./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f559dc59bc463f9a27da280f1f7098996cb99e14cb280bd541f8697a124cb729 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:57:17,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:57:17,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:57:17,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:57:17,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:57:17,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:57:17,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:57:17,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:57:17,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:57:17,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:57:17,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:57:17,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:57:17,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:57:17,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:57:17,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:57:17,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:57:17,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:57:17,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:57:17,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:57:17,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:57:17,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:57:17,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:57:17,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:57:17,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:57:17,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:57:17,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:57:17,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:57:17,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:57:17,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:57:17,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:57:17,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:57:17,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:57:17,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:57:17,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:57:17,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:57:17,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:57:17,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:57:17,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:57:17,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:57:17,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:57:17,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:57:17,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:57:17,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:57:17,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:57:17,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:57:17,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:57:17,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:57:17,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:57:17,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:57:17,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:57:17,135 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:57:17,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:57:17,136 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:57:17,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:57:17,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:57:17,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:57:17,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:57:17,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:57:17,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:57:17,137 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:57:17,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:57:17,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:57:17,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:57:17,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:57:17,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:57:17,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:57:17,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:57:17,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:57:17,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:57:17,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:57:17,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:57:17,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:57:17,139 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:57:17,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:57:17,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:57:17,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:57:17,139 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f559dc59bc463f9a27da280f1f7098996cb99e14cb280bd541f8697a124cb729 [2021-12-15 08:57:17,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:57:17,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:57:17,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:57:17,366 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:57:17,367 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:57:17,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c [2021-12-15 08:57:17,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19768508/1872cfb5c58b41a4bdd4bbf2fe83909e/FLAG12d8cac65 [2021-12-15 08:57:17,697 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:57:17,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c [2021-12-15 08:57:17,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19768508/1872cfb5c58b41a4bdd4bbf2fe83909e/FLAG12d8cac65 [2021-12-15 08:57:18,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19768508/1872cfb5c58b41a4bdd4bbf2fe83909e [2021-12-15 08:57:18,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:57:18,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:57:18,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:57:18,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:57:18,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:57:18,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75213a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18, skipping insertion in model container [2021-12-15 08:57:18,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:57:18,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:57:18,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c[42875,42888] [2021-12-15 08:57:18,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:57:18,334 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:57:18,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_4.cil.c[42875,42888] [2021-12-15 08:57:18,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:57:18,382 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:57:18,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18 WrapperNode [2021-12-15 08:57:18,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:57:18,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:57:18,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:57:18,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:57:18,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,430 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 546 [2021-12-15 08:57:18,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:57:18,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:57:18,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:57:18,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:57:18,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:57:18,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:57:18,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:57:18,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:57:18,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (1/1) ... [2021-12-15 08:57:18,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:57:18,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:18,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 08:57:18,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 08:57:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:57:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:57:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:57:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:57:18,591 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:57:18,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:57:18,603 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 08:57:18,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-12-15 08:57:18,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-12-15 08:57:18,964 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:57:18,969 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:57:18,970 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 08:57:18,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:18 BoogieIcfgContainer [2021-12-15 08:57:18,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:57:18,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:57:18,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:57:18,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:57:18,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:57:18" (1/3) ... [2021-12-15 08:57:18,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de840ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:57:18, skipping insertion in model container [2021-12-15 08:57:18,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:18" (2/3) ... [2021-12-15 08:57:18,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de840ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:57:18, skipping insertion in model container [2021-12-15 08:57:18,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:18" (3/3) ... [2021-12-15 08:57:18,978 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_4.cil.c [2021-12-15 08:57:18,981 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:57:18,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:57:19,012 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:57:19,017 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 08:57:19,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:57:19,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 139 states have (on average 1.7266187050359711) internal successors, (240), 140 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-15 08:57:19,035 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:19,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:19,036 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:19,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:19,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1632005994, now seen corresponding path program 1 times [2021-12-15 08:57:19,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:19,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007669865] [2021-12-15 08:57:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:19,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:57:19,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:19,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007669865] [2021-12-15 08:57:19,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007669865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:19,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:19,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:19,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041255848] [2021-12-15 08:57:19,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:19,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:19,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:19,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:19,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:19,260 INFO L87 Difference]: Start difference. First operand has 141 states, 139 states have (on average 1.7266187050359711) internal successors, (240), 140 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:19,429 INFO L93 Difference]: Finished difference Result 302 states and 514 transitions. [2021-12-15 08:57:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:19,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-12-15 08:57:19,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:19,440 INFO L225 Difference]: With dead ends: 302 [2021-12-15 08:57:19,440 INFO L226 Difference]: Without dead ends: 149 [2021-12-15 08:57:19,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:19,452 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 31 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:19,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 366 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:19,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-12-15 08:57:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2021-12-15 08:57:19,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.5103448275862068) internal successors, (219), 145 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 219 transitions. [2021-12-15 08:57:19,494 