./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/s3_clnt.blast.04.i.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da87230a36c8669a54c71c71718f9b36b6de0312 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/s3_clnt.blast.04.i.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 da87230a36c8669a54c71c71718f9b36b6de0312 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 03:22:18,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:22:18,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:22:18,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:22:18,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:22:18,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:22:18,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:22:18,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:22:18,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:22:18,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:22:18,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:22:18,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:22:18,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:22:18,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:22:18,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:22:18,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:22:18,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:22:18,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:22:18,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:22:18,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:22:18,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:22:18,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:22:18,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:22:18,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:22:18,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:22:18,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:22:18,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:22:18,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:22:18,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:22:18,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:22:18,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:22:18,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:22:18,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:22:18,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:22:18,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:22:18,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:22:18,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:22:18,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:22:18,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:22:18,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:22:18,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:22:18,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 03:22:18,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:22:18,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:22:18,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:22:18,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:22:18,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:22:18,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:22:18,355 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:22:18,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:22:18,356 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:22:18,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 03:22:18,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:22:18,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:22:18,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:22:18,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:22:18,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:22:18,357 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:22:18,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:22:18,357 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:22:18,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:22:18,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:22:18,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:22:18,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:22:18,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:22:18,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:22:18,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:22:18,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:22:18,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 03:22:18,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 03:22:18,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:22:18,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:22:18,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da87230a36c8669a54c71c71718f9b36b6de0312 [2021-08-29 03:22:18,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:22:18,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:22:18,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:22:18,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:22:18,597 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:22:18,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c [2021-08-29 03:22:18,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15865c2bd/14ae76f93cc64aa8b3cabdd66d7d609d/FLAGd3a31ac4f [2021-08-29 03:22:19,092 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:22:19,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c [2021-08-29 03:22:19,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15865c2bd/14ae76f93cc64aa8b3cabdd66d7d609d/FLAGd3a31ac4f [2021-08-29 03:22:19,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15865c2bd/14ae76f93cc64aa8b3cabdd66d7d609d [2021-08-29 03:22:19,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:22:19,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:22:19,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:22:19,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:22:19,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:22:19,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1832fe47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19, skipping insertion in model container [2021-08-29 03:22:19,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:22:19,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:22:19,423 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/s3_clnt.blast.04.i.cil-1.c[64361,64374] [2021-08-29 03:22:19,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:22:19,451 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:22:19,539 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/s3_clnt.blast.04.i.cil-1.c[64361,64374] [2021-08-29 03:22:19,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:22:19,558 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:22:19,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19 WrapperNode [2021-08-29 03:22:19,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:22:19,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:22:19,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:22:19,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:22:19,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:22:19,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:22:19,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:22:19,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:22:19,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:22:19,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:22:19,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:22:19,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:22:19,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (1/1) ... [2021-08-29 03:22:19,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:22:19,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:22:19,738 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) [2021-08-29 03:22:19,768 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 [2021-08-29 03:22:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-29 03:22:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-29 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-29 03:22:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:22:19,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:22:19,919 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-29 03:22:20,112 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-29 03:22:20,113 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-29 03:22:20,117 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:22:20,117 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 03:22:20,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:22:20 BoogieIcfgContainer [2021-08-29 03:22:20,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:22:20,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:22:20,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:22:20,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:22:20,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:22:19" (1/3) ... [2021-08-29 03:22:20,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b848123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:22:20, skipping insertion in model container [2021-08-29 03:22:20,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:19" (2/3) ... [2021-08-29 03:22:20,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b848123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:22:20, skipping insertion in model container [2021-08-29 03:22:20,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:22:20" (3/3) ... [2021-08-29 03:22:20,129 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-1.c [2021-08-29 03:22:20,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:22:20,137 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 03:22:20,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:22:20,171 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 [2021-08-29 03:22:20,171 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 03:22:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 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) [2021-08-29 03:22:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 03:22:20,186 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:20,187 INFO L513 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] [2021-08-29 03:22:20,187 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:20,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:20,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-08-29 03:22:20,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:20,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71762603] [2021-08-29 03:22:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:20,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:22:20,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:20,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71762603] [2021-08-29 03:22:20,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71762603] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:20,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:20,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:20,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24068968] [2021-08-29 03:22:20,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:20,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:20,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:20,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:20,458 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 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) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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) [2021-08-29 03:22:21,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:21,015 INFO L93 Difference]: Finished difference Result 255 states and 430 transitions. [2021-08-29 03:22:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:21,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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 [2021-08-29 03:22:21,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:21,023 INFO L225 Difference]: With dead ends: 255 [2021-08-29 03:22:21,023 INFO L226 Difference]: Without dead ends: 116 [2021-08-29 03:22:21,027 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:21,032 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 414.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.77ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 506.26ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:21,037 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 633 Unknown, 0 Unchecked, 3.77ms Time], IncrementalHoareTripleChecker [1 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 506.26ms Time] [2021-08-29 03:22:21,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-08-29 03:22:21,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2021-08-29 03:22:21,073 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) [2021-08-29 03:22:21,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-08-29 03:22:21,080 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-08-29 03:22:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:21,080 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-08-29 03:22:21,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 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) [2021-08-29 03:22:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-08-29 03:22:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-29 03:22:21,083 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:21,083 INFO L513 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, 1] [2021-08-29 03:22:21,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 03:22:21,083 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:21,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:21,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1001988123, now seen corresponding path program 1 times [2021-08-29 03:22:21,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:21,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228289588] [2021-08-29 03:22:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:21,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:21,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 03:22:21,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:21,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228289588] [2021-08-29 03:22:21,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228289588] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:21,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:21,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:22:21,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670993451] [2021-08-29 03:22:21,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:22:21,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:21,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:22:21,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:22:21,221 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:21,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:21,599 INFO L93 Difference]: Finished difference Result 321 states and 484 transitions. [2021-08-29 03:22:21,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:22:21,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-08-29 03:22:21,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:21,601 INFO L225 Difference]: With dead ends: 321 [2021-08-29 03:22:21,601 INFO L226 Difference]: Without dead ends: 216 [2021-08-29 03:22:21,601 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:22:21,602 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 124 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 304.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.19ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 361.02ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:21,602 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 0 Invalid, 333 Unknown, 0 Unchecked, 1.19ms Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 361.02ms Time] [2021-08-29 03:22:21,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-08-29 03:22:21,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-08-29 03:22:21,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.4883720930232558) internal successors, (320), 215 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 320 transitions. [2021-08-29 03:22:21,621 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 320 transitions. Word has length 38 [2021-08-29 03:22:21,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:21,622 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 320 transitions. [2021-08-29 03:22:21,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:21,622 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 320 transitions. [2021-08-29 03:22:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-29 03:22:21,623 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:21,623 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:21,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 03:22:21,623 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:21,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:21,624 INFO L82 PathProgramCache]: Analyzing trace with hash -596933037, now seen corresponding path program 1 times [2021-08-29 03:22:21,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:21,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529591440] [2021-08-29 03:22:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:21,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 03:22:21,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:21,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529591440] [2021-08-29 03:22:21,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529591440] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:21,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:21,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:22:21,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357753014] [2021-08-29 03:22:21,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:22:21,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:21,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:22:21,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:22:21,739 INFO L87 Difference]: Start difference. First operand 216 states and 320 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:22,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:22,196 INFO L93 Difference]: Finished difference Result 421 states and 631 transitions. [2021-08-29 03:22:22,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:22:22,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 53 [2021-08-29 03:22:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:22,198 INFO L225 Difference]: With dead ends: 421 [2021-08-29 03:22:22,199 INFO L226 Difference]: Without dead ends: 316 [2021-08-29 03:22:22,199 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:22:22,200 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 124 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 358.