./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_4.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_4.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 51c32a91c699292d3a71549ca427833cc8b88f69 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:12:30,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:12:30,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:12:30,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:12:30,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:12:30,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:12:30,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:12:30,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:12:30,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:12:30,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:12:30,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:12:30,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:12:30,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:12:30,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:12:30,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:12:30,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:12:30,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:12:30,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:12:30,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:12:30,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:12:30,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:12:30,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:12:30,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:12:30,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:12:30,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:12:30,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:12:30,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:12:30,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:12:30,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:12:30,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:12:30,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:12:30,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:12:30,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:12:30,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:12:30,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:12:30,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:12:30,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:12:30,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:12:30,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:12:30,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:12:30,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:12:30,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:12:30,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:12:30,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:12:30,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:12:30,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:12:30,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:12:30,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:12:30,475 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:12:30,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:12:30,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:12:30,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:12:30,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:12:30,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:12:30,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:12:30,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:12:30,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:12:30,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:12:30,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:12:30,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:12:30,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:12:30,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:12:30,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:12:30,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:12:30,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:12:30,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:12:30,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:12:30,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:12:30,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:12:30,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:12:30,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:12:30,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:12:30,478 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c32a91c699292d3a71549ca427833cc8b88f69 [2021-08-25 20:12:30,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:12:30,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:12:30,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:12:30,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:12:30,804 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:12:30,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c [2021-08-25 20:12:30,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8acb824c/6a6434caaa6e4f6689d7d1f834bd8d89/FLAG883c4dc26 [2021-08-25 20:12:31,255 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:12:31,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c [2021-08-25 20:12:31,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8acb824c/6a6434caaa6e4f6689d7d1f834bd8d89/FLAG883c4dc26 [2021-08-25 20:12:31,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8acb824c/6a6434caaa6e4f6689d7d1f834bd8d89 [2021-08-25 20:12:31,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:12:31,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:12:31,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:12:31,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:12:31,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:12:31,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:31,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75732198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31, skipping insertion in model container [2021-08-25 20:12:31,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:31,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:12:31,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:12:31,833 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_4.cil-1.c[35356,35369] [2021-08-25 20:12:31,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:12:31,892 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:12:31,941 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_4.cil-1.c[35356,35369] [2021-08-25 20:12:31,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:12:31,951 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:12:31,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31 WrapperNode [2021-08-25 20:12:31,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:12:31,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:12:31,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:12:31,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:12:31,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:31,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:31,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:12:31,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:12:31,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:12:31,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:12:31,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:31,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:31,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:31,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:31,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:32,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:32,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:32,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:12:32,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:12:32,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:12:32,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:12:32,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (1/1) ... [2021-08-25 20:12:32,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:12:32,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:32,057 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 20:12:32,076 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 20:12:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:12:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:12:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:12:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:12:32,201 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-25 20:12:32,565 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-25 20:12:32,565 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-25 20:12:32,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:12:32,570 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 20:12:32,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:32 BoogieIcfgContainer [2021-08-25 20:12:32,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:12:32,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:12:32,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:12:32,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:12:32,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:12:31" (1/3) ... [2021-08-25 20:12:32,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@914876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:12:32, skipping insertion in model container [2021-08-25 20:12:32,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:31" (2/3) ... [2021-08-25 20:12:32,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@914876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:12:32, skipping insertion in model container [2021-08-25 20:12:32,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:32" (3/3) ... [2021-08-25 20:12:32,576 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-1.c [2021-08-25 20:12:32,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:12:32,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:12:32,609 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:12:32,618 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 20:12:32,618 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:12:32,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 127 states have internal predecessors, (216), 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 20:12:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-25 20:12:32,633 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,633 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 20:12:32,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2021-08-25 20:12:32,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817182517] [2021-08-25 20:12:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:32,791 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 20:12:32,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:32,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817182517] [2021-08-25 20:12:32,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817182517] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:32,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:32,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:32,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323117397] [2021-08-25 20:12:32,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:32,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:32,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:32,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,805 INFO L87 Difference]: Start difference. First operand has 128 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 127 states have internal predecessors, (216), 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 20:12:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:32,943 INFO L93 Difference]: Finished difference Result 252 states and 427 transitions. [2021-08-25 20:12:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:32,946 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 20:12:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:32,953 INFO L225 Difference]: With dead ends: 252 [2021-08-25 20:12:32,953 INFO L226 Difference]: Without dead ends: 115 [2021-08-25 20:12:32,955 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-08-25 20:12:32,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-08-25 20:12:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 114 states have internal predecessors, (172), 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 20:12:32,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-08-25 20:12:32,986 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-08-25 20:12:32,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:32,987 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-08-25 20:12:32,987 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 20:12:32,987 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-08-25 20:12:32,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-25 20:12:32,990 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,990 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:32,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:12:32,990 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,994 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2021-08-25 20:12:32,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022706097] [2021-08-25 20:12:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:12:33,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022706097] [2021-08-25 20:12:33,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022706097] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466024105] [2021-08-25 20:12:33,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,053 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 20:12:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,158 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2021-08-25 20:12:33,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-08-25 20:12:33,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,163 INFO L225 Difference]: With dead ends: 238 [2021-08-25 20:12:33,164 INFO L226 Difference]: Without dead ends: 133 [2021-08-25 20:12:33,165 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 20:12:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-08-25 20:12:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2021-08-25 20:12:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4883720930232558) internal successors, (192), 129 states have internal predecessors, (192), 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 20:12:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2021-08-25 20:12:33,183 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2021-08-25 20:12:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,184 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2021-08-25 20:12:33,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 20:12:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2021-08-25 20:12:33,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-25 20:12:33,185 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,185 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:33,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 20:12:33,185 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,186 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2021-08-25 20:12:33,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335724427] [2021-08-25 20:12:33,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-25 20:12:33,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335724427] [2021-08-25 20:12:33,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335724427] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834559068] [2021-08-25 20:12:33,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,251 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 20:12:33,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,372 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2021-08-25 20:12:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 51 [2021-08-25 20:12:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,374 INFO L225 Difference]: With dead ends: 271 [2021-08-25 20:12:33,374 INFO L226 Difference]: Without dead ends: 151 [2021-08-25 20:12:33,374 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 20:12:33,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-25 20:12:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2021-08-25 20:12:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4657534246575343) internal successors, (214), 146 states have internal predecessors, (214), 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 20:12:33,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2021-08-25 20:12:33,395 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2021-08-25 20:12:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,395 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2021-08-25 20:12:33,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 20:12:33,396 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2021-08-25 20:12:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-25 20:12:33,397 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,397 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 20:12:33,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 20:12:33,398 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1231505257, now seen corresponding path program 1 times [2021-08-25 20:12:33,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051135288] [2021-08-25 20:12:33,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,444 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 20:12:33,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051135288] [2021-08-25 20:12:33,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051135288] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303992675] [2021-08-25 20:12:33,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,446 INFO L87 Difference]: Start difference. First operand 147 states and 214 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 20:12:33,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,625 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2021-08-25 20:12:33,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,628 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 20:12:33,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,629 INFO L225 Difference]: With dead ends: 335 [2021-08-25 20:12:33,629 INFO L226 Difference]: Without dead ends: 197 [2021-08-25 20:12:33,630 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-08-25 20:12:33,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2021-08-25 20:12:33,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.411764705882353) internal successors, (264), 187 states have internal predecessors, (264), 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 20:12:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2021-08-25 20:12:33,636 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2021-08-25 20:12:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,636 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2021-08-25 20:12:33,636 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 20:12:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2021-08-25 20:12:33,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-25 20:12:33,638 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,638 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 20:12:33,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 20:12:33,638 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1258023705, now seen corresponding path program 1 times [2021-08-25 20:12:33,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108108399] [2021-08-25 20:12:33,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,675 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 20:12:33,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108108399] [2021-08-25 20:12:33,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108108399] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740080445] [2021-08-25 20:12:33,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,677 INFO L87 Difference]: Start difference. First operand 188 states and 264 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 20:12:33,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,793 INFO L93 Difference]: Finished difference Result 391 states and 557 transitions. [2021-08-25 20:12:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,794 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 20:12:33,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,795 INFO L225 Difference]: With dead ends: 391 [2021-08-25 20:12:33,795 INFO L226 Difference]: Without dead ends: 213 [2021-08-25 20:12:33,796 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 20:12:33,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-08-25 20:12:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 207. [2021-08-25 20:12:33,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.3980582524271845) internal successors, (288), 206 states have internal predecessors, (288), 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 20:12:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2021-08-25 20:12:33,815 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2021-08-25 20:12:33,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,816 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2021-08-25 20:12:33,817 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 20:12:33,817 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2021-08-25 20:12:33,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-25 20:12:33,822 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,822 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, 1] [2021-08-25 20:12:33,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 20:12:33,822 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1378844437, now seen corresponding path program 1 times [2021-08-25 20:12:33,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498778638] [2021-08-25 20:12:33,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,864 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 20:12:33,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498778638] [2021-08-25 20:12:33,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498778638] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626816671] [2021-08-25 20:12:33,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,866 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 20:12:33,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,976 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2021-08-25 20:12:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 85 [2021-08-25 20:12:33,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,994 INFO L225 Difference]: With dead ends: 428 [2021-08-25 20:12:33,994 INFO L226 Difference]: Without dead ends: 231 [2021-08-25 20:12:33,994 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 20:12:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-25 20:12:33,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2021-08-25 20:12:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.3832599118942732) internal successors, (314), 227 states have internal predecessors, (314), 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 20:12:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2021-08-25 20:12:33,999 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2021-08-25 20:12:33,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,999 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-08-25 20:12:33,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 20:12:33,999 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2021-08-25 20:12:34,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-25 20:12:34,000 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,001 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] [2021-08-25 20:12:34,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 20:12:34,001 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,001 INFO L82 PathProgramCache]: Analyzing trace with hash 311084899, now seen corresponding path program 1 times [2021-08-25 20:12:34,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126969084] [2021-08-25 20:12:34,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,070 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 20:12:34,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126969084] [2021-08-25 20:12:34,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126969084] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313119332] [2021-08-25 20:12:34,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,072 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 20:12:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,107 INFO L93 Difference]: Finished difference Result 660 states and 910 transitions. [2021-08-25 20:12:34,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 105 [2021-08-25 20:12:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,109 INFO L225 Difference]: With dead ends: 660 [2021-08-25 20:12:34,110 INFO L226 Difference]: Without dead ends: 442 [2021-08-25 20:12:34,110 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-08-25 20:12:34,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-08-25 20:12:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.3718820861678005) internal successors, (605), 441 states have internal predecessors, (605), 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 20:12:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 605 transitions. [2021-08-25 20:12:34,127 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 605 transitions. Word has length 105 [2021-08-25 20:12:34,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,127 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 605 transitions. [2021-08-25 20:12:34,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 20:12:34,127 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 605 transitions. [2021-08-25 20:12:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-25 20:12:34,128 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,129 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] [2021-08-25 20:12:34,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 20:12:34,129 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,129 INFO L82 PathProgramCache]: Analyzing trace with hash 990357153, now seen corresponding path program 1 times [2021-08-25 20:12:34,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58729132] [2021-08-25 20:12:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,191 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 20:12:34,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58729132] [2021-08-25 20:12:34,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58729132] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727638493] [2021-08-25 20:12:34,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,197 INFO L87 Difference]: Start difference. First operand 442 states and 605 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 20:12:34,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,229 INFO L93 Difference]: Finished difference Result 895 states and 1224 transitions. [2021-08-25 20:12:34,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 105 [2021-08-25 20:12:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,232 INFO L225 Difference]: With dead ends: 895 [2021-08-25 20:12:34,233 INFO L226 Difference]: Without dead ends: 463 [2021-08-25 20:12:34,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-08-25 20:12:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2021-08-25 20:12:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.367965367965368) internal successors, (632), 462 states have internal predecessors, (632), 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 20:12:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 632 transitions. [2021-08-25 20:12:34,243 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 632 transitions. Word has length 105 [2021-08-25 20:12:34,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,243 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 632 transitions. [2021-08-25 20:12:34,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 20:12:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 632 transitions. [2021-08-25 20:12:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-25 20:12:34,245 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,245 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] [2021-08-25 20:12:34,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 20:12:34,245 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1829390815, now seen corresponding path program 1 times [2021-08-25 20:12:34,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825273445] [2021-08-25 20:12:34,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-08-25 20:12:34,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825273445] [2021-08-25 20:12:34,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825273445] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16463959] [2021-08-25 20:12:34,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,298 INFO L87 Difference]: Start difference. First operand 463 states and 632 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 20:12:34,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,319 INFO L93 Difference]: Finished difference Result 943 states and 1285 transitions. [2021-08-25 20:12:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 105 [2021-08-25 20:12:34,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,322 INFO L225 Difference]: With dead ends: 943 [2021-08-25 20:12:34,322 INFO L226 Difference]: Without dead ends: 490 [2021-08-25 20:12:34,332 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 20:12:34,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-08-25 20:12:34,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2021-08-25 20:12:34,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.361963190184049) internal successors, (666), 489 states have internal predecessors, (666), 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 20:12:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 666 transitions. [2021-08-25 20:12:34,343 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 666 transitions. Word has length 105 [2021-08-25 20:12:34,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,344 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 666 transitions. [2021-08-25 20:12:34,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 20:12:34,344 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 666 transitions. [2021-08-25 20:12:34,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-25 20:12:34,345 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,345 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, 1] [2021-08-25 20:12:34,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 20:12:34,346 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,346 INFO L82 PathProgramCache]: Analyzing trace with hash -915547054, now seen corresponding path program 1 times [2021-08-25 20:12:34,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027112949] [2021-08-25 20:12:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,390 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 20:12:34,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027112949] [2021-08-25 20:12:34,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027112949] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913562238] [2021-08-25 20:12:34,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,392 INFO L87 Difference]: Start difference. First operand 490 states and 666 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 20:12:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,423 INFO L93 Difference]: Finished difference Result 708 states and 966 transitions. [2021-08-25 20:12:34,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 107 [2021-08-25 20:12:34,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,436 INFO L225 Difference]: With dead ends: 708 [2021-08-25 20:12:34,436 INFO L226 Difference]: Without dead ends: 706 [2021-08-25 20:12:34,437 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 20:12:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-08-25 20:12:34,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2021-08-25 20:12:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 705 states have (on average 1.3673758865248227) internal successors, (964), 705 states have internal predecessors, (964), 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 20:12:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 964 transitions. [2021-08-25 20:12:34,454 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 964 transitions. Word has length 107 [2021-08-25 20:12:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,454 INFO L470 AbstractCegarLoop]: Abstraction has 706 states and 964 transitions. [2021-08-25 20:12:34,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 20:12:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 964 transitions. [2021-08-25 20:12:34,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-08-25 20:12:34,456 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,457 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 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] [2021-08-25 20:12:34,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 20:12:34,457 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1430305885, now seen corresponding path program 1 times [2021-08-25 20:12:34,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764496267] [2021-08-25 20:12:34,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-08-25 20:12:34,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764496267] [2021-08-25 20:12:34,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764496267] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005290912] [2021-08-25 20:12:34,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,504 INFO L87 Difference]: Start difference. First operand 706 states and 964 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 20:12:34,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,668 INFO L93 Difference]: Finished difference Result 1528 states and 2147 transitions. [2021-08-25 20:12:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 147 [2021-08-25 20:12:34,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,672 INFO L225 Difference]: With dead ends: 1528 [2021-08-25 20:12:34,672 INFO L226 Difference]: Without dead ends: 856 [2021-08-25 20:12:34,673 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2021-08-25 20:12:34,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 823. [2021-08-25 20:12:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 822 states have (on average 1.4026763990267639) internal successors, (1153), 822 states have internal predecessors, (1153), 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 20:12:34,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1153 transitions. [2021-08-25 20:12:34,689 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1153 transitions. Word has length 147 [2021-08-25 20:12:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,689 INFO L470 AbstractCegarLoop]: Abstraction has 823 states and 1153 transitions. [2021-08-25 20:12:34,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 20:12:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1153 transitions. [2021-08-25 20:12:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-08-25 20:12:34,692 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,692 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 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 20:12:34,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-25 20:12:34,693 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1346631412, now seen corresponding path program 1 times [2021-08-25 20:12:34,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031306619] [2021-08-25 20:12:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-08-25 20:12:34,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031306619] [2021-08-25 20:12:34,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031306619] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664194568] [2021-08-25 20:12:34,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,730 INFO L87 Difference]: Start difference. First operand 823 states and 1153 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 20:12:34,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,851 INFO L93 Difference]: Finished difference Result 1689 states and 2365 transitions. [2021-08-25 20:12:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 183 [2021-08-25 20:12:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,859 INFO L225 Difference]: With dead ends: 1689 [2021-08-25 20:12:34,859 INFO L226 Difference]: Without dead ends: 903 [2021-08-25 20:12:34,860 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 20:12:34,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2021-08-25 20:12:34,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 892. [2021-08-25 20:12:34,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 891 states have (on average 1.388327721661055) internal successors, (1237), 891 states have internal predecessors, (1237), 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 20:12:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1237 transitions. [2021-08-25 20:12:34,880 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1237 transitions. Word has length 183 [2021-08-25 20:12:34,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,880 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 1237 transitions. [2021-08-25 20:12:34,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 20:12:34,880 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1237 transitions. [2021-08-25 20:12:34,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-08-25 20:12:34,883 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,883 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 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, 1, 1, 1, 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 20:12:34,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 20:12:34,884 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,884 INFO L82 PathProgramCache]: Analyzing trace with hash 880338370, now seen corresponding path program 1 times [2021-08-25 20:12:34,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675691118] [2021-08-25 20:12:34,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-08-25 20:12:34,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675691118] [2021-08-25 20:12:34,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675691118] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410362529] [2021-08-25 20:12:34,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,935 INFO L87 Difference]: Start difference. First operand 892 states and 1237 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 20:12:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:35,047 INFO L93 Difference]: Finished difference Result 1831 states and 2546 transitions. [2021-08-25 20:12:35,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:35,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 204 [2021-08-25 20:12:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:35,051 INFO L225 Difference]: With dead ends: 1831 [2021-08-25 20:12:35,051 INFO L226 Difference]: Without dead ends: 976 [2021-08-25 20:12:35,052 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 20:12:35,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2021-08-25 20:12:35,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 967. [2021-08-25 20:12:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 966 states have (on average 1.3737060041407867) internal successors, (1327), 966 states have internal predecessors, (1327), 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 20:12:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1327 transitions. [2021-08-25 20:12:35,090 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1327 transitions. Word has length 204 [2021-08-25 20:12:35,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:35,090 INFO L470 AbstractCegarLoop]: Abstraction has 967 states and 1327 transitions. [2021-08-25 20:12:35,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 20:12:35,090 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1327 transitions. [2021-08-25 20:12:35,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-08-25 20:12:35,093 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:35,093 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:35,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-25 20:12:35,094 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:35,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:35,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1998340689, now seen corresponding path program 1 times [2021-08-25 20:12:35,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:35,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265943819] [2021-08-25 20:12:35,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-08-25 20:12:35,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:35,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265943819] [2021-08-25 20:12:35,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265943819] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:35,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:35,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:35,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88843334] [2021-08-25 20:12:35,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:35,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:35,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:35,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,155 INFO L87 Difference]: Start difference. First operand 967 states and 1327 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 20:12:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:35,267 INFO L93 Difference]: Finished difference Result 1987 states and 2735 transitions. [2021-08-25 20:12:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:35,267 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 228 [2021-08-25 20:12:35,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:35,271 INFO L225 Difference]: With dead ends: 1987 [2021-08-25 20:12:35,271 INFO L226 Difference]: Without dead ends: 1057 [2021-08-25 20:12:35,273 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 20:12:35,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2021-08-25 20:12:35,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1051. [2021-08-25 20:12:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1050 states have (on average 1.358095238095238) internal successors, (1426), 1050 states have internal predecessors, (1426), 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 20:12:35,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1426 transitions. [2021-08-25 20:12:35,293 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1426 transitions. Word has length 228 [2021-08-25 20:12:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:35,294 INFO L470 AbstractCegarLoop]: Abstraction has 1051 states and 1426 transitions. [2021-08-25 20:12:35,294 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 20:12:35,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1426 transitions. [2021-08-25 20:12:35,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-08-25 20:12:35,297 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:35,297 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:35,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-25 20:12:35,298 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:35,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:35,298 INFO L82 PathProgramCache]: Analyzing trace with hash -967299791, now seen corresponding path program 1 times [2021-08-25 20:12:35,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:35,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476740080] [2021-08-25 20:12:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-08-25 20:12:35,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:35,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476740080] [2021-08-25 20:12:35,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476740080] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:35,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:35,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:35,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851318792] [2021-08-25 20:12:35,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:35,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:35,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,367 INFO L87 Difference]: Start difference. First operand 1051 states and 1426 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 20:12:35,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:35,488 INFO L93 Difference]: Finished difference Result 2167 states and 2960 transitions. [2021-08-25 20:12:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:35,489 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 228 [2021-08-25 20:12:35,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:35,493 INFO L225 Difference]: With dead ends: 2167 [2021-08-25 20:12:35,493 INFO L226 Difference]: Without dead ends: 1153 [2021-08-25 20:12:35,495 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 20:12:35,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2021-08-25 20:12:35,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1144. [2021-08-25 20:12:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 1.342082239720035) internal successors, (1534), 1143 states have internal predecessors, (1534), 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 20:12:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1534 transitions. [2021-08-25 20:12:35,517 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1534 transitions. Word has length 228 [2021-08-25 20:12:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:35,517 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1534 transitions. [2021-08-25 20:12:35,518 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 20:12:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1534 transitions. [2021-08-25 20:12:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-08-25 20:12:35,520 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:35,520 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:35,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-25 20:12:35,521 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:35,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:35,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1465419185, now seen corresponding path program 1 times [2021-08-25 20:12:35,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:35,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936518811] [2021-08-25 20:12:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 530 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-08-25 20:12:35,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:35,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936518811] [2021-08-25 20:12:35,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936518811] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:35,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:35,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:35,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215824444] [2021-08-25 20:12:35,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:35,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:35,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:35,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,567 INFO L87 Difference]: Start difference. First operand 1144 states and 1534 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 20:12:35,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:35,595 INFO L93 Difference]: Finished difference Result 3355 states and 4503 transitions. [2021-08-25 20:12:35,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:35,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 258 [2021-08-25 20:12:35,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:35,602 INFO L225 Difference]: With dead ends: 3355 [2021-08-25 20:12:35,602 INFO L226 Difference]: Without dead ends: 2248 [2021-08-25 20:12:35,603 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 20:12:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2021-08-25 20:12:35,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2246. [2021-08-25 20:12:35,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 2245 states have (on average 1.3420935412026727) internal successors, (3013), 2245 states have internal predecessors, (3013), 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 20:12:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3013 transitions. [2021-08-25 20:12:35,635 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3013 transitions. Word has length 258 [2021-08-25 20:12:35,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:35,636 INFO L470 AbstractCegarLoop]: Abstraction has 2246 states and 3013 transitions. [2021-08-25 20:12:35,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 20:12:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3013 transitions. [2021-08-25 20:12:35,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-08-25 20:12:35,639 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:35,639 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:35,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 20:12:35,639 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:35,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:35,640 INFO L82 PathProgramCache]: Analyzing trace with hash -434378287, now seen corresponding path program 1 times [2021-08-25 20:12:35,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:35,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178021329] [2021-08-25 20:12:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-08-25 20:12:35,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:35,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178021329] [2021-08-25 20:12:35,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178021329] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:35,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:35,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:35,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965656208] [2021-08-25 20:12:35,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:35,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:35,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:35,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,673 INFO L87 Difference]: Start difference. First operand 2246 states and 3013 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 20:12:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:35,807 INFO L93 Difference]: Finished difference Result 4680 states and 6329 transitions. [2021-08-25 20:12:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:35,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 258 [2021-08-25 20:12:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:35,814 INFO L225 Difference]: With dead ends: 4680 [2021-08-25 20:12:35,814 INFO L226 Difference]: Without dead ends: 2471 [2021-08-25 20:12:35,817 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 20:12:35,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2021-08-25 20:12:35,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2459. [2021-08-25 20:12:35,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2458 states have (on average 1.3246541903986981) internal successors, (3256), 2458 states have internal predecessors, (3256), 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 20:12:35,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3256 transitions. [2021-08-25 20:12:35,859 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3256 transitions. Word has length 258 [2021-08-25 20:12:35,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:35,860 INFO L470 AbstractCegarLoop]: Abstraction has 2459 states and 3256 transitions. [2021-08-25 20:12:35,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 20:12:35,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3256 transitions. [2021-08-25 20:12:35,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-08-25 20:12:35,864 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:35,865 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:35,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-25 20:12:35,865 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:35,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:35,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1948571271, now seen corresponding path program 1 times [2021-08-25 20:12:35,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:35,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053277893] [2021-08-25 20:12:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2021-08-25 20:12:35,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:35,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053277893] [2021-08-25 20:12:35,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053277893] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:35,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:35,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:35,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364948466] [2021-08-25 20:12:35,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:35,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:35,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:35,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,906 INFO L87 Difference]: Start difference. First operand 2459 states and 3256 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 20:12:36,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:36,024 INFO L93 Difference]: Finished difference Result 4992 states and 6632 transitions. [2021-08-25 20:12:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:36,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 282 [2021-08-25 20:12:36,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:36,031 INFO L225 Difference]: With dead ends: 4992 [2021-08-25 20:12:36,031 INFO L226 Difference]: Without dead ends: 2570 [2021-08-25 20:12:36,034 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 20:12:36,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2021-08-25 20:12:36,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2558. [2021-08-25 20:12:36,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2557 states have (on average 1.3179507235041064) internal successors, (3370), 2557 states have internal predecessors, (3370), 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 20:12:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3370 transitions. [2021-08-25 20:12:36,108 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3370 transitions. Word has length 282 [2021-08-25 20:12:36,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:36,108 INFO L470 AbstractCegarLoop]: Abstraction has 2558 states and 3370 transitions. [2021-08-25 20:12:36,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 20:12:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3370 transitions. [2021-08-25 20:12:36,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-08-25 20:12:36,112 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:36,112 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:36,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-25 20:12:36,112 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:36,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:36,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1124753462, now seen corresponding path program 1 times [2021-08-25 20:12:36,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:36,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615144111] [2021-08-25 20:12:36,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:36,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:36,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-08-25 20:12:36,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:36,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615144111] [2021-08-25 20:12:36,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615144111] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:36,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:36,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:36,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936228186] [2021-08-25 20:12:36,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:36,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:36,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:36,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:36,156 INFO L87 Difference]: Start difference. First operand 2558 states and 3370 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 20:12:36,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:36,288 INFO L93 Difference]: Finished difference Result 5379 states and 7220 transitions. [2021-08-25 20:12:36,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:36,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 293 [2021-08-25 20:12:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:36,297 INFO L225 Difference]: With dead ends: 5379 [2021-08-25 20:12:36,297 INFO L226 Difference]: Without dead ends: 2858 [2021-08-25 20:12:36,300 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 20:12:36,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2021-08-25 20:12:36,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2798. [2021-08-25 20:12:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.305684662138005) internal successors, (3652), 2797 states have internal predecessors, (3652), 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 20:12:36,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3652 transitions. [2021-08-25 20:12:36,349 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3652 transitions. Word has length 293 [2021-08-25 20:12:36,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:36,350 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3652 transitions. [2021-08-25 20:12:36,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 20:12:36,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3652 transitions. [2021-08-25 20:12:36,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-08-25 20:12:36,354 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:36,354 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 20:12:36,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-25 20:12:36,354 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:36,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:36,355 INFO L82 PathProgramCache]: Analyzing trace with hash 495610836, now seen corresponding path program 1 times [2021-08-25 20:12:36,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:36,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730040947] [2021-08-25 20:12:36,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:36,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 631 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-08-25 20:12:36,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:36,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730040947] [2021-08-25 20:12:36,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730040947] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:36,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:36,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:36,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307925040] [2021-08-25 20:12:36,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:36,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:36,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:36,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:36,398 INFO L87 Difference]: Start difference. First operand 2798 states and 3652 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 20:12:36,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:36,535 INFO L93 Difference]: Finished difference Result 5643 states and 7358 transitions. [2021-08-25 20:12:36,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:36,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 301 [2021-08-25 20:12:36,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:36,543 INFO L225 Difference]: With dead ends: 5643 [2021-08-25 20:12:36,544 INFO L226 Difference]: Without dead ends: 2864 [2021-08-25 20:12:36,547 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 20:12:36,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2021-08-25 20:12:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2792. [2021-08-25 20:12:36,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2791 states have (on average 1.2955929774274453) internal successors, (3616), 2791 states have internal predecessors, (3616), 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 20:12:36,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3616 transitions. [2021-08-25 20:12:36,599 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3616 transitions. Word has length 301 [2021-08-25 20:12:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:36,600 INFO L470 AbstractCegarLoop]: Abstraction has 2792 states and 3616 transitions. [2021-08-25 20:12:36,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 20:12:36,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3616 transitions. [2021-08-25 20:12:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-08-25 20:12:36,605 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:36,605 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:36,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-25 20:12:36,605 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:36,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:36,606 INFO L82 PathProgramCache]: Analyzing trace with hash -870156213, now seen corresponding path program 1 times [2021-08-25 20:12:36,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:36,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444874489] [2021-08-25 20:12:36,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:36,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:36,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 657 proven. 14 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-08-25 20:12:36,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:36,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444874489] [2021-08-25 20:12:36,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444874489] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:36,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730813868] [2021-08-25 20:12:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:36,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:36,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:36,664 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 20:12:36,670 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 20:12:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:36,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:36,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 657 proven. 14 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-08-25 20:12:37,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730813868] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:37,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:37,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:37,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359301733] [2021-08-25 20:12:37,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:37,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:37,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:37,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:37,825 INFO L87 Difference]: Start difference. First operand 2792 states and 3616 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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 20:12:38,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:38,094 INFO L93 Difference]: Finished difference Result 8410 states and 10878 transitions. [2021-08-25 20:12:38,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-25 20:12:38,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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 332 [2021-08-25 20:12:38,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:38,122 INFO L225 Difference]: With dead ends: 8410 [2021-08-25 20:12:38,122 INFO L226 Difference]: Without dead ends: 5649 [2021-08-25 20:12:38,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5649 states. [2021-08-25 20:12:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5649 to 3680. [2021-08-25 20:12:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 1.281870073389508) internal successors, (4716), 3679 states have internal predecessors, (4716), 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 20:12:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 4716 transitions. [2021-08-25 20:12:38,221 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 4716 transitions. Word has length 332 [2021-08-25 20:12:38,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:38,221 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 4716 transitions. [2021-08-25 20:12:38,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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 20:12:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 4716 transitions. [2021-08-25 20:12:38,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-08-25 20:12:38,227 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:38,227 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:38,250 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 20:12:38,440 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 20:12:38,441 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:38,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:38,441 INFO L82 PathProgramCache]: Analyzing trace with hash -734234391, now seen corresponding path program 1 times [2021-08-25 20:12:38,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:38,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295100159] [2021-08-25 20:12:38,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:38,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 770 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-08-25 20:12:38,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:38,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295100159] [2021-08-25 20:12:38,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295100159] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:38,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:38,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:38,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038350690] [2021-08-25 20:12:38,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:38,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:38,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:38,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:38,508 INFO L87 Difference]: Start difference. First operand 3680 states and 4716 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 20:12:38,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:38,566 INFO L93 Difference]: Finished difference Result 9682 states and 12466 transitions. [2021-08-25 20:12:38,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:38,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 333 [2021-08-25 20:12:38,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:38,577 INFO L225 Difference]: With dead ends: 9682 [2021-08-25 20:12:38,577 INFO L226 Difference]: Without dead ends: 6039 [2021-08-25 20:12:38,582 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 20:12:38,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2021-08-25 20:12:38,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 5695. [2021-08-25 20:12:38,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5695 states, 5694 states have (on average 1.2867931155602388) internal successors, (7327), 5694 states have internal predecessors, (7327), 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 20:12:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 7327 transitions. [2021-08-25 20:12:38,669 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 7327 transitions. Word has length 333 [2021-08-25 20:12:38,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:38,669 INFO L470 AbstractCegarLoop]: Abstraction has 5695 states and 7327 transitions. [2021-08-25 20:12:38,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 20:12:38,670 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 7327 transitions. [2021-08-25 20:12:38,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-08-25 20:12:38,676 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:38,677 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:38,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-25 20:12:38,677 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:38,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:38,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1600541490, now seen corresponding path program 1 times [2021-08-25 20:12:38,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:38,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060407665] [2021-08-25 20:12:38,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:38,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:38,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 733 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:38,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:38,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060407665] [2021-08-25 20:12:38,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060407665] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:38,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:38,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:38,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159517075] [2021-08-25 20:12:38,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:38,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:38,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:38,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:38,730 INFO L87 Difference]: Start difference. First operand 5695 states and 7327 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 20:12:38,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:38,912 INFO L93 Difference]: Finished difference Result 11959 states and 15320 transitions. [2021-08-25 20:12:38,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:38,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 338 [2021-08-25 20:12:38,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:38,922 INFO L225 Difference]: With dead ends: 11959 [2021-08-25 20:12:38,923 INFO L226 Difference]: Without dead ends: 6301 [2021-08-25 20:12:38,929 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 20:12:38,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6301 states. [2021-08-25 20:12:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6301 to 5869. [2021-08-25 20:12:39,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5869 states, 5868 states have (on average 1.2885139740967961) internal successors, (7561), 5868 states have internal predecessors, (7561), 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 20:12:39,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 7561 transitions. [2021-08-25 20:12:39,025 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 7561 transitions. Word has length 338 [2021-08-25 20:12:39,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:39,026 INFO L470 AbstractCegarLoop]: Abstraction has 5869 states and 7561 transitions. [2021-08-25 20:12:39,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 20:12:39,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 7561 transitions. [2021-08-25 20:12:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-08-25 20:12:39,033 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:39,033 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, 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 20:12:39,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-25 20:12:39,034 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:39,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:39,036 INFO L82 PathProgramCache]: Analyzing trace with hash 296800678, now seen corresponding path program 1 times [2021-08-25 20:12:39,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:39,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611135095] [2021-08-25 20:12:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:39,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:39,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 957 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:39,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:39,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611135095] [2021-08-25 20:12:39,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611135095] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:39,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366592812] [2021-08-25 20:12:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:39,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:39,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:39,093 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 20:12:39,123 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 20:12:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:39,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:39,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 957 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:40,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366592812] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:40,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:40,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:40,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664340981] [2021-08-25 20:12:40,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:40,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:40,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:40,319 INFO L87 Difference]: Start difference. First operand 5869 states and 7561 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 20:12:40,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:40,650 INFO L93 Difference]: Finished difference Result 13204 states and 16946 transitions. [2021-08-25 20:12:40,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:12:40,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 376 [2021-08-25 20:12:40,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:40,661 INFO L225 Difference]: With dead ends: 13204 [2021-08-25 20:12:40,662 INFO L226 Difference]: Without dead ends: 7359 [2021-08-25 20:12:40,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7359 states. [2021-08-25 20:12:40,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7359 to 5989. [2021-08-25 20:12:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5989 states, 5988 states have (on average 1.2762191048764195) internal successors, (7642), 5988 states have internal predecessors, (7642), 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 20:12:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 7642 transitions. [2021-08-25 20:12:40,786 INFO L78 Accepts]: Start accepts. Automaton has 5989 states and 7642 transitions. Word has length 376 [2021-08-25 20:12:40,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:40,787 INFO L470 AbstractCegarLoop]: Abstraction has 5989 states and 7642 transitions. [2021-08-25 20:12:40,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 20:12:40,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5989 states and 7642 transitions. [2021-08-25 20:12:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-08-25 20:12:40,797 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:40,798 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, 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 20:12:40,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-25 20:12:41,012 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,SelfDestructingSolverStorable23 [2021-08-25 20:12:41,013 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:41,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:41,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2142183135, now seen corresponding path program 1 times [2021-08-25 20:12:41,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:41,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539403043] [2021-08-25 20:12:41,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:41,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-08-25 20:12:41,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:41,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539403043] [2021-08-25 20:12:41,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539403043] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:41,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:41,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:41,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294454562] [2021-08-25 20:12:41,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:41,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:41,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:41,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:41,084 INFO L87 Difference]: Start difference. First operand 5989 states and 7642 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 20:12:41,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:41,256 INFO L93 Difference]: Finished difference Result 11539 states and 14488 transitions. [2021-08-25 20:12:41,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:41,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 415 [2021-08-25 20:12:41,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:41,263 INFO L225 Difference]: With dead ends: 11539 [2021-08-25 20:12:41,263 INFO L226 Difference]: Without dead ends: 3293 [2021-08-25 20:12:41,271 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 20:12:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-08-25 20:12:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3227. [2021-08-25 20:12:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3226 states have (on average 1.2625542467451953) internal successors, (4073), 3226 states have internal predecessors, (4073), 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 20:12:41,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4073 transitions. [2021-08-25 20:12:41,326 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4073 transitions. Word has length 415 [2021-08-25 20:12:41,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:41,327 INFO L470 AbstractCegarLoop]: Abstraction has 3227 states and 4073 transitions. [2021-08-25 20:12:41,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 20:12:41,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4073 transitions. [2021-08-25 20:12:41,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2021-08-25 20:12:41,336 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:41,337 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:41,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-25 20:12:41,337 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:41,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:41,338 INFO L82 PathProgramCache]: Analyzing trace with hash -2025530628, now seen corresponding path program 1 times [2021-08-25 20:12:41,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:41,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984679362] [2021-08-25 20:12:41,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:41,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1481 proven. 14 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2021-08-25 20:12:41,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:41,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984679362] [2021-08-25 20:12:41,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984679362] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:41,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912006422] [2021-08-25 20:12:41,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:41,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:41,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:41,429 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 20:12:41,430 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 20:12:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:41,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:41,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:43,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1481 proven. 14 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2021-08-25 20:12:43,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912006422] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:43,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:43,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:43,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277302249] [2021-08-25 20:12:43,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:43,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:43,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:43,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:43,095 INFO L87 Difference]: Start difference. First operand 3227 states and 4073 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 20:12:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:43,279 INFO L93 Difference]: Finished difference Result 3861 states and 4882 transitions. [2021-08-25 20:12:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:12:43,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 482 [2021-08-25 20:12:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:43,280 INFO L225 Difference]: With dead ends: 3861 [2021-08-25 20:12:43,280 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 20:12:43,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:43,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 20:12:43,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 20:12:43,284 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 20:12:43,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 20:12:43,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 482 [2021-08-25 20:12:43,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:43,284 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 20:12:43,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 20:12:43,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 20:12:43,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 20:12:43,287 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:12:43,306 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 20:12:43,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:43,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 20:12:43,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:43,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:44,453 INFO L857 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2021-08-25 20:12:44,453 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 269) no Hoare annotation was computed. [2021-08-25 20:12:44,453 INFO L857 garLoopResultBuilder]: For program point L267-2(lines 203 486) no Hoare annotation was computed. [2021-08-25 20:12:44,453 INFO L857 garLoopResultBuilder]: For program point L433(lines 433 435) no Hoare annotation was computed. [2021-08-25 20:12:44,453 INFO L857 garLoopResultBuilder]: For program point L334(lines 334 336) no Hoare annotation was computed. [2021-08-25 20:12:44,453 INFO L860 garLoopResultBuilder]: At program point L202(lines 201 489) the Hoare annotation is: true [2021-08-25 20:12:44,454 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 499) no Hoare annotation was computed. [2021-08-25 20:12:44,454 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 510) no Hoare annotation was computed. [2021-08-25 20:12:44,454 INFO L857 garLoopResultBuilder]: For program point L103(lines 103 521) no Hoare annotation was computed. [2021-08-25 20:12:44,454 INFO L853 garLoopResultBuilder]: At program point L170(lines 166 500) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-25 20:12:44,454 INFO L853 garLoopResultBuilder]: At program point L104(lines 103 521) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2021-08-25 20:12:44,454 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2021-08-25 20:12:44,454 INFO L857 garLoopResultBuilder]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2021-08-25 20:12:44,455 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 440) no Hoare annotation was computed. [2021-08-25 20:12:44,455 INFO L857 garLoopResultBuilder]: For program point L436-2(lines 436 440) no Hoare annotation was computed. [2021-08-25 20:12:44,455 INFO L857 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2021-08-25 20:12:44,455 INFO L857 garLoopResultBuilder]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2021-08-25 20:12:44,455 INFO L857 garLoopResultBuilder]: For program point L172(lines 172 498) no Hoare annotation was computed. [2021-08-25 20:12:44,455 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 509) no Hoare annotation was computed. [2021-08-25 20:12:44,455 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 520) no Hoare annotation was computed. [2021-08-25 20:12:44,456 INFO L853 garLoopResultBuilder]: At program point L140(lines 136 510) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-08-25 20:12:44,456 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 308) no Hoare annotation was computed. [2021-08-25 20:12:44,456 INFO L857 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2021-08-25 20:12:44,456 INFO L857 garLoopResultBuilder]: For program point L240(lines 240 243) no Hoare annotation was computed. [2021-08-25 20:12:44,456 INFO L857 garLoopResultBuilder]: For program point L306-2(lines 203 486) no Hoare annotation was computed. [2021-08-25 20:12:44,456 INFO L857 garLoopResultBuilder]: For program point L273-2(lines 273 277) no Hoare annotation was computed. [2021-08-25 20:12:44,456 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 408) no Hoare annotation was computed. [2021-08-25 20:12:44,456 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 375) no Hoare annotation was computed. [2021-08-25 20:12:44,457 INFO L853 garLoopResultBuilder]: At program point L208(lines 106 520) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) [2021-08-25 20:12:44,457 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 497) no Hoare annotation was computed. [2021-08-25 20:12:44,457 INFO L857 garLoopResultBuilder]: For program point L142(lines 142 508) no Hoare annotation was computed. [2021-08-25 20:12:44,457 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 519) no Hoare annotation was computed. [2021-08-25 20:12:44,457 INFO L853 garLoopResultBuilder]: At program point L176(lines 172 498) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-25 20:12:44,457 INFO L857 garLoopResultBuilder]: For program point L474(lines 474 476) no Hoare annotation was computed. [2021-08-25 20:12:44,457 INFO L857 garLoopResultBuilder]: For program point L474-2(lines 474 476) no Hoare annotation was computed. [2021-08-25 20:12:44,457 INFO L860 garLoopResultBuilder]: At program point L541(lines 99 542) the Hoare annotation is: true [2021-08-25 20:12:44,458 INFO L857 garLoopResultBuilder]: For program point L178(lines 178 496) no Hoare annotation was computed. [2021-08-25 20:12:44,458 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 507) no Hoare annotation was computed. [2021-08-25 20:12:44,458 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 518) no Hoare annotation was computed. [2021-08-25 20:12:44,458 INFO L853 garLoopResultBuilder]: At program point L146(lines 142 508) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-25 20:12:44,458 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 215) no Hoare annotation was computed. [2021-08-25 20:12:44,458 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 215) no Hoare annotation was computed. [2021-08-25 20:12:44,458 INFO L857 garLoopResultBuilder]: For program point L181(lines 181 495) no Hoare annotation was computed. [2021-08-25 20:12:44,458 INFO L857 garLoopResultBuilder]: For program point L148(lines 148 506) no Hoare annotation was computed. [2021-08-25 20:12:44,459 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 517) no Hoare annotation was computed. [2021-08-25 20:12:44,459 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 481) no Hoare annotation was computed. [2021-08-25 20:12:44,459 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 457) no Hoare annotation was computed. [2021-08-25 20:12:44,459 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 427) no Hoare annotation was computed. [2021-08-25 20:12:44,459 INFO L857 garLoopResultBuilder]: For program point L413-1(lines 413 427) no Hoare annotation was computed. [2021-08-25 20:12:44,459 INFO L857 garLoopResultBuilder]: For program point L446-2(lines 446 457) no Hoare annotation was computed. [2021-08-25 20:12:44,459 INFO L857 garLoopResultBuilder]: For program point L314(lines 314 317) no Hoare annotation was computed. [2021-08-25 20:12:44,459 INFO L853 garLoopResultBuilder]: At program point L182(lines 178 496) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-25 20:12:44,460 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 548) no Hoare annotation was computed. [2021-08-25 20:12:44,460 INFO L857 garLoopResultBuilder]: For program point L546-2(lines 546 548) no Hoare annotation was computed. [2021-08-25 20:12:44,460 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 351) no Hoare annotation was computed. [2021-08-25 20:12:44,460 INFO L857 garLoopResultBuilder]: For program point L184(lines 184 494) no Hoare annotation was computed. [2021-08-25 20:12:44,460 INFO L857 garLoopResultBuilder]: For program point L151(lines 151 505) no Hoare annotation was computed. [2021-08-25 20:12:44,460 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 516) no Hoare annotation was computed. [2021-08-25 20:12:44,460 INFO L857 garLoopResultBuilder]: For program point L383(lines 383 385) no Hoare annotation was computed. [2021-08-25 20:12:44,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 20:12:44,461 INFO L857 garLoopResultBuilder]: For program point L284(lines 284 298) no Hoare annotation was computed. [2021-08-25 20:12:44,461 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 221) no Hoare annotation was computed. [2021-08-25 20:12:44,461 INFO L857 garLoopResultBuilder]: For program point L284-2(lines 284 298) no Hoare annotation was computed. [2021-08-25 20:12:44,461 INFO L853 garLoopResultBuilder]: At program point L152(lines 148 506) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-25 20:12:44,461 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 92) no Hoare annotation was computed. [2021-08-25 20:12:44,461 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-08-25 20:12:44,461 INFO L857 garLoopResultBuilder]: For program point L252(lines 252 254) no Hoare annotation was computed. [2021-08-25 20:12:44,461 INFO L857 garLoopResultBuilder]: For program point L252-2(lines 203 486) no Hoare annotation was computed. [2021-08-25 20:12:44,462 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 454) no Hoare annotation was computed. [2021-08-25 20:12:44,462 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 493) no Hoare annotation was computed. [2021-08-25 20:12:44,462 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 504) no Hoare annotation was computed. [2021-08-25 20:12:44,462 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 515) no Hoare annotation was computed. [2021-08-25 20:12:44,462 INFO L860 garLoopResultBuilder]: At program point L551(lines 12 553) the Hoare annotation is: true [2021-08-25 20:12:44,462 INFO L853 garLoopResultBuilder]: At program point L188(lines 184 494) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2021-08-25 20:12:44,462 INFO L853 garLoopResultBuilder]: At program point L122(lines 118 516) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-08-25 20:12:44,462 INFO L857 garLoopResultBuilder]: For program point L89(lines 89 91) no Hoare annotation was computed. [2021-08-25 20:12:44,463 INFO L857 garLoopResultBuilder]: For program point L89-2(lines 86 92) no Hoare annotation was computed. [2021-08-25 20:12:44,463 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 294) no Hoare annotation was computed. [2021-08-25 20:12:44,463 INFO L853 garLoopResultBuilder]: At program point L487(lines 100 540) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse4 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse6 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse7 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse5 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse8 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 .cse1 .cse2 (<= 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 .cse3 .cse4 .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2 .cse5) (and .cse0 .cse1 .cse6 .cse7 .cse5) (and .cse8 .cse5 .cse9 .cse10) (and .cse2 .cse5 .cse11) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse5 .cse9) (and .cse7 .cse11) (and .cse3 .cse4 .cse6 .cse7 .cse5) (and .cse2 .cse8 .cse10))) [2021-08-25 20:12:44,463 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 324) no Hoare annotation was computed. [2021-08-25 20:12:44,463 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 20:12:44,463 INFO L857 garLoopResultBuilder]: For program point L190(lines 190 492) no Hoare annotation was computed. [2021-08-25 20:12:44,464 INFO L857 garLoopResultBuilder]: For program point L157(lines 157 503) no Hoare annotation was computed. [2021-08-25 20:12:44,464 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 514) no Hoare annotation was computed. [2021-08-25 20:12:44,464 INFO L857 garLoopResultBuilder]: For program point L389(lines 389 393) no Hoare annotation was computed. [2021-08-25 20:12:44,464 INFO L853 garLoopResultBuilder]: At program point L323(lines 77 552) the Hoare annotation is: false [2021-08-25 20:12:44,464 INFO L857 garLoopResultBuilder]: For program point L389-2(lines 203 486) no Hoare annotation was computed. [2021-08-25 20:12:44,464 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 235) no Hoare annotation was computed. [2021-08-25 20:12:44,464 INFO L857 garLoopResultBuilder]: For program point L224-2(lines 203 486) no Hoare annotation was computed. [2021-08-25 20:12:44,464 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 538) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 293) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L291-2(lines 286 298) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 537) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 360) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 327) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L226(lines 226 229) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 491) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L160(lines 160 502) no Hoare annotation was computed. [2021-08-25 20:12:44,465 INFO L857 garLoopResultBuilder]: For program point L127(lines 127 513) no Hoare annotation was computed. [2021-08-25 20:12:44,466 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 98) no Hoare annotation was computed. [2021-08-25 20:12:44,466 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 20:12:44,466 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 529) no Hoare annotation was computed. [2021-08-25 20:12:44,466 INFO L857 garLoopResultBuilder]: For program point L524-2(lines 523 537) no Hoare annotation was computed. [2021-08-25 20:12:44,466 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 262) no Hoare annotation was computed. [2021-08-25 20:12:44,466 INFO L853 garLoopResultBuilder]: At program point L194(lines 190 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (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) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2021-08-25 20:12:44,466 INFO L853 garLoopResultBuilder]: At program point L128(lines 124 514) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-08-25 20:12:44,467 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 97) no Hoare annotation was computed. [2021-08-25 20:12:44,467 INFO L857 garLoopResultBuilder]: For program point L526(lines 526 528) no Hoare annotation was computed. [2021-08-25 20:12:44,467 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 490) no Hoare annotation was computed. [2021-08-25 20:12:44,467 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 501) no Hoare annotation was computed. [2021-08-25 20:12:44,467 INFO L857 garLoopResultBuilder]: For program point L130(lines 130 512) no Hoare annotation was computed. [2021-08-25 20:12:44,467 INFO L857 garLoopResultBuilder]: For program point L362(lines 362 367) no Hoare annotation was computed. [2021-08-25 20:12:44,467 INFO L857 garLoopResultBuilder]: For program point L362-2(lines 362 367) no Hoare annotation was computed. [2021-08-25 20:12:44,467 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 233) no Hoare annotation was computed. [2021-08-25 20:12:44,467 INFO L853 garLoopResultBuilder]: At program point L197(lines 196 490) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (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) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2021-08-25 20:12:44,468 INFO L853 garLoopResultBuilder]: At program point L164(lines 154 504) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-25 20:12:44,468 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 20:12:44,468 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 550) no Hoare annotation was computed. [2021-08-25 20:12:44,468 INFO L857 garLoopResultBuilder]: For program point L462-1(lines 462 464) no Hoare annotation was computed. [2021-08-25 20:12:44,468 INFO L860 garLoopResultBuilder]: At program point L562(lines 554 564) the Hoare annotation is: true [2021-08-25 20:12:44,468 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 489) no Hoare annotation was computed. [2021-08-25 20:12:44,468 INFO L857 garLoopResultBuilder]: For program point L166(lines 166 500) no Hoare annotation was computed. [2021-08-25 20:12:44,469 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 511) no Hoare annotation was computed. [2021-08-25 20:12:44,469 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 77 552) no Hoare annotation was computed. [2021-08-25 20:12:44,469 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 401) no Hoare annotation was computed. [2021-08-25 20:12:44,469 INFO L860 garLoopResultBuilder]: At program point L200(lines 199 489) the Hoare annotation is: true [2021-08-25 20:12:44,469 INFO L853 garLoopResultBuilder]: At program point L134(lines 130 512) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-08-25 20:12:44,469 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-08-25 20:12:44,473 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:12:44,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:12:44 BoogieIcfgContainer [2021-08-25 20:12:44,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:12:44,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:12:44,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:12:44,487 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:12:44,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:32" (3/4) ... [2021-08-25 20:12:44,490 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 20:12:44,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 20:12:44,502 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 20:12:44,502 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:12:44,503 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:12:44,552 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:12:44,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:12:44,553 INFO L168 Benchmark]: Toolchain (without parser) took 12910.93 ms. Allocated memory was 65.0 MB in the beginning and 534.8 MB in the end (delta: 469.8 MB). Free memory was 44.1 MB in the beginning and 390.8 MB in the end (delta: -346.7 MB). Peak memory consumption was 123.6 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:44,553 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 65.0 MB. Free memory is still 46.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:12:44,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.51 ms. Allocated memory is still 65.0 MB. Free memory was 43.8 MB in the beginning and 44.7 MB in the end (delta: -911.9 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:44,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.22 ms. Allocated memory is still 65.0 MB. Free memory was 44.5 MB in the beginning and 41.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:44,554 INFO L168 Benchmark]: Boogie Preprocessor took 34.92 ms. Allocated memory is still 65.0 MB. Free memory was 41.9 MB in the beginning and 40.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:44,554 INFO L168 Benchmark]: RCFGBuilder took 554.35 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 39.8 MB in the beginning and 41.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:44,555 INFO L168 Benchmark]: TraceAbstraction took 11913.87 ms. Allocated memory was 79.7 MB in the beginning and 534.8 MB in the end (delta: 455.1 MB). Free memory was 40.6 MB in the beginning and 401.3 MB in the end (delta: -360.7 MB). Peak memory consumption was 316.4 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:44,555 INFO L168 Benchmark]: Witness Printer took 65.35 ms. Allocated memory is still 534.8 MB. Free memory was 400.3 MB in the beginning and 390.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:44,556 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 65.0 MB. Free memory is still 46.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.51 ms. Allocated memory is still 65.0 MB. Free memory was 43.8 MB in the beginning and 44.7 MB in the end (delta: -911.9 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.22 ms. Allocated memory is still 65.0 MB. Free memory was 44.5 MB in the beginning and 41.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.92 ms. Allocated memory is still 65.0 MB. Free memory was 41.9 MB in the beginning and 40.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 554.35 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 39.8 MB in the beginning and 41.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11913.87 ms. Allocated memory was 79.7 MB in the beginning and 534.8 MB in the end (delta: 455.1 MB). Free memory was 40.6 MB in the beginning and 401.3 MB in the end (delta: -360.7 MB). Peak memory consumption was 316.4 MB. Max. memory is 16.1 GB. * Witness Printer took 65.35 ms. Allocated memory is still 534.8 MB. Free memory was 400.3 MB in the beginning and 390.8 MB 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: 550]: 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, 128 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11864.5ms, OverallIterations: 26, TraceHistogramMax: 18, EmptinessCheckTime: 92.8ms, AutomataDifference: 3549.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 947.2ms, InitialAbstractionConstructionTime: 7.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4934 SDtfs, 1570 SDslu, 2831 SDs, 0 SdLazy, 2491 SolverSat, 457 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1863.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1274 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5989occurred 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: 954.2ms AutomataMinimizationTime, 26 MinimizatonAttempts, 4432 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 177 NumberOfFragments, 434 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9786 FormulaSimplificationTreeSizeReduction, 275.4ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 1289 FormulaSimplificationTreeSizeReductionInter, 660.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 145.1ms SsaConstructionTime, 617.3ms SatisfiabilityAnalysisTime, 4016.9ms InterpolantComputationTime, 6603 NumberOfCodeBlocks, 6603 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 6574 ConstructedInterpolants, 0 QuantifiedInterpolants, 8392 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2139 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 29 InterpolantComputations, 23 PerfectInterpolantSequences, 23541/23607 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: 154]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((4352 <= s__state && blastFlag == 2) && s__hit == 0) && s__state <= 4528 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 1) && s__state <= 4528 - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: blastFlag == 0 && s__state <= 4352 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((4352 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528 - InvariantResult [Line: 196]: 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) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) || ((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (((((((((((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3) || (s__state == 4384 && blastFlag == 1)) || ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2)) || (blastFlag == 0 && s__state == 4368)) || ((4400 == s__state && 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)) || (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528)) || ((blastFlag == 2 && s__hit == 0) && s__state <= 3)) || ((s__state == 4416 && s__hit == 0) && blastFlag <= 4)) || (s__s3__tmp__next_state___0 <= 4560 && s__state <= 3)) || ((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 0) && s__state <= 4528 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((s__state <= 4560 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4)) || ((s__state <= 4560 && blastFlag == 2) && 4432 <= s__state) - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) RESULT: Ultimate proved your program to be correct! [2021-08-25 20:12:44,597 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...