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 219 transitions. Word has length 44 [2021-12-15 08:57:19,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:19,494 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 219 transitions. [2021-12-15 08:57:19,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,496 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 219 transitions. [2021-12-15 08:57:19,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-15 08:57:19,501 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:19,501 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 08:57:19,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:57:19,502 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:19,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:19,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1928463050, now seen corresponding path program 1 times [2021-12-15 08:57:19,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:19,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489908159] [2021-12-15 08:57:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:19,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:57:19,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:19,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489908159] [2021-12-15 08:57:19,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489908159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:19,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:19,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:19,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701906208] [2021-12-15 08:57:19,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:19,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:19,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:19,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:19,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:19,591 INFO L87 Difference]: Start difference. First operand 146 states and 219 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:19,687 INFO L93 Difference]: Finished difference Result 309 states and 470 transitions. [2021-12-15 08:57:19,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:19,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-12-15 08:57:19,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:19,688 INFO L225 Difference]: With dead ends: 309 [2021-12-15 08:57:19,688 INFO L226 Difference]: Without dead ends: 171 [2021-12-15 08:57:19,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:19,690 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 14 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:19,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 292 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:19,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-12-15 08:57:19,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2021-12-15 08:57:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.4759036144578312) internal successors, (245), 166 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 245 transitions. [2021-12-15 08:57:19,697 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 245 transitions. Word has length 60 [2021-12-15 08:57:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:19,697 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 245 transitions. [2021-12-15 08:57:19,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,697 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 245 transitions. [2021-12-15 08:57:19,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-15 08:57:19,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:19,699 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:19,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 08:57:19,699 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:19,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 81763384, now seen corresponding path program 1 times [2021-12-15 08:57:19,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:19,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165842627] [2021-12-15 08:57:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:19,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:19,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:19,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165842627] [2021-12-15 08:57:19,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165842627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:19,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:19,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:19,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518704117] [2021-12-15 08:57:19,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:19,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:19,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:19,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:19,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:19,747 INFO L87 Difference]: Start difference. First operand 167 states and 245 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:19,852 INFO L93 Difference]: Finished difference Result 373 states and 563 transitions. [2021-12-15 08:57:19,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:19,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-15 08:57:19,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:19,854 INFO L225 Difference]: With dead ends: 373 [2021-12-15 08:57:19,854 INFO L226 Difference]: Without dead ends: 214 [2021-12-15 08:57:19,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:19,855 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 17 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:19,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 288 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:19,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-12-15 08:57:19,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 209. [2021-12-15 08:57:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4038461538461537) internal successors, (292), 208 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 292 transitions. [2021-12-15 08:57:19,863 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 292 transitions. Word has length 81 [2021-12-15 08:57:19,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:19,864 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 292 transitions. [2021-12-15 08:57:19,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,864 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 292 transitions. [2021-12-15 08:57:19,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-15 08:57:19,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:19,865 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:19,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 08:57:19,866 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:19,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:19,866 INFO L85 PathProgramCache]: Analyzing trace with hash 329909878, now seen corresponding path program 1 times [2021-12-15 08:57:19,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:19,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458175645] [2021-12-15 08:57:19,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:19,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:19,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:19,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458175645] [2021-12-15 08:57:19,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458175645] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:19,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:19,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:19,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569752975] [2021-12-15 08:57:19,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:19,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:19,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:19,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:19,903 INFO L87 Difference]: Start difference. First operand 209 states and 292 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:19,989 INFO L93 Difference]: Finished difference Result 437 states and 619 transitions. [2021-12-15 08:57:19,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:19,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-15 08:57:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:19,990 INFO L225 Difference]: With dead ends: 437 [2021-12-15 08:57:19,990 INFO L226 Difference]: Without dead ends: 236 [2021-12-15 08:57:19,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:19,992 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 14 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:19,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 308 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-12-15 08:57:19,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 232. [2021-12-15 08:57:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.3852813852813852) internal successors, (320), 231 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 320 transitions. [2021-12-15 08:57:19,999 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 320 transitions. Word has length 81 [2021-12-15 08:57:19,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:19,999 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 320 transitions. [2021-12-15 08:57:19,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:19,999 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 320 transitions. [2021-12-15 08:57:20,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-15 08:57:20,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,000 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:20,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 08:57:20,001 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,001 INFO L85 PathProgramCache]: Analyzing trace with hash 265533208, now seen corresponding path program 1 times [2021-12-15 08:57:20,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527895896] [2021-12-15 08:57:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-15 08:57:20,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527895896] [2021-12-15 08:57:20,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527895896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:20,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:20,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:20,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260181604] [2021-12-15 08:57:20,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:20,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:20,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:20,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:20,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,040 INFO L87 Difference]: Start difference. First operand 232 states and 320 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:20,125 INFO L93 Difference]: Finished difference Result 494 states and 695 transitions. [2021-12-15 08:57:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:20,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-15 08:57:20,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:20,127 INFO L225 Difference]: With dead ends: 494 [2021-12-15 08:57:20,127 INFO L226 Difference]: Without dead ends: 270 [2021-12-15 08:57:20,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,128 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 30 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:20,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 307 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-12-15 08:57:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 257. [2021-12-15 08:57:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.3671875) internal successors, (350), 256 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 350 transitions. [2021-12-15 08:57:20,134 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 350 transitions. Word has length 102 [2021-12-15 08:57:20,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:20,134 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 350 transitions. [2021-12-15 08:57:20,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 350 transitions. [2021-12-15 08:57:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-15 08:57:20,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,136 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:20,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 08:57:20,136 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1932137040, now seen corresponding path program 1 times [2021-12-15 08:57:20,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179247876] [2021-12-15 08:57:20,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-15 08:57:20,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179247876] [2021-12-15 