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.34ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 439.97ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:22,200 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 0 Invalid, 484 Unknown, 0 Unchecked, 1.34ms Time], IncrementalHoareTripleChecker [5 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 439.97ms Time] [2021-08-29 03:22:22,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-08-29 03:22:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-08-29 03:22:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.4825396825396826) internal successors, (467), 315 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:22,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 467 transitions. [2021-08-29 03:22:22,219 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 467 transitions. Word has length 53 [2021-08-29 03:22:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:22,228 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 467 transitions. [2021-08-29 03:22:22,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 467 transitions. [2021-08-29 03:22:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-29 03:22:22,231 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:22,231 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2021-08-29 03:22:22,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 03:22:22,231 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:22,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:22,231 INFO L82 PathProgramCache]: Analyzing trace with hash -971278195, now seen corresponding path program 1 times [2021-08-29 03:22:22,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:22,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327361327] [2021-08-29 03:22:22,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:22,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:22,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:22,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327361327] [2021-08-29 03:22:22,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327361327] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:22,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:22,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:22,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268792750] [2021-08-29 03:22:22,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:22,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:22,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:22,295 INFO L87 Difference]: Start difference. First operand 316 states and 467 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:22,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:22,942 INFO L93 Difference]: Finished difference Result 808 states and 1199 transitions. [2021-08-29 03:22:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:22,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 71 [2021-08-29 03:22:22,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:22,945 INFO L225 Difference]: With dead ends: 808 [2021-08-29 03:22:22,945 INFO L226 Difference]: Without dead ends: 502 [2021-08-29 03:22:22,946 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:22,947 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 97 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 509.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.53ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 618.44ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:22,947 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 0 Invalid, 807 Unknown, 0 Unchecked, 2.53ms Time], IncrementalHoareTripleChecker [8 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 618.44ms Time] [2021-08-29 03:22:22,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-08-29 03:22:22,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 366. [2021-08-29 03:22:22,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.515068493150685) internal successors, (553), 365 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:22,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 553 transitions. [2021-08-29 03:22:22,957 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 553 transitions. Word has length 71 [2021-08-29 03:22:22,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:22,957 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 553 transitions. [2021-08-29 03:22:22,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 553 transitions. [2021-08-29 03:22:22,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-29 03:22:22,959 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:22,960 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2021-08-29 03:22:22,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 03:22:22,960 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:22,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:22,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1105291701, now seen corresponding path program 1 times [2021-08-29 03:22:22,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:22,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479759792] [2021-08-29 03:22:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:22,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:23,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:23,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479759792] [2021-08-29 03:22:23,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479759792] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:23,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:23,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:23,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824563307] [2021-08-29 03:22:23,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:23,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:23,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:23,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:23,045 INFO L87 Difference]: Start difference. First operand 366 states and 553 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:23,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:23,582 INFO L93 Difference]: Finished difference Result 808 states and 1220 transitions. [2021-08-29 03:22:23,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:23,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 71 [2021-08-29 03:22:23,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:23,584 INFO L225 Difference]: With dead ends: 808 [2021-08-29 03:22:23,584 INFO L226 Difference]: Without dead ends: 452 [2021-08-29 03:22:23,584 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:23,589 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 420.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.55ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 501.23ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:23,590 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 648 Unknown, 0 Unchecked, 1.55ms Time], IncrementalHoareTripleChecker [6 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 501.23ms Time] [2021-08-29 03:22:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-08-29 03:22:23,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 406. [2021-08-29 03:22:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.5333333333333334) internal successors, (621), 405 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:23,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 621 transitions. [2021-08-29 03:22:23,606 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 621 transitions. Word has length 71 [2021-08-29 03:22:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:23,606 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 621 transitions. [2021-08-29 03:22:23,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:23,607 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 621 transitions. [2021-08-29 03:22:23,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-29 03:22:23,609 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:23,609 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 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, 1] [2021-08-29 03:22:23,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 03:22:23,610 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:23,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:23,610 INFO L82 PathProgramCache]: Analyzing trace with hash -49538802, now seen corresponding path program 1 times [2021-08-29 03:22:23,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:23,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943497720] [2021-08-29 03:22:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:23,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:23,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:23,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943497720] [2021-08-29 03:22:23,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943497720] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:23,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:23,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:23,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23868566] [2021-08-29 03:22:23,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:23,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:23,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:23,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:23,686 INFO L87 Difference]: Start difference. First operand 406 states and 621 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:24,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:24,311 INFO L93 Difference]: Finished difference Result 930 states and 1411 transitions. [2021-08-29 03:22:24,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:24,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-08-29 03:22:24,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:24,314 INFO L225 Difference]: With dead ends: 930 [2021-08-29 03:22:24,314 INFO L226 Difference]: Without dead ends: 534 [2021-08-29 03:22:24,315 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:24,315 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 91 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 486.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.07ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 598.60ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:24,315 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 0 Invalid, 794 Unknown, 0 Unchecked, 3.07ms Time], IncrementalHoareTripleChecker [8 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 598.60ms Time] [2021-08-29 03:22:24,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-08-29 03:22:24,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 408. [2021-08-29 03:22:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.5307125307125307) internal successors, (623), 407 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 623 transitions. [2021-08-29 03:22:24,333 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 623 transitions. Word has length 72 [2021-08-29 03:22:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:24,334 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 623 transitions. [2021-08-29 03:22:24,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:24,335 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 623 transitions. [2021-08-29 03:22:24,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:22:24,336 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:24,336 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:24,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 03:22:24,337 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:24,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:24,337 INFO L82 PathProgramCache]: Analyzing trace with hash -200583067, now seen corresponding path program 2 times [2021-08-29 03:22:24,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:24,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370320703] [2021-08-29 03:22:24,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:24,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:24,432 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:24,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:24,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370320703] [2021-08-29 03:22:24,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370320703] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:24,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:24,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:24,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419472879] [2021-08-29 03:22:24,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:24,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:24,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:24,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:24,433 INFO L87 Difference]: Start difference. First operand 408 states and 623 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:25,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:25,038 INFO L93 Difference]: Finished difference Result 930 states and 1409 transitions. [2021-08-29 03:22:25,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:25,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-08-29 03:22:25,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:25,040 INFO L225 Difference]: With dead ends: 930 [2021-08-29 03:22:25,041 INFO L226 Difference]: Without dead ends: 532 [2021-08-29 03:22:25,041 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:25,042 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 104 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 455.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 580.27ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:25,042 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 0 Invalid, 789 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [8 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 580.27ms Time] [2021-08-29 03:22:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-08-29 03:22:25,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 408. [2021-08-29 03:22:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.5257985257985258) internal successors, (621), 407 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 621 transitions. [2021-08-29 03:22:25,050 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 621 transitions. Word has length 85 [2021-08-29 03:22:25,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:25,050 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 621 transitions. [2021-08-29 03:22:25,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 621 transitions. [2021-08-29 03:22:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:22:25,051 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:25,051 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:25,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 03:22:25,051 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:25,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1309563513, now seen corresponding path program 1 times [2021-08-29 03:22:25,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:25,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986226657] [2021-08-29 03:22:25,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:25,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:25,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:25,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986226657] [2021-08-29 03:22:25,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986226657] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:25,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:25,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:25,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409366285] [2021-08-29 03:22:25,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:25,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:25,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:25,095 INFO L87 Difference]: Start difference. First operand 408 states and 621 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:25,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:25,652 INFO L93 Difference]: Finished difference Result 930 states and 1405 transitions. [2021-08-29 03:22:25,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:25,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-08-29 03:22:25,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:25,654 INFO L225 Difference]: With dead ends: 930 [2021-08-29 03:22:25,654 INFO L226 Difference]: Without dead ends: 532 [2021-08-29 03:22:25,654 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.85ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:25,655 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 102 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 461.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.68ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 535.08ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:25,655 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 0 Invalid, 787 Unknown, 0 Unchecked, 1.68ms Time], IncrementalHoareTripleChecker [8 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 535.08ms Time] [2021-08-29 03:22:25,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-08-29 03:22:25,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 408. [2021-08-29 03:22:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.520884520884521) internal successors, (619), 407 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 619 transitions. [2021-08-29 03:22:25,662 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 619 transitions. Word has length 85 [2021-08-29 03:22:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:25,662 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 619 transitions. [2021-08-29 03:22:25,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 619 transitions. [2021-08-29 03:22:25,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:22:25,663 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:25,663 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:25,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 03:22:25,663 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:25,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:25,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1229942365, now seen corresponding path program 2 times [2021-08-29 03:22:25,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:25,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083398494] [2021-08-29 03:22:25,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:25,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:25,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:25,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083398494] [2021-08-29 03:22:25,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083398494] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:25,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:25,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:25,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950380872] [2021-08-29 03:22:25,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:25,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:25,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:25,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:25,703 INFO L87 Difference]: Start difference. First operand 408 states and 619 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:26,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:26,174 INFO L93 Difference]: Finished difference Result 850 states and 1280 transitions. [2021-08-29 03:22:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:26,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-08-29 03:22:26,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:26,175 INFO L225 Difference]: With dead ends: 850 [2021-08-29 03:22:26,176 INFO L226 Difference]: Without dead ends: 452 [2021-08-29 03:22:26,176 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:26,176 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 380.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.38ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 447.53ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:26,177 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 643 Unknown, 0 Unchecked, 1.38ms Time], IncrementalHoareTripleChecker [6 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 447.53ms Time] [2021-08-29 03:22:26,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-08-29 03:22:26,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 408. [2021-08-29 03:22:26,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.515970515970516) internal successors, (617), 407 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 617 transitions. [2021-08-29 03:22:26,183 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 617 transitions. Word has length 85 [2021-08-29 03:22:26,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:26,183 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 617 transitions. [2021-08-29 03:22:26,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:26,184 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 617 transitions. [2021-08-29 03:22:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:22:26,184 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:26,184 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:26,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 03:22:26,185 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:26,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:26,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1956044485, now seen corresponding path program 1 times [2021-08-29 03:22:26,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:26,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216574977] [2021-08-29 03:22:26,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:26,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:26,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:26,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216574977] [2021-08-29 03:22:26,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216574977] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:26,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:26,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:26,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341577550] [2021-08-29 03:22:26,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:26,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:26,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:26,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:26,225 INFO L87 Difference]: Start difference. First operand 408 states and 617 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:26,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:26,687 INFO L93 Difference]: Finished difference Result 850 states and 1276 transitions. [2021-08-29 03:22:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:26,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-08-29 03:22:26,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:26,689 INFO L225 Difference]: With dead ends: 850 [2021-08-29 03:22:26,689 INFO L226 Difference]: Without dead ends: 452 [2021-08-29 03:22:26,689 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:26,690 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 375.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.28ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 440.88ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:26,690 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 641 Unknown, 0 Unchecked, 1.28ms Time], IncrementalHoareTripleChecker [6 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 440.88ms Time] [2021-08-29 03:22:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-08-29 03:22:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 408. [2021-08-29 03:22:26,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.511056511056511) internal successors, (615), 407 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 615 transitions. [2021-08-29 03:22:26,696 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 615 transitions. Word has length 85 [2021-08-29 03:22:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:26,697 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 615 transitions. [2021-08-29 03:22:26,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 615 transitions. [2021-08-29 03:22:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-29 03:22:26,698 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:26,698 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:26,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 03:22:26,698 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:26,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:26,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1887370232, now seen corresponding path program 1 times [2021-08-29 03:22:26,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:26,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680905040] [2021-08-29 03:22:26,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:26,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:26,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:26,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680905040] [2021-08-29 03:22:26,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680905040] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:26,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:26,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:26,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029277790] [2021-08-29 03:22:26,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:26,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:26,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:26,740 INFO L87 Difference]: Start difference. First operand 408 states and 615 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:27,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:27,331 INFO L93 Difference]: Finished difference Result 930 states and 1393 transitions. [2021-08-29 03:22:27,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:27,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-08-29 03:22:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:27,333 INFO L225 Difference]: With dead ends: 930 [2021-08-29 03:22:27,333 INFO L226 Difference]: Without dead ends: 532 [2021-08-29 03:22:27,333 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:27,334 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 100 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 474.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.57ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 573.77ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:27,334 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 0 Invalid, 785 Unknown, 0 Unchecked, 1.57ms Time], IncrementalHoareTripleChecker [8 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 573.77ms Time] [2021-08-29 03:22:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-08-29 03:22:27,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 408. [2021-08-29 03:22:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.5061425061425062) internal successors, (613), 407 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 613 transitions. [2021-08-29 03:22:27,341 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 613 transitions. Word has length 86 [2021-08-29 03:22:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:27,341 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 613 transitions. [2021-08-29 03:22:27,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 613 transitions. [2021-08-29 03:22:27,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-29 03:22:27,342 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:27,342 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-08-29 03:22:27,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 03:22:27,343 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:27,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:27,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1587309149, now seen corresponding path program 1 times [2021-08-29 03:22:27,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:27,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438702896] [2021-08-29 03:22:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:27,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:27,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:27,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438702896] [2021-08-29 03:22:27,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438702896] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:27,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:27,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:27,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592822426] [2021-08-29 03:22:27,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:27,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:27,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:27,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:27,386 INFO L87 Difference]: Start difference. First operand 408 states and 613 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:27,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:27,916 INFO L93 Difference]: Finished difference Result 785 states and 1170 transitions. [2021-08-29 03:22:27,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:27,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-08-29 03:22:27,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:27,918 INFO L225 Difference]: With dead ends: 785 [2021-08-29 03:22:27,918 INFO L226 Difference]: Without dead ends: 532 [2021-08-29 03:22:27,918 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.50ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:27,921 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 425.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.40ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 507.34ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:27,921 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 783 Unknown, 0 Unchecked, 1.40ms Time], IncrementalHoareTripleChecker [8 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 507.34ms Time] [2021-08-29 03:22:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-08-29 03:22:27,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 408. [2021-08-29 03:22:27,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.5012285012285012) internal successors, (611), 407 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 611 transitions. [2021-08-29 03:22:27,931 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 611 transitions. Word has length 86 [2021-08-29 03:22:27,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:27,931 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 611 transitions. [2021-08-29 03:22:27,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:27,932 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 611 transitions. [2021-08-29 03:22:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-29 03:22:27,933 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:27,933 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:27,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 03:22:27,933 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:27,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:27,933 INFO L82 PathProgramCache]: Analyzing trace with hash 562229898, now seen corresponding path program 1 times [2021-08-29 03:22:27,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:27,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125543193] [2021-08-29 03:22:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:27,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:27,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:27,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125543193] [2021-08-29 03:22:27,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125543193] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:27,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:27,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:27,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551360485] [2021-08-29 03:22:27,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:27,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:27,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:27,975 INFO L87 Difference]: Start difference. First operand 408 states and 611 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:28,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:28,443 INFO L93 Difference]: Finished difference Result 850 states and 1264 transitions. [2021-08-29 03:22:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:28,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-08-29 03:22:28,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:28,444 INFO L225 Difference]: With dead ends: 850 [2021-08-29 03:22:28,444 INFO L226 Difference]: Without dead ends: 452 [2021-08-29 03:22:28,445 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.87ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:28,445 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 388.