./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_clnt_1.cil-1.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 0237d7665f4c4183d0858d7577c1caaad788a36b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 20:12:09,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:12:09,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:12:09,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:12:09,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:12:09,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:12:09,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:12:09,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:12:09,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:12:09,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:12:09,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:12:09,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:12:09,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:12:09,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:12:09,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:12:09,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:12:09,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:12:09,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:12:09,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:12:09,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:12:09,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:12:09,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:12:09,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:12:09,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:12:09,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:12:09,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:12:09,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:12:09,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:12:09,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:12:09,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:12:09,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:12:09,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:12:09,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:12:09,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:12:09,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:12:09,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:12:09,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:12:09,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:12:09,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:12:09,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:12:09,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:12:09,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:12:09,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:12:09,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:12:09,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:12:09,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:12:09,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:12:09,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:12:09,495 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:12:09,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:12:09,495 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:12:09,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:12:09,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:12:09,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:12:09,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:12:09,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:12:09,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:12:09,496 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:12:09,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:12:09,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:12:09,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:12:09,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:12:09,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:12:09,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:12:09,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:12:09,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:12:09,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:12:09,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:12:09,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:12:09,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:12:09,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:12:09,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:12:09,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0237d7665f4c4183d0858d7577c1caaad788a36b [2021-08-25 20:12:09,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:12:09,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:12:09,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:12:09,762 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:12:09,763 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:12:09,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2021-08-25 20:12:09,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910249884/d87a89d597ca4bd58a9cb95fefe15623/FLAG0e47603ce [2021-08-25 20:12:10,216 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:12:10,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2021-08-25 20:12:10,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910249884/d87a89d597ca4bd58a9cb95fefe15623/FLAG0e47603ce [2021-08-25 20:12:10,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910249884/d87a89d597ca4bd58a9cb95fefe15623 [2021-08-25 20:12:10,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:12:10,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:12:10,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:12:10,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:12:10,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:12:10,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cba33c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10, skipping insertion in model container [2021-08-25 20:12:10,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:12:10,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:12:10,503 WARN L228 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_clnt_1.cil-1.c[34967,34980] [2021-08-25 20:12:10,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:12:10,524 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:12:10,569 WARN L228 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_clnt_1.cil-1.c[34967,34980] [2021-08-25 20:12:10,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:12:10,590 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:12:10,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10 WrapperNode [2021-08-25 20:12:10,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:12:10,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:12:10,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:12:10,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:12:10,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:12:10,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:12:10,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:12:10,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:12:10,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:12:10,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:12:10,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:12:10,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:12:10,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (1/1) ... [2021-08-25 20:12:10,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:12:10,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:10,674 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) [2021-08-25 20:12:10,704 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 [2021-08-25 20:12:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:12:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:12:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:12:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:12:10,875 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-25 20:12:11,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-25 20:12:11,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-25 20:12:11,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:12:11,226 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 20:12:11,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:11 BoogieIcfgContainer [2021-08-25 20:12:11,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:12:11,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:12:11,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:12:11,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:12:11,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:12:10" (1/3) ... [2021-08-25 20:12:11,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171c9f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:12:11, skipping insertion in model container [2021-08-25 20:12:11,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:10" (2/3) ... [2021-08-25 20:12:11,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171c9f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:12:11, skipping insertion in model container [2021-08-25 20:12:11,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:11" (3/3) ... [2021-08-25 20:12:11,233 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2021-08-25 20:12:11,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:12:11,239 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:12:11,271 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:12:11,275 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-25 20:12:11,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:12:11,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 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) [2021-08-25 20:12:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-25 20:12:11,295 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:11,296 INFO L512 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] [2021-08-25 20:12:11,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:11,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:11,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1457700990, now seen corresponding path program 1 times [2021-08-25 20:12:11,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:11,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115147601] [2021-08-25 20:12:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:11,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:12:11,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:11,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115147601] [2021-08-25 20:12:11,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115147601] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:11,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:11,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:11,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963459345] [2021-08-25 20:12:11,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:11,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:11,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:11,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:11,490 INFO L87 Difference]: Start difference. First operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 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 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-08-25 20:12:11,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:11,568 INFO L93 Difference]: Finished difference Result 363 states and 617 transitions. [2021-08-25 20:12:11,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-08-25 20:12:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:11,576 INFO L225 Difference]: With dead ends: 363 [2021-08-25 20:12:11,576 INFO L226 Difference]: Without dead ends: 211 [2021-08-25 20:12:11,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:11,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-08-25 20:12:11,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-08-25 20:12:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.5) internal successors, (315), 210 states have internal predecessors, (315), 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) [2021-08-25 20:12:11,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 315 transitions. [2021-08-25 20:12:11,619 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 315 transitions. Word has length 24 [2021-08-25 20:12:11,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:11,619 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 315 transitions. [2021-08-25 20:12:11,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-08-25 20:12:11,619 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 315 transitions. [2021-08-25 20:12:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-25 20:12:11,620 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:11,620 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-25 20:12:11,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:12:11,621 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:11,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:11,621 INFO L82 PathProgramCache]: Analyzing trace with hash 152202379, now seen corresponding path program 1 times [2021-08-25 20:12:11,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:11,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395270384] [2021-08-25 20:12:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:11,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:12:11,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:11,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395270384] [2021-08-25 20:12:11,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395270384] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:11,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:11,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:11,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276058737] [2021-08-25 20:12:11,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:11,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:11,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:11,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:11,681 INFO L87 Difference]: Start difference. First operand 211 states and 315 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-08-25 20:12:11,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:11,790 INFO L93 Difference]: Finished difference Result 340 states and 513 transitions. [2021-08-25 