08:57:20,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179247876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:20,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:20,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:20,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782027964] [2021-12-15 08:57:20,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:20,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:20,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:20,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:20,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,175 INFO L87 Difference]: Start difference. First operand 257 states and 350 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:20,194 INFO L93 Difference]: Finished difference Result 753 states and 1025 transitions. [2021-12-15 08:57:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:20,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-15 08:57:20,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:20,196 INFO L225 Difference]: With dead ends: 753 [2021-12-15 08:57:20,196 INFO L226 Difference]: Without dead ends: 504 [2021-12-15 08:57:20,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,197 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 137 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:20,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 464 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:20,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-12-15 08:57:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2021-12-15 08:57:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.3558648111332008) internal successors, (682), 503 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 682 transitions. [2021-12-15 08:57:20,207 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 682 transitions. Word has length 121 [2021-12-15 08:57:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:20,208 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 682 transitions. [2021-12-15 08:57:20,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 682 transitions. [2021-12-15 08:57:20,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 08:57:20,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,209 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:20,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 08:57:20,209 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1552830339, now seen corresponding path program 1 times [2021-12-15 08:57:20,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926246122] [2021-12-15 08:57:20,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,260 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:20,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926246122] [2021-12-15 08:57:20,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926246122] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:20,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:20,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:20,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010960438] [2021-12-15 08:57:20,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:20,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:20,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:20,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:20,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,262 INFO L87 Difference]: Start difference. First operand 504 states and 682 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:20,282 INFO L93 Difference]: Finished difference Result 1244 states and 1685 transitions. [2021-12-15 08:57:20,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:20,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-15 08:57:20,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:20,285 INFO L225 Difference]: With dead ends: 1244 [2021-12-15 08:57:20,285 INFO L226 Difference]: Without dead ends: 748 [2021-12-15 08:57:20,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,286 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 134 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:20,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 497 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-12-15 08:57:20,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2021-12-15 08:57:20,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 747 states have (on average 1.3534136546184738) internal successors, (1011), 747 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1011 transitions. [2021-12-15 08:57:20,299 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1011 transitions. Word has length 122 [2021-12-15 08:57:20,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:20,300 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1011 transitions. [2021-12-15 08:57:20,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,300 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1011 transitions. [2021-12-15 08:57:20,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 08:57:20,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,302 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:20,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 08:57:20,302 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,302 INFO L85 PathProgramCache]: Analyzing trace with hash 323652479, now seen corresponding path program 1 times [2021-12-15 08:57:20,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132442967] [2021-12-15 08:57:20,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-15 08:57:20,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132442967] [2021-12-15 08:57:20,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132442967] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:20,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:20,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:20,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137951675] [2021-12-15 08:57:20,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:20,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:20,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:20,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:20,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,327 INFO L87 Difference]: Start difference. First operand 748 states and 1011 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:20,341 INFO L93 Difference]: Finished difference Result 1512 states and 2040 transitions. [2021-12-15 08:57:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:20,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-15 08:57:20,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:20,344 INFO L225 Difference]: With dead ends: 1512 [2021-12-15 08:57:20,344 INFO L226 Difference]: Without dead ends: 772 [2021-12-15 08:57:20,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,346 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 10 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:20,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 390 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:20,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2021-12-15 08:57:20,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 772. [2021-12-15 08:57:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 771 states have (on average 1.3488975356679638) internal successors, (1040), 771 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1040 transitions. [2021-12-15 08:57:20,357 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1040 transitions. Word has length 122 [2021-12-15 08:57:20,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:20,357 INFO L470 AbstractCegarLoop]: Abstraction has 772 states and 1040 transitions. [2021-12-15 08:57:20,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1040 transitions. [2021-12-15 08:57:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 08:57:20,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,360 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:20,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 08:57:20,360 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1712946493, now seen corresponding path program 1 times [2021-12-15 08:57:20,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392747858] [2021-12-15 08:57:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,379 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-15 08:57:20,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392747858] [2021-12-15 08:57:20,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392747858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:20,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:20,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:20,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809603029] [2021-12-15 08:57:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:20,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:20,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:20,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:20,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,386 INFO L87 Difference]: Start difference. First operand 772 states and 1040 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:20,401 INFO L93 Difference]: Finished difference Result 1549 states and 2082 transitions. [2021-12-15 08:57:20,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-15 08:57:20,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:20,404 INFO L225 Difference]: With dead ends: 1549 [2021-12-15 08:57:20,404 INFO L226 Difference]: Without dead ends: 785 [2021-12-15 08:57:20,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,405 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 6 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:20,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 370 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:20,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2021-12-15 08:57:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 785. [2021-12-15 08:57:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 784 states have (on average 1.343112244897959) internal successors, (1053), 784 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1053 transitions. [2021-12-15 08:57:20,418 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1053 transitions. Word has length 122 [2021-12-15 08:57:20,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:20,418 INFO L470 AbstractCegarLoop]: Abstraction has 785 states and 1053 transitions. [2021-12-15 08:57:20,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,418 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1053 transitions. [2021-12-15 08:57:20,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-15 08:57:20,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,420 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:20,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 08:57:20,421 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1470040731, now seen corresponding path program 1 times [2021-12-15 08:57:20,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952649477] [2021-12-15 08:57:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-15 08:57:20,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952649477] [2021-12-15 08:57:20,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952649477] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:20,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:20,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:20,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082777337] [2021-12-15 08:57:20,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:20,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:20,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:20,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,451 INFO L87 Difference]: Start difference. First operand 785 states and 1053 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:20,567 INFO L93 Difference]: Finished difference Result 1665 states and 2282 transitions. [2021-12-15 08:57:20,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:20,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2021-12-15 08:57:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:20,570 INFO L225 Difference]: With dead ends: 1665 [2021-12-15 08:57:20,570 INFO L226 Difference]: Without dead ends: 901 [2021-12-15 08:57:20,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,572 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 33 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:20,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 292 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2021-12-15 08:57:20,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 867. [2021-12-15 08:57:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 866 states have (on average 1.3290993071593533) internal successors, (1151), 866 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1151 transitions. [2021-12-15 08:57:20,584 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1151 transitions. Word has length 162 [2021-12-15 08:57:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:20,585 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1151 transitions. [2021-12-15 08:57:20,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1151 transitions. [2021-12-15 08:57:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-15 08:57:20,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,587 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:20,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 08:57:20,587 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,588 INFO L85 PathProgramCache]: Analyzing trace with hash -676110103, now seen corresponding path program 1 times [2021-12-15 08:57:20,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293950870] [2021-12-15 08:57:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-12-15 08:57:20,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293950870] [2021-12-15 08:57:20,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293950870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:20,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:20,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:20,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512461665] [2021-12-15 08:57:20,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:20,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:20,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:20,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:20,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,621 INFO L87 Difference]: Start difference. First operand 867 states and 1151 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:20,730 INFO L93 Difference]: Finished difference Result 1883 states and 2570 transitions. [2021-12-15 08:57:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:20,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-12-15 08:57:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:20,733 INFO L225 Difference]: With dead ends: 1883 [2021-12-15 08:57:20,733 INFO L226 Difference]: Without dead ends: 1034 [2021-12-15 08:57:20,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,734 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 160 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:20,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 156 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:20,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-12-15 08:57:20,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1020. [2021-12-15 08:57:20,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 1019 states have (on average 1.379784102060844) internal successors, (1406), 1019 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1406 transitions. [2021-12-15 08:57:20,751 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1406 transitions. Word has length 175 [2021-12-15 08:57:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:20,751 INFO L470 AbstractCegarLoop]: Abstraction has 1020 states and 1406 transitions. [2021-12-15 08:57:20,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1406 transitions. [2021-12-15 08:57:20,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-15 08:57:20,753 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,753 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 08:57:20,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 08:57:20,753 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1635145685, now seen corresponding path program 1 times [2021-12-15 08:57:20,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826158587] [2021-12-15 08:57:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-15 08:57:20,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826158587] [2021-12-15 08:57:20,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826158587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:20,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:20,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:20,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077791469] [2021-12-15 08:57:20,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:20,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:20,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,795 INFO L87 Difference]: Start difference. First operand 1020 states and 1406 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:20,900 INFO L93 Difference]: Finished difference Result 2112 states and 2952 transitions. [2021-12-15 08:57:20,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:20,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 204 [2021-12-15 08:57:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:20,903 INFO L225 Difference]: With dead ends: 2112 [2021-12-15 08:57:20,903 INFO L226 Difference]: Without dead ends: 1113 [2021-12-15 08:57:20,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:20,904 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 13 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:20,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 302 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2021-12-15 08:57:20,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2021-12-15 08:57:20,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 1.3615107913669064) internal successors, (1514), 1112 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1514 transitions. [2021-12-15 08:57:20,919 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1514 transitions. Word has length 204 [2021-12-15 08:57:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:20,919 INFO L470 AbstractCegarLoop]: Abstraction has 1113 states and 1514 transitions. [2021-12-15 08:57:20,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:20,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1514 transitions. [2021-12-15 08:57:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-15 08:57:20,921 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:20,932 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 08:57:20,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 08:57:20,935 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash -344869126, now seen corresponding path program 1 times [2021-12-15 08:57:20,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:20,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868083730] [2021-12-15 08:57:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-15 08:57:20,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:20,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868083730] [2021-12-15 08:57:20,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868083730] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:20,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230136393] [2021-12-15 08:57:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:20,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:20,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:20,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:21,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 08:57:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:21,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:21,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:21,330 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-15 08:57:21,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:21,514 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-15 08:57:21,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230136393] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:21,514 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:21,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 08:57:21,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789850123] [2021-12-15 08:57:21,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:21,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 08:57:21,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:21,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 08:57:21,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 08:57:21,516 INFO L87 Difference]: Start difference. First operand 1113 states and 1514 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:21,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:21,664 INFO L93 Difference]: Finished difference Result 2543 states and 3464 transitions. [2021-12-15 08:57:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 08:57:21,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2021-12-15 08:57:21,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:21,668 INFO L225 Difference]: With dead ends: 2543 [2021-12-15 08:57:21,668 INFO L226 Difference]: Without dead ends: 1420 [2021-12-15 08:57:21,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 08:57:21,670 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 558 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:21,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 466 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:21,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2021-12-15 08:57:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1203. [2021-12-15 08:57:21,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1202 states have (on average 1.3186356073211314) internal successors, (1585), 1202 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:21,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1585 transitions. [2021-12-15 08:57:21,707 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1585 transitions. Word has length 232 [2021-12-15 08:57:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:21,708 INFO L470 AbstractCegarLoop]: Abstraction has 1203 states and 1585 transitions. [2021-12-15 08:57:21,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1585 transitions. [2021-12-15 08:57:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-15 08:57:21,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:21,710 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 08:57:21,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:21,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-15 08:57:21,939 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:21,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:21,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1272517136, now seen corresponding path program 1 times [2021-12-15 08:57:21,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:21,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938717406] [2021-12-15 08:57:21,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:21,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:21,978 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-15 08:57:21,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:21,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938717406] [2021-12-15 08:57:21,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938717406] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:21,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114805506] [2021-12-15 08:57:21,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:21,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:21,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:21,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:22,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 08:57:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:22,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:22,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-15 08:57:22,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-15 08:57:22,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114805506] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:22,525 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:22,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 08:57:22,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249799597] [2021-12-15 08:57:22,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:22,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 08:57:22,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:22,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 08:57:22,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 08:57:22,528 INFO L87 Difference]: Start difference. First operand 1203 states and 1585 transitions. Second operand has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:22,873 INFO L93 Difference]: Finished difference Result 4997 states and 6887 transitions. [2021-12-15 08:57:22,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 08:57:22,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-12-15 08:57:22,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:22,884 INFO L225 Difference]: With dead ends: 4997 [2021-12-15 08:57:22,898 INFO L226 Difference]: Without dead ends: 3839 [2021-12-15 08:57:22,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-15 08:57:22,902 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 529 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:22,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 1287 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 08:57:22,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2021-12-15 08:57:23,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3212. [2021-12-15 08:57:23,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3211 states have (on average 1.3229523512924322) internal successors, (4248), 3211 states have internal predecessors, (4248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 4248 transitions. [2021-12-15 08:57:23,028 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 4248 transitions. Word has length 253 [2021-12-15 08:57:23,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,028 INFO L470 AbstractCegarLoop]: Abstraction has 3212 states and 4248 transitions. [2021-12-15 08:57:23,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 4248 transitions. [2021-12-15 08:57:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-15 08:57:23,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,047 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 08:57:23,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:23,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-15 08:57:23,264 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1561336526, now seen corresponding path program 1 times [2021-12-15 08:57:23,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90414156] [2021-12-15 08:57:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-12-15 08:57:23,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90414156] [2021-12-15 08:57:23,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90414156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786284803] [2021-12-15 08:57:23,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,346 INFO L87 Difference]: Start difference. First operand 3212 states and 4248 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,421 INFO L93 Difference]: Finished difference Result 8420 states and 11171 transitions. [2021-12-15 08:57:23,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-12-15 08:57:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,435 INFO L225 Difference]: With dead ends: 8420 [2021-12-15 08:57:23,435 INFO L226 Difference]: Without dead ends: 5253 [2021-12-15 08:57:23,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,442 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 132 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 524 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5253 states. [2021-12-15 08:57:23,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5253 to 4811. [2021-12-15 08:57:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 4810 states have (on average 1.3336798336798337) internal successors, (6415), 4810 states have internal predecessors, (6415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 6415 transitions. [2021-12-15 08:57:23,569 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 6415 transitions. Word has length 253 [2021-12-15 08:57:23,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,570 INFO L470 AbstractCegarLoop]: Abstraction has 4811 states and 6415 transitions. [2021-12-15 08:57:23,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,570 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 6415 transitions. [2021-12-15 08:57:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-12-15 08:57:23,575 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,576 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:23,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 08:57:23,576 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1935162, now seen corresponding path program 1 times [2021-12-15 08:57:23,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334788880] [2021-12-15 08:57:23,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-15 08:57:23,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334788880] [2021-12-15 08:57:23,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334788880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688929047] [2021-12-15 08:57:23,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,613 INFO L87 Difference]: Start difference. First operand 4811 states and 6415 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,732 INFO L93 Difference]: Finished difference Result 8212 states and 11125 transitions. [2021-12-15 08:57:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2021-12-15 08:57:23,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,738 INFO L225 Difference]: With dead ends: 8212 [2021-12-15 08:57:23,739 INFO L226 Difference]: Without dead ends: 2461 [2021-12-15 08:57:23,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,744 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 26 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 309 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:23,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2021-12-15 08:57:23,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2281. [2021-12-15 08:57:23,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2280 states have (on average 1.3135964912280702) internal successors, (2995), 2280 states have internal predecessors, (2995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 2995 transitions. [2021-12-15 08:57:23,778 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 2995 transitions. Word has length 290 [2021-12-15 08:57:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,778 INFO L470 AbstractCegarLoop]: Abstraction has 2281 states and 2995 transitions. [2021-12-15 08:57:23,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 2995 transitions. [2021-12-15 08:57:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-12-15 08:57:23,813 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,813 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-15 08:57:23,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 08:57:23,813 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash -616309997, now seen corresponding path program 1 times [2021-12-15 08:57:23,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348297453] [2021-12-15 08:57:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2021-12-15 08:57:23,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348297453] [2021-12-15 08:57:23,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348297453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028367029] [2021-12-15 08:57:23,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,846 INFO L87 Difference]: Start difference. First operand 2281 states and 2995 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,933 INFO L93 Difference]: Finished difference Result 4754 states and 6285 transitions. [2021-12-15 08:57:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2021-12-15 08:57:23,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,940 INFO L225 Difference]: With dead ends: 4754 [2021-12-15 08:57:23,940 INFO L226 Difference]: Without dead ends: 2518 [2021-12-15 08:57:23,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,943 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 19 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 300 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2021-12-15 08:57:23,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2470. [2021-12-15 08:57:23,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2469 states have (on average 1.3037667071688943) internal successors, (3219), 2469 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3219 transitions. [2021-12-15 08:57:23,980 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3219 transitions. Word has length 337 [2021-12-15 08:57:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,980 INFO L470 AbstractCegarLoop]: Abstraction has 2470 states and 3219 transitions. [2021-12-15 08:57:23,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3219 transitions. [2021-12-15 08:57:23,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-12-15 08:57:23,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,985 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-15 08:57:23,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 08:57:23,986 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1063549815, now seen corresponding path program 1 times [2021-12-15 08:57:23,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463304297] [2021-12-15 08:57:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 738 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2021-12-15 08:57:24,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:24,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463304297] [2021-12-15 08:57:24,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463304297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:24,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:24,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:24,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178752660] [2021-12-15 08:57:24,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:24,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:24,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:24,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:24,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:24,033 INFO L87 Difference]: Start difference. First operand 2470 states and 3219 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:24,115 INFO L93 Difference]: Finished difference Result 4917 states and 6402 transitions. [2021-12-15 08:57:24,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:24,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-12-15 08:57:24,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:24,122 INFO L225 Difference]: With dead ends: 4917 [2021-12-15 08:57:24,122 INFO L226 Difference]: Without dead ends: 2492 [2021-12-15 08:57:24,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:24,124 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 11 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:24,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 290 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2021-12-15 08:57:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 1756. [2021-12-15 08:57:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1755 states have (on average 1.2871794871794873) internal successors, (2259), 1755 states have internal predecessors, (2259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2259 transitions. [2021-12-15 08:57:24,153 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2259 transitions. Word has length 360 [2021-12-15 08:57:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:24,153 INFO L470 AbstractCegarLoop]: Abstraction has 1756 states and 2259 transitions. [2021-12-15 08:57:24,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2259 transitions. [2021-12-15 08:57:24,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-12-15 08:57:24,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:24,157 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-15 08:57:24,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 08:57:24,158 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:24,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash -2107174257, now seen corresponding path program 1 times [2021-12-15 08:57:24,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:24,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024189367] [2021-12-15 08:57:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:24,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:24,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 1011 proven. 