./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl/s3_clnt.blast.03.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.03.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 8334dcb0cdaf6693a0e55f9663f2e64fc956eb05 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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.03.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 8334dcb0cdaf6693a0e55f9663f2e64fc956eb05 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:21:33,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:21:33,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:21:33,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:21:33,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:21:33,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:21:33,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:21:33,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:21:33,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:21:33,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:21:33,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:21:33,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:21:33,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:21:33,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:21:33,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:21:33,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:21:33,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:21:33,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:21:33,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:21:33,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:21:33,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:21:33,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:21:33,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:21:33,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:21:33,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:21:33,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:21:33,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:21:33,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:21:33,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:21:33,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:21:33,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:21:33,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:21:33,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:21:33,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:21:33,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:21:33,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:21:33,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:21:33,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:21:33,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:21:33,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:21:33,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:21:33,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 03:21:33,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:21:33,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:21:33,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:21:33,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:21:33,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:21:33,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:21:33,631 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:21:33,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:21:33,632 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:21:33,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 03:21:33,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:21:33,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:21:33,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:21:33,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:21:33,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:21:33,633 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:21:33,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:21:33,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:21:33,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:21:33,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:21:33,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:21:33,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:21:33,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:21:33,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:21:33,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:21:33,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:21:33,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 03:21:33,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 03:21:33,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:21:33,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:21:33,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8334dcb0cdaf6693a0e55f9663f2e64fc956eb05 [2021-08-29 03:21:33,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:21:33,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:21:33,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:21:33,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:21:33,890 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:21:33,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-08-29 03:21:33,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e6a38c0/cbeb15064b2543c9ba859532bf0cece3/FLAG21ec5f179 [2021-08-29 03:21:34,373 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:21:34,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-08-29 03:21:34,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e6a38c0/cbeb15064b2543c9ba859532bf0cece3/FLAG21ec5f179 [2021-08-29 03:21:34,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e6a38c0/cbeb15064b2543c9ba859532bf0cece3 [2021-08-29 03:21:34,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:21:34,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:21:34,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:21:34,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:21:34,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:21:34,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:21:34" (1/1) ... [2021-08-29 03:21:34,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215735fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:34, skipping insertion in model container [2021-08-29 03:21:34,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:21:34" (1/1) ... [2021-08-29 03:21:34,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:21:34,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:21:35,004 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.03.i.cil-1.c[64353,64366] [2021-08-29 03:21:35,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:21:35,033 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:21:35,095 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.03.i.cil-1.c[64353,64366] [2021-08-29 03:21:35,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:21:35,118 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:21:35,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35 WrapperNode [2021-08-29 03:21:35,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:21:35,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:21:35,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:21:35,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:21:35,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:21:35,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:21:35,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:21:35,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:21:35,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:21:35,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:21:35,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:21:35,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:21:35,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (1/1) ... [2021-08-29 03:21:35,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:21:35,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:21:35,295 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 03:21:35,313 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 03:21:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-29 03:21:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:21:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 03:21:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 03:21:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-29 03:21:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 03:21:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-29 03:21:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:21:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:21:35,477 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-29 03:21:35,709 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-29 03:21:35,709 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-29 03:21:35,714 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:21:35,717 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 03:21:35,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:21:35 BoogieIcfgContainer [2021-08-29 03:21:35,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:21:35,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:21:35,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:21:35,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:21:35,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:21:34" (1/3) ... [2021-08-29 03:21:35,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4bfd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:21:35, skipping insertion in model container [2021-08-29 