20:12:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:11,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-08-25 20:12:11,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:11,791 INFO L225 Difference]: With dead ends: 340 [2021-08-25 20:12:11,792 INFO L226 Difference]: Without dead ends: 236 [2021-08-25 20:12:11,792 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:11,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-08-25 20:12:11,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 228. [2021-08-25 20:12:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.4845814977973568) internal successors, (337), 227 states have internal predecessors, (337), 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) [2021-08-25 20:12:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 337 transitions. [2021-08-25 20:12:11,802 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 337 transitions. Word has length 38 [2021-08-25 20:12:11,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:11,803 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 337 transitions. [2021-08-25 20:12:11,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-08-25 20:12:11,803 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 337 transitions. [2021-08-25 20:12:11,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-25 20:12:11,804 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:11,804 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:11,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 20:12:11,805 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:11,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1281794544, now seen corresponding path program 1 times [2021-08-25 20:12:11,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:11,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740415151] [2021-08-25 20:12:11,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:11,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-25 20:12:11,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:11,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740415151] [2021-08-25 20:12:11,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740415151] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:11,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:11,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:11,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623727735] [2021-08-25 20:12:11,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:11,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:11,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:11,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:11,869 INFO L87 Difference]: Start difference. First operand 228 states and 337 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-08-25 20:12:12,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:12,089 INFO L93 Difference]: Finished difference Result 551 states and 841 transitions. [2021-08-25 20:12:12,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:12,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 55 [2021-08-25 20:12:12,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:12,106 INFO L225 Difference]: With dead ends: 551 [2021-08-25 20:12:12,106 INFO L226 Difference]: Without dead ends: 328 [2021-08-25 20:12:12,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-08-25 20:12:12,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 310. [2021-08-25 20:12:12,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.4142394822006472) internal successors, (437), 309 states have internal predecessors, (437), 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) [2021-08-25 20:12:12,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions. [2021-08-25 20:12:12,116 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 55 [2021-08-25 20:12:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:12,116 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 437 transitions. [2021-08-25 20:12:12,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-08-25 20:12:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions. [2021-08-25 20:12:12,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-25 20:12:12,118 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:12,118 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:12,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 20:12:12,119 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:12,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:12,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1258017753, now seen corresponding path program 1 times [2021-08-25 20:12:12,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:12,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025826783] [2021-08-25 20:12:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:12,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-25 20:12:12,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:12,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025826783] [2021-08-25 20:12:12,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025826783] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:12,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:12,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:12,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991317163] [2021-08-25 20:12:12,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:12,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:12,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:12,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,170 INFO L87 Difference]: Start difference. First operand 310 states and 437 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-08-25 20:12:12,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:12,293 INFO L93 Difference]: Finished difference Result 659 states and 942 transitions. [2021-08-25 20:12:12,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:12,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 68 [2021-08-25 20:12:12,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:12,296 INFO L225 Difference]: With dead ends: 659 [2021-08-25 20:12:12,296 INFO L226 Difference]: Without dead ends: 356 [2021-08-25 20:12:12,296 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-08-25 20:12:12,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 348. [2021-08-25 20:12:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.3976945244956773) internal successors, (485), 347 states have internal predecessors, (485), 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) [2021-08-25 20:12:12,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 485 transitions. [2021-08-25 20:12:12,303 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 485 transitions. Word has length 68 [2021-08-25 20:12:12,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:12,303 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 485 transitions. [2021-08-25 20:12:12,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-08-25 20:12:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 485 transitions. [2021-08-25 20:12:12,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-08-25 20:12:12,306 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:12,306 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 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] [2021-08-25 20:12:12,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 20:12:12,306 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:12,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:12,307 INFO L82 PathProgramCache]: Analyzing trace with hash 181274982, now seen corresponding path program 1 times [2021-08-25 20:12:12,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:12,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665628628] [2021-08-25 20:12:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:12,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-25 20:12:12,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:12,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665628628] [2021-08-25 20:12:12,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665628628] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:12,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:12,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:12,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329497437] [2021-08-25 20:12:12,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:12,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:12,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:12,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,358 INFO L87 Difference]: Start difference. First operand 348 states and 485 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-08-25 20:12:12,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:12,502 INFO L93 Difference]: Finished difference Result 828 states and 1180 transitions. [2021-08-25 20:12:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:12,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 [2021-08-25 20:12:12,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:12,505 INFO L225 Difference]: With dead ends: 828 [2021-08-25 20:12:12,505 INFO L226 Difference]: Without dead ends: 485 [2021-08-25 20:12:12,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2021-08-25 20:12:12,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 459. [2021-08-25 20:12:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.4323144104803494) internal successors, (656), 458 states have internal predecessors, (656), 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) [2021-08-25 20:12:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 656 transitions. [2021-08-25 20:12:12,517 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 656 transitions. Word has length 81 [2021-08-25 20:12:12,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:12,518 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 656 transitions. [2021-08-25 20:12:12,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-08-25 20:12:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 656 transitions. [2021-08-25 20:12:12,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-08-25 20:12:12,520 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:12,520 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:12,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 20:12:12,520 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:12,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:12,521 INFO L82 PathProgramCache]: Analyzing trace with hash -901961809, now seen corresponding path program 1 times [2021-08-25 20:12:12,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:12,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253276319] [2021-08-25 20:12:12,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:12,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-08-25 20:12:12,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:12,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253276319] [2021-08-25 20:12:12,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253276319] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:12,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:12,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:12,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368975425] [2021-08-25 20:12:12,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:12,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:12,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:12,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,564 INFO L87 Difference]: Start difference. First operand 459 states and 656 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-08-25 20:12:12,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:12,674 INFO L93 Difference]: Finished difference Result 926 states and 1341 transitions. [2021-08-25 20:12:12,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:12,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 84 [2021-08-25 20:12:12,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:12,676 INFO L225 Difference]: With dead ends: 926 [2021-08-25 20:12:12,676 INFO L226 Difference]: Without dead ends: 507 [2021-08-25 20:12:12,676 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-08-25 20:12:12,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 501. [2021-08-25 20:12:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.416) internal successors, (708), 500 states have internal predecessors, (708), 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) [2021-08-25 20:12:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 708 transitions. [2021-08-25 20:12:12,695 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 708 transitions. Word has length 84 [2021-08-25 20:12:12,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:12,695 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 708 transitions. [2021-08-25 20:12:12,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-08-25 20:12:12,695 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 708 transitions. [2021-08-25 20:12:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-08-25 20:12:12,696 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:12,696 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:12,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 20:12:12,697 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:12,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:12,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1810291289, now seen corresponding path program 1 times [2021-08-25 20:12:12,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:12,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59356645] [2021-08-25 20:12:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:12,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-25 20:12:12,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:12,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59356645] [2021-08-25 20:12:12,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59356645] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:12,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:12,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:12,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93287736] [2021-08-25 20:12:12,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:12,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:12,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:12,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,739 INFO L87 Difference]: Start difference. First operand 501 states and 708 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-08-25 20:12:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:12,764 INFO L93 Difference]: Finished difference Result 980 states and 1398 transitions. [2021-08-25 20:12:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:12,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 104 [2021-08-25 20:12:12,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:12,767 INFO L225 Difference]: With dead ends: 980 [2021-08-25 20:12:12,767 INFO L226 Difference]: Without dead ends: 739 [2021-08-25 20:12:12,768 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2021-08-25 20:12:12,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2021-08-25 20:12:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 738 states have (on average 1.4173441734417345) internal successors, (1046), 738 states have internal predecessors, (1046), 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) [2021-08-25 20:12:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1046 transitions. [2021-08-25 20:12:12,779 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1046 transitions. Word has length 104 [2021-08-25 20:12:12,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:12,780 INFO L470 AbstractCegarLoop]: Abstraction has 739 states and 1046 transitions. [2021-08-25 20:12:12,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-08-25 20:12:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1046 transitions. [2021-08-25 20:12:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-08-25 20:12:12,781 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:12,781 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:12,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 20:12:12,782 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:12,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:12,782 INFO L82 PathProgramCache]: Analyzing trace with hash 151283369, now seen corresponding path program 1 times [2021-08-25 20:12:12,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:12,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187468245] [2021-08-25 20:12:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:12,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-08-25 20:12:12,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:12,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187468245] [2021-08-25 20:12:12,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187468245] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:12,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:12,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:12,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437412264] [2021-08-25 20:12:12,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:12,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:12,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:12,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,819 INFO L87 Difference]: Start difference. First operand 739 states and 1046 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-08-25 20:12:12,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:12,844 INFO L93 Difference]: Finished difference Result 1239 states and 1758 transitions. [2021-08-25 20:12:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:12,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 104 [2021-08-25 20:12:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:12,848 INFO L225 Difference]: With dead ends: 1239 [2021-08-25 20:12:12,848 INFO L226 Difference]: Without dead ends: 760 [2021-08-25 20:12:12,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2021-08-25 20:12:12,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2021-08-25 20:12:12,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 1.4137022397891963) internal successors, (1073), 759 states have internal predecessors, (1073), 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) [2021-08-25 20:12:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1073 transitions. [2021-08-25 20:12:12,868 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1073 transitions. Word has length 104 [2021-08-25 20:12:12,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:12,868 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 1073 transitions. [2021-08-25 20:12:12,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-08-25 20:12:12,869 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1073 transitions. [2021-08-25 20:12:12,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-08-25 20:12:12,870 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:12,870 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:12,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 20:12:12,870 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:12,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:12,871 INFO L82 PathProgramCache]: Analyzing trace with hash -492994255, now seen corresponding path program 1 times [2021-08-25 20:12:12,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:12,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072440559] [2021-08-25 20:12:12,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:12,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-08-25 20:12:12,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:12,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072440559] [2021-08-25 20:12:12,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072440559] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:12,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:12,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:12,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718160877] [2021-08-25 20:12:12,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:12,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:12,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:12,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,904 INFO L87 Difference]: Start difference. First operand 760 states and 1073 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) [2021-08-25 20:12:12,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:12,936 INFO L93 Difference]: Finished difference Result 1001 states and 1419 transitions. [2021-08-25 20:12:12,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:12,937 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 106 [2021-08-25 20:12:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:12,940 INFO L225 Difference]: With dead ends: 1001 [2021-08-25 20:12:12,941 INFO L226 Difference]: Without dead ends: 999 [2021-08-25 20:12:12,943 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:12,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2021-08-25 20:12:12,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 999. [2021-08-25 20:12:12,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 998 states have (on average 1.4198396793587174) internal successors, (1417), 998 states have internal predecessors, (1417), 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) [2021-08-25 20:12:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1417 transitions. [2021-08-25 20:12:12,961 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1417 transitions. Word has length 106 [2021-08-25 20:12:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:12,962 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1417 transitions. [2021-08-25 20:12:12,962 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) [2021-08-25 20:12:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1417 transitions. [2021-08-25 20:12:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-08-25 20:12:12,964 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:12,964 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:12,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 20:12:12,965 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:12,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:12,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1913560025, now seen corresponding path program 1 times [2021-08-25 20:12:12,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:12,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52800317] [2021-08-25 20:12:12,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:12,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-08-25 20:12:13,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:13,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52800317] [2021-08-25 20:12:13,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52800317] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:13,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:13,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:13,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524897926] [2021-08-25 20:12:13,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:13,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:13,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:13,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,019 INFO L87 Difference]: Start difference. First operand 999 states and 1417 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) [2021-08-25 20:12:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:13,111 INFO L93 Difference]: Finished difference Result 2064 states and 2956 transitions. [2021-08-25 20:12:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:13,111 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 131 [2021-08-25 20:12:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:13,114 INFO L225 Difference]: With dead ends: 2064 [2021-08-25 20:12:13,114 INFO L226 Difference]: Without dead ends: 1105 [2021-08-25 20:12:13,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-08-25 20:12:13,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1091. [2021-08-25 20:12:13,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1090 states have (on average 1.4027522935779817) internal successors, (1529), 1090 states have internal predecessors, (1529), 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) [2021-08-25 20:12:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1529 transitions. [2021-08-25 20:12:13,131 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1529 transitions. Word has length 131 [2021-08-25 20:12:13,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:13,131 INFO L470 AbstractCegarLoop]: Abstraction has 1091 states and 1529 transitions. [2021-08-25 20:12:13,131 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) [2021-08-25 20:12:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1529 transitions. [2021-08-25 20:12:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-08-25 20:12:13,133 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:13,133 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:13,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 20:12:13,133 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:13,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:13,134 INFO L82 PathProgramCache]: Analyzing trace with hash 296450083, now seen corresponding path program 1 times [2021-08-25 20:12:13,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:13,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320610645] [2021-08-25 20:12:13,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:13,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-08-25 20:12:13,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:13,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320610645] [2021-08-25 20:12:13,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320610645] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:13,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:13,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:13,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886904995] [2021-08-25 20:12:13,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:13,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:13,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:13,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,171 INFO L87 Difference]: Start difference. First operand 1091 states and 1529 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-08-25 20:12:13,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:13,294 INFO L93 Difference]: Finished difference Result 2346 states and 3350 transitions. [2021-08-25 20:12:13,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:13,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 152 [2021-08-25 20:12:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:13,298 INFO L225 Difference]: With dead ends: 2346 [2021-08-25 20:12:13,298 INFO L226 Difference]: Without dead ends: 1287 [2021-08-25 20:12:13,299 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2021-08-25 20:12:13,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1247. [2021-08-25 20:12:13,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1246 states have (on average 1.4069020866773676) internal successors, (1753), 1246 states have internal predecessors, (1753), 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) [2021-08-25 20:12:13,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1753 transitions. [2021-08-25 20:12:13,317 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1753 transitions. Word has length 152 [2021-08-25 20:12:13,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:13,317 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 1753 transitions. [2021-08-25 20:12:13,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-08-25 20:12:13,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1753 transitions. [2021-08-25 20:12:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-08-25 20:12:13,320 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:13,320 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:13,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-25 20:12:13,320 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:13,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2080513012, now seen corresponding path program 1 times [2021-08-25 20:12:13,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:13,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206203300] [2021-08-25 20:12:13,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:13,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-08-25 20:12:13,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:13,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206203300] [2021-08-25 20:12:13,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206203300] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:13,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:13,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:13,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777181246] [2021-08-25 20:12:13,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:13,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:13,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:13,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,359 INFO L87 Difference]: Start difference. First operand 1247 states and 1753 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-08-25 20:12:13,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:13,453 INFO L93 Difference]: Finished difference Result 2574 states and 3602 transitions. [2021-08-25 20:12:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:13,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 188 [2021-08-25 20:12:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:13,458 INFO L225 Difference]: With dead ends: 2574 [2021-08-25 20:12:13,458 INFO L226 Difference]: Without dead ends: 1367 [2021-08-25 20:12:13,459 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2021-08-25 20:12:13,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1359. [2021-08-25 20:12:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1358 states have (on average 1.3880706921944035) internal successors, (1885), 1358 states have internal predecessors, (1885), 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) [2021-08-25 20:12:13,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1885 transitions. [2021-08-25 20:12:13,478 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1885 transitions. Word has length 188 [2021-08-25 20:12:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:13,479 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 1885 transitions. [2021-08-25 20:12:13,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-08-25 20:12:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1885 transitions. [2021-08-25 20:12:13,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-08-25 20:12:13,482 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:13,482 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:13,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 20:12:13,482 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:13,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:13,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1653754506, now seen corresponding path program 1 times [2021-08-25 20:12:13,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:13,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029837700] [2021-08-25 20:12:13,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:13,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:13,558 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-08-25 20:12:13,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:13,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029837700] [2021-08-25 20:12:13,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029837700] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:13,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:13,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:13,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829538183] [2021-08-25 20:12:13,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:13,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:13,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:13,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,560 INFO L87 Difference]: Start difference. First operand 1359 states and 1885 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-08-25 20:12:13,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:13,667 INFO L93 Difference]: Finished difference Result 2814 states and 3902 transitions. [2021-08-25 20:12:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:13,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 188 [2021-08-25 20:12:13,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:13,672 INFO L225 Difference]: With dead ends: 2814 [2021-08-25 20:12:13,673 INFO L226 Difference]: Without dead ends: 1495 [2021-08-25 20:12:13,674 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2021-08-25 20:12:13,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1483. [2021-08-25 20:12:13,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1482 states have (on average 1.3690958164642375) internal successors, (2029), 1482 states have internal predecessors, (2029), 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) [2021-08-25 20:12:13,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2029 transitions. [2021-08-25 20:12:13,697 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2029 transitions. Word has length 188 [2021-08-25 20:12:13,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:13,697 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 2029 transitions. [2021-08-25 20:12:13,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-08-25 20:12:13,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2029 transitions. [2021-08-25 20:12:13,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-08-25 20:12:13,700 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:13,700 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:13,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-25 20:12:13,700 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:13,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:13,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1229348372, now seen corresponding path program 1 times [2021-08-25 20:12:13,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:13,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315678079] [2021-08-25 20:12:13,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:13,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2021-08-25 20:12:13,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:13,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315678079] [2021-08-25 20:12:13,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315678079] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:13,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:13,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:13,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119712510] [2021-08-25 20:12:13,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:13,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:13,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:13,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,735 INFO L87 Difference]: Start difference. First operand 1483 states and 2029 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) [2021-08-25 20:12:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:13,764 INFO L93 Difference]: Finished difference Result 4365 states and 5987 transitions. [2021-08-25 20:12:13,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:13,765 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 218 [2021-08-25 20:12:13,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:13,772 INFO L225 Difference]: With dead ends: 4365 [2021-08-25 20:12:13,773 INFO L226 Difference]: Without dead ends: 2922 [2021-08-25 20:12:13,775 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2021-08-25 20:12:13,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2920. [2021-08-25 20:12:13,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2919 states have (on average 1.3706748886605002) internal successors, (4001), 2919 states have internal predecessors, (4001), 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) [2021-08-25 20:12:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4001 transitions. [2021-08-25 20:12:13,826 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4001 transitions. Word has length 218 [2021-08-25 20:12:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:13,826 INFO L470 AbstractCegarLoop]: Abstraction has 2920 states and 4001 transitions. [2021-08-25 20:12:13,826 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) [2021-08-25 20:12:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4001 transitions. [2021-08-25 20:12:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-08-25 20:12:13,831 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:13,832 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:13,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-25 20:12:13,832 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:13,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:13,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1790048150, now seen corresponding path program 1 times [2021-08-25 20:12:13,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:13,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261600826] [2021-08-25 20:12:13,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:13,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-08-25 20:12:13,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:13,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261600826] [2021-08-25 20:12:13,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261600826] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:13,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:13,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:13,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825284113] [2021-08-25 20:12:13,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:13,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:13,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:13,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:13,877 INFO L87 Difference]: Start difference. First operand 2920 states and 4001 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-08-25 20:12:14,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:14,005 INFO L93 Difference]: Finished difference Result 6100 states and 8366 transitions. [2021-08-25 20:12:14,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:14,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 218 [2021-08-25 20:12:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:14,017 INFO L225 Difference]: With dead ends: 6100 [2021-08-25 20:12:14,017 INFO L226 Difference]: Without dead ends: 3220 [2021-08-25 20:12:14,022 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:14,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2021-08-25 20:12:14,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3204. [2021-08-25 20:12:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3204 states, 3203 states have (on average 1.3502965969403684) internal successors, (4325), 3203 states have internal predecessors, (4325), 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) [2021-08-25 20:12:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 4325 transitions. [2021-08-25 20:12:14,080 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 4325 transitions. Word has length 218 [2021-08-25 20:12:14,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:14,081 INFO L470 AbstractCegarLoop]: Abstraction has 3204 states and 4325 transitions. [2021-08-25 20:12:14,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-08-25 20:12:14,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 4325 transitions. [2021-08-25 20:12:14,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-08-25 20:12:14,085 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:14,086 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:14,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-25 20:12:14,086 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:14,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:14,086 INFO L82 PathProgramCache]: Analyzing trace with hash 678419774, now seen corresponding path program 1 times [2021-08-25 20:12:14,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:14,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088477451] [2021-08-25 20:12:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:14,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-08-25 20:12:14,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:14,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088477451] [2021-08-25 20:12:14,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088477451] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:14,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:14,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:14,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808972938] [2021-08-25 20:12:14,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:14,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:14,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:14,133 INFO L87 Difference]: Start difference. First operand 3204 states and 4325 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) [2021-08-25 20:12:14,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:14,287 INFO L93 Difference]: Finished difference Result 6516 states and 8798 transitions. [2021-08-25 20:12:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:14,288 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 242 [2021-08-25 20:12:14,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:14,299 INFO L225 Difference]: With dead ends: 6516 [2021-08-25 20:12:14,300 INFO L226 Difference]: Without dead ends: 3352 [2021-08-25 20:12:14,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:14,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3352 states. [2021-08-25 20:12:14,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3352 to 3336. [2021-08-25 20:12:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3335 states have (on average 1.3424287856071964) internal successors, (4477), 3335 states have internal predecessors, (4477), 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) [2021-08-25 20:12:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4477 transitions. [2021-08-25 20:12:14,379 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4477 transitions. Word has length 242 [2021-08-25 20:12:14,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:14,380 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4477 transitions. [2021-08-25 20:12:14,380 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) [2021-08-25 20:12:14,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4477 transitions. [2021-08-25 20:12:14,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-08-25 20:12:14,387 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:14,388 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:14,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 20:12:14,388 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:14,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:14,389 INFO L82 PathProgramCache]: Analyzing trace with hash -101941725, now seen corresponding path program 1 times [2021-08-25 20:12:14,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:14,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341043818] [2021-08-25 20:12:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:14,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-08-25 20:12:14,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:14,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341043818] [2021-08-25 20:12:14,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341043818] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:14,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:14,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:14,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602798053] [2021-08-25 20:12:14,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:14,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:14,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:14,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:14,448 INFO L87 Difference]: Start difference. First operand 3336 states and 4477 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-08-25 20:12:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:14,649 INFO L93 Difference]: Finished difference Result 7032 states and 9578 transitions. [2021-08-25 20:12:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:14,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 [2021-08-25 20:12:14,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:14,664 INFO L225 Difference]: With dead ends: 7032 [2021-08-25 20:12:14,664 INFO L226 Difference]: Without dead ends: 3736 [2021-08-25 20:12:14,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:14,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2021-08-25 20:12:14,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3648. [2021-08-25 20:12:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3647 states have (on average 1.3284891691801481) internal successors, (4845), 3647 states have internal predecessors, (4845), 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) [2021-08-25 20:12:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 4845 transitions. [2021-08-25 20:12:14,763 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 4845 transitions. Word has length 253 [2021-08-25 20:12:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:14,763 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 4845 transitions. [2021-08-25 20:12:14,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-08-25 20:12:14,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 4845 transitions. [2021-08-25 20:12:14,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-08-25 20:12:14,770 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:14,770 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:14,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-25 20:12:14,770 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:14,771 INFO L82 PathProgramCache]: Analyzing trace with hash 324455461, now seen corresponding path program 1 times [2021-08-25 20:12:14,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:14,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373689971] [2021-08-25 20:12:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:14,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-08-25 20:12:14,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:14,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373689971] [2021-08-25 20:12:14,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373689971] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:14,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:14,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:14,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433201808] [2021-08-25 20:12:14,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:14,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:14,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:14,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:14,817 INFO L87 Difference]: Start difference. First operand 3648 states and 4845 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-08-25 20:12:14,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:14,975 INFO L93 Difference]: Finished difference Result 7664 states and 10122 transitions. [2021-08-25 20:12:14,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:14,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 267 [2021-08-25 20:12:14,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:14,999 INFO L225 Difference]: With dead ends: 7664 [2021-08-25 20:12:15,000 INFO L226 Difference]: Without dead ends: 4056 [2021-08-25 20:12:15,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:15,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2021-08-25 20:12:15,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 3768. [2021-08-25 20:12:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3767 states have (on average 1.3243960711441465) internal successors, (4989), 3767 states have internal predecessors, (4989), 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) [2021-08-25 20:12:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4989 transitions. [2021-08-25 20:12:15,101 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4989 transitions. Word has length 267 [2021-08-25 20:12:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:15,101 INFO L470 AbstractCegarLoop]: Abstraction has 3768 states and 4989 transitions. [2021-08-25 20:12:15,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-08-25 20:12:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4989 transitions. [2021-08-25 20:12:15,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-08-25 20:12:15,109 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:15,109 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:15,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-25 20:12:15,109 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:15,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:15,110 INFO L82 PathProgramCache]: Analyzing trace with hash 842255411, now seen corresponding path program 1 times [2021-08-25 20:12:15,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:15,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927267443] [2021-08-25 20:12:15,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:15,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2021-08-25 20:12:15,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:15,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927267443] [2021-08-25 20:12:15,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927267443] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:15,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:15,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:15,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025732068] [2021-08-25 20:12:15,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:15,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:15,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:15,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:15,183 INFO L87 Difference]: Start difference. First operand 3768 states and 4989 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-08-25 20:12:15,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:15,249 INFO L93 Difference]: Finished difference Result 10720 states and 14279 transitions. [2021-08-25 20:12:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:15,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 268 [2021-08-25 20:12:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:15,263 INFO L225 Difference]: With dead ends: 10720 [2021-08-25 20:12:15,263 INFO L226 Difference]: Without dead ends: 6992 [2021-08-25 20:12:15,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6992 states. [2021-08-25 20:12:15,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6992 to 6990. [2021-08-25 20:12:15,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6990 states, 6989 states have (on average 1.3325225354127914) internal successors, (9313), 6989 states have internal predecessors, (9313), 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) [2021-08-25 20:12:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6990 states to 6990 states and 9313 transitions. [2021-08-25 20:12:15,446 INFO L78 Accepts]: Start accepts. Automaton has 6990 states and 9313 transitions. Word has length 268 [2021-08-25 20:12:15,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:15,447 INFO L470 AbstractCegarLoop]: Abstraction has 6990 states and 9313 transitions. [2021-08-25 20:12:15,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-08-25 20:12:15,447 INFO L276 IsEmpty]: Start isEmpty. Operand 6990 states and 9313 transitions. [2021-08-25 20:12:15,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-08-25 20:12:15,456 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:15,456 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:15,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-25 20:12:15,457 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:15,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1556363552, now seen corresponding path program 1 times [2021-08-25 20:12:15,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:15,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429353879] [2021-08-25 20:12:15,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:15,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:15,504 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2021-08-25 20:12:15,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:15,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429353879] [2021-08-25 20:12:15,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429353879] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:15,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:15,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:15,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731002040] [2021-08-25 20:12:15,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:15,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:15,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:15,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:15,506 INFO L87 Difference]: Start difference. First operand 6990 states and 9313 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-08-25 20:12:15,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:15,690 INFO L93 Difference]: Finished difference Result 13948 states and 18570 transitions. [2021-08-25 20:12:15,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:15,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 269 [2021-08-25 20:12:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:15,704 INFO L225 Difference]: With dead ends: 13948 [2021-08-25 20:12:15,704 INFO L226 Difference]: Without dead ends: 6998 [2021-08-25 20:12:15,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:15,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6998 states. [2021-08-25 20:12:15,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6998 to 6966. [2021-08-25 20:12:15,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6966 states, 6965 states have (on average 1.3061019382627423) internal successors, (9097), 6965 states have internal predecessors, (9097), 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) [2021-08-25 20:12:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6966 states to 6966 states and 9097 transitions. [2021-08-25 20:12:15,865 INFO L78 Accepts]: Start accepts. Automaton has 6966 states and 9097 transitions. Word has length 269 [2021-08-25 20:12:15,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:15,866 INFO L470 AbstractCegarLoop]: Abstraction has 6966 states and 9097 transitions. [2021-08-25 20:12:15,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-08-25 20:12:15,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6966 states and 9097 transitions. [2021-08-25 20:12:15,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-08-25 20:12:15,875 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:15,875 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:15,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-25 20:12:15,876 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:15,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:15,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1277617296, now seen corresponding path program 1 times [2021-08-25 20:12:15,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:15,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194051176] [2021-08-25 20:12:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:15,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-08-25 20:12:15,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:15,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194051176] [2021-08-25 20:12:15,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194051176] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:15,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455495842] [2021-08-25 20:12:15,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:15,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:15,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:15,925 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) [2021-08-25 20:12:15,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 20:12:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:16,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:16,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-08-25 20:12:16,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455495842] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:16,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:16,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:16,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930658156] [2021-08-25 20:12:16,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:16,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:16,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:16,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:16,893 INFO L87 Difference]: Start difference. First operand 6966 states and 9097 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2021-08-25 20:12:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:17,277 INFO L93 Difference]: Finished difference Result 13822 states and 18051 transitions. [2021-08-25 20:12:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-25 20:12:17,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 292 [2021-08-25 20:12:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:17,297 INFO L225 Difference]: With dead ends: 13822 [2021-08-25 20:12:17,298 INFO L226 Difference]: Without dead ends: 10438 [2021-08-25 20:12:17,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10438 states. [2021-08-25 20:12:17,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10438 to 8872. [2021-08-25 20:12:17,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8872 states, 8871 states have (on average 1.3063916131214068) internal successors, (11589), 8871 states have internal predecessors, (11589), 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) [2021-08-25 20:12:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8872 states to 8872 states and 11589 transitions. [2021-08-25 20:12:17,521 INFO L78 Accepts]: Start accepts. Automaton has 8872 states and 11589 transitions. Word has length 292 [2021-08-25 20:12:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:17,522 INFO L470 AbstractCegarLoop]: Abstraction has 8872 states and 11589 transitions. [2021-08-25 20:12:17,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2021-08-25 20:12:17,522 INFO L276 IsEmpty]: Start isEmpty. Operand 8872 states and 11589 transitions. [2021-08-25 20:12:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-08-25 20:12:17,538 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:17,538 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:17,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 20:12:17,753 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,SelfDestructingSolverStorable20 [2021-08-25 20:12:17,753 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:17,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:17,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1037661491, now seen corresponding path program 2 times [2021-08-25 20:12:17,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:17,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078190851] [2021-08-25 20:12:17,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:17,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 407 proven. 5 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-08-25 20:12:17,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:17,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078190851] [2021-08-25 20:12:17,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078190851] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:17,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201304318] [2021-08-25 20:12:17,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-25 20:12:17,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:17,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:17,813 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) [2021-08-25 20:12:17,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 20:12:18,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-25 20:12:18,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-25 20:12:18,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:12:18,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:18,868 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-08-25 20:12:18,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201304318] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:18,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:12:18,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 20:12:18,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882646277] [2021-08-25 20:12:18,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:18,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:18,870 INFO L87 Difference]: Start difference. First operand 8872 states and 11589 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-08-25 20:12:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:19,061 INFO L93 Difference]: Finished difference Result 18732 states and 24846 transitions. [2021-08-25 20:12:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:19,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 305 [2021-08-25 20:12:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:19,080 INFO L225 Difference]: With dead ends: 18732 [2021-08-25 20:12:19,081 INFO L226 Difference]: Without dead ends: 9900 [2021-08-25 20:12:19,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9900 states. [2021-08-25 20:12:19,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9900 to 8996. [2021-08-25 20:12:19,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 1.3079488604780434) internal successors, (11765), 8995 states have internal predecessors, (11765), 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) [2021-08-25 20:12:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 11765 transitions. [2021-08-25 20:12:19,339 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 11765 transitions. Word has length 305 [2021-08-25 20:12:19,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:19,339 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 11765 transitions. [2021-08-25 20:12:19,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-08-25 20:12:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 11765 transitions. [2021-08-25 20:12:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-08-25 20:12:19,354 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:19,355 INFO L512 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:19,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 20:12:19,576 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,SelfDestructingSolverStorable21 [2021-08-25 20:12:19,576 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:19,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:19,577 INFO L82 PathProgramCache]: Analyzing trace with hash 650041975, now seen corresponding path program 1 times [2021-08-25 20:12:19,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:19,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268393302] [2021-08-25 20:12:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:19,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 954 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:19,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:19,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268393302] [2021-08-25 20:12:19,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268393302] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:19,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594844139] [2021-08-25 20:12:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:19,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:19,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:19,653 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) [2021-08-25 20:12:19,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-25 20:12:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:20,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:20,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2021-08-25 20:12:20,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594844139] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:20,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:12:20,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 20:12:20,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598022806] [2021-08-25 20:12:20,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:20,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:20,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:20,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:20,999 INFO L87 Difference]: Start difference. First operand 8996 states and 11765 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-08-25 20:12:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:21,107 INFO L93 Difference]: Finished difference Result 22030 states and 28764 transitions. [2021-08-25 20:12:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:21,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 372 [2021-08-25 20:12:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:21,131 INFO L225 Difference]: With dead ends: 22030 [2021-08-25 20:12:21,131 INFO L226 Difference]: Without dead ends: 13074 [2021-08-25 20:12:21,143 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13074 states. [2021-08-25 20:12:21,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13074 to 13074. [2021-08-25 20:12:21,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13074 states, 13073 states have (on average 1.302302455442515) internal successors, (17025), 13073 states have internal predecessors, (17025), 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) [2021-08-25 20:12:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13074 states to 13074 states and 17025 transitions. [2021-08-25 20:12:21,372 INFO L78 Accepts]: Start accepts. Automaton has 13074 states and 17025 transitions. Word has length 372 [2021-08-25 20:12:21,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:21,372 INFO L470 AbstractCegarLoop]: Abstraction has 13074 states and 17025 transitions. [2021-08-25 20:12:21,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-08-25 20:12:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 13074 states and 17025 transitions. [2021-08-25 20:12:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-08-25 20:12:21,392 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:21,393 INFO L512 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:21,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-25 20:12:21,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:21,612 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:21,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:21,613 INFO L82 PathProgramCache]: Analyzing trace with hash -590181313, now seen corresponding path program 1 times [2021-08-25 20:12:21,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:21,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618808565] [2021-08-25 20:12:21,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:21,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:21,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:21,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618808565] [2021-08-25 20:12:21,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618808565] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:21,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262148495] [2021-08-25 20:12:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:21,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:21,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:21,685 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) [2021-08-25 20:12:21,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-25 20:12:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:22,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:22,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:22,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:22,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262148495] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:22,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:22,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:22,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647647985] [2021-08-25 20:12:22,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:22,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:22,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:22,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:22,911 INFO L87 Difference]: Start difference. First operand 13074 states and 17025 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2021-08-25 20:12:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:23,213 INFO L93 Difference]: Finished difference Result 30581 states and 39599 transitions. [2021-08-25 20:12:23,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:12:23,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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 374 [2021-08-25 20:12:23,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:23,242 INFO L225 Difference]: With dead ends: 30581 [2021-08-25 20:12:23,242 INFO L226 Difference]: Without dead ends: 17535 [2021-08-25 20:12:23,256 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:23,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17535 states. [2021-08-25 20:12:23,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17535 to 14250. [2021-08-25 20:12:23,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14250 states, 14249 states have (on average 1.276159730507404) internal successors, (18184), 14249 states have internal predecessors, (18184), 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) [2021-08-25 20:12:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14250 states to 14250 states and 18184 transitions. [2021-08-25 20:12:23,567 INFO L78 Accepts]: Start accepts. Automaton has 14250 states and 18184 transitions. Word has length 374 [2021-08-25 20:12:23,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:23,567 INFO L470 AbstractCegarLoop]: Abstraction has 14250 states and 18184 transitions. [2021-08-25 20:12:23,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2021-08-25 20:12:23,568 INFO L276 IsEmpty]: Start isEmpty. Operand 14250 states and 18184 transitions. [2021-08-25 20:12:23,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-08-25 20:12:23,593 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:23,601 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:23,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-25 20:12:23,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:23,821 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:23,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:23,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1273645298, now seen corresponding path program 1 times [2021-08-25 20:12:23,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:23,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107059867] [2021-08-25 20:12:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:23,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1971 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-08-25 20:12:23,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:23,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107059867] [2021-08-25 20:12:23,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107059867] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:23,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:23,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:23,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515513992] [2021-08-25 20:12:23,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:23,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:23,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:23,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:23,879 INFO L87 Difference]: Start difference. First operand 14250 states and 18184 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-08-25 20:12:24,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:24,052 INFO L93 Difference]: Finished difference Result 26787 states and 33718 transitions. [2021-08-25 20:12:24,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:24,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 413 [2021-08-25 20:12:24,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:24,061 INFO L225 Difference]: With dead ends: 26787 [2021-08-25 20:12:24,062 INFO L226 Difference]: Without dead ends: 6014 [2021-08-25 20:12:24,073 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:24,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2021-08-25 20:12:24,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 5562. [2021-08-25 20:12:24,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5562 states, 5561 states have (on average 1.2542708146016903) internal successors, (6975), 5561 states have internal predecessors, (6975), 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) [2021-08-25 20:12:24,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 6975 transitions. [2021-08-25 20:12:24,135 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 6975 transitions. Word has length 413 [2021-08-25 20:12:24,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:24,136 INFO L470 AbstractCegarLoop]: Abstraction has 5562 states and 6975 transitions. [2021-08-25 20:12:24,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-08-25 20:12:24,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 6975 transitions. [2021-08-25 20:12:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-08-25 20:12:24,144 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:24,145 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:24,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-25 20:12:24,145 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:24,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:24,146 INFO L82 PathProgramCache]: Analyzing trace with hash 381067605, now seen corresponding path program 1 times [2021-08-25 20:12:24,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:24,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696108643] [2021-08-25 20:12:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:24,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:24,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2021-08-25 20:12:24,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:24,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696108643] [2021-08-25 20:12:24,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696108643] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:24,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976117037] [2021-08-25 20:12:24,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:24,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:24,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:24,201 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) [2021-08-25 20:12:24,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-25 20:12:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:24,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:24,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2021-08-25 20:12:25,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976117037] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:25,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:25,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:25,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076274055] [2021-08-25 20:12:25,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:25,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:25,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:25,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:25,843 INFO L87 Difference]: Start difference. First operand 5562 states and 6975 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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) [2021-08-25 20:12:26,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:26,005 INFO L93 Difference]: Finished difference Result 7086 states and 8869 transitions. [2021-08-25 20:12:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:12:26,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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 442 [2021-08-25 20:12:26,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:26,006 INFO L225 Difference]: With dead ends: 7086 [2021-08-25 20:12:26,006 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 20:12:26,009 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:26,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 20:12:26,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 20:12:26,010 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) [2021-08-25 20:12:26,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 20:12:26,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 442 [2021-08-25 20:12:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:26,010 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 20:12:26,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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) [2021-08-25 20:12:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 20:12:26,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 20:12:26,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:12:26,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-25 20:12:26,231 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,SelfDestructingSolverStorable25 [2021-08-25 20:12:26,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 20:12:26,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:26,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:28,215 INFO L853 garLoopResultBuilder]: At program point L168(lines 164 494) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1) (and .cse0 .cse1 .cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2))) [2021-08-25 20:12:28,216 INFO L853 garLoopResultBuilder]: At program point L102(lines 101 515) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0))) [2021-08-25 20:12:28,216 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 402) no Hoare annotation was computed. [2021-08-25 20:12:28,216 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 369) no Hoare annotation was computed. [2021-08-25 20:12:28,216 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 492) no Hoare annotation was computed. [2021-08-25 20:12:28,216 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 503) no Hoare annotation was computed. [2021-08-25 20:12:28,216 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 514) no Hoare annotation was computed. [2021-08-25 20:12:28,216 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2021-08-25 20:12:28,216 INFO L857 garLoopResultBuilder]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2021-08-25 20:12:28,217 INFO L853 garLoopResultBuilder]: At program point L138(lines 134 504) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2021-08-25 20:12:28,217 INFO L860 garLoopResultBuilder]: At program point L535(lines 97 536) the Hoare annotation is: true [2021-08-25 20:12:28,217 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 275) no Hoare annotation was computed. [2021-08-25 20:12:28,217 INFO L857 garLoopResultBuilder]: For program point L238(lines 238 241) no Hoare annotation was computed. [2021-08-25 20:12:28,217 INFO L857 garLoopResultBuilder]: For program point L271-2(lines 271 275) no Hoare annotation was computed. [2021-08-25 20:12:28,217 INFO L857 garLoopResultBuilder]: For program point L305(lines 305 308) no Hoare annotation was computed. [2021-08-25 20:12:28,217 INFO L853 garLoopResultBuilder]: At program point L206(lines 104 514) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0))) [2021-08-25 20:12:28,218 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 491) no Hoare annotation was computed. [2021-08-25 20:12:28,218 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 502) no Hoare annotation was computed. [2021-08-25 20:12:28,218 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 513) no Hoare annotation was computed. [2021-08-25 20:12:28,218 INFO L853 garLoopResultBuilder]: At program point L174(lines 170 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1) (and .cse0 .cse1 .cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2))) [2021-08-25 20:12:28,218 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 475) no Hoare annotation was computed. [2021-08-25 20:12:28,218 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 451) no Hoare annotation was computed. [2021-08-25 20:12:28,218 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 421) no Hoare annotation was computed. [2021-08-25 20:12:28,218 INFO L857 garLoopResultBuilder]: For program point L407-1(lines 407 421) no Hoare annotation was computed. [2021-08-25 20:12:28,218 INFO L857 garLoopResultBuilder]: For program point L440-2(lines 440 451) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 490) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 501) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 512) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 542) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L540-2(lines 540 542) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L853 garLoopResultBuilder]: At program point L144(lines 140 502) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 345) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L211(lines 211 213) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L211-2(lines 211 213) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L377(lines 377 379) no Hoare annotation was computed. [2021-08-25 20:12:28,219 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 489) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 500) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 511) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L411(lines 411 417) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L853 garLoopResultBuilder]: At program point L180(lines 176 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)))) [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L445(lines 445 448) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L313(lines 313 315) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L280-1(lines 280 290) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L860 garLoopResultBuilder]: At program point L545(lines 12 547) the Hoare annotation is: true [2021-08-25 20:12:28,220 INFO L853 garLoopResultBuilder]: At program point L314(lines 76 546) the Hoare annotation is: false [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 488) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 499) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 510) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L216(lines 216 219) no Hoare annotation was computed. [2021-08-25 20:12:28,220 INFO L853 garLoopResultBuilder]: At program point L150(lines 146 500) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse3 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 .cse3) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse3) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2021-08-25 20:12:28,220 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L853 garLoopResultBuilder]: At program point L481(lines 98 534) the Hoare annotation is: (let ((.cse6 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse7 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse4 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse8 (= 4512 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse3 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and .cse2 .cse3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (and .cse4 .cse5 .cse3 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4384) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and (= 4464 ULTIMATE.start_ssl3_connect_~s__state~0) .cse0 .cse1) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4480) .cse0 .cse1) (and .cse6 .cse7 .cse3) (and .cse3 .cse8) (and .cse6 .cse7 .cse9 .cse10 .cse0 .cse1) (and .cse4 .cse5 .cse9 .cse10 .cse0 .cse1) (and .cse3 .cse10 .cse11) (and .cse2 .cse0 .cse1) (and .cse10 .cse1 .cse11) (and .cse8 .cse0 .cse1) (and (= 4496 ULTIMATE.start_ssl3_connect_~s__state~0) .cse0 .cse1) (and .cse3 .cse0))) [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 318) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 252) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L250-2(lines 201 480) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L383-2(lines 201 480) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L284(lines 284 286) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L284-2(lines 282 290) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 487) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 498) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 509) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 532) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L853 garLoopResultBuilder]: At program point L186(lines 182 488) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)))) [2021-08-25 20:12:28,221 INFO L853 garLoopResultBuilder]: At program point L120(lines 116 510) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 89) no Hoare annotation was computed. [2021-08-25 20:12:28,221 INFO L857 garLoopResultBuilder]: For program point L87-2(lines 84 90) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 531) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L352(lines 352 354) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L518(lines 518 523) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L518-2(lines 517 531) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 486) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 497) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 508) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 233) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 201 480) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L520(lines 520 522) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 361) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L356-2(lines 356 361) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 227) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 485) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 496) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 507) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 96) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L456-1(lines 456 458) no Hoare annotation was computed. [2021-08-25 20:12:28,222 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 260) no Hoare annotation was computed. [2021-08-25 20:12:28,223 INFO L853 garLoopResultBuilder]: At program point L192(lines 188 486) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse3 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse3) (and .cse4 .cse0 .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0) (and .cse4 .cse0 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 .cse3))) [2021-08-25 20:12:28,223 INFO L853 garLoopResultBuilder]: At program point L126(lines 122 508) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2021-08-25 20:12:28,223 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 95) no Hoare annotation was computed. [2021-08-25 20:12:28,223 INFO L860 garLoopResultBuilder]: At program point L556(lines 548 558) the Hoare annotation is: true [2021-08-25 20:12:28,223 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 327) no Hoare annotation was computed. [2021-08-25 20:12:28,223 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 201 480) no Hoare annotation was computed. [2021-08-25 20:12:28,223 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 20:12:28,223 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 395) no Hoare annotation was computed. [2021-08-25 20:12:28,223 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 484) no Hoare annotation was computed. [2021-08-25 20:12:28,223 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 495) no Hoare annotation was computed. [2021-08-25 20:12:28,223 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 506) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 529) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 231) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L853 garLoopResultBuilder]: At program point L195(lines 194 484) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse4 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352))) (or (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and .cse0 .cse1 .cse3 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse4) (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse3 .cse4) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1))) [2021-08-25 20:12:28,224 INFO L853 garLoopResultBuilder]: At program point L162(lines 152 498) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1) (and .cse0 .cse1 .cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2))) [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 429) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 483) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 494) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 505) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L98-1(lines 76 546) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 544) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L462(lines 462 464) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L462-2(lines 462 464) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 299) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L297-2(lines 201 480) no Hoare annotation was computed. [2021-08-25 20:12:28,224 INFO L860 garLoopResultBuilder]: At program point L198(lines 197 483) the Hoare annotation is: true [2021-08-25 20:12:28,224 INFO L853 garLoopResultBuilder]: At program point L132(lines 128 506) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2021-08-25 20:12:28,224 INFO L857 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L430-2(lines 430 434) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L331(lines 331 335) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L265(lines 265 267) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L331-2(lines 331 335) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L265-2(lines 201 480) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L860 garLoopResultBuilder]: At program point L200(lines 199 483) the Hoare annotation is: true [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 493) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 504) no Hoare annotation was computed. [2021-08-25 20:12:28,225 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 515) no Hoare annotation was computed. [2021-08-25 20:12:28,228 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:12:28,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:12:28 BoogieIcfgContainer [2021-08-25 20:12:28,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:12:28,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:12:28,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:12:28,263 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:12:28,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:11" (3/4) ... [2021-08-25 20:12:28,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 20:12:28,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 20:12:28,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 20:12:28,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:12:28,287 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:12:28,374 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:12:28,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:12:28,376 INFO L168 Benchmark]: Toolchain (without parser) took 18123.18 ms. Allocated memory was 62.9 MB in the beginning and 1.7 GB in the end (delta: 1.7 GB). Free memory was 43.3 MB in the beginning and 1.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 471.8 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:28,376 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 62.9 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:12:28,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.55 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 42.4 MB in the end (delta: 751.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:28,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.26 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 39.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:28,376 INFO L168 Benchmark]: Boogie Preprocessor took 19.64 ms. Allocated memory is still 62.9 MB. Free memory was 39.6 MB in the beginning and 37.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:28,377 INFO L168 Benchmark]: RCFGBuilder took 582.22 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 37.6 MB in the beginning and 38.4 MB in the end (delta: -822.8 kB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:28,377 INFO L168 Benchmark]: TraceAbstraction took 17033.27 ms. Allocated memory was 75.5 MB in the beginning and 1.7 GB in the end (delta: 1.7 GB). Free memory was 38.2 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 660.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:28,377 INFO L168 Benchmark]: Witness Printer took 111.85 ms. Allocated memory is still 1.7 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:28,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 62.9 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 337.55 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 42.4 MB in the end (delta: 751.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.26 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 39.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.64 ms. Allocated memory is still 62.9 MB. Free memory was 39.6 MB in the beginning and 37.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 582.22 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 37.6 MB in the beginning and 38.4 MB in the end (delta: -822.8 kB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17033.27 ms. Allocated memory was 75.5 MB in the beginning and 1.7 GB in the end (delta: 1.7 GB). Free memory was 38.2 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 660.5 MB. Max. memory is 16.1 GB. * Witness Printer took 111.85 ms. Allocated memory is still 1.7 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 544]: 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, 127 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16958.6ms, OverallIterations: 26, TraceHistogramMax: 18, EmptinessCheckTime: 158.6ms, AutomataDifference: 3919.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1983.5ms, InitialAbstractionConstructionTime: 11.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5281 SDtfs, 1771 SDslu, 2969 SDs, 0 SdLazy, 2491 SolverSat, 465 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1755.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1869 GetRequests, 1833 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14250occurred in iteration=24, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1978.7ms AutomataMinimizationTime, 26 MinimizatonAttempts, 6791 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 522 NumberOfFragments, 805 HoareAnnotationTreeSize, 22 FomulaSimplifications, 36330 FormulaSimplificationTreeSizeReduction, 567.6ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 3784 FormulaSimplificationTreeSizeReductionInter, 1401.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 221.2ms SsaConstructionTime, 669.9ms SatisfiabilityAnalysisTime, 5191.6ms InterpolantComputationTime, 7041 NumberOfCodeBlocks, 7041 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 7010 ConstructedInterpolants, 0 QuantifiedInterpolants, 9594 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3290 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 31 InterpolantComputations, 23 PerfectInterpolantSequences, 23227/23311 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: 176]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 0) && 4464 <= s__state) || ((s__state <= 4560 && blastFlag == 2) && 4464 <= s__state)) || (((s__state <= 4560 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4352 <= s__state) && blastFlag == 1) || (((s__state <= 4560 && 4352 <= s__state) && blastFlag == 2) && s__hit == 0)) || ((((s__state <= 4560 && 4352 <= s__state) && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0) - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 0) && 4464 <= s__state) || (((s__state <= 4560 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((s__state <= 4560 && blastFlag == 2) && 4464 <= s__state) && s__hit == 0) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: ((((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3) || ((((4352 <= s__state && s__state <= 4352) && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__hit == 0)) || (((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((4352 <= s__state && blastFlag == 0) && s__state <= 4352) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4352 <= s__state) && blastFlag == 2) && s__hit == 0) || ((((s__state <= 4560 && 4352 <= s__state) && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((((((((((((((((s__hit == 0 && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms) || (s__state == 4528 && blastFlag == 2)) || blastFlag == 0) || (((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3)) || (s__state == 4384 && blastFlag == 1)) || ((4464 == s__state && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state == 4480 && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2)) || (blastFlag == 2 && 4512 == s__state)) || (((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((blastFlag == 2 && s__s3__tmp__next_state___0 <= 4560) && s__state <= 3)) || ((s__state == 4528 && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__s3__tmp__next_state___0 <= 4560 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 3)) || ((4512 == s__state && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((4496 == s__state && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || (blastFlag == 2 && s__hit == 0) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4352 <= s__state) && blastFlag == 2) && s__hit == 0) || ((((s__state <= 4560 && 4352 <= s__state) && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: (((((4560 <= s__state && blastFlag == 2) && s__hit == 0) || (((4560 <= s__state && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2)) || (blastFlag == 0 && 4560 <= s__state)) || ((((s__state <= 4560 && 4560 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 0) && 4464 <= s__state) || (((s__state <= 4560 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((s__state <= 4560 && blastFlag == 2) && 4464 <= s__state) && s__hit == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((4560 <= s__state && blastFlag == 2) && s__hit == 0) || (((4560 <= s__state && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || (blastFlag == 0 && 4560 <= s__state) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4352 <= s__state) && blastFlag == 2) && s__hit == 0) || ((((s__state <= 4560 && 4352 <= s__state) && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4352 <= s__state) && blastFlag == 2) && s__hit == 0) || ((((s__state <= 4560 && 4352 <= s__state) && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((((s__state <= 4560 && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms) || (((s__state <= 4560 && 4352 <= s__state) && blastFlag == 2) && s__hit == 0)) || ((((s__state <= 4560 && 4352 <= s__state) && s__hit == 0) && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 0) && 4464 <= s__state) || ((s__state <= 4560 && blastFlag == 2) && 4464 <= s__state)) || (((s__state <= 4560 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 0) && 4464 <= s__state) || (((s__state <= 4560 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((s__state <= 4560 && blastFlag == 2) && 4464 <= s__state) && s__hit == 0) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (((s__hit == 0 && blastFlag <= 4) && 256 == s__s3__tmp__new_cipher__algorithms) || blastFlag == 0) || (blastFlag == 2 && s__hit == 0) RESULT: Ultimate proved your program to be correct! [2021-08-25 20:12:28,420 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...