26 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-12-15 08:57:24,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:24,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024189367] [2021-12-15 08:57:24,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024189367] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:24,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495229706] [2021-12-15 08:57:24,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:24,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:24,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:24,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:24,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 08:57:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:24,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:24,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:24,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2021-12-15 08:57:24,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:24,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495229706] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:24,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:24,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:24,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281250232] [2021-12-15 08:57:24,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:24,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:24,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:24,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:24,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:24,786 INFO L87 Difference]: Start difference. First operand 1756 states and 2259 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:24,804 INFO L93 Difference]: Finished difference Result 1784 states and 2291 transitions. [2021-12-15 08:57:24,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:24,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2021-12-15 08:57:24,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:24,808 INFO L225 Difference]: With dead ends: 1784 [2021-12-15 08:57:24,809 INFO L226 Difference]: Without dead ends: 1646 [2021-12-15 08:57:24,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:24,810 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 90 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:24,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 257 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2021-12-15 08:57:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1620. [2021-12-15 08:57:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1619 states have (on average 1.3001852995676344) internal successors, (2105), 1619 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2105 transitions. [2021-12-15 08:57:24,839 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2105 transitions. Word has length 393 [2021-12-15 08:57:24,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:24,840 INFO L470 AbstractCegarLoop]: Abstraction has 1620 states and 2105 transitions. [2021-12-15 08:57:24,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2105 transitions. [2021-12-15 08:57:24,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-12-15 08:57:24,846 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:24,846 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2021-12-15 08:57:24,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-15 08:57:25,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:25,085 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash 2021892229, now seen corresponding path program 1 times [2021-12-15 08:57:25,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:25,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948779398] [2021-12-15 08:57:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:25,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-12-15 08:57:25,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:25,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948779398] [2021-12-15 08:57:25,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948779398] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:25,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280553645] [2021-12-15 08:57:25,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:25,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:25,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:25,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:25,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 08:57:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:25,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:25,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-12-15 08:57:25,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-12-15 08:57:25,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280553645] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:25,820 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:25,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 08:57:25,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663157843] [2021-12-15 08:57:25,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:25,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 08:57:25,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:25,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 08:57:25,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 08:57:25,822 INFO L87 Difference]: Start difference. First operand 1620 states and 2105 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:26,020 INFO L93 Difference]: Finished difference Result 3530 states and 4613 transitions. [2021-12-15 08:57:26,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 08:57:26,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2021-12-15 08:57:26,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:26,031 INFO L225 Difference]: With dead ends: 3530 [2021-12-15 08:57:26,031 INFO L226 Difference]: Without dead ends: 1901 [2021-12-15 08:57:26,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 818 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-15 08:57:26,034 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 414 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:26,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 365 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 08:57:26,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2021-12-15 08:57:26,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1719. [2021-12-15 08:57:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 1718 states have (on average 1.3055878928987195) internal successors, (2243), 1718 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2243 transitions. [2021-12-15 08:57:26,066 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2243 transitions. Word has length 409 [2021-12-15 08:57:26,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:26,067 INFO L470 AbstractCegarLoop]: Abstraction has 1719 states and 2243 transitions. [2021-12-15 08:57:26,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2243 transitions. [2021-12-15 08:57:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-12-15 08:57:26,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:26,073 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:26,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:26,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:26,287 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:26,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:26,288 INFO L85 PathProgramCache]: Analyzing trace with hash -50523035, now seen corresponding path program 1 times [2021-12-15 08:57:26,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:26,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204372219] [2021-12-15 08:57:26,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:26,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3128 backedges. 1661 proven. 0 refuted. 0 times theorem prover too weak. 1467 trivial. 0 not checked. [2021-12-15 08:57:26,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:26,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204372219] [2021-12-15 08:57:26,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204372219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:26,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:26,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:26,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219952738] [2021-12-15 08:57:26,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:26,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:26,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:26,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:26,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,346 INFO L87 Difference]: Start difference. First operand 1719 states and 2243 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:26,437 INFO L93 Difference]: Finished difference Result 3633 states and 4779 transitions. [2021-12-15 08:57:26,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:26,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 537 [2021-12-15 08:57:26,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:26,440 INFO L225 Difference]: With dead ends: 3633 [2021-12-15 08:57:26,440 INFO L226 Difference]: Without dead ends: 1935 [2021-12-15 08:57:26,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,442 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 11 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:26,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 289 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:26,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2021-12-15 08:57:26,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1923. [2021-12-15 08:57:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1922 states have (on average 1.2887617065556711) internal successors, (2477), 1922 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2477 transitions. [2021-12-15 08:57:26,469 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2477 transitions. Word has length 537 [2021-12-15 08:57:26,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:26,469 INFO L470 AbstractCegarLoop]: Abstraction has 1923 states and 2477 transitions. [2021-12-15 08:57:26,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2477 transitions. [2021-12-15 08:57:26,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2021-12-15 08:57:26,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:26,474 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:26,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 08:57:26,474 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:26,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:26,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1600887189, now seen corresponding path program 1 times [2021-12-15 08:57:26,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:26,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598370492] [2021-12-15 08:57:26,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:26,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-12-15 08:57:26,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:26,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598370492] [2021-12-15 08:57:26,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598370492] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:26,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861930738] [2021-12-15 08:57:26,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:26,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:26,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:26,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:26,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 08:57:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:26,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:26,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-12-15 08:57:27,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-12-15 08:57:27,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861930738] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:27,911 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:27,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-12-15 08:57:27,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356056812] [2021-12-15 08:57:27,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:27,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 08:57:27,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:27,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 08:57:27,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-15 08:57:27,914 INFO L87 Difference]: Start difference. First operand 1923 states and 2477 transitions. Second operand has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:28,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:28,112 INFO L93 Difference]: Finished difference Result 2770 states and 3562 transitions. [2021-12-15 08:57:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 08:57:28,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 599 [2021-12-15 08:57:28,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:28,114 INFO L225 Difference]: With dead ends: 2770 [2021-12-15 08:57:28,114 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 08:57:28,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1206 GetRequests, 1197 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-15 08:57:28,117 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 222 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:28,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 776 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 08:57:28,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 08:57:28,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 08:57:28,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 08:57:28,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 599 [2021-12-15 08:57:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:28,118 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 08:57:28,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 08:57:28,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 08:57:28,120 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 08:57:28,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:28,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-15 