03:21:35,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:35" (2/3) ... [2021-08-29 03:21:35,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4bfd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:21:35, skipping insertion in model container [2021-08-29 03:21:35,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:21:35" (3/3) ... [2021-08-29 03:21:35,725 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-1.c [2021-08-29 03:21:35,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:21:35,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 03:21:35,778 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:21:35,784 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 03:21:35,784 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 03:21:35,798 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 03:21:35,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 03:21:35,810 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:35,811 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 03:21:35,811 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:35,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-08-29 03:21:35,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:35,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715179894] [2021-08-29 03:21:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:35,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:36,108 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 03:21:36,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:36,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715179894] [2021-08-29 03:21:36,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715179894] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:36,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:36,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:36,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369253867] [2021-08-29 03:21:36,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:36,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:36,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:36,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:36,137 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 03:21:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:36,738 INFO L93 Difference]: Finished difference Result 255 states and 430 transitions. [2021-08-29 03:21:36,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:36,741 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 03:21:36,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:36,746 INFO L225 Difference]: With dead ends: 255 [2021-08-29 03:21:36,747 INFO L226 Difference]: Without dead ends: 116 [2021-08-29 03:21:36,750 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.21ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:36,754 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 454.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.08ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 553.53ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:36,754 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 633 Unknown, 0 Unchecked, 4.08ms Time], IncrementalHoareTripleChecker [1 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 553.53ms Time] [2021-08-29 03:21:36,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-08-29 03:21:36,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2021-08-29 03:21:36,789 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 03:21:36,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-08-29 03:21:36,791 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-08-29 03:21:36,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:36,801 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-08-29 03:21:36,801 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 03:21:36,801 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-08-29 03:21:36,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-29 03:21:36,802 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:36,802 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 03:21:36,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 03:21:36,803 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:36,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:36,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1001988123, now seen corresponding path program 1 times [2021-08-29 03:21:36,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:36,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142739455] [2021-08-29 03:21:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:36,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:36,868 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 03:21:36,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:36,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142739455] [2021-08-29 03:21:36,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142739455] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:36,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:36,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:21:36,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347812590] [2021-08-29 03:21:36,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:21:36,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:21:36,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:21:36,871 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 03:21:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:37,214 INFO L93 Difference]: Finished difference Result 321 states and 484 transitions. [2021-08-29 03:21:37,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:21:37,215 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 03:21:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:37,216 INFO L225 Difference]: With dead ends: 321 [2021-08-29 03:21:37,216 INFO L226 Difference]: Without dead ends: 216 [2021-08-29 03:21:37,217 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:21:37,218 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 124 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 260.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.35ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 327.69ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:37,218 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 0 Invalid, 333 Unknown, 0 Unchecked, 1.35ms Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 327.69ms Time] [2021-08-29 03:21:37,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-08-29 03:21:37,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-08-29 03:21:37,228 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 03:21:37,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 320 transitions. [2021-08-29 03:21:37,229 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 320 transitions. Word has length 38 [2021-08-29 03:21:37,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:37,229 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 320 transitions. [2021-08-29 03:21:37,229 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 03:21:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 320 transitions. [2021-08-29 03:21:37,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-29 03:21:37,231 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:37,231 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 03:21:37,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 03:21:37,231 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:37,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:37,232 INFO L82 PathProgramCache]: Analyzing trace with hash -596933037, now seen corresponding path program 1 times [2021-08-29 03:21:37,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:37,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70443058] [2021-08-29 03:21:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:37,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:37,325 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 03:21:37,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:37,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70443058] [2021-08-29 03:21:37,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70443058] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:37,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:37,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:21:37,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880342343] [2021-08-29 03:21:37,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:21:37,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:37,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:21:37,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:21:37,327 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 03:21:37,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:37,717 INFO L93 Difference]: Finished difference Result 420 states and 629 transitions. [2021-08-29 03:21:37,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:21:37,719 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 03:21:37,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:37,721 INFO L225 Difference]: With dead ends: 420 [2021-08-29 03:21:37,721 INFO L226 Difference]: Without dead ends: 315 [2021-08-29 03:21:37,722 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:21:37,722 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 123 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 306.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 373.71ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:37,723 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 0 Invalid, 482 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [4 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 373.71ms Time] [2021-08-29 03:21:37,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-08-29 03:21:37,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2021-08-29 03:21:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.484076433121019) internal successors, (466), 314 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 03:21:37,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 466 transitions. [2021-08-29 03:21:37,736 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 466 transitions. Word has length 53 [2021-08-29 03:21:37,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:37,737 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 466 transitions. [2021-08-29 03:21:37,737 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 03:21:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 466 transitions. [2021-08-29 03:21:37,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-29 03:21:37,740 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:37,740 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 03:21:37,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 03:21:37,741 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:37,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:37,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1173568974, now seen corresponding path program 1 times [2021-08-29 03:21:37,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:37,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562064924] [2021-08-29 03:21:37,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:37,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:37,843 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 03:21:37,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:37,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562064924] [2021-08-29 03:21:37,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562064924] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:37,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:37,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:37,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003252737] [2021-08-29 03:21:37,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:37,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:37,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:37,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:37,845 INFO L87 Difference]: Start difference. First operand 315 states and 466 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 03:21:38,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:38,502 INFO L93 Difference]: Finished difference Result 806 states and 1197 transitions. [2021-08-29 03:21:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:38,503 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 03:21:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:38,505 INFO L225 Difference]: With dead ends: 806 [2021-08-29 03:21:38,505 INFO L226 Difference]: Without dead ends: 501 [2021-08-29 03:21:38,510 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.68ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:38,510 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 97 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 507.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.55ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 628.26ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:38,511 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 0 Invalid, 807 Unknown, 0 Unchecked, 2.55ms Time], IncrementalHoareTripleChecker [8 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 628.26ms Time] [2021-08-29 03:21:38,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-08-29 03:21:38,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 365. [2021-08-29 03:21:38,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.5164835164835164) internal successors, (552), 364 states have internal predecessors, (552), 0 states have call successors, (0), 0 states 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 03:21:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 552 transitions. [2021-08-29 03:21:38,540 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 552 transitions. Word has length 71 [2021-08-29 03:21:38,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:38,540 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 552 transitions. [2021-08-29 03:21:38,540 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 03:21:38,541 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 552 transitions. [2021-08-29 03:21:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-29 03:21:38,543 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:38,543 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 03:21:38,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 03:21:38,544 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:38,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:38,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1307582480, now seen corresponding path program 1 times [2021-08-29 03:21:38,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:38,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017661455] [2021-08-29 03:21:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:38,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:38,608 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 03:21:38,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:38,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017661455] [2021-08-29 03:21:38,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017661455] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:38,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:38,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:38,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046557721] [2021-08-29 03:21:38,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:38,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:38,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:38,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:38,610 INFO L87 Difference]: Start difference. First operand 365 states and 552 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 03:21:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:39,109 INFO L93 Difference]: Finished difference Result 806 states and 1218 transitions. [2021-08-29 03:21:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:39,109 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 03:21:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:39,111 INFO L225 Difference]: With dead ends: 806 [2021-08-29 03:21:39,111 INFO L226 Difference]: Without dead ends: 451 [2021-08-29 03:21:39,111 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.07ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:39,112 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 401.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.92ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 476.65ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:39,112 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 648 Unknown, 0 Unchecked, 1.92ms Time], IncrementalHoareTripleChecker [6 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 476.65ms Time] [2021-08-29 03:21:39,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-08-29 03:21:39,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 405. [2021-08-29 03:21:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 1.5346534653465347) internal successors, (620), 404 states have internal predecessors, (620), 0 states have call successors, (0), 0 states 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 03:21:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 620 transitions. [2021-08-29 03:21:39,121 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 620 transitions. Word has length 71 [2021-08-29 03:21:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:39,121 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 620 transitions. [2021-08-29 03:21:39,121 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 03:21:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 620 transitions. [2021-08-29 03:21:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-29 03:21:39,122 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:39,123 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 03:21:39,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 03:21:39,123 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:39,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:39,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2025585655, now seen corresponding path program 1 times [2021-08-29 03:21:39,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:39,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999387151] [2021-08-29 03:21:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:39,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:39,213 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 03:21:39,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:39,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999387151] [2021-08-29 03:21:39,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999387151] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:39,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:39,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:39,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529276003] [2021-08-29 03:21:39,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:39,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:39,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:39,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:39,221 INFO L87 Difference]: Start difference. First operand 405 states and 620 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 03:21:39,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:39,866 INFO L93 Difference]: Finished difference Result 928 states and 1409 transitions. [2021-08-29 03:21:39,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:39,866 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 03:21:39,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:39,868 INFO L225 Difference]: With dead ends: 928 [2021-08-29 03:21:39,868 INFO L226 Difference]: Without dead ends: 533 [2021-08-29 03:21:39,869 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:39,869 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 91 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 518.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.35ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 614.20ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:39,869 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 0 Invalid, 794 Unknown, 0 Unchecked, 2.35ms Time], IncrementalHoareTripleChecker [8 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 614.20ms Time] [2021-08-29 03:21:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-08-29 03:21:39,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 407. [2021-08-29 03:21:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.5320197044334976) internal successors, (622), 406 states have internal predecessors, (622), 0 states have call successors, (0), 0 states 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 03:21:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 622 transitions. [2021-08-29 03:21:39,877 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 622 transitions. Word has length 72 [2021-08-29 03:21:39,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:39,877 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 622 transitions. [2021-08-29 03:21:39,877 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 03:21:39,877 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 622 transitions. [2021-08-29 03:21:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:21:39,878 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:39,878 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 03:21:39,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 03:21:39,879 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:39,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:39,879 INFO L82 PathProgramCache]: Analyzing trace with hash 703880522, now seen corresponding path program 2 times [2021-08-29 03:21:39,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:39,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070062207] [2021-08-29 03:21:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:39,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:39,933 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 03:21:39,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:39,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070062207] [2021-08-29 03:21:39,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070062207] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:39,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:39,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:39,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361295498] [2021-08-29 03:21:39,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:39,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:39,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:39,936 INFO L87 Difference]: Start difference. First operand 407 states and 622 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 03:21:40,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:40,585 INFO L93 Difference]: Finished difference Result 928 states and 1407 transitions. [2021-08-29 03:21:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:40,586 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 03:21:40,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:40,587 INFO L225 Difference]: With dead ends: 928 [2021-08-29 03:21:40,587 INFO L226 Difference]: Without dead ends: 531 [2021-08-29 03:21:40,588 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.54ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:40,588 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 104 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 517.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.99ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 625.98ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:40,589 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 0 Invalid, 789 Unknown, 0 Unchecked, 1.99ms Time], IncrementalHoareTripleChecker [8 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 625.98ms Time] [2021-08-29 03:21:40,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-08-29 03:21:40,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 407. [2021-08-29 03:21:40,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.5270935960591132) internal successors, (620), 406 states have internal predecessors, (620), 0 states have call successors, (0), 0 states 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 03:21:40,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 620 transitions. [2021-08-29 03:21:40,596 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 620 transitions. Word has length 85 [2021-08-29 03:21:40,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:40,597 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 620 transitions. [2021-08-29 03:21:40,597 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 03:21:40,597 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 620 transitions. [2021-08-29 03:21:40,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:21:40,598 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:40,598 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 03:21:40,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 03:21:40,598 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:40,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:40,599 INFO L82 PathProgramCache]: Analyzing trace with hash -405099924, now seen corresponding path program 1 times [2021-08-29 03:21:40,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:40,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214075536] [2021-08-29 03:21:40,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:40,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:40,640 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 03:21:40,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:40,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214075536] [2021-08-29 03:21:40,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214075536] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:40,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:40,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:40,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485943314] [2021-08-29 03:21:40,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:40,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:40,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:40,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:40,642 INFO L87 Difference]: Start difference. First operand 407 states and 620 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 03:21:41,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:41,174 INFO L93 Difference]: Finished difference Result 928 states and 1403 transitions. [2021-08-29 03:21:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:41,175 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 03:21:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:41,176 INFO L225 Difference]: With dead ends: 928 [2021-08-29 03:21:41,176 INFO L226 Difference]: Without dead ends: 531 [2021-08-29 03:21:41,177 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:41,177 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 102 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 418.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.94ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 507.37ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:41,177 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 0 Invalid, 787 Unknown, 0 Unchecked, 1.94ms Time], IncrementalHoareTripleChecker [8 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 507.37ms Time] [2021-08-29 03:21:41,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-08-29 03:21:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 407. [2021-08-29 03:21:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.522167487684729) internal successors, (618), 406 states have internal predecessors, (618), 0 states have call successors, (0), 0 states 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 03:21:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 618 transitions. [2021-08-29 03:21:41,186 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 618 transitions. Word has length 85 [2021-08-29 03:21:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:41,187 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 618 transitions. [2021-08-29 03:21:41,187 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 03:21:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 618 transitions. [2021-08-29 03:21:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:21:41,188 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:41,189 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 03:21:41,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 03:21:41,190 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:41,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:41,191 INFO L82 PathProgramCache]: Analyzing trace with hash -325478776, now seen corresponding path program 2 times [2021-08-29 03:21:41,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:41,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186146886] [2021-08-29 03:21:41,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:41,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:41,270 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 03:21:41,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:41,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186146886] [2021-08-29 03:21:41,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186146886] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:41,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:41,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:41,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706815892] [2021-08-29 03:21:41,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:41,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:41,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:41,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:41,273 INFO L87 Difference]: Start difference. First operand 407 states and 618 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 03:21:41,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:41,750 INFO L93 Difference]: Finished difference Result 848 states and 1278 transitions. [2021-08-29 03:21:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:41,751 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 03:21:41,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:41,752 INFO L225 Difference]: With dead ends: 848 [2021-08-29 03:21:41,752 INFO L226 Difference]: Without dead ends: 451 [2021-08-29 03:21:41,753 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.16ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:41,753 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 392.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.62ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 458.68ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:41,753 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 643 Unknown, 0 Unchecked, 1.62ms Time], IncrementalHoareTripleChecker [6 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 458.68ms Time] [2021-08-29 03:21:41,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-08-29 03:21:41,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 407. [2021-08-29 03:21:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.5172413793103448) internal successors, (616), 406 states have internal predecessors, (616), 0 states have call successors, (0), 0 states 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 03:21:41,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 616 transitions. [2021-08-29 03:21:41,761 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 616 transitions. Word has length 85 [2021-08-29 03:21:41,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:41,761 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 616 transitions. [2021-08-29 03:21:41,761 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 03:21:41,762 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 616 transitions. [2021-08-29 03:21:41,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:21:41,762 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:41,763 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 03:21:41,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 03:21:41,763 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:41,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:41,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1434459222, now seen corresponding path program 1 times [2021-08-29 03:21:41,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:41,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206589972] [2021-08-29 03:21:41,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:41,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:41,803 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 03:21:41,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:41,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206589972] [2021-08-29 03:21:41,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206589972] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:41,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:41,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:41,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387613584] [2021-08-29 03:21:41,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:41,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:41,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:41,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:41,805 INFO L87 Difference]: Start difference. First operand 407 states and 616 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 03:21:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:42,256 INFO L93 Difference]: Finished difference Result 848 states and 1274 transitions. [2021-08-29 03:21:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:42,257 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 03:21:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:42,258 INFO L225 Difference]: With dead ends: 848 [2021-08-29 03:21:42,258 INFO L226 Difference]: Without dead ends: 451 [2021-08-29 03:21:42,259 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.90ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:42,260 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 365.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.45ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 432.43ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:42,261 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 641 Unknown, 0 Unchecked, 1.45ms Time], IncrementalHoareTripleChecker [6 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 432.43ms Time] [2021-08-29 03:21:42,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-08-29 03:21:42,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 407. [2021-08-29 03:21:42,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.5123152709359606) internal successors, (614), 406 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 03:21:42,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 614 transitions. [2021-08-29 03:21:42,268 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 614 transitions. Word has length 85 [2021-08-29 03:21:42,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:42,268 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 614 transitions. [2021-08-29 03:21:42,268 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 03:21:42,268 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 614 transitions. [2021-08-29 03:21:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-29 03:21:42,269 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:42,270 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 03:21:42,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 03:21:42,270 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:42,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:42,270 INFO L82 PathProgramCache]: Analyzing trace with hash 381197251, now seen corresponding path program 1 times [2021-08-29 03:21:42,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:42,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101558366] [2021-08-29 03:21:42,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:42,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:42,322 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 03:21:42,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:42,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101558366] [2021-08-29 03:21:42,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101558366] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:42,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:42,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:42,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095567730] [2021-08-29 03:21:42,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:42,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:42,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:42,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:42,324 INFO L87 Difference]: Start difference. First operand 407 states and 614 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 03:21:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:42,939 INFO L93 Difference]: Finished difference Result 928 states and 1391 transitions. [2021-08-29 03:21:42,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:42,940 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 03:21:42,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:42,942 INFO L225 Difference]: With dead ends: 928 [2021-08-29 03:21:42,942 INFO L226 Difference]: Without dead ends: 531 [2021-08-29 03:21:42,942 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.44ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:42,943 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 100 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 461.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.85ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 593.53ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:42,943 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 0 Invalid, 785 Unknown, 0 Unchecked, 1.85ms Time], IncