-11-28 03:08:31,340 INFO L274 CegarLoopResult]: For program point L284(lines 284 286) no Hoare annotation was computed. [2020-11-28 03:08:31,340 INFO L274 CegarLoopResult]: For program point L284-2(lines 282 290) no Hoare annotation was computed. [2020-11-28 03:08:31,340 INFO L274 CegarLoopResult]: For program point L185(lines 185 487) no Hoare annotation was computed. [2020-11-28 03:08:31,340 INFO L274 CegarLoopResult]: For program point L152(lines 152 498) no Hoare annotation was computed. [2020-11-28 03:08:31,341 INFO L274 CegarLoopResult]: For program point L119(lines 119 509) no Hoare annotation was computed. [2020-11-28 03:08:31,341 INFO L274 CegarLoopResult]: For program point L516(lines 516 532) no Hoare annotation was computed. [2020-11-28 03:08:31,341 INFO L270 CegarLoopResult]: At program point L186(lines 182 488) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)))) [2020-11-28 03:08:31,341 INFO L270 CegarLoopResult]: At program point L120(lines 116 510) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1))) [2020-11-28 03:08:31,342 INFO L274 CegarLoopResult]: For program point L87(lines 87 89) no Hoare annotation was computed. [2020-11-28 03:08:31,342 INFO L274 CegarLoopResult]: For program point L87-2(lines 84 90) no Hoare annotation was computed. [2020-11-28 03:08:31,342 INFO L274 CegarLoopResult]: For program point L517(lines 517 531) no Hoare annotation was computed. [2020-11-28 03:08:31,342 INFO L274 CegarLoopResult]: For program point L352(lines 352 354) no Hoare annotation was computed. [2020-11-28 03:08:31,342 INFO L274 CegarLoopResult]: For program point L518(lines 518 523) no Hoare annotation was computed. [2020-11-28 03:08:31,343 INFO L274 CegarLoopResult]: For program point L518-2(lines 517 531) no Hoare annotation was computed. [2020-11-28 03:08:31,343 INFO L274 CegarLoopResult]: For program point L188(lines 188 486) no Hoare annotation was computed. [2020-11-28 03:08:31,343 INFO L274 CegarLoopResult]: For program point L155(lines 155 497) no Hoare annotation was computed. [2020-11-28 03:08:31,343 INFO L274 CegarLoopResult]: For program point L122(lines 122 508) no Hoare annotation was computed. [2020-11-28 03:08:31,344 INFO L274 CegarLoopResult]: For program point L222(lines 222 233) no Hoare annotation was computed. [2020-11-28 03:08:31,344 INFO L274 CegarLoopResult]: For program point L222-2(lines 201 480) no Hoare annotation was computed. [2020-11-28 03:08:31,344 INFO L274 CegarLoopResult]: For program point L520(lines 520 522) no Hoare annotation was computed. [2020-11-28 03:08:31,344 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:08:31,344 INFO L274 CegarLoopResult]: For program point L356(lines 356 361) no Hoare annotation was computed. [2020-11-28 03:08:31,344 INFO L274 CegarLoopResult]: For program point L356-2(lines 356 361) no Hoare annotation was computed. [2020-11-28 03:08:31,345 INFO L274 CegarLoopResult]: For program point L224(lines 224 227) no Hoare annotation was computed. [2020-11-28 03:08:31,345 INFO L274 CegarLoopResult]: For program point L191(lines 191 485) no Hoare annotation was computed. [2020-11-28 03:08:31,345 INFO L274 CegarLoopResult]: For program point L158(lines 158 496) no Hoare annotation was computed. [2020-11-28 03:08:31,345 INFO L274 CegarLoopResult]: For program point L125(lines 125 507) no Hoare annotation was computed. [2020-11-28 03:08:31,345 INFO L274 CegarLoopResult]: For program point L92(lines 92 96) no Hoare annotation was computed. [2020-11-28 03:08:31,346 INFO L274 CegarLoopResult]: For program point L456-1(lines 456 458) no Hoare annotation was computed. [2020-11-28 03:08:31,346 INFO L274 CegarLoopResult]: For program point L258(lines 258 260) no Hoare annotation was computed. [2020-11-28 03:08:31,347 INFO L270 CegarLoopResult]: At program point L192(lines 188 486) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse3 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse2 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse4 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 .cse4) (and .cse1 .cse2 .cse4) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse3 .cse2 .cse4))) [2020-11-28 03:08:31,347 INFO L270 CegarLoopResult]: At program point L126(lines 122 508) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse1) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-11-28 03:08:31,347 INFO L274 CegarLoopResult]: For program point L93(lines 93 95) no Hoare annotation was computed. [2020-11-28 03:08:31,347 INFO L277 CegarLoopResult]: At program point L556(lines 548 558) the Hoare annotation is: true [2020-11-28 03:08:31,348 INFO L274 CegarLoopResult]: For program point L325(lines 325 327) no Hoare annotation was computed. [2020-11-28 03:08:31,348 INFO L274 CegarLoopResult]: For program point L325-2(lines 201 480) no Hoare annotation was computed. [2020-11-28 03:08:31,348 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:08:31,348 INFO L274 CegarLoopResult]: For program point L392(lines 392 395) no Hoare annotation was computed. [2020-11-28 03:08:31,348 INFO L274 CegarLoopResult]: For program point L194(lines 194 484) no Hoare annotation was computed. [2020-11-28 03:08:31,348 INFO L274 CegarLoopResult]: For program point L161(lines 161 495) no Hoare annotation was computed. [2020-11-28 03:08:31,349 INFO L274 CegarLoopResult]: For program point L128(lines 128 506) no Hoare annotation was computed. [2020-11-28 03:08:31,349 INFO L274 CegarLoopResult]: For program point L525(lines 525 529) no Hoare annotation was computed. [2020-11-28 03:08:31,349 INFO L274 CegarLoopResult]: For program point L228(lines 228 231) no Hoare annotation was computed. [2020-11-28 03:08:31,349 INFO L270 CegarLoopResult]: At program point L195(lines 194 484) the Hoare annotation is: (let ((.cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse4 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse3) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse3) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse4 .cse1))) [2020-11-28 03:08:31,350 INFO L270 CegarLoopResult]: At program point L162(lines 152 498) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-11-28 03:08:31,350 INFO L274 CegarLoopResult]: For program point L427(lines 427 429) no Hoare annotation was computed. [2020-11-28 03:08:31,350 INFO L274 CegarLoopResult]: For program point L197(lines 197 483) no Hoare annotation was computed. [2020-11-28 03:08:31,350 INFO L274 CegarLoopResult]: For program point L164(lines 164 494) no Hoare annotation was computed. [2020-11-28 03:08:31,350 INFO L274 CegarLoopResult]: For program point L131(lines 131 505) no Hoare annotation was computed. [2020-11-28 03:08:31,350 INFO L274 CegarLoopResult]: For program point L98-1(lines 76 546) no Hoare annotation was computed. [2020-11-28 03:08:31,351 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:08:31,351 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:08:31,351 INFO L274 CegarLoopResult]: For program point L462(lines 462 464) no Hoare annotation was computed. [2020-11-28 03:08:31,351 INFO L274 CegarLoopResult]: For program point L462-2(lines 462 464) no Hoare annotation was computed. [2020-11-28 03:08:31,351 INFO L274 CegarLoopResult]: For program point L297(lines 297 299) no Hoare annotation was computed. [2020-11-28 03:08:31,352 INFO L274 CegarLoopResult]: For program point L297-2(lines 201 480) no Hoare annotation was computed. [2020-11-28 03:08:31,352 INFO L277 CegarLoopResult]: At program point L198(lines 197 483) the Hoare annotation is: true [2020-11-28 03:08:31,352 INFO L270 CegarLoopResult]: At program point L132(lines 128 506) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-11-28 03:08:31,352 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-11-28 03:08:31,352 INFO L274 CegarLoopResult]: For program point L430(lines 430 434) no Hoare annotation was computed. [2020-11-28 03:08:31,353 INFO L274 CegarLoopResult]: For program point L430-2(lines 430 434) no Hoare annotation was computed. [2020-11-28 03:08:31,353 INFO L274 CegarLoopResult]: For program point L331(lines 331 335) no Hoare annotation was computed. [2020-11-28 03:08:31,353 INFO L274 CegarLoopResult]: For program point L265(lines 265 267) no Hoare annotation was computed. [2020-11-28 03:08:31,353 INFO L274 CegarLoopResult]: For program point L331-2(lines 331 335) no Hoare annotation was computed. [2020-11-28 03:08:31,353 INFO L274 CegarLoopResult]: For program point L265-2(lines 201 480) no Hoare annotation was computed. [2020-11-28 03:08:31,353 INFO L277 CegarLoopResult]: At program point L200(lines 199 483) the Hoare annotation is: true [2020-11-28 03:08:31,354 INFO L274 CegarLoopResult]: For program point L167(lines 167 493) no Hoare annotation was computed. [2020-11-28 03:08:31,354 INFO L274 CegarLoopResult]: For program point L134(lines 134 504) no Hoare annotation was computed. [2020-11-28 03:08:31,354 INFO L274 CegarLoopResult]: For program point L101(lines 101 515) no Hoare annotation was computed. [2020-11-28 03:08:31,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:31 BoogieIcfgContainer [2020-11-28 03:08:31,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:31,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:31,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:31,407 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:31,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:10" (3/4) ... [2020-11-28 03:08:31,417 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:08:31,450 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:08:31,451 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:08:31,453 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:08:31,454 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:08:31,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5071d845-3157-4560-8ed2-4301740905b6/bin/uautomizer/witness.graphml [2020-11-28 03:08:31,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:31,600 INFO L168 Benchmark]: Toolchain (without parser) took 23088.55 ms. Allocated memory was 96.5 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 67.3 MB in the beginning and 811.2 MB in the end (delta: -743.8 MB). Peak memory consumption was 535.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:31,600 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:31,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.73 ms. Allocated memory is still 96.5 MB. Free memory was 67.1 MB in the beginning and 70.3 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:31,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.81 ms. Allocated memory is still 96.5 MB. Free memory was 70.3 MB in the beginning and 67.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:31,602 INFO L168 Benchmark]: Boogie Preprocessor took 50.38 ms. Allocated memory is still 96.5 MB. Free memory was 67.6 MB in the beginning and 65.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:31,603 INFO L168 Benchmark]: RCFGBuilder took 1315.29 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 65.4 MB in the beginning and 71.3 MB in the end (delta: -5.9 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:31,603 INFO L168 Benchmark]: TraceAbstraction took 20910.30 ms. Allocated memory was 119.5 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 70.8 MB in the beginning and 821.7 MB in the end (delta: -750.9 MB). Peak memory consumption was 505.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:31,604 INFO L168 Benchmark]: Witness Printer took 192.11 ms. Allocated memory is still 1.4 GB. Free memory was 821.7 MB in the beginning and 811.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:31,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 518.73 ms. Allocated memory is still 96.5 MB. Free memory was 67.1 MB in the beginning and 70.3 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.81 ms. Allocated memory is still 96.5 MB. Free memory was 70.3 MB in the beginning and 67.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.38 ms. Allocated memory is still 96.5 MB. Free memory was 67.6 MB in the beginning and 65.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1315.29 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 65.4 MB in the beginning and 71.3 MB in the end (delta: -5.9 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20910.30 ms. Allocated memory was 119.5 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 70.8 MB in the beginning and 821.7 MB in the end (delta: -750.9 MB). Peak memory consumption was 505.9 MB. Max. memory is 16.1 GB. * Witness Printer took 192.11 ms. Allocated memory is still 1.4 GB. Free memory was 821.7 MB in the beginning and 811.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 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: 182]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((blastFlag == 0 && 12292 == s__state) || ((blastFlag == 2 && 12292 == s__state) && s__hit == 0)) || (((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && 12292 == s__state) && s__hit == 0) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: ((((((((((((((((4512 == s__state && blastFlag == 2) || ((256 == s__s3__tmp__new_cipher__algorithms && s__state <= 3) && s__s3__tmp__next_state___0 <= 4560)) || (s__state == 4528 && blastFlag == 2)) || (((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || ((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state)) || (blastFlag == 2 && s__hit == 0)) || ((blastFlag == 2 && s__state <= 3) && s__s3__tmp__next_state___0 <= 4560)) || ((256 == s__s3__tmp__new_cipher__algorithms && 4464 == s__state) && s__hit == 0)) || ((s__state == 4528 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || ((256 == s__s3__tmp__new_cipher__algorithms && 4496 == s__state) && s__hit == 0)) || ((256 == s__s3__tmp__new_cipher__algorithms && s__state == 4480) && s__hit == 0)) || ((4512 == s__state && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state)) || (blastFlag == 0 && s__state == 4368) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((s__state <= 4560 && blastFlag == 1) && 4352 <= s__state)) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state) || ((((s__state <= 4560 && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || ((blastFlag == 2 && 4560 <= s__state) && s__hit == 0)) || (((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && 4560 <= s__state) && s__hit == 0) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || ((s__state <= 4560 && blastFlag == 0) && 4352 <= s__state) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: (((((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((s__state <= 4352 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((s__state <= 4352 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0)) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__hit == 0) || ((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (s__state <= 4352 && blastFlag == 0) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.9s, OverallIterations: 26, TraceHistogramMax: 18, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5036 SDtfs, 1502 SDslu, 2889 SDs, 0 SdLazy, 2415 SolverSat, 407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1564 GetRequests, 1530 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9228occurred in iteration=24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 26 MinimizatonAttempts, 3643 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 269 NumberOfFragments, 696 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9570 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 22 FomulaSimplificationsInter, 1190 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 6634 NumberOfCodeBlocks, 6634 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 6604 ConstructedInterpolants, 0 QuantifiedInterpolants, 2667422 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2703 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 30 InterpolantComputations, 23 PerfectInterpolantSequences, 22225/22304 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...