08:57:28,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 08:57:30,405 INFO L858 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2021-12-15 08:57:30,405 INFO L858 garLoopResultBuilder]: For program point L531-2(lines 531 535) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 417) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L854 garLoopResultBuilder]: At program point L201(lines 197 562) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640) (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) .cse0 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640)) (and (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) .cse0))) [2021-12-15 08:57:30,406 INFO L854 garLoopResultBuilder]: At program point L168(lines 164 573) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,406 INFO L854 garLoopResultBuilder]: At program point L135(lines 134 583) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)))) [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 104) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L499(lines 499 502) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 406) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L861 garLoopResultBuilder]: At program point L632(lines 623 634) the Hoare annotation is: true [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 560) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 571) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 582) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L600(lines 600 604) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 272) no Hoare annotation was computed. [2021-12-15 08:57:30,406 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 248) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L237-2(lines 219 553) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 308) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L304-2(lines 304 308) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 437 445) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 559) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 570) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 581) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L504(lines 504 510) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L854 garLoopResultBuilder]: At program point L207(lines 203 560) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse2 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) .cse1 .cse2) (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse1 .cse2))) [2021-12-15 08:57:30,407 INFO L854 garLoopResultBuilder]: At program point L174(lines 170 571) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 443) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 379) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L209(lines 209 558) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 569) no Hoare annotation was computed. [2021-12-15 08:57:30,407 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 580) no Hoare annotation was computed. [2021-12-15 08:57:30,408 INFO L854 garLoopResultBuilder]: At program point L110-2(lines 110 609) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse7 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse9 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640)) (.cse5 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (.cse8 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse11 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3)) (.cse6 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0))) (.cse10 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656)) (.cse1 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (.cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse12 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse13 (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse4 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3))) (or (and .cse0 .cse1 .cse2 (< 8496 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and .cse3 .cse1 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) .cse4) (and .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse0 .cse2) (and .cse6 .cse3 .cse7 .cse9) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8560) .cse1 .cse2) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528)) (and .cse11 .cse9) (and .cse12 .cse6 .cse13 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse8) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8464)) (and .cse11 .cse2) (and .cse6 .cse10 .cse2) (and .cse1 .cse2 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576) (< |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8544) .cse1 .cse2) (and .cse12 .cse13 .cse0 .cse4))) [2021-12-15 08:57:30,408 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 509) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L507-2(lines 219 553) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L854 garLoopResultBuilder]: At program point L408(lines 399 417) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 246) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L854 garLoopResultBuilder]: At program point L177(lines 176 569) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse1 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (and (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) .cse0 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640)) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:30,409 INFO L854 garLoopResultBuilder]: At program point L144(lines 137 582) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0) .cse0) (and (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) .cse0))) [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 547) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 541 547) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 378) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L344-1(lines 344 378) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 557) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 568) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 579) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 590) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 479) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L411(lines 411 413) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 375) no Hoare annotation was computed. [2021-12-15 08:57:30,409 INFO L854 garLoopResultBuilder]: At program point L213(lines 209 558) the Hoare annotation is: (let ((.cse0 (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3))) (or (and (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) .cse0 .cse1) (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse1))) [2021-12-15 08:57:30,410 INFO L854 garLoopResultBuilder]: At program point L114(lines 113 590) the Hoare annotation is: false [2021-12-15 08:57:30,410 INFO L861 garLoopResultBuilder]: At program point L610(lines 109 611) the Hoare annotation is: true [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 546) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 556) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 567) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 578) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 589) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 322) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L315-2(lines 315 322) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L861 garLoopResultBuilder]: At program point L216(lines 215 556) the Hoare annotation is: true [2021-12-15 08:57:30,410 INFO L854 garLoopResultBuilder]: At program point L183(lines 179 568) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< 8496 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) [2021-12-15 08:57:30,410 INFO L854 garLoopResultBuilder]: At program point L150(lines 146 579) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse0))) [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 373) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L861 garLoopResultBuilder]: At program point L218(lines 217 556) the Hoare annotation is: true [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 566) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 577) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 588) no Hoare annotation was computed. [2021-12-15 08:57:30,410 INFO L858 garLoopResultBuilder]: For program point L615(lines 615 617) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L615-2(lines 615 617) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 519) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 287) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L285-2(lines 219 553) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L451(lines 451 453) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 321) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 357) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L353-2(lines 353 357) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L254(lines 254 264) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 565) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L155(lines 155 576) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 587) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L486(lines 486 488) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 419) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 258) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L854 garLoopResultBuilder]: At program point L222(lines 116 589) the Hoare annotation is: (and (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,411 INFO L854 garLoopResultBuilder]: At program point L189(lines 185 566) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< 8496 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) [2021-12-15 08:57:30,411 INFO L854 garLoopResultBuilder]: At program point L156(lines 152 577) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 463) no Hoare annotation was computed. [2021-12-15 08:57:30,411 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 394) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L861 garLoopResultBuilder]: At program point L620(lines 22 622) the Hoare annotation is: true [2021-12-15 08:57:30,412 INFO L854 garLoopResultBuilder]: At program point L554(lines 110 609) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse7 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse9 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640)) (.cse5 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (.cse8 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse11 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3)) (.cse6 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0))) (.cse10 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656)) (.cse1 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (.cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse12 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse13 (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse4 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3))) (or (and .cse0 .cse1 .cse2 (< 8496 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and .cse3 .cse1 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) .cse4) (and .