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.04ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 453.05ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:28,446 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 639 Unknown, 0 Unchecked, 1.04ms Time], IncrementalHoareTripleChecker [6 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 453.05ms Time] [2021-08-29 03:22:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-08-29 03:22:28,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 408. [2021-08-29 03:22:28,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4963144963144963) internal successors, (609), 407 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:28,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 609 transitions. [2021-08-29 03:22:28,452 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 609 transitions. Word has length 86 [2021-08-29 03:22:28,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:28,452 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 609 transitions. [2021-08-29 03:22:28,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:28,453 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 609 transitions. [2021-08-29 03:22:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-29 03:22:28,454 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:28,454 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-08-29 03:22:28,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 03:22:28,454 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:28,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:28,454 INFO L82 PathProgramCache]: Analyzing trace with hash 862290981, now seen corresponding path program 1 times [2021-08-29 03:22:28,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:28,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790874293] [2021-08-29 03:22:28,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:28,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:28,492 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:28,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:28,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790874293] [2021-08-29 03:22:28,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790874293] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:28,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:28,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:28,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806494314] [2021-08-29 03:22:28,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:28,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:28,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:28,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:28,494 INFO L87 Difference]: Start difference. First operand 408 states and 609 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:28,929 INFO L93 Difference]: Finished difference Result 705 states and 1043 transitions. [2021-08-29 03:22:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:28,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-08-29 03:22:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:28,931 INFO L225 Difference]: With dead ends: 705 [2021-08-29 03:22:28,931 INFO L226 Difference]: Without dead ends: 452 [2021-08-29 03:22:28,932 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:28,932 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 358.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.09ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 421.24ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:28,932 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 637 Unknown, 0 Unchecked, 1.09ms Time], IncrementalHoareTripleChecker [6 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 421.24ms Time] [2021-08-29 03:22:28,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-08-29 03:22:28,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 408. [2021-08-29 03:22:28,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4914004914004915) internal successors, (607), 407 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:28,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 607 transitions. [2021-08-29 03:22:28,938 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 607 transitions. Word has length 86 [2021-08-29 03:22:28,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:28,939 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 607 transitions. [2021-08-29 03:22:28,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 607 transitions. [2021-08-29 03:22:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-29 03:22:28,939 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:28,940 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:28,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 03:22:28,940 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:28,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:28,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1732038594, now seen corresponding path program 1 times [2021-08-29 03:22:28,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:28,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072072700] [2021-08-29 03:22:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:28,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:28,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:28,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072072700] [2021-08-29 03:22:28,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072072700] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:28,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:28,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:28,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734353019] [2021-08-29 03:22:28,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:28,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:28,981 INFO L87 Difference]: Start difference. First operand 408 states and 607 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:29,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:29,527 INFO L93 Difference]: Finished difference Result 930 states and 1377 transitions. [2021-08-29 03:22:29,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:29,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-08-29 03:22:29,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:29,529 INFO L225 Difference]: With dead ends: 930 [2021-08-29 03:22:29,529 INFO L226 Difference]: Without dead ends: 532 [2021-08-29 03:22:29,530 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:29,530 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 97 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 425.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.23ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 523.74ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:29,530 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 0 Invalid, 781 Unknown, 0 Unchecked, 1.23ms Time], IncrementalHoareTripleChecker [8 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 523.74ms Time] [2021-08-29 03:22:29,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-08-29 03:22:29,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 408. [2021-08-29 03:22:29,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4864864864864864) internal successors, (605), 407 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:29,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 605 transitions. [2021-08-29 03:22:29,537 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 605 transitions. Word has length 87 [2021-08-29 03:22:29,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:29,537 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 605 transitions. [2021-08-29 03:22:29,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:29,537 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 605 transitions. [2021-08-29 03:22:29,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-29 03:22:29,538 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:29,538 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:29,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-29 03:22:29,539 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:29,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:29,539 INFO L82 PathProgramCache]: Analyzing trace with hash 442060930, now seen corresponding path program 1 times [2021-08-29 03:22:29,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:29,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786521569] [2021-08-29 03:22:29,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:29,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:29,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:29,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786521569] [2021-08-29 03:22:29,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786521569] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:29,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:29,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:29,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822314632] [2021-08-29 03:22:29,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:29,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:29,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:29,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:29,575 INFO L87 Difference]: Start difference. First operand 408 states and 605 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:30,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:30,149 INFO L93 Difference]: Finished difference Result 779 states and 1151 transitions. [2021-08-29 03:22:30,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:30,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-08-29 03:22:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:30,151 INFO L225 Difference]: With dead ends: 779 [2021-08-29 03:22:30,151 INFO L226 Difference]: Without dead ends: 526 [2021-08-29 03:22:30,152 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:30,152 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 91 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 474.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.30ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 556.92ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:30,152 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 0 Invalid, 769 Unknown, 0 Unchecked, 1.30ms Time], IncrementalHoareTripleChecker [7 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 556.92ms Time] [2021-08-29 03:22:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-08-29 03:22:30,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 408. [2021-08-29 03:22:30,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4815724815724816) internal successors, (603), 407 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:30,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 603 transitions. [2021-08-29 03:22:30,159 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 603 transitions. Word has length 87 [2021-08-29 03:22:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:30,159 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 603 transitions. [2021-08-29 03:22:30,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 603 transitions. [2021-08-29 03:22:30,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-29 03:22:30,160 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:30,160 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:30,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 03:22:30,161 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:30,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:30,161 INFO L82 PathProgramCache]: Analyzing trace with hash 360231296, now seen corresponding path program 1 times [2021-08-29 03:22:30,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:30,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564822798] [2021-08-29 03:22:30,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:30,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:30,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:30,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564822798] [2021-08-29 03:22:30,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564822798] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:30,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:30,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:30,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125641905] [2021-08-29 03:22:30,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:30,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:30,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:30,214 INFO L87 Difference]: Start difference. First operand 408 states and 603 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:30,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:30,727 INFO L93 Difference]: Finished difference Result 850 states and 1248 transitions. [2021-08-29 03:22:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:30,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-08-29 03:22:30,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:30,729 INFO L225 Difference]: With dead ends: 850 [2021-08-29 03:22:30,729 INFO L226 Difference]: Without dead ends: 452 [2021-08-29 03:22:30,729 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.29ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:30,729 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 433.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.04ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 496.34ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:30,730 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 635 Unknown, 0 Unchecked, 1.04ms Time], IncrementalHoareTripleChecker [6 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 496.34ms Time] [2021-08-29 03:22:30,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-08-29 03:22:30,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 408. [2021-08-29 03:22:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4766584766584767) internal successors, (601), 407 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:30,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 601 transitions. [2021-08-29 03:22:30,737 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 601 transitions. Word has length 87 [2021-08-29 03:22:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:30,737 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 601 transitions. [2021-08-29 03:22:30,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:30,737 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 601 transitions. [2021-08-29 03:22:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-29 03:22:30,738 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:30,738 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:30,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-29 03:22:30,739 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:30,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:30,739 INFO L82 PathProgramCache]: Analyzing trace with hash -929746368, now seen corresponding path program 1 times [2021-08-29 03:22:30,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:30,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909621730] [2021-08-29 03:22:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:30,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:30,775 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:30,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:30,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909621730] [2021-08-29 03:22:30,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909621730] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:30,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:30,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:30,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517049146] [2021-08-29 03:22:30,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:30,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:30,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:30,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:30,777 INFO L87 Difference]: Start difference. First operand 408 states and 601 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:31,223 INFO L93 Difference]: Finished difference Result 699 states and 1024 transitions. [2021-08-29 03:22:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:31,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-08-29 03:22:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:31,225 INFO L225 Difference]: With dead ends: 699 [2021-08-29 03:22:31,225 INFO L226 Difference]: Without dead ends: 446 [2021-08-29 03:22:31,225 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:31,226 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 370.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 430.22ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:31,226 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 623 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [5 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 430.22ms Time] [2021-08-29 03:22:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-08-29 03:22:31,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 408. [2021-08-29 03:22:31,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4717444717444716) internal successors, (599), 407 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 599 transitions. [2021-08-29 03:22:31,232 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 599 transitions. Word has length 87 [2021-08-29 03:22:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:31,233 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 599 transitions. [2021-08-29 03:22:31,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:31,233 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 599 transitions. [2021-08-29 03:22:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-29 03:22:31,234 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:31,234 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:31,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-29 03:22:31,234 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:31,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:31,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1973824157, now seen corresponding path program 1 times [2021-08-29 03:22:31,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:31,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657835568] [2021-08-29 03:22:31,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:31,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:31,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:31,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657835568] [2021-08-29 03:22:31,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657835568] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:31,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:31,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:31,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402663663] [2021-08-29 03:22:31,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:31,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:31,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:31,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:31,273 INFO L87 Difference]: Start difference. First operand 408 states and 599 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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) [2021-08-29 03:22:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:31,781 INFO L93 Difference]: Finished difference Result 906 states and 1332 transitions. [2021-08-29 03:22:31,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:31,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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 88 [2021-08-29 03:22:31,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:31,786 INFO L225 Difference]: With dead ends: 906 [2021-08-29 03:22:31,786 INFO L226 Difference]: Without dead ends: 508 [2021-08-29 03:22:31,786 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:31,787 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 85 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 413.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.90ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 490.47ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:31,787 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 0 Invalid, 741 Unknown, 0 Unchecked, 0.90ms Time], IncrementalHoareTripleChecker [4 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 490.47ms Time] [2021-08-29 03:22:31,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2021-08-29 03:22:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 408. [2021-08-29 03:22:31,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4668304668304668) internal successors, (597), 407 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:31,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 597 transitions. [2021-08-29 03:22:31,794 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 597 transitions. Word has length 88 [2021-08-29 03:22:31,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:31,794 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 597 transitions. [2021-08-29 03:22:31,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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) [2021-08-29 03:22:31,794 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 597 transitions. [2021-08-29 03:22:31,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-29 03:22:31,795 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:31,795 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:31,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-29 03:22:31,795 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:31,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:31,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1550177435, now seen corresponding path program 1 times [2021-08-29 03:22:31,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:31,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209685819] [2021-08-29 03:22:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:31,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:31,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:31,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209685819] [2021-08-29 03:22:31,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209685819] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:31,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:31,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:31,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449879425] [2021-08-29 03:22:31,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:31,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:31,832 INFO L87 Difference]: Start difference. First operand 408 states and 597 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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) [2021-08-29 03:22:32,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:32,228 INFO L93 Difference]: Finished difference Result 826 states and 1207 transitions. [2021-08-29 03:22:32,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:32,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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 88 [2021-08-29 03:22:32,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:32,229 INFO L225 Difference]: With dead ends: 826 [2021-08-29 03:22:32,229 INFO L226 Difference]: Without dead ends: 428 [2021-08-29 03:22:32,230 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.25ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:32,230 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 323.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 383.38ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:32,230 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 595 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [2 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 383.38ms Time] [2021-08-29 03:22:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-08-29 03:22:32,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 408. [2021-08-29 03:22:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.461916461916462) internal successors, (595), 407 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:32,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 595 transitions. [2021-08-29 03:22:32,237 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 595 transitions. Word has length 88 [2021-08-29 03:22:32,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:32,238 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 595 transitions. [2021-08-29 03:22:32,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 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) [2021-08-29 03:22:32,238 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 595 transitions. [2021-08-29 03:22:32,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-29 03:22:32,239 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:32,239 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 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] [2021-08-29 03:22:32,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-29 03:22:32,239 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:32,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:32,240 INFO L82 PathProgramCache]: Analyzing trace with hash 114296894, now seen corresponding path program 1 times [2021-08-29 03:22:32,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:32,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339708076] [2021-08-29 03:22:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:32,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:32,273 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 03:22:32,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:32,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339708076] [2021-08-29 03:22:32,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339708076] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:32,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:32,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:22:32,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255804503] [2021-08-29 03:22:32,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:32,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:32,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:32,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:32,275 INFO L87 Difference]: Start difference. First operand 408 states and 595 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:32,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:32,796 INFO L93 Difference]: Finished difference Result 906 states and 1324 transitions. [2021-08-29 03:22:32,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:32,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-08-29 03:22:32,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:32,798 INFO L225 Difference]: With dead ends: 906 [2021-08-29 03:22:32,798 INFO L226 Difference]: Without dead ends: 508 [2021-08-29 03:22:32,798 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.87ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:32,799 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 79 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 423.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 504.72ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:32,799 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 0 Invalid, 743 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [4 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 504.72ms Time] [2021-08-29 03:22:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2021-08-29 03:22:32,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 408. [2021-08-29 03:22:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.457002457002457) internal successors, (593), 407 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 593 transitions. [2021-08-29 03:22:32,805 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 593 transitions. Word has length 89 [2021-08-29 03:22:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:32,806 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 593 transitions. [2021-08-29 03:22:32,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 593 transitions. [2021-08-29 03:22:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-29 03:22:32,807 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:32,807 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 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] [2021-08-29 03:22:32,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-29 03:22:32,807 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:32,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:32,808 INFO L82 PathProgramCache]: Analyzing trace with hash 362443388, now seen corresponding path program 1 times [2021-08-29 03:22:32,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:32,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440515875] [2021-08-29 03:22:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:32,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:32,847 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-08-29 03:22:32,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:32,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440515875] [2021-08-29 03:22:32,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440515875] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:32,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:32,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:22:32,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396082273] [2021-08-29 03:22:32,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:22:32,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:32,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:22:32,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:22:32,849 INFO L87 Difference]: Start difference. First operand 408 states and 593 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) [2021-08-29 03:22:33,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:33,218 INFO L93 Difference]: Finished difference Result 806 states and 1178 transitions. [2021-08-29 03:22:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:22:33,219 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 89 [2021-08-29 03:22:33,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:33,221 INFO L225 Difference]: With dead ends: 806 [2021-08-29 03:22:33,221 INFO L226 Difference]: Without dead ends: 555 [2021-08-29 03:22:33,221 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:22:33,222 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 121 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 301.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 358.09ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:33,222 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 0 Invalid, 489 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [4 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 358.09ms Time] [2021-08-29 03:22:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2021-08-29 03:22:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2021-08-29 03:22:33,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 554 states have (on average 1.4530685920577617) internal successors, (805), 554 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:33,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 805 transitions. [2021-08-29 03:22:33,230 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 805 transitions. Word has length 89 [2021-08-29 03:22:33,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:33,230 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 805 transitions. [2021-08-29 03:22:33,230 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) [2021-08-29 03:22:33,230 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 805 transitions. [2021-08-29 03:22:33,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-08-29 03:22:33,231 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:33,231 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 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, 1, 1] [2021-08-29 03:22:33,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-29 03:22:33,231 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:33,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:33,232 INFO L82 PathProgramCache]: Analyzing trace with hash 846505389, now seen corresponding path program 1 times [2021-08-29 03:22:33,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:33,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147038755] [2021-08-29 03:22:33,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:33,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-08-29 03:22:33,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:22:33,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147038755] [2021-08-29 03:22:33,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147038755] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:33,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:33,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:22:33,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171687083] [2021-08-29 03:22:33,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:22:33,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:22:33,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:22:33,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:22:33,264 INFO L87 Difference]: Start difference. First operand 555 states and 805 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:33,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:33,592 INFO L93 Difference]: Finished difference Result 1102 states and 1605 transitions. [2021-08-29 03:22:33,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:22:33,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 91 [2021-08-29 03:22:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:33,595 INFO L225 Difference]: With dead ends: 1102 [2021-08-29 03:22:33,595 INFO L226 Difference]: Without dead ends: 704 [2021-08-29 03:22:33,595 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:22:33,595 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 138 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 265.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 314.92ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:33,596 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 0 Invalid, 331 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [6 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 314.92ms Time] [2021-08-29 03:22:33,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-08-29 03:22:33,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2021-08-29 03:22:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 703 states have (on average 1.4551920341394025) internal successors, (1023), 703 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:33,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1023 transitions. [2021-08-29 03:22:33,606 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1023 transitions. Word has length 91 [2021-08-29 03:22:33,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:33,606 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 1023 transitions. [2021-08-29 03:22:33,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:33,606 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1023 transitions. [2021-08-29 03:22:33,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-08-29 03:22:33,607 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:33,608 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2021-08-29 03:22:33,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-29 03:22:33,608 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:33,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:33,608 INFO L82 PathProgramCache]: Analyzing trace with hash 797599730, now seen corresponding path program 1 times [2021-08-29 03:22:33,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:22:33,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452740984] [2021-08-29 03:22:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:33,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:22:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:22:33,732 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 03:22:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:22:33,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 03:22:33,913 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 03:22:33,914 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:22:33,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-29 03:22:33,928 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:22:33,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:22:33 BoogieIcfgContainer [2021-08-29 03:22:33,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:22:33,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:22:33,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:22:33,998 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:22:33,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:22:20" (3/4) ... [2021-08-29 03:22:34,000 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 03:22:34,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:22:34,004 INFO L158 Benchmark]: Toolchain (without parser) took 14879.93ms. Allocated memory was 56.6MB in the beginning and 125.8MB in the end (delta: 69.2MB). Free memory was 33.1MB in the beginning and 33.2MB in the end (delta: -123.4kB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2021-08-29 03:22:34,004 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:22:34,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.45ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 32.9MB in the beginning and 38.6MB in the end (delta: -5.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-08-29 03:22:34,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.69ms. Allocated memory is still 69.2MB. Free memory was 38.6MB in the beginning and 34.3MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 03:22:34,004 INFO L158 Benchmark]: Boogie Preprocessor took 82.90ms. Allocated memory is still 69.2MB. Free memory was 34.3MB in the beginning and 41.2MB in the end (delta: -6.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-08-29 03:22:34,005 INFO L158 Benchmark]: RCFGBuilder took 413.12ms. Allocated memory is still 69.2MB. Free memory was 41.2MB in the beginning and 27.2MB in the end (delta: 14.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2021-08-29 03:22:34,005 INFO L158 Benchmark]: TraceAbstraction took 13876.72ms. Allocated memory was 69.2MB in the beginning and 125.8MB in the end (delta: 56.6MB). Free memory was 26.9MB in the beginning and 33.2MB in the end (delta: -6.3MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2021-08-29 03:22:34,005 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 125.8MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:22:34,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.45ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 32.9MB in the beginning and 38.6MB in the end (delta: -5.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.69ms. Allocated memory is still 69.2MB. Free memory was 38.6MB in the beginning and 34.3MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.90ms. Allocated memory is still 69.2MB. Free memory was 34.3MB in the beginning and 41.2MB in the end (delta: -6.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 413.12ms. Allocated memory is still 69.2MB. Free memory was 41.2MB in the beginning and 27.2MB in the end (delta: 14.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13876.72ms. Allocated memory was 69.2MB in the beginning and 125.8MB in the end (delta: 56.6MB). Free memory was 26.9MB in the beginning and 33.2MB in the end (delta: -6.3MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 125.8MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1643]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1334. Possible FailurePath: [L1044] static int init = 1; [L1045] static SSL_METHOD SSLv3_client_data ; VAL [init=1, SSLv3_client_data={6:0}] [L1067] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1071] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1072] s->ctx = malloc(sizeof(SSL_CTX)) [L1073] s->session = malloc(sizeof(SSL_SESSION)) [L1074] s->state = 12292 [L1075] s->version = __VERIFIER_nondet_int() [L1082] BUF_MEM *buf ; [L1083] unsigned long tmp ; [L1084] unsigned long l ; [L1085] long num1 ; [L1086] void (*cb)() ; [L1087] int ret ; [L1088] int new_state ; [L1089] int state ; [L1090] int skip ; [L1091] int tmp___1 = __VERIFIER_nondet_int() ; [L1092] int tmp___2 = __VERIFIER_nondet_int() ; [L1093] int tmp___3 = __VERIFIER_nondet_int() ; [L1094] int tmp___4 = __VERIFIER_nondet_int() ; [L1095] int tmp___5 = __VERIFIER_nondet_int() ; [L1096] int tmp___6 = __VERIFIER_nondet_int() ; [L1097] int tmp___7 = __VERIFIER_nondet_int() ; [L1098] int tmp___8 = __VERIFIER_nondet_int() ; [L1099] long tmp___9 = __VERIFIER_nondet_long() ; [L1100] int blastFlag ; [L1103] blastFlag = 0 [L1104] s->hit=__VERIFIER_nondet_int () [L1105] s->state = 12292 [L1106] tmp = __VERIFIER_nondet_int() [L1107] cb = (void (*)())((void *)0) [L1108] ret = -1 [L1109] skip = 0 [L1110] EXPR s->info_callback VAL [init=1, SSLv3_client_data={6:0}] [L1110] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1111] EXPR s->info_callback [L1111] cb = s->info_callback [L1119] EXPR s->in_handshake [L1119] s->in_handshake += 1 [L1120] COND FALSE !(tmp___1 & 12288) VAL [init=1, SSLv3_client_data={6:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={6:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1133] COND TRUE s->state == 12292 [L1236] s->new_session = 1 [L1237] s->state = 4096 [L1238] EXPR s->ctx [L1238] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1238] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1243] s->server = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1244] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [init=1, SSLv3_client_data={6:0}] [L1249] EXPR s->version VAL [init=1, SSLv3_client_data={6:0}] [L1249] COND FALSE !((s->version & 65280) != 768) [L1255] s->type = 4096 [L1256] EXPR s->init_buf VAL [init=1, SSLv3_client_data={6:0}] [L1256] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1274] COND FALSE !(! tmp___4) VAL [init=1, SSLv3_client_data={6:0}] [L1280] COND FALSE !(! tmp___5) [L1286] s->state = 4368 [L1287] EXPR s->ctx [L1287] EXPR (s->ctx)->stats.sess_connect [L1287] (s->ctx)->stats.sess_connect += 1 [L1288] s->init_num = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={6:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={6:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1148] COND TRUE s->state == 4368 [L1292] s->shutdown = 0 [L1293] ret = __VERIFIER_nondet_int() [L1294] COND TRUE blastFlag == 0 [L1295] blastFlag = 1 VAL [init=1, SSLv3_client_data={6:0}] [L1299] COND FALSE !(ret <= 0) [L1304] s->state = 4384 [L1305] s->init_num = 0 [L1306] EXPR s->bbio [L1306] EXPR s->wbio VAL [init=1, SSLv3_client_data={6:0}] [L1306] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={6:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={6:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1154] COND TRUE s->state == 4384 [L1314] ret = __VERIFIER_nondet_int() [L1315] COND TRUE blastFlag == 1 [L1316] blastFlag = 2 VAL [init=1, SSLv3_client_data={6:0}] [L1320] COND FALSE !(ret <= 0) [L1325] s->hit VAL [init=1, SSLv3_client_data={6:0}] [L1325] COND FALSE !(s->hit) [L1328] s->state = 4400 VAL [init=1, SSLv3_client_data={6:0}] [L1330] s->init_num = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={6:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={6:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1160] COND TRUE s->state == 4400 [L1334] EXPR s->s3 [L1334] EXPR (s->s3)->tmp.new_cipher [L1334] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [init=1, SSLv3_client_data={6:0}] [L1334] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1337] ret = __VERIFIER_nondet_int() [L1338] COND TRUE blastFlag == 2 [L1339] blastFlag = 3 VAL [init=1, SSLv3_client_data={6:0}] [L1347] COND FALSE !(ret <= 0) VAL [init=1, SSLv3_client_data={6:0}] [L1353] s->state = 4416 [L1354] s->init_num = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={6:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={6:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1166] COND TRUE s->state == 4416 [L1358] ret = __VERIFIER_nondet_int() [L1359] COND TRUE blastFlag == 3 [L1360] blastFlag = 4 VAL [init=1, SSLv3_client_data={6:0}] [L1364] COND FALSE !(ret <= 0) [L1369] s->state = 4432 [L1370] s->init_num = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1371] COND FALSE !(! tmp___6) VAL [init=1, SSLv3_client_data={6:0}] [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={6:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={6:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={6:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1166] COND FALSE !(s->state == 4416) [L1169] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1169] COND FALSE !(s->state == 4417) [L1172] EXPR s->state VAL [init=1, SSLv3_client_data={6:0}] [L1172] COND TRUE s->state == 4432 [L1380] ret = __VERIFIER_nondet_int() [L1381] COND TRUE blastFlag == 4 VAL [init=1, SSLv3_client_data={6:0}] [L1643] reach_error() VAL [init=1, SSLv3_client_data={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13759.64ms, OverallIterations: 24, TraceHistogramMax: 6, EmptinessCheckTime: 32.31ms, AutomataDifference: 11674.62ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 8.08ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1779 SdHoareTripleChecker+Valid, 11043.48ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1779 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 9244.31ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6315 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14975 IncrementalHoareTripleChecker+Invalid, 15110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 0 mSDtfsCounter, 14975 mSolverCounterSat, 32.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 46 SyntacticMatches, 19 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 214.76ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=704occurred in iteration=23, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 226.10ms AutomataMinimizationTime, 23 MinimizatonAttempts, 1525 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 94.89ms SsaConstructionTime, 486.07ms SatisfiabilityAnalysisTime, 820.73ms InterpolantComputationTime, 1918 NumberOfCodeBlocks, 1918 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1783 ConstructedInterpolants, 0 QuantifiedInterpolants, 4707 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 1532/1532 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-29 03:22:34,044 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 03:22:35,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:22:35,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:22:35,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:22:35,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:22:35,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:22:35,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:22:35,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:22:35,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:22:35,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:22:35,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:22:35,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:22:35,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:22:35,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:22:35,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:22:35,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:22:35,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:22:35,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:22:35,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:22:35,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:22:35,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:22:35,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:22:35,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:22:35,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:22:35,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:22:35,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:22:35,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:22:35,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:22:35,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:22:35,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:22:35,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:22:35,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:22:35,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:22:35,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:22:35,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:22:35,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:22:35,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:22:35,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:22:35,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:22:35,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:22:35,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:22:35,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 03:22:35,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:22:35,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:22:35,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:22:35,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:22:35,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:22:35,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:22:35,631 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:22:35,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:22:35,631 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:22:35,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:22:35,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:22:35,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:22:35,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:22:35,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:22:35,633 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 03:22:35,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 03:22:35,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:22:35,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:22:35,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:22:35,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:22:35,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:22:35,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:22:35,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:22:35,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:22:35,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:22:35,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:22:35,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:22:35,636 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 03:22:35,636 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 03:22:35,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:22:35,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:22:35,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 03:22:35,637 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da87230a36c8669a54c71c71718f9b36b6de0312 [2021-08-29 03:22:35,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:22:35,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:22:35,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:22:35,915 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:22:35,916 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:22:35,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c [2021-08-29 03:22:35,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c41d285/f5d7daca0d7149f69c09964cb2a66214/FLAG645b39244 [2021-08-29 03:22:36,414 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:22:36,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c [2021-08-29 03:22:36,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c41d285/f5d7daca0d7149f69c09964cb2a66214/FLAG645b39244 [2021-08-29 03:22:36,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c41d285/f5d7daca0d7149f69c09964cb2a66214 [2021-08-29 03:22:36,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:22:36,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:22:36,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:22:36,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:22:36,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:22:36,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:22:36" (1/1) ... [2021-08-29 03:22:36,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725a2928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:36, skipping insertion in model container [2021-08-29 03:22:36,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:22:36" (1/1) ... [2021-08-29 03:22:36,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:22:36,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:22:37,109 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/s3_clnt.blast.04.i.cil-1.c[64361,64374] [2021-08-29 03:22:37,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:22:37,140 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:22:37,210 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/s3_clnt.blast.04.i.cil-1.c[64361,64374] [2021-08-29 03:22:37,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:22:37,224 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:22:37,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37 WrapperNode [2021-08-29 03:22:37,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:22:37,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:22:37,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:22:37,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:22:37,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:22:37,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:22:37,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:22:37,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:22:37,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:22:37,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:22:37,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:22:37,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:22:37,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (1/1) ... [2021-08-29 03:22:37,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:22:37,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:22:37,392 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) [2021-08-29 03:22:37,401 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 [2021-08-29 03:22:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 03:22:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-29 03:22:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:22:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 03:22:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-29 03:22:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-29 03:22:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:22:37,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:22:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 03:22:37,600 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-29 03:22:37,842 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-29 03:22:37,843 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-29 03:22:37,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:22:37,850 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 03:22:37,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:22:37 BoogieIcfgContainer [2021-08-29 03:22:37,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:22:37,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:22:37,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:22:37,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:22:37,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:22:36" (1/3) ... [2021-08-29 03:22:37,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b616ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:22:37, skipping insertion in model container [2021-08-29 03:22:37,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:22:37" (2/3) ... [2021-08-29 03:22:37,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b616ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:22:37, skipping insertion in model container [2021-08-29 03:22:37,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:22:37" (3/3) ... [2021-08-29 03:22:37,859 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-1.c [2021-08-29 03:22:37,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:22:37,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 03:22:37,909 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:22:37,914 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 [2021-08-29 03:22:37,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 03:22:37,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 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) [2021-08-29 03:22:37,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 03:22:37,936 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:37,936 INFO L513 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] [2021-08-29 03:22:37,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:37,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:37,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-08-29 03:22:37,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:22:37,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540639688] [2021-08-29 03:22:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:37,952 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:22:37,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:22:37,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:22:37,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 03:22:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:38,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:22:38,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:22:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:22:38,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:22:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:22:38,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:22:38,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540639688] [2021-08-29 03:22:38,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540639688] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:38,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:38,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:22:38,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329837800] [2021-08-29 03:22:38,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:38,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:22:38,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:38,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:38,367 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 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) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:41,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:41,195 INFO L93 Difference]: Finished difference Result 487 states and 823 transitions. [2021-08-29 03:22:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:41,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 [2021-08-29 03:22:41,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:41,205 INFO L225 Difference]: With dead ends: 487 [2021-08-29 03:22:41,206 INFO L226 Difference]: Without dead ends: 314 [2021-08-29 03:22:41,208 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.74ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:41,210 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 359 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2384.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.64ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2731.40ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:41,211 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 0 Invalid, 632 Unknown, 0 Unchecked, 7.64ms Time], IncrementalHoareTripleChecker [16 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 2731.40ms Time] [2021-08-29 03:22:41,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-08-29 03:22:41,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-08-29 03:22:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.5015974440894568) internal successors, (470), 313 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 470 transitions. [2021-08-29 03:22:41,246 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 470 transitions. Word has length 24 [2021-08-29 03:22:41,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:41,246 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 470 transitions. [2021-08-29 03:22:41,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:41,247 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 470 transitions. [2021-08-29 03:22:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-29 03:22:41,249 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:41,249 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:22:41,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 03:22:41,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:22:41,454 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:41,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:41,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1854239308, now seen corresponding path program 1 times [2021-08-29 03:22:41,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:22:41,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099724866] [2021-08-29 03:22:41,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:41,456 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:22:41,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:22:41,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:22:41,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 03:22:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:41,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:22:41,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:22:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:22:41,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:22:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:22:41,876 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:22:41,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099724866] [2021-08-29 03:22:41,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099724866] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:41,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:41,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:22:41,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398384409] [2021-08-29 03:22:41,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:41,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:22:41,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:41,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:41,880 INFO L87 Difference]: Start difference. First operand 314 states and 470 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:44,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-08-29 03:22:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:46,590 INFO L93 Difference]: Finished difference Result 721 states and 1085 transitions. [2021-08-29 03:22:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:46,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-08-29 03:22:46,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:46,593 INFO L225 Difference]: With dead ends: 721 [2021-08-29 03:22:46,593 INFO L226 Difference]: Without dead ends: 515 [2021-08-29 03:22:46,594 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.42ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:46,595 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 270 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4358.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.08ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4656.27ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:46,595 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 0 Invalid, 637 Unknown, 0 Unchecked, 4.08ms Time], IncrementalHoareTripleChecker [10 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 4656.27ms Time] [2021-08-29 03:22:46,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-08-29 03:22:46,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2021-08-29 03:22:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.4941634241245136) internal successors, (768), 514 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:46,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 768 transitions. [2021-08-29 03:22:46,616 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 768 transitions. Word has length 60 [2021-08-29 03:22:46,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:46,617 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 768 transitions. [2021-08-29 03:22:46,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:46,617 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 768 transitions. [2021-08-29 03:22:46,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-08-29 03:22:46,620 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:46,620 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2021-08-29 03:22:46,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-29 03:22:46,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:22:46,829 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:46,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:46,829 INFO L82 PathProgramCache]: Analyzing trace with hash 465583256, now seen corresponding path program 1 times [2021-08-29 03:22:46,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:22:46,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374198728] [2021-08-29 03:22:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:46,830 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:22:46,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:22:46,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:22:46,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 03:22:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:47,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:22:47,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:22:48,400 INFO L354 Elim1Store]: treesize reduction 182, result has 23.2 percent of original size [2021-08-29 03:22:48,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 64 [2021-08-29 03:22:48,482 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-08-29 03:22:48,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 24 [2021-08-29 03:22:48,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-08-29 03:22:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-08-29 03:22:48,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:22:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-08-29 03:22:48,891 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:22:48,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374198728] [2021-08-29 03:22:48,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374198728] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:48,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:48,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-29 03:22:48,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762131037] [2021-08-29 03:22:48,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:48,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:22:48,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:48,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:48,893 INFO L87 Difference]: Start difference. First operand 515 states and 768 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:51,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:51,400 INFO L93 Difference]: Finished difference Result 1027 states and 1530 transitions. [2021-08-29 03:22:51,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:51,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 98 [2021-08-29 03:22:51,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:51,402 INFO L225 Difference]: With dead ends: 1027 [2021-08-29 03:22:51,402 INFO L226 Difference]: Without dead ends: 519 [2021-08-29 03:22:51,404 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:51,405 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2293.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.96ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2474.13ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:51,405 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 498 Unknown, 0 Unchecked, 1.96ms Time], IncrementalHoareTripleChecker [1 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2474.13ms Time] [2021-08-29 03:22:51,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2021-08-29 03:22:51,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 518. [2021-08-29 03:22:51,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 517 states have (on average 1.4912959381044488) internal successors, (771), 517 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:51,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 771 transitions. [2021-08-29 03:22:51,419 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 771 transitions. Word has length 98 [2021-08-29 03:22:51,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:51,421 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 771 transitions. [2021-08-29 03:22:51,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 771 transitions. [2021-08-29 03:22:51,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-08-29 03:22:51,424 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:51,425 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2021-08-29 03:22:51,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 03:22:51,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:22:51,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:51,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:51,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1811187728, now seen corresponding path program 1 times [2021-08-29 03:22:51,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:22:51,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429440494] [2021-08-29 03:22:51,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:51,635 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:22:51,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:22:51,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:22:51,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 03:22:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:51,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:22:51,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:22:51,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-08-29 03:22:51,985 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-08-29 03:22:51,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-08-29 03:22:52,118 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-08-29 03:22:52,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2021-08-29 03:22:52,206 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-08-29 03:22:52,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:22:52,435 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-08-29 03:22:52,436 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:22:52,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429440494] [2021-08-29 03:22:52,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429440494] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:52,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:52,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2021-08-29 03:22:52,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395855153] [2021-08-29 03:22:52,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 03:22:52,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:22:52,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 03:22:52,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:22:52,437 INFO L87 Difference]: Start difference. First operand 518 states and 771 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:57,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:57,405 INFO L93 Difference]: Finished difference Result 1848 states and 2767 transitions. [2021-08-29 03:22:57,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 03:22:57,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 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 112 [2021-08-29 03:22:57,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:57,410 INFO L225 Difference]: With dead ends: 1848 [2021-08-29 03:22:57,410 INFO L226 Difference]: Without dead ends: 1340 [2021-08-29 03:22:57,411 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 63.08ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 03:22:57,412 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 328 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4448.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.04ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4876.71ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:57,412 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 0 Invalid, 1010 Unknown, 0 Unchecked, 9.04ms Time], IncrementalHoareTripleChecker [65 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 4876.71ms Time] [2021-08-29 03:22:57,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2021-08-29 03:22:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 622. [2021-08-29 03:22:57,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 1.5217391304347827) internal successors, (945), 621 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 945 transitions. [2021-08-29 03:22:57,438 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 945 transitions. Word has length 112 [2021-08-29 03:22:57,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:57,439 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 945 transitions. [2021-08-29 03:22:57,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:22:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 945 transitions. [2021-08-29 03:22:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-08-29 03:22:57,443 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:57,443 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2021-08-29 03:22:57,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 03:22:57,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:22:57,653 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:57,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:57,653 INFO L82 PathProgramCache]: Analyzing trace with hash 797599730, now seen corresponding path program 1 times [2021-08-29 03:22:57,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:22:57,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515652415] [2021-08-29 03:22:57,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:57,654 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:22:57,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:22:57,656 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:22:57,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 03:22:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:22:57,988 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 03:22:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:22:58,499 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-29 03:22:58,500 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 03:22:58,500 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:22:58,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-29 03:22:58,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:22:58,718 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:22:58,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:22:58 BoogieIcfgContainer [2021-08-29 03:22:58,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:22:58,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:22:58,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:22:58,821 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:22:58,822 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:22:37" (3/4) ... [2021-08-29 03:22:58,823 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 03:22:58,914 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 03:22:58,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:22:58,914 INFO L158 Benchmark]: Toolchain (without parser) took 22148.56ms. Allocated memory was 54.5MB in the beginning and 90.2MB in the end (delta: 35.7MB). Free memory was 30.6MB in the beginning and 53.6MB in the end (delta: -23.0MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2021-08-29 03:22:58,915 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 54.5MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:22:58,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.90ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 30.4MB in the beginning and 40.5MB in the end (delta: -10.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-08-29 03:22:58,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.20ms. Allocated memory is still 73.4MB. Free memory was 40.5MB in the beginning and 52.3MB in the end (delta: -11.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2021-08-29 03:22:58,916 INFO L158 Benchmark]: Boogie Preprocessor took 49.25ms. Allocated memory is still 73.4MB. Free memory was 52.3MB in the beginning and 45.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 03:22:58,916 INFO L158 Benchmark]: RCFGBuilder took 486.15ms. Allocated memory is still 73.4MB. Free memory was 45.7MB in the beginning and 39.1MB in the end (delta: 6.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-08-29 03:22:58,916 INFO L158 Benchmark]: TraceAbstraction took 20966.73ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 38.7MB in the beginning and 27.1MB in the end (delta: 11.6MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2021-08-29 03:22:58,917 INFO L158 Benchmark]: Witness Printer took 93.12ms. Allocated memory is still 90.2MB. Free memory was 26.3MB in the beginning and 53.6MB in the end (delta: -27.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 03:22:58,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 54.5MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.90ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 30.4MB in the beginning and 40.5MB in the end (delta: -10.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.20ms. Allocated memory is still 73.4MB. Free memory was 40.5MB in the beginning and 52.3MB in the end (delta: -11.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.25ms. Allocated memory is still 73.4MB. Free memory was 52.3MB in the beginning and 45.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 486.15ms. Allocated memory is still 73.4MB. Free memory was 45.7MB in the beginning and 39.1MB in the end (delta: 6.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 20966.73ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 38.7MB in the beginning and 27.1MB in the end (delta: 11.6MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Witness Printer took 93.12ms. Allocated memory is still 90.2MB. Free memory was 26.3MB in the beginning and 53.6MB in the end (delta: -27.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1643]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1044] static int init = 1; [L1045] static SSL_METHOD SSLv3_client_data ; VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1067] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1071] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1072] s->ctx = malloc(sizeof(SSL_CTX)) [L1073] s->session = malloc(sizeof(SSL_SESSION)) [L1074] s->state = 12292 [L1075] s->version = __VERIFIER_nondet_int() [L1082] BUF_MEM *buf ; [L1083] unsigned long tmp ; [L1084] unsigned long l ; [L1085] long num1 ; [L1086] void (*cb)() ; [L1087] int ret ; [L1088] int new_state ; [L1089] int state ; [L1090] int skip ; [L1091] int tmp___1 = __VERIFIER_nondet_int() ; [L1092] int tmp___2 = __VERIFIER_nondet_int() ; [L1093] int tmp___3 = __VERIFIER_nondet_int() ; [L1094] int tmp___4 = __VERIFIER_nondet_int() ; [L1095] int tmp___5 = __VERIFIER_nondet_int() ; [L1096] int tmp___6 = __VERIFIER_nondet_int() ; [L1097] int tmp___7 = __VERIFIER_nondet_int() ; [L1098] int tmp___8 = __VERIFIER_nondet_int() ; [L1099] long tmp___9 = __VERIFIER_nondet_long() ; [L1100] int blastFlag ; [L1103] blastFlag = 0 [L1104] s->hit=__VERIFIER_nondet_int () [L1105] s->state = 12292 [L1106] tmp = __VERIFIER_nondet_int() [L1107] cb = (void (*)())((void *)0) [L1108] ret = -1 [L1109] skip = 0 [L1110] EXPR s->info_callback VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1110] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1111] EXPR s->info_callback [L1111] cb = s->info_callback [L1119] EXPR s->in_handshake [L1119] s->in_handshake += 1 [L1120] COND FALSE !(tmp___1 & 12288) VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1133] COND TRUE s->state == 12292 [L1236] s->new_session = 1 [L1237] s->state = 4096 [L1238] EXPR s->ctx [L1238] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1238] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1243] s->server = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1244] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1249] EXPR s->version VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1249] COND FALSE !((s->version & 65280) != 768) [L1255] s->type = 4096 [L1256] EXPR s->init_buf VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1256] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1274] COND FALSE !(! tmp___4) VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1280] COND FALSE !(! tmp___5) [L1286] s->state = 4368 [L1287] EXPR s->ctx [L1287] EXPR (s->ctx)->stats.sess_connect [L1287] (s->ctx)->stats.sess_connect += 1 [L1288] s->init_num = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1148] COND TRUE s->state == 4368 [L1292] s->shutdown = 0 [L1293] ret = __VERIFIER_nondet_int() [L1294] COND TRUE blastFlag == 0 [L1295] blastFlag = 1 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1299] COND FALSE !(ret <= 0) [L1304] s->state = 4384 [L1305] s->init_num = 0 [L1306] EXPR s->bbio [L1306] EXPR s->wbio VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1306] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1154] COND TRUE s->state == 4384 [L1314] ret = __VERIFIER_nondet_int() [L1315] COND TRUE blastFlag == 1 [L1316] blastFlag = 2 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1320] COND FALSE !(ret <= 0) [L1325] s->hit VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1325] COND FALSE !(s->hit) [L1328] s->state = 4400 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1330] s->init_num = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1160] COND TRUE s->state == 4400 [L1334] EXPR s->s3 [L1334] EXPR (s->s3)->tmp.new_cipher [L1334] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1334] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1337] ret = __VERIFIER_nondet_int() [L1338] COND TRUE blastFlag == 2 [L1339] blastFlag = 3 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1347] COND FALSE !(ret <= 0) VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1353] s->state = 4416 [L1354] s->init_num = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1166] COND TRUE s->state == 4416 [L1358] ret = __VERIFIER_nondet_int() [L1359] COND TRUE blastFlag == 3 [L1360] blastFlag = 4 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1364] COND FALSE !(ret <= 0) [L1369] s->state = 4432 [L1370] s->init_num = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1371] COND FALSE !(! tmp___6) VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] EXPR s->s3 [L1602] EXPR (s->s3)->tmp.reuse_message VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1602] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1631] skip = 0 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1130] COND TRUE 1 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1166] COND FALSE !(s->state == 4416) [L1169] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1169] COND FALSE !(s->state == 4417) [L1172] EXPR s->state VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1172] COND TRUE s->state == 4432 [L1380] ret = __VERIFIER_nondet_int() [L1381] COND TRUE blastFlag == 4 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1643] reach_error() VAL [init=1, SSLv3_client_data={-2147483569:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20809.40ms, OverallIterations: 5, TraceHistogramMax: 6, EmptinessCheckTime: 22.70ms, AutomataDifference: 15078.44ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 10.00ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 964 SdHoareTripleChecker+Valid, 14738.51ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 964 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 13485.13ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1250 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2685 IncrementalHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 0 mSDtfsCounter, 2685 mSolverCounterSat, 22.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 583 GetRequests, 567 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 104.95ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=622occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 85.76ms AutomataMinimizationTime, 4 MinimizatonAttempts, 719 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 172.23ms SsaConstructionTime, 583.31ms SatisfiabilityAnalysisTime, 3006.05ms InterpolantComputationTime, 406 NumberOfCodeBlocks, 406 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 580 ConstructedInterpolants, 0 QuantifiedInterpolants, 1274 SizeOfPredicates, 8 NumberOfNonLiveVariables, 850 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 592/592 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-29 03:22:58,967 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...