./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_3.cil-3.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 6fb7e842c9cc7c34f1770862f1d9d5e094000777 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:12:29,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:12:29,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:12:29,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:12:29,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:12:29,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:12:29,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:12:29,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:12:29,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:12:29,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:12:29,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:12:29,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:12:29,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:12:29,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:12:29,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:12:29,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:12:29,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:12:29,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:12:29,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:12:29,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:12:29,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:12:29,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:12:29,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:12:29,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:12:29,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:12:29,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:12:29,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:12:29,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:12:29,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:12:29,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:12:29,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:12:29,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:12:29,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:12:29,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:12:29,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:12:29,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:12:29,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:12:29,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:12:29,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:12:29,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:12:29,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:12:29,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:12:29,665 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:12:29,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:12:29,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:12:29,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:12:29,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:12:29,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:12:29,667 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:12:29,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:12:29,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:12:29,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:12:29,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:12:29,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:12:29,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:12:29,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:12:29,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:12:29,668 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:12:29,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:12:29,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:12:29,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:12:29,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:12:29,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:12:29,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:12:29,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:12:29,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:12:29,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:12:29,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:12:29,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:12:29,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:12:29,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:12:29,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:12:29,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fb7e842c9cc7c34f1770862f1d9d5e094000777 [2021-08-25 20:12:29,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:12:29,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:12:29,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:12:29,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:12:29,937 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:12:29,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2021-08-25 20:12:30,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e7be2291/e6623c99c05e4f2b9b8977ff8e1e4b5b/FLAG3f3c99067 [2021-08-25 20:12:30,411 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:12:30,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2021-08-25 20:12:30,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e7be2291/e6623c99c05e4f2b9b8977ff8e1e4b5b/FLAG3f3c99067 [2021-08-25 20:12:30,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e7be2291/e6623c99c05e4f2b9b8977ff8e1e4b5b [2021-08-25 20:12:30,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:12:30,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:12:30,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:12:30,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:12:30,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:12:30,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d93913e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30, skipping insertion in model container [2021-08-25 20:12:30,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:12:30,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:12:30,671 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_3.cil-3.c[37065,37078] [2021-08-25 20:12:30,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:12:30,681 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:12:30,721 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_3.cil-3.c[37065,37078] [2021-08-25 20:12:30,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:12:30,736 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:12:30,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30 WrapperNode [2021-08-25 20:12:30,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:12:30,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:12:30,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:12:30,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:12:30,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:12:30,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:12:30,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:12:30,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:12:30,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:12:30,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:12:30,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:12:30,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:12:30,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (1/1) ... [2021-08-25 20:12:30,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:12:30,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:30,858 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 20:12:30,872 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 20:12:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:12:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:12:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:12:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:12:31,030 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-25 20:12:31,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-25 20:12:31,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-25 20:12:31,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:12:31,440 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 20:12:31,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:31 BoogieIcfgContainer [2021-08-25 20:12:31,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:12:31,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:12:31,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:12:31,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:12:31,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:12:30" (1/3) ... [2021-08-25 20:12:31,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c25477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:12:31, skipping insertion in model container [2021-08-25 20:12:31,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:12:30" (2/3) ... [2021-08-25 20:12:31,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c25477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:12:31, skipping insertion in model container [2021-08-25 20:12:31,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:31" (3/3) ... [2021-08-25 20:12:31,448 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.c [2021-08-25 20:12:31,453 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:12:31,453 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:12:31,494 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:12:31,499 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 20:12:31,499 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:12:31,512 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 20:12:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-25 20:12:31,517 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:31,517 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 20:12:31,518 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:31,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:31,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2021-08-25 20:12:31,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:31,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244986435] [2021-08-25 20:12:31,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:31,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:31,667 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 20:12:31,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:31,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244986435] [2021-08-25 20:12:31,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244986435] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:31,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:31,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:31,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106665488] [2021-08-25 20:12:31,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:31,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:31,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:31,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:31,688 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 20:12:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:31,829 INFO L93 Difference]: Finished difference Result 252 states and 427 transitions. [2021-08-25 20:12:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:31,831 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 20:12:31,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:31,838 INFO L225 Difference]: With dead ends: 252 [2021-08-25 20:12:31,839 INFO L226 Difference]: Without dead ends: 115 [2021-08-25 20:12:31,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:31,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-08-25 20:12:31,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-08-25 20:12:31,867 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 20:12:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-08-25 20:12:31,873 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-08-25 20:12:31,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:31,874 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-08-25 20:12:31,875 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 20:12:31,875 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-08-25 20:12:31,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-25 20:12:31,877 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:31,878 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 20:12:31,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:12:31,880 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:31,881 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2021-08-25 20:12:31,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:31,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719871633] [2021-08-25 20:12:31,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:31,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:31,944 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 20:12:31,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:31,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719871633] [2021-08-25 20:12:31,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719871633] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:31,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:31,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:31,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089453925] [2021-08-25 20:12:31,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:31,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:31,947 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 20:12:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:32,053 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2021-08-25 20:12:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:32,054 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 20:12:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:32,058 INFO L225 Difference]: With dead ends: 238 [2021-08-25 20:12:32,058 INFO L226 Difference]: Without dead ends: 133 [2021-08-25 20:12:32,059 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-08-25 20:12:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2021-08-25 20:12:32,073 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 20:12:32,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2021-08-25 20:12:32,074 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2021-08-25 20:12:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:32,075 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2021-08-25 20:12:32,075 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 20:12:32,075 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2021-08-25 20:12:32,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-25 20:12:32,076 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,076 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 20:12:32,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 20:12:32,076 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,077 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2021-08-25 20:12:32,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41646915] [2021-08-25 20:12:32,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:32,123 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 20:12:32,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:32,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41646915] [2021-08-25 20:12:32,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41646915] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:32,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:32,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:32,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500839869] [2021-08-25 20:12:32,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:32,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,126 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 20:12:32,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:32,209 INFO L93 Difference]: Finished difference Result 272 states and 408 transitions. [2021-08-25 20:12:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:32,209 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 20:12:32,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:32,210 INFO L225 Difference]: With dead ends: 272 [2021-08-25 20:12:32,210 INFO L226 Difference]: Without dead ends: 152 [2021-08-25 20:12:32,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-25 20:12:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2021-08-25 20:12:32,215 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 20:12:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2021-08-25 20:12:32,216 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2021-08-25 20:12:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:32,216 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2021-08-25 20:12:32,217 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 20:12:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2021-08-25 20:12:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-25 20:12:32,218 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,218 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 20:12:32,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 20:12:32,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1238030766, now seen corresponding path program 1 times [2021-08-25 20:12:32,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297940499] [2021-08-25 20:12:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:32,289 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 20:12:32,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:32,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297940499] [2021-08-25 20:12:32,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297940499] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:32,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:32,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:32,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401290293] [2021-08-25 20:12:32,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:32,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:32,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:32,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,290 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 20:12:32,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:32,431 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2021-08-25 20:12:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:32,431 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 20:12:32,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:32,432 INFO L225 Difference]: With dead ends: 335 [2021-08-25 20:12:32,432 INFO L226 Difference]: Without dead ends: 197 [2021-08-25 20:12:32,433 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-08-25 20:12:32,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2021-08-25 20:12:32,438 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 20:12:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2021-08-25 20:12:32,439 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2021-08-25 20:12:32,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:32,439 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2021-08-25 20:12:32,439 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 20:12:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2021-08-25 20:12:32,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-25 20:12:32,440 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,441 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 20:12:32,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 20:12:32,441 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1251498196, now seen corresponding path program 1 times [2021-08-25 20:12:32,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265130173] [2021-08-25 20:12:32,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:32,478 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 20:12:32,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:32,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265130173] [2021-08-25 20:12:32,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265130173] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:32,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:32,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:32,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59356645] [2021-08-25 20:12:32,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:32,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:32,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,480 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 20:12:32,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:32,574 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2021-08-25 20:12:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:32,574 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 20:12:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:32,575 INFO L225 Difference]: With dead ends: 390 [2021-08-25 20:12:32,576 INFO L226 Difference]: Without dead ends: 212 [2021-08-25 20:12:32,576 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 20:12:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-08-25 20:12:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2021-08-25 20:12:32,581 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 20:12:32,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2021-08-25 20:12:32,582 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2021-08-25 20:12:32,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:32,582 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2021-08-25 20:12:32,582 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 20:12:32,582 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2021-08-25 20:12:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-25 20:12:32,583 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,583 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 20:12:32,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 20:12:32,584 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1821092144, now seen corresponding path program 1 times [2021-08-25 20:12:32,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122267840] [2021-08-25 20:12:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:32,647 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 20:12:32,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:32,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122267840] [2021-08-25 20:12:32,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122267840] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:32,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:32,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:32,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266412004] [2021-08-25 20:12:32,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:32,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:32,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:32,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,649 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 20:12:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:32,744 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2021-08-25 20:12:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:32,744 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 20:12:32,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:32,745 INFO L225 Difference]: With dead ends: 428 [2021-08-25 20:12:32,745 INFO L226 Difference]: Without dead ends: 231 [2021-08-25 20:12:32,746 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-25 20:12:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2021-08-25 20:12:32,749 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 20:12:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2021-08-25 20:12:32,750 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2021-08-25 20:12:32,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:32,750 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-08-25 20:12:32,751 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 20:12:32,751 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2021-08-25 20:12:32,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-25 20:12:32,751 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,752 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 20:12:32,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 20:12:32,752 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1901861672, now seen corresponding path program 1 times [2021-08-25 20:12:32,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750430219] [2021-08-25 20:12:32,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:32,799 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 20:12:32,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:32,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750430219] [2021-08-25 20:12:32,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750430219] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:32,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:32,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:32,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808471732] [2021-08-25 20:12:32,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:32,802 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 20:12:32,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,803 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 20:12:32,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:32,832 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2021-08-25 20:12:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:32,832 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 20:12:32,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:32,835 INFO L225 Difference]: With dead ends: 661 [2021-08-25 20:12:32,835 INFO L226 Difference]: Without dead ends: 443 [2021-08-25 20:12:32,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-08-25 20:12:32,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-08-25 20:12:32,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.3710407239819005) internal successors, (606), 442 states have internal predecessors, (606), 0 states have call successors, (0), 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 20:12:32,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2021-08-25 20:12:32,851 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2021-08-25 20:12:32,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:32,851 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2021-08-25 20:12:32,852 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 20:12:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2021-08-25 20:12:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-08-25 20:12:32,853 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,853 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:32,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 20:12:32,854 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,854 INFO L82 PathProgramCache]: Analyzing trace with hash 837467901, now seen corresponding path program 1 times [2021-08-25 20:12:32,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717416335] [2021-08-25 20:12:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:32,934 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 20:12:32,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:32,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717416335] [2021-08-25 20:12:32,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717416335] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:32,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:32,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:32,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499725535] [2021-08-25 20:12:32,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:32,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:32,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:32,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,936 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 20:12:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:32,955 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2021-08-25 20:12:32,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:32,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-08-25 20:12:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:32,958 INFO L225 Difference]: With dead ends: 897 [2021-08-25 20:12:32,958 INFO L226 Difference]: Without dead ends: 464 [2021-08-25 20:12:32,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:32,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-08-25 20:12:32,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2021-08-25 20:12:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.367170626349892) internal successors, (633), 463 states have internal predecessors, (633), 0 states have call successors, (0), 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 20:12:32,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2021-08-25 20:12:32,966 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 106 [2021-08-25 20:12:32,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:32,967 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2021-08-25 20:12:32,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 20:12:32,967 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2021-08-25 20:12:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-08-25 20:12:32,968 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:32,969 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:32,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 20:12:32,969 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:32,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1077707647, now seen corresponding path program 1 times [2021-08-25 20:12:32,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:32,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101765749] [2021-08-25 20:12:32,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:32,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,028 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 20:12:33,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101765749] [2021-08-25 20:12:33,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101765749] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130520949] [2021-08-25 20:12:33,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,032 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 20:12:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,054 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2021-08-25 20:12:33,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-08-25 20:12:33,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,057 INFO L225 Difference]: With dead ends: 945 [2021-08-25 20:12:33,058 INFO L226 Difference]: Without dead ends: 491 [2021-08-25 20:12:33,061 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-08-25 20:12:33,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-08-25 20:12:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.3612244897959183) internal successors, (667), 490 states have internal predecessors, (667), 0 states have call successors, (0), 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 20:12:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2021-08-25 20:12:33,072 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2021-08-25 20:12:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,073 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2021-08-25 20:12:33,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 20:12:33,073 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2021-08-25 20:12:33,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-25 20:12:33,074 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,074 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 20:12:33,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 20:12:33,074 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,075 INFO L82 PathProgramCache]: Analyzing trace with hash -2015927886, now seen corresponding path program 1 times [2021-08-25 20:12:33,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064969424] [2021-08-25 20:12:33,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,118 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 20:12:33,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064969424] [2021-08-25 20:12:33,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064969424] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678812618] [2021-08-25 20:12:33,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,121 INFO L87 Difference]: Start difference. First operand 491 states and 667 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 20:12:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,142 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2021-08-25 20:12:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,142 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 20:12:33,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,145 INFO L225 Difference]: With dead ends: 709 [2021-08-25 20:12:33,145 INFO L226 Difference]: Without dead ends: 707 [2021-08-25 20:12:33,145 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-08-25 20:12:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2021-08-25 20:12:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 706 states have (on average 1.36685552407932) internal successors, (965), 706 states have internal predecessors, (965), 0 states have call successors, (0), 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 20:12:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2021-08-25 20:12:33,159 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2021-08-25 20:12:33,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,159 INFO L470 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2021-08-25 20:12:33,159 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 20:12:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2021-08-25 20:12:33,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-08-25 20:12:33,161 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,161 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:33,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 20:12:33,162 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1870688019, now seen corresponding path program 1 times [2021-08-25 20:12:33,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765716871] [2021-08-25 20:12:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-08-25 20:12:33,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765716871] [2021-08-25 20:12:33,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765716871] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348017635] [2021-08-25 20:12:33,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,209 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 20:12:33,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,309 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2021-08-25 20:12:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2021-08-25 20:12:33,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,313 INFO L225 Difference]: With dead ends: 1530 [2021-08-25 20:12:33,313 INFO L226 Difference]: Without dead ends: 857 [2021-08-25 20:12:33,314 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 20:12:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2021-08-25 20:12:33,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2021-08-25 20:12:33,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 823 states have (on average 1.402187120291616) internal successors, (1154), 823 states have internal predecessors, (1154), 0 states have call successors, (0), 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 20:12:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2021-08-25 20:12:33,326 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 162 [2021-08-25 20:12:33,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,327 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2021-08-25 20:12:33,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 20:12:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2021-08-25 20:12:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-08-25 20:12:33,329 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,329 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:33,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-25 20:12:33,329 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1491644371, now seen corresponding path program 1 times [2021-08-25 20:12:33,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206413541] [2021-08-25 20:12:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-08-25 20:12:33,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206413541] [2021-08-25 20:12:33,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206413541] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363443605] [2021-08-25 20:12:33,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,378 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 20:12:33,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,500 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2021-08-25 20:12:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 189 [2021-08-25 20:12:33,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,503 INFO L225 Difference]: With dead ends: 1892 [2021-08-25 20:12:33,503 INFO L226 Difference]: Without dead ends: 1054 [2021-08-25 20:12:33,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2021-08-25 20:12:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2021-08-25 20:12:33,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1012 states have (on average 1.3893280632411067) internal successors, (1406), 1012 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:33,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2021-08-25 20:12:33,519 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2021-08-25 20:12:33,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,520 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2021-08-25 20:12:33,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 20:12:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2021-08-25 20:12:33,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-08-25 20:12:33,522 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,522 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:33,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 20:12:33,522 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,523 INFO L82 PathProgramCache]: Analyzing trace with hash -637948485, now seen corresponding path program 1 times [2021-08-25 20:12:33,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962001960] [2021-08-25 20:12:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-08-25 20:12:33,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962001960] [2021-08-25 20:12:33,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962001960] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316261005] [2021-08-25 20:12:33,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,562 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:33,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,692 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2021-08-25 20:12:33,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-08-25 20:12:33,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,696 INFO L225 Difference]: With dead ends: 2148 [2021-08-25 20:12:33,696 INFO L226 Difference]: Without dead ends: 1127 [2021-08-25 20:12:33,697 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2021-08-25 20:12:33,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2021-08-25 20:12:33,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1087 states have (on average 1.3817847286108556) internal successors, (1502), 1087 states have internal predecessors, (1502), 0 states have call successors, (0), 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 20:12:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2021-08-25 20:12:33,714 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2021-08-25 20:12:33,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,715 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2021-08-25 20:12:33,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2021-08-25 20:12:33,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-08-25 20:12:33,717 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,717 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:33,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-25 20:12:33,718 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,718 INFO L82 PathProgramCache]: Analyzing trace with hash 668090344, now seen corresponding path program 1 times [2021-08-25 20:12:33,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089412302] [2021-08-25 20:12:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-08-25 20:12:33,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089412302] [2021-08-25 20:12:33,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089412302] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199361079] [2021-08-25 20:12:33,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,757 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 20:12:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:33,879 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2021-08-25 20:12:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:33,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 234 [2021-08-25 20:12:33,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:33,883 INFO L225 Difference]: With dead ends: 2298 [2021-08-25 20:12:33,883 INFO L226 Difference]: Without dead ends: 1208 [2021-08-25 20:12:33,884 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-08-25 20:12:33,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2021-08-25 20:12:33,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1171 states have (on average 1.3774551665243382) internal successors, (1613), 1171 states have internal predecessors, (1613), 0 states have call successors, (0), 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 20:12:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2021-08-25 20:12:33,902 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2021-08-25 20:12:33,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:33,903 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2021-08-25 20:12:33,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 20:12:33,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2021-08-25 20:12:33,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-08-25 20:12:33,905 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:33,906 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:33,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-25 20:12:33,906 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:33,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:33,906 INFO L82 PathProgramCache]: Analyzing trace with hash 786531818, now seen corresponding path program 1 times [2021-08-25 20:12:33,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:33,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881786619] [2021-08-25 20:12:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:33,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-08-25 20:12:33,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:33,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881786619] [2021-08-25 20:12:33,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881786619] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:33,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:33,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:33,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108727143] [2021-08-25 20:12:33,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:33,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:33,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:33,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:33,941 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 20:12:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,056 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2021-08-25 20:12:34,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 234 [2021-08-25 20:12:34,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,060 INFO L225 Difference]: With dead ends: 2466 [2021-08-25 20:12:34,060 INFO L226 Difference]: Without dead ends: 1304 [2021-08-25 20:12:34,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2021-08-25 20:12:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2021-08-25 20:12:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.3805379746835442) internal successors, (1745), 1264 states have internal predecessors, (1745), 0 states have call successors, (0), 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 20:12:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2021-08-25 20:12:34,103 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2021-08-25 20:12:34,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,104 INFO L470 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2021-08-25 20:12:34,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 20:12:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2021-08-25 20:12:34,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-08-25 20:12:34,107 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,107 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:34,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-25 20:12:34,107 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,108 INFO L82 PathProgramCache]: Analyzing trace with hash 12496008, now seen corresponding path program 1 times [2021-08-25 20:12:34,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698039734] [2021-08-25 20:12:34,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-08-25 20:12:34,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698039734] [2021-08-25 20:12:34,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698039734] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905155961] [2021-08-25 20:12:34,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,158 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 20:12:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,188 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2021-08-25 20:12:34,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 264 [2021-08-25 20:12:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,195 INFO L225 Difference]: With dead ends: 3718 [2021-08-25 20:12:34,195 INFO L226 Difference]: Without dead ends: 2490 [2021-08-25 20:12:34,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2021-08-25 20:12:34,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2021-08-25 20:12:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2487 states have (on average 1.3811821471652594) internal successors, (3435), 2487 states have internal predecessors, (3435), 0 states have call successors, (0), 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 L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2021-08-25 20:12:34,245 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2021-08-25 20:12:34,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,245 INFO L470 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2021-08-25 20:12:34,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 20:12:34,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2021-08-25 20:12:34,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-08-25 20:12:34,250 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,250 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:34,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 20:12:34,250 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,251 INFO L82 PathProgramCache]: Analyzing trace with hash 130937482, now seen corresponding path program 1 times [2021-08-25 20:12:34,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291807830] [2021-08-25 20:12:34,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-08-25 20:12:34,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291807830] [2021-08-25 20:12:34,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291807830] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657109995] [2021-08-25 20:12:34,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,308 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 20:12:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,435 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2021-08-25 20:12:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 264 [2021-08-25 20:12:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,443 INFO L225 Difference]: With dead ends: 5251 [2021-08-25 20:12:34,443 INFO L226 Difference]: Without dead ends: 2770 [2021-08-25 20:12:34,446 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2021-08-25 20:12:34,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2021-08-25 20:12:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2697 states have (on average 1.389321468298109) internal successors, (3747), 2697 states have internal predecessors, (3747), 0 states have call successors, (0), 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 20:12:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2021-08-25 20:12:34,509 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2021-08-25 20:12:34,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,509 INFO L470 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2021-08-25 20:12:34,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 20:12:34,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2021-08-25 20:12:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-08-25 20:12:34,515 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:34,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-25 20:12:34,516 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,516 INFO L82 PathProgramCache]: Analyzing trace with hash -142796669, now seen corresponding path program 1 times [2021-08-25 20:12:34,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129630210] [2021-08-25 20:12:34,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-08-25 20:12:34,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129630210] [2021-08-25 20:12:34,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129630210] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104762134] [2021-08-25 20:12:34,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,569 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:34,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,712 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2021-08-25 20:12:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2021-08-25 20:12:34,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,722 INFO L225 Difference]: With dead ends: 5443 [2021-08-25 20:12:34,722 INFO L226 Difference]: Without dead ends: 2764 [2021-08-25 20:12:34,725 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 20:12:34,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2021-08-25 20:12:34,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2021-08-25 20:12:34,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 1.379041248606466) internal successors, (3711), 2691 states have internal predecessors, (3711), 0 states have call successors, (0), 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 20:12:34,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2021-08-25 20:12:34,773 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2021-08-25 20:12:34,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:34,773 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2021-08-25 20:12:34,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:34,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2021-08-25 20:12:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-08-25 20:12:34,778 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:34,778 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:34,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-25 20:12:34,779 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:34,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:34,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1408099866, now seen corresponding path program 1 times [2021-08-25 20:12:34,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:34,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766215562] [2021-08-25 20:12:34,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:34,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-08-25 20:12:34,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:34,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766215562] [2021-08-25 20:12:34,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766215562] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:34,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:34,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:34,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072558971] [2021-08-25 20:12:34,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:34,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:34,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:34,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,834 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:34,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:34,947 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2021-08-25 20:12:34,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:34,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2021-08-25 20:12:34,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:34,955 INFO L225 Difference]: With dead ends: 5407 [2021-08-25 20:12:34,955 INFO L226 Difference]: Without dead ends: 2752 [2021-08-25 20:12:34,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-08-25 20:12:34,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2021-08-25 20:12:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 1.358974358974359) internal successors, (3657), 2691 states have internal predecessors, (3657), 0 states have call successors, (0), 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 20:12:35,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2021-08-25 20:12:35,005 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 308 [2021-08-25 20:12:35,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:35,005 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2021-08-25 20:12:35,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:35,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2021-08-25 20:12:35,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-08-25 20:12:35,011 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:35,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:35,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-25 20:12:35,011 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:35,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:35,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1960500931, now seen corresponding path program 1 times [2021-08-25 20:12:35,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:35,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939734155] [2021-08-25 20:12:35,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:35,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:35,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939734155] [2021-08-25 20:12:35,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939734155] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:35,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:35,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:35,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054061981] [2021-08-25 20:12:35,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:35,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:35,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:35,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,054 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 20:12:35,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:35,186 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2021-08-25 20:12:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:35,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 336 [2021-08-25 20:12:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:35,194 INFO L225 Difference]: With dead ends: 5653 [2021-08-25 20:12:35,194 INFO L226 Difference]: Without dead ends: 2998 [2021-08-25 20:12:35,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2021-08-25 20:12:35,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2021-08-25 20:12:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2781 states have (on average 1.3581445523193096) internal successors, (3777), 2781 states have internal predecessors, (3777), 0 states have call successors, (0), 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 20:12:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2021-08-25 20:12:35,251 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2021-08-25 20:12:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:35,251 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2021-08-25 20:12:35,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 20:12:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2021-08-25 20:12:35,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-08-25 20:12:35,257 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:35,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:35,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-25 20:12:35,257 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:35,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash 806996379, now seen corresponding path program 1 times [2021-08-25 20:12:35,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:35,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625908752] [2021-08-25 20:12:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2021-08-25 20:12:35,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:35,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625908752] [2021-08-25 20:12:35,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625908752] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:35,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:35,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:35,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449906642] [2021-08-25 20:12:35,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:35,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:35,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:35,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,307 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 20:12:35,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:35,364 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2021-08-25 20:12:35,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:35,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2021-08-25 20:12:35,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:35,390 INFO L225 Difference]: With dead ends: 7882 [2021-08-25 20:12:35,390 INFO L226 Difference]: Without dead ends: 5137 [2021-08-25 20:12:35,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:35,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2021-08-25 20:12:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2021-08-25 20:12:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 1.36482275029217) internal successors, (7007), 5134 states have internal predecessors, (7007), 0 states have call successors, (0), 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 20:12:35,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2021-08-25 20:12:35,474 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2021-08-25 20:12:35,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:35,475 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2021-08-25 20:12:35,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 20:12:35,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2021-08-25 20:12:35,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-08-25 20:12:35,482 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:35,482 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:35,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-25 20:12:35,483 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:35,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:35,483 INFO L82 PathProgramCache]: Analyzing trace with hash 722980357, now seen corresponding path program 1 times [2021-08-25 20:12:35,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:35,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161479351] [2021-08-25 20:12:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-08-25 20:12:35,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:35,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161479351] [2021-08-25 20:12:35,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161479351] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:35,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59450613] [2021-08-25 20:12:35,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:35,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:35,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:35,537 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 20:12:35,560 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 20:12:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:35,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:35,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-08-25 20:12:36,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59450613] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:36,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:36,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:36,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856692529] [2021-08-25 20:12:36,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:36,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:36,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:36,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:36,482 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 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 20:12:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:36,744 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2021-08-25 20:12:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-25 20:12:36,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 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 347 [2021-08-25 20:12:36,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:36,765 INFO L225 Difference]: With dead ends: 10175 [2021-08-25 20:12:36,765 INFO L226 Difference]: Without dead ends: 7688 [2021-08-25 20:12:36,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:36,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2021-08-25 20:12:36,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2021-08-25 20:12:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5669 states, 5668 states have (on average 1.3484474241354976) internal successors, (7643), 5668 states have internal predecessors, (7643), 0 states have call successors, (0), 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 20:12:36,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2021-08-25 20:12:36,886 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 347 [2021-08-25 20:12:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:36,886 INFO L470 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2021-08-25 20:12:36,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 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 20:12:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2021-08-25 20:12:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-08-25 20:12:36,894 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:36,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:36,920 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 20:12:37,109 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,SelfDestructingSolverStorable21 [2021-08-25 20:12:37,109 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:37,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1881562091, now seen corresponding path program 1 times [2021-08-25 20:12:37,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:37,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763723156] [2021-08-25 20:12:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:37,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:37,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:37,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763723156] [2021-08-25 20:12:37,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763723156] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:37,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410421890] [2021-08-25 20:12:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:37,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:37,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:37,177 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 20:12:37,195 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 20:12:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:37,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:37,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:38,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-25 20:12:38,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410421890] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:38,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:38,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:38,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395453246] [2021-08-25 20:12:38,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:38,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:38,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:38,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:38,158 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:38,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:38,391 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2021-08-25 20:12:38,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:12:38,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 374 [2021-08-25 20:12:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:38,402 INFO L225 Difference]: With dead ends: 12703 [2021-08-25 20:12:38,403 INFO L226 Difference]: Without dead ends: 7058 [2021-08-25 20:12:38,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:38,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2021-08-25 20:12:38,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2021-08-25 20:12:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5789 states, 5788 states have (on average 1.3344851416724257) internal successors, (7724), 5788 states have internal predecessors, (7724), 0 states have call successors, (0), 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 20:12:38,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2021-08-25 20:12:38,505 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2021-08-25 20:12:38,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:38,505 INFO L470 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2021-08-25 20:12:38,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:38,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2021-08-25 20:12:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-08-25 20:12:38,514 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:38,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:38,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 20:12:38,724 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,SelfDestructingSolverStorable22 [2021-08-25 20:12:38,724 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:38,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:38,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1433443056, now seen corresponding path program 1 times [2021-08-25 20:12:38,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:38,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428147198] [2021-08-25 20:12:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:38,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-08-25 20:12:38,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:38,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428147198] [2021-08-25 20:12:38,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428147198] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:38,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:12:38,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:12:38,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338592699] [2021-08-25 20:12:38,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:38,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:38,778 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:38,896 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2021-08-25 20:12:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:38,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 413 [2021-08-25 20:12:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:38,901 INFO L225 Difference]: With dead ends: 11133 [2021-08-25 20:12:38,902 INFO L226 Difference]: Without dead ends: 3109 [2021-08-25 20:12:38,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:12:38,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-08-25 20:12:38,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2021-08-25 20:12:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3042 states have (on average 1.3356344510190663) internal successors, (4063), 3042 states have internal predecessors, (4063), 0 states have call successors, (0), 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 20:12:38,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2021-08-25 20:12:38,946 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2021-08-25 20:12:38,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:38,946 INFO L470 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2021-08-25 20:12:38,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:12:38,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2021-08-25 20:12:38,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2021-08-25 20:12:38,950 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:38,951 INFO L512 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:38,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-25 20:12:38,952 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:38,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:38,952 INFO L82 PathProgramCache]: Analyzing trace with hash -517038626, now seen corresponding path program 1 times [2021-08-25 20:12:38,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:38,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452983706] [2021-08-25 20:12:38,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:38,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2021-08-25 20:12:39,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:39,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452983706] [2021-08-25 20:12:39,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452983706] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:39,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828357950] [2021-08-25 20:12:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:39,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:39,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:39,008 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 20:12:39,028 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 20:12:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:39,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:39,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-08-25 20:12:40,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828357950] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:40,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:12:40,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 20:12:40,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35023754] [2021-08-25 20:12:40,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:40,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:40,538 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 20:12:40,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:40,561 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2021-08-25 20:12:40,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:40,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 497 [2021-08-25 20:12:40,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:40,565 INFO L225 Difference]: With dead ends: 3068 [2021-08-25 20:12:40,565 INFO L226 Difference]: Without dead ends: 2571 [2021-08-25 20:12:40,567 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:40,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2021-08-25 20:12:40,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2021-08-25 20:12:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2547 states have (on average 1.3345111896348645) internal successors, (3399), 2547 states have internal predecessors, (3399), 0 states have call successors, (0), 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 20:12:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2021-08-25 20:12:40,608 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 497 [2021-08-25 20:12:40,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:40,608 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2021-08-25 20:12:40,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 20:12:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2021-08-25 20:12:40,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2021-08-25 20:12:40,614 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:40,614 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:40,635 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 20:12:40,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:40,828 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:40,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:40,828 INFO L82 PathProgramCache]: Analyzing trace with hash 706380836, now seen corresponding path program 1 times [2021-08-25 20:12:40,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:40,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552600715] [2021-08-25 20:12:40,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:40,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:40,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 1546 proven. 14 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2021-08-25 20:12:40,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:40,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552600715] [2021-08-25 20:12:40,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552600715] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:40,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941040693] [2021-08-25 20:12:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:40,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:40,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:40,893 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 20:12:40,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-25 20:12:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:41,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:12:41,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 2339 trivial. 0 not checked. [2021-08-25 20:12:42,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941040693] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:12:42,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:12:42,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 20:12:42,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906842169] [2021-08-25 20:12:42,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:12:42,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:12:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:42,406 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 20:12:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:42,526 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2021-08-25 20:12:42,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:12:42,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 498 [2021-08-25 20:12:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:42,530 INFO L225 Difference]: With dead ends: 5167 [2021-08-25 20:12:42,531 INFO L226 Difference]: Without dead ends: 2656 [2021-08-25 20:12:42,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2021-08-25 20:12:42,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2021-08-25 20:12:42,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2652 states have (on average 1.2861990950226245) internal successors, (3411), 2652 states have internal predecessors, (3411), 0 states have call successors, (0), 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 20:12:42,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2021-08-25 20:12:42,564 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 498 [2021-08-25 20:12:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:42,564 INFO L470 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2021-08-25 20:12:42,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 20:12:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2021-08-25 20:12:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2021-08-25 20:12:42,569 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:12:42,570 INFO L512 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:12:42,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-25 20:12:42,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-08-25 20:12:42,785 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:12:42,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:12:42,785 INFO L82 PathProgramCache]: Analyzing trace with hash 180586689, now seen corresponding path program 2 times [2021-08-25 20:12:42,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:12:42,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087877164] [2021-08-25 20:12:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:12:42,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:12:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:12:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-08-25 20:12:42,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:12:42,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087877164] [2021-08-25 20:12:42,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087877164] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:42,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993343868] [2021-08-25 20:12:42,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-25 20:12:42,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:12:42,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:12:42,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 20:12:42,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-25 20:12:43,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-25 20:12:43,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-25 20:12:43,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:12:43,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:12:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-08-25 20:12:44,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993343868] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:12:44,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:12:44,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 20:12:44,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181479757] [2021-08-25 20:12:44,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:12:44,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:12:44,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:12:44,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:12:44,802 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 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 20:12:44,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:12:44,932 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2021-08-25 20:12:44,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:12:44,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 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 609 [2021-08-25 20:12:44,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:12:44,933 INFO L225 Difference]: With dead ends: 2888 [2021-08-25 20:12:44,933 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 20:12:44,935 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:12:44,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 20:12:44,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 20:12:44,935 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 20:12:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 20:12:44,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 609 [2021-08-25 20:12:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:12:44,936 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 20:12:44,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 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 20:12:44,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 20:12:44,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 20:12:44,938 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:12:44,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-25 20:12:45,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-08-25 20:12:45,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 20:12:45,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:45,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:12:46,224 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 500) no Hoare annotation was computed. [2021-08-25 20:12:46,224 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 500) no Hoare annotation was computed. [2021-08-25 20:12:46,224 INFO L857 garLoopResultBuilder]: For program point L300(lines 300 304) no Hoare annotation was computed. [2021-08-25 20:12:46,225 INFO L857 garLoopResultBuilder]: For program point L300-2(lines 300 304) no Hoare annotation was computed. [2021-08-25 20:12:46,225 INFO L860 garLoopResultBuilder]: At program point L565(lines 108 566) the Hoare annotation is: true [2021-08-25 20:12:46,225 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 515) no Hoare annotation was computed. [2021-08-25 20:12:46,225 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 526) no Hoare annotation was computed. [2021-08-25 20:12:46,225 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 537) no Hoare annotation was computed. [2021-08-25 20:12:46,225 INFO L857 garLoopResultBuilder]: For program point L103(lines 103 107) no Hoare annotation was computed. [2021-08-25 20:12:46,225 INFO L853 garLoopResultBuilder]: At program point L203(lines 199 516) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (not .cse2)) (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) .cse2))) [2021-08-25 20:12:46,226 INFO L853 garLoopResultBuilder]: At program point L137(lines 133 538) 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 4432)) [2021-08-25 20:12:46,226 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 106) no Hoare annotation was computed. [2021-08-25 20:12:46,226 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 253) no Hoare annotation was computed. [2021-08-25 20:12:46,226 INFO L857 garLoopResultBuilder]: For program point L237-2(lines 212 510) no Hoare annotation was computed. [2021-08-25 20:12:46,226 INFO L857 garLoopResultBuilder]: For program point L469(lines 469 481) no Hoare annotation was computed. [2021-08-25 20:12:46,226 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 450) no Hoare annotation was computed. [2021-08-25 20:12:46,226 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 436 450) no Hoare annotation was computed. [2021-08-25 20:12:46,226 INFO L857 garLoopResultBuilder]: For program point L469-2(lines 469 481) no Hoare annotation was computed. [2021-08-25 20:12:46,226 INFO L857 garLoopResultBuilder]: For program point L337(lines 337 340) no Hoare annotation was computed. [2021-08-25 20:12:46,227 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 273) no Hoare annotation was computed. [2021-08-25 20:12:46,227 INFO L857 garLoopResultBuilder]: For program point L205(lines 205 514) no Hoare annotation was computed. [2021-08-25 20:12:46,227 INFO L857 garLoopResultBuilder]: For program point L271-2(lines 212 510) no Hoare annotation was computed. [2021-08-25 20:12:46,227 INFO L857 garLoopResultBuilder]: For program point L172(lines 172 525) no Hoare annotation was computed. [2021-08-25 20:12:46,227 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 536) no Hoare annotation was computed. [2021-08-25 20:12:46,227 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 505) no Hoare annotation was computed. [2021-08-25 20:12:46,227 INFO L853 garLoopResultBuilder]: At program point L206(lines 205 514) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (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) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (not .cse2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)))) [2021-08-25 20:12:46,227 INFO L853 garLoopResultBuilder]: At program point L173(lines 163 528) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L570(lines 570 572) no Hoare annotation was computed. [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L570-2(lines 570 572) no Hoare annotation was computed. [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L372(lines 372 374) no Hoare annotation was computed. [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 408) no Hoare annotation was computed. [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 513) no Hoare annotation was computed. [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 524) no Hoare annotation was computed. [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L142(lines 142 535) no Hoare annotation was computed. [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 86 576) no Hoare annotation was computed. [2021-08-25 20:12:46,228 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 446) no Hoare annotation was computed. [2021-08-25 20:12:46,229 INFO L860 garLoopResultBuilder]: At program point L209(lines 208 513) the Hoare annotation is: true [2021-08-25 20:12:46,229 INFO L853 garLoopResultBuilder]: At program point L143(lines 139 536) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2))) [2021-08-25 20:12:46,229 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-08-25 20:12:46,229 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 246) no Hoare annotation was computed. [2021-08-25 20:12:46,229 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 478) no Hoare annotation was computed. [2021-08-25 20:12:46,229 INFO L860 garLoopResultBuilder]: At program point L211(lines 210 513) the Hoare annotation is: true [2021-08-25 20:12:46,229 INFO L857 garLoopResultBuilder]: For program point L178(lines 178 523) no Hoare annotation was computed. [2021-08-25 20:12:46,229 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 534) no Hoare annotation was computed. [2021-08-25 20:12:46,230 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 545) no Hoare annotation was computed. [2021-08-25 20:12:46,230 INFO L860 garLoopResultBuilder]: At program point L575(lines 12 577) the Hoare annotation is: true [2021-08-25 20:12:46,230 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 321) no Hoare annotation was computed. [2021-08-25 20:12:46,230 INFO L857 garLoopResultBuilder]: For program point L311-2(lines 311 321) no Hoare annotation was computed. [2021-08-25 20:12:46,230 INFO L853 garLoopResultBuilder]: At program point L179(lines 175 524) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-25 20:12:46,230 INFO L853 garLoopResultBuilder]: At program point L113(lines 112 545) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2021-08-25 20:12:46,230 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 347) no Hoare annotation was computed. [2021-08-25 20:12:46,230 INFO L853 garLoopResultBuilder]: At program point L511(lines 109 564) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse0 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse9 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse4 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse8 (not .cse2)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse7 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse5) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4384) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and .cse6 .cse7 .cse4 .cse8) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse0 .cse4 .cse2) (and .cse9 .cse10 .cse11 .cse1 .cse2) (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2 .cse3 .cse5) (and .cse4 .cse2 .cse12) (and .cse9 .cse10 .cse4 .cse8 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse2 .cse3) (and .cse1 .cse12) (and .cse6 .cse7 .cse11 .cse1 .cse2)))) [2021-08-25 20:12:46,231 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 416) no Hoare annotation was computed. [2021-08-25 20:12:46,231 INFO L853 garLoopResultBuilder]: At program point L346(lines 86 576) the Hoare annotation is: false [2021-08-25 20:12:46,231 INFO L857 garLoopResultBuilder]: For program point L412-2(lines 212 510) no Hoare annotation was computed. [2021-08-25 20:12:46,231 INFO L857 garLoopResultBuilder]: For program point L181(lines 181 522) no Hoare annotation was computed. [2021-08-25 20:12:46,231 INFO L857 garLoopResultBuilder]: For program point L148(lines 148 533) no Hoare annotation was computed. [2021-08-25 20:12:46,231 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 544) no Hoare annotation was computed. [2021-08-25 20:12:46,231 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 251) no Hoare annotation was computed. [2021-08-25 20:12:46,231 INFO L853 garLoopResultBuilder]: At program point L149(lines 145 534) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-25 20:12:46,232 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 562) no Hoare annotation was computed. [2021-08-25 20:12:46,232 INFO L857 garLoopResultBuilder]: For program point L381(lines 381 383) no Hoare annotation was computed. [2021-08-25 20:12:46,232 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 350) no Hoare annotation was computed. [2021-08-25 20:12:46,232 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 317) no Hoare annotation was computed. [2021-08-25 20:12:46,232 INFO L857 garLoopResultBuilder]: For program point L282(lines 282 284) no Hoare annotation was computed. [2021-08-25 20:12:46,232 INFO L857 garLoopResultBuilder]: For program point L315-2(lines 313 321) no Hoare annotation was computed. [2021-08-25 20:12:46,232 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 561) no Hoare annotation was computed. [2021-08-25 20:12:46,232 INFO L853 garLoopResultBuilder]: At program point L217(lines 115 544) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) [2021-08-25 20:12:46,232 INFO L857 garLoopResultBuilder]: For program point L184(lines 184 521) no Hoare annotation was computed. [2021-08-25 20:12:46,233 INFO L857 garLoopResultBuilder]: For program point L151(lines 151 532) no Hoare annotation was computed. [2021-08-25 20:12:46,233 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 543) no Hoare annotation was computed. [2021-08-25 20:12:46,233 INFO L857 garLoopResultBuilder]: For program point L548(lines 548 553) no Hoare annotation was computed. [2021-08-25 20:12:46,233 INFO L857 garLoopResultBuilder]: For program point L548-2(lines 547 561) no Hoare annotation was computed. [2021-08-25 20:12:46,233 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 20:12:46,233 INFO L853 garLoopResultBuilder]: At program point L185(lines 181 522) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-25 20:12:46,233 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 552) no Hoare annotation was computed. [2021-08-25 20:12:46,233 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 390) no Hoare annotation was computed. [2021-08-25 20:12:46,233 INFO L857 garLoopResultBuilder]: For program point L385-2(lines 385 390) no Hoare annotation was computed. [2021-08-25 20:12:46,234 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 520) no Hoare annotation was computed. [2021-08-25 20:12:46,234 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 531) no Hoare annotation was computed. [2021-08-25 20:12:46,234 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 542) no Hoare annotation was computed. [2021-08-25 20:12:46,234 INFO L853 garLoopResultBuilder]: At program point L155(lines 151 532) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-25 20:12:46,234 INFO L857 garLoopResultBuilder]: For program point L486-1(lines 486 488) no Hoare annotation was computed. [2021-08-25 20:12:46,234 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-08-25 20:12:46,234 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-08-25 20:12:46,234 INFO L860 garLoopResultBuilder]: At program point L586(lines 578 588) the Hoare annotation is: true [2021-08-25 20:12:46,234 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 424) no Hoare annotation was computed. [2021-08-25 20:12:46,234 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 20:12:46,235 INFO L857 garLoopResultBuilder]: For program point L190(lines 190 519) no Hoare annotation was computed. [2021-08-25 20:12:46,235 INFO L857 garLoopResultBuilder]: For program point L157(lines 157 530) no Hoare annotation was computed. [2021-08-25 20:12:46,235 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 541) no Hoare annotation was computed. [2021-08-25 20:12:46,235 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 296) no Hoare annotation was computed. [2021-08-25 20:12:46,235 INFO L853 garLoopResultBuilder]: At program point L191(lines 187 520) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse0) (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0))) [2021-08-25 20:12:46,235 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 559) no Hoare annotation was computed. [2021-08-25 20:12:46,235 INFO L857 garLoopResultBuilder]: For program point L456(lines 456 458) no Hoare annotation was computed. [2021-08-25 20:12:46,235 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 359) no Hoare annotation was computed. [2021-08-25 20:12:46,235 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 262) no Hoare annotation was computed. [2021-08-25 20:12:46,236 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 518) no Hoare annotation was computed. [2021-08-25 20:12:46,236 INFO L857 garLoopResultBuilder]: For program point L160(lines 160 529) no Hoare annotation was computed. [2021-08-25 20:12:46,236 INFO L857 garLoopResultBuilder]: For program point L127(lines 127 540) no Hoare annotation was computed. [2021-08-25 20:12:46,236 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 20:12:46,236 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 295) no Hoare annotation was computed. [2021-08-25 20:12:46,236 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 230) no Hoare annotation was computed. [2021-08-25 20:12:46,236 INFO L857 garLoopResultBuilder]: For program point L293-2(lines 212 510) no Hoare annotation was computed. [2021-08-25 20:12:46,236 INFO L853 garLoopResultBuilder]: At program point L161(lines 157 530) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-25 20:12:46,236 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 101) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L492(lines 492 494) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 463) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L492-2(lines 492 494) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L459-2(lines 459 463) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L360(lines 360 364) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 517) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 528) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L130(lines 130 539) no Hoare annotation was computed. [2021-08-25 20:12:46,237 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 331) no Hoare annotation was computed. [2021-08-25 20:12:46,238 INFO L857 garLoopResultBuilder]: For program point L329-2(lines 212 510) no Hoare annotation was computed. [2021-08-25 20:12:46,238 INFO L853 garLoopResultBuilder]: At program point L197(lines 193 518) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0)) (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)))) [2021-08-25 20:12:46,238 INFO L853 garLoopResultBuilder]: At program point L131(lines 127 540) 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 4432)) [2021-08-25 20:12:46,238 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 100) no Hoare annotation was computed. [2021-08-25 20:12:46,238 INFO L857 garLoopResultBuilder]: For program point L98-2(lines 95 101) no Hoare annotation was computed. [2021-08-25 20:12:46,238 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 20:12:46,238 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 574) no Hoare annotation was computed. [2021-08-25 20:12:46,238 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 431) no Hoare annotation was computed. [2021-08-25 20:12:46,239 INFO L857 garLoopResultBuilder]: For program point L396(lines 396 398) no Hoare annotation was computed. [2021-08-25 20:12:46,239 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 516) no Hoare annotation was computed. [2021-08-25 20:12:46,239 INFO L857 garLoopResultBuilder]: For program point L166(lines 166 527) no Hoare annotation was computed. [2021-08-25 20:12:46,239 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 538) no Hoare annotation was computed. [2021-08-25 20:12:46,242 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:12:46,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:12:46 BoogieIcfgContainer [2021-08-25 20:12:46,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:12:46,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:12:46,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:12:46,255 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:12:46,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:12:31" (3/4) ... [2021-08-25 20:12:46,257 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 20:12:46,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 20:12:46,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 20:12:46,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:12:46,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:12:46,309 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:12:46,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:12:46,310 INFO L168 Benchmark]: Toolchain (without parser) took 15869.30 ms. Allocated memory was 54.5 MB in the beginning and 528.5 MB in the end (delta: 474.0 MB). Free memory was 32.8 MB in the beginning and 167.3 MB in the end (delta: -134.6 MB). Peak memory consumption was 339.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:46,310 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 52.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:12:46,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.43 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 32.6 MB in the beginning and 47.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:46,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.96 ms. Allocated memory is still 69.2 MB. Free memory was 47.5 MB in the beginning and 44.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:46,311 INFO L168 Benchmark]: Boogie Preprocessor took 26.44 ms. Allocated memory is still 69.2 MB. Free memory was 44.5 MB in the beginning and 42.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:46,311 INFO L168 Benchmark]: RCFGBuilder took 608.67 ms. Allocated memory is still 69.2 MB. Free memory was 42.4 MB in the beginning and 32.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:46,311 INFO L168 Benchmark]: TraceAbstraction took 14811.69 ms. Allocated memory was 69.2 MB in the beginning and 528.5 MB in the end (delta: 459.3 MB). Free memory was 31.7 MB in the beginning and 176.8 MB in the end (delta: -145.1 MB). Peak memory consumption was 331.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:46,311 INFO L168 Benchmark]: Witness Printer took 54.01 ms. Allocated memory is still 528.5 MB. Free memory was 176.8 MB in the beginning and 167.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:12:46,312 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 54.5 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 52.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.43 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 32.6 MB in the beginning and 47.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.96 ms. Allocated memory is still 69.2 MB. Free memory was 47.5 MB in the beginning and 44.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.44 ms. Allocated memory is still 69.2 MB. Free memory was 44.5 MB in the beginning and 42.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 608.67 ms. Allocated memory is still 69.2 MB. Free memory was 42.4 MB in the beginning and 32.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14811.69 ms. Allocated memory was 69.2 MB in the beginning and 528.5 MB in the end (delta: 459.3 MB). Free memory was 31.7 MB in the beginning and 176.8 MB in the end (delta: -145.1 MB). Peak memory consumption was 331.7 MB. Max. memory is 16.1 GB. * Witness Printer took 54.01 ms. Allocated memory is still 528.5 MB. Free memory was 176.8 MB in the beginning and 167.3 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: 574]: 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: 14749.7ms, OverallIterations: 27, TraceHistogramMax: 21, EmptinessCheckTime: 90.0ms, AutomataDifference: 3088.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1066.7ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4907 SDtfs, 2134 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1601.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2412 GetRequests, 2375 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 859.2ms AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9020 FormulaSimplificationTreeSizeReduction, 311.6ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 2033 FormulaSimplificationTreeSizeReductionInter, 743.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 189.8ms SsaConstructionTime, 756.0ms SatisfiabilityAnalysisTime, 5794.3ms InterpolantComputationTime, 8657 NumberOfCodeBlocks, 8657 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 8625 ConstructedInterpolants, 0 QuantifiedInterpolants, 11621 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4061 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 24 PerfectInterpolantSequences, 37541/37631 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((4400 == s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && 4512 <= s__state) && s__state <= 4528)) || (s__state == 4384 && blastFlag == 1)) || (((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) && !(s__hit == 0))) || (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)) || ((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 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) - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: blastFlag == 0 && s__state <= 4352 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: ((s__state <= 4480 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4512 <= s__state) || (((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) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: ((4352 <= s__state && s__state <= 4432) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 0) && s__state <= 4432 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) && !(s__hit == 0)) || ((((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: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__state <= 4464) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 1) && s__state <= 4432 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && 4512 <= s__state) && s__state <= 4528) || (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: ((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((((4352 <= s__state && s__state <= 4432) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || (((4352 <= s__state && blastFlag == 2) && s__state <= 4432) && s__hit == 0) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((s__state <= 4448 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) RESULT: Ultimate proved your program to be correct! [2021-08-25 20:12:46,355 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...