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse0 .cse2) (and .cse6 .cse3 .cse7 .cse9) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8560) .cse1 .cse2) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528)) (and .cse11 .cse9) (and .cse12 .cse6 .cse13 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse8) (and .cse11 .cse2) (and .cse6 .cse10 .cse2) (and .cse1 .cse2 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576) (< |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8544) .cse1 .cse2) (and .cse12 .cse13 .cse0 .cse4))) [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 564) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 575) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 586) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L489(lines 489 493) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L489-2(lines 489 493) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 526) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 460) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 229) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 563) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 574) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L227-2(lines 227 229) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 585) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 607) no Hoare annotation was computed. [2021-12-15 08:57:30,412 INFO L854 garLoopResultBuilder]: At program point L525(lines 83 621) the Hoare annotation is: false [2021-12-15 08:57:30,413 INFO L854 garLoopResultBuilder]: At program point L195(lines 191 564) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) [2021-12-15 08:57:30,413 INFO L854 garLoopResultBuilder]: At program point L162(lines 158 575) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 98) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L96-2(lines 93 99) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L592(lines 592 606) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L361(lines 361 369) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L593(lines 593 598) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 529) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L593-2(lines 592 606) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L854 garLoopResultBuilder]: At program point L362(lines 338 380) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 562) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 573) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 584) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L858 garLoopResultBuilder]: For program point L429(lines 429 431) no Hoare annotation was computed. [2021-12-15 08:57:30,413 INFO L854 garLoopResultBuilder]: At program point L396(lines 387 419) the Hoare annotation is: (and (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,413 INFO L854 garLoopResultBuilder]: At program point L132(lines 128 585) the Hoare annotation is: (and (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 597) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 366) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L298(lines 298 300) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L298-2(lines 219 553) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 336) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L332-2(lines 219 553) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 561) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 572) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 583) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-12-15 08:57:30,414 INFO L858 garLoopResultBuilder]: For program point L101-1(lines 83 621) no Hoare annotation was computed. [2021-12-15 08:57:30,418 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:30,419 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 08:57:30,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:57:30 BoogieIcfgContainer [2021-12-15 08:57:30,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 08:57:30,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 08:57:30,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 08:57:30,435 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 08:57:30,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:18" (3/4) ... [2021-12-15 08:57:30,437 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 08:57:30,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 08:57:30,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 08:57:30,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 08:57:30,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 08:57:30,502 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 08:57:30,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 08:57:30,502 INFO L158 Benchmark]: Toolchain (without parser) took 12371.90ms. Allocated memory was 86.0MB in the beginning and 331.4MB in the end (delta: 245.4MB). Free memory was 56.4MB in the beginning and 193.8MB in the end (delta: -137.4MB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. [2021-12-15 08:57:30,503 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:57:30,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.21ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 56.2MB in the beginning and 92.0MB in the end (delta: -35.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:57:30,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.97ms. Allocated memory is still 119.5MB. Free memory was 92.0MB in the beginning and 89.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 08:57:30,503 INFO L158 Benchmark]: Boogie Preprocessor took 23.58ms. Allocated memory is still 119.5MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:57:30,503 INFO L158 Benchmark]: RCFGBuilder took 516.84ms. Allocated memory is still 119.5MB. Free memory was 87.0MB in the beginning and 89.7MB in the end (delta: -2.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-15 08:57:30,503 INFO L158 Benchmark]: TraceAbstraction took 11461.85ms. Allocated memory was 119.5MB in the beginning and 331.4MB in the end (delta: 211.8MB). Free memory was 89.1MB in the beginning and 204.3MB in the end (delta: -115.2MB). Peak memory consumption was 219.7MB. Max. memory is 16.1GB. [2021-12-15 08:57:30,505 INFO L158 Benchmark]: Witness Printer took 67.32ms. Allocated memory is still 331.4MB. Free memory was 204.3MB in the beginning and 193.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:57:30,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.21ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 56.2MB in the beginning and 92.0MB in the end (delta: -35.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.97ms. Allocated memory is still 119.5MB. Free memory was 92.0MB in the beginning and 89.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.58ms. Allocated memory is still 119.5MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.84ms. Allocated memory is still 119.5MB. Free memory was 87.0MB in the beginning and 89.7MB in the end (delta: -2.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11461.85ms. Allocated memory was 119.5MB in the beginning and 331.4MB in the end (delta: 211.8MB). Free memory was 89.1MB in the beginning and 204.3MB in the end (delta: -115.2MB). Peak memory consumption was 219.7MB. Max. memory is 16.1GB. * Witness Printer took 67.32ms. Allocated memory is still 331.4MB. Free memory was 204.3MB in the beginning and 193.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 141 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.4s, OverallIterations: 22, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2611 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2611 mSDsluCounter, 8895 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3813 mSDsCounter, 579 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3151 IncrementalHoareTripleChecker+Invalid, 3730 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 579 mSolverCounterUnsat, 5082 mSDtfsCounter, 3151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3461 GetRequests, 3413 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4811occurred in iteration=15, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 2547 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 185 NumberOfFragments, 765 HoareAnnotationTreeSize, 28 FomulaSimplifications, 3767 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 28 FomulaSimplificationsInter, 6895 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 6945 NumberOfCodeBlocks, 6945 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 8407 ConstructedInterpolants, 0 QuantifiedInterpolants, 11445 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3095 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 31 InterpolantComputations, 18 PerfectInterpolantSequences, 31424/31732 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((8496 < s__state && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (s__state <= 8640 && s__s3__tmp__next_state___0 <= 8640) || (s__state <= 8640 && blastFlag == 2) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2) && 8640 <= s__state) || (((s__state <= 8672 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2) && 8640 <= s__state) - InvariantResult [Line: 399]: Loop Invariant Derived loop invariant: ((8496 < s__state && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((8496 < s__state && s__s3__tmp__next_state___0 <= 8576) && 0 == s__hit) && blastFlag == 2) && s__state < 8640 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (blastFlag == 0 && s__state < 8576) || (((s__s3__tmp__next_state___0 <= 8576 && 0 == s__hit) && blastFlag == 2) && s__state < 8576) - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((((((((((((s__s3__tmp__next_state___0 <= 8576 && 0 == s__hit) && blastFlag == 2) && 8496 < s__s3__tmp__next_state___0) && s__state < 8640) || ((0 == s__hit && blastFlag == 2) && s__state == 8512)) || (((s__state == 8448 && 0 == s__hit) && s__s3__tmp__next_state___0 == 3) && blastFlag == 3)) || ((((s__state <= 8640 && !(s__hit == 0)) && 8640 <= s__s3__tmp__next_state___0) && 8640 <= s__state) && s__s3__tmp__next_state___0 <= 8640)) || ((s__state == 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2)) || (((!(s__hit == 0) && s__state == 8448) && 8640 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8640)) || ((s__state == 8560 && 0 == s__hit) && blastFlag == 2)) || ((0 == s__hit && blastFlag == 2) && s__state == 8528)) || (s__state == 3 && s__s3__tmp__next_state___0 <= 8640)) || (((s__state <= 8672 && !(s__hit == 0)) && 8672 <= s__state) && blastFlag == 3)) || ((((s__state <= 8640 && s__s3__tmp__next_state___0 <= 8576) && 0 == s__hit) && blastFlag == 2) && 8640 <= s__state)) || (blastFlag == 0 && s__state == 8464)) || (s__state == 3 && blastFlag == 2)) || ((!(s__hit == 0) && s__state == 8656) && blastFlag == 2)) || (((0 == s__hit && blastFlag == 2) && s__state < 8576) && s__s3__tmp__next_state___0 < 8576)) || (s__state == 8496 && blastFlag == 1)) || ((s__state == 8544 && 0 == s__hit) && blastFlag == 2)) || (((s__state <= 8672 && 8672 <= s__state) && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 3) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((s__s3__tmp__next_state___0 <= 8576 && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: ((((s__state == 8448 && s__s3__tmp__next_state___0 <= 8576) && 0 == s__hit) && blastFlag == 2) || (((!(s__hit == 0) && s__state == 8448) && 8640 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8640)) || (((s__state == 8448 && 0 == s__hit) && s__s3__tmp__next_state___0 == 3) && blastFlag == 3) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((((8496 < s__state && s__s3__tmp__next_state___0 <= 8576) && 0 == s__hit) && blastFlag == 2) && 8496 < s__s3__tmp__next_state___0) && s__state < 8640 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: ((8496 < s__state && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && 8672 <= s__state) && blastFlag == 3) || ((8672 <= s__state && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 3) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((s__s3__tmp__next_state___0 <= 8576 && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: ((8496 < s__state && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((8496 < s__state && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 623]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: ((8496 < s__state && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((((8496 < s__state && s__s3__tmp__next_state___0 <= 8576) && 0 == s__hit) && blastFlag == 2) && 8496 < s__s3__tmp__next_state___0) && s__state < 8640 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((s__s3__tmp__next_state___0 <= 8576 && 0 == s__hit) && blastFlag == 2) && s__state < 8576) || (blastFlag == 1 && s__state < 8576) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((((s__state <= 8640 && !(s__hit == 0)) && 8640 <= s__state) && 8640 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8640) || ((((s__state < 8656 && s__s3__tmp__next_state___0 <= 8576) && 0 == s__hit) && blastFlag == 2) && 8640 <= s__state) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((8496 < s__state && 0 == s__hit) && blastFlag == 2) && s__state < 8576 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: (((((((((((((((((((s__s3__tmp__next_state___0 <= 8576 && 0 == s__hit) && blastFlag == 2) && 8496 < s__s3__tmp__next_state___0) && s__state < 8640) || ((0 == s__hit && blastFlag == 2) && s__state == 8512)) || (((s__state == 8448 && 0 == s__hit) && s__s3__tmp__next_state___0 == 3) && blastFlag == 3)) || ((((s__state <= 8640 && !(s__hit == 0)) && 8640 <= s__s3__tmp__next_state___0) && 8640 <= s__state) && s__s3__tmp__next_state___0 <= 8640)) || ((s__state == 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2)) || (((!(s__hit == 0) && s__state == 8448) && 8640 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8640)) || ((s__state == 8560 && 0 == s__hit) && blastFlag == 2)) || ((0 == s__hit && blastFlag == 2) && s__state == 8528)) || (s__state == 3 && s__s3__tmp__next_state___0 <= 8640)) || (((s__state <= 8672 && !(s__hit == 0)) && 8672 <= s__state) && blastFlag == 3)) || ((((s__state <= 8640 && s__s3__tmp__next_state___0 <= 8576) && 0 == s__hit) && blastFlag == 2) && 8640 <= s__state)) || (s__state == 3 && blastFlag == 2)) || ((!(s__hit == 0) && s__state == 8656) && blastFlag == 2)) || (((0 == s__hit && blastFlag == 2) && s__state < 8576) && s__s3__tmp__next_state___0 < 8576)) || (s__state == 8496 && blastFlag == 1)) || ((s__state == 8544 && 0 == s__hit) && blastFlag == 2)) || (((s__state <= 8672 && 8672 <= s__state) && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 3) RESULT: Ultimate proved your program to be correct! [2021-12-15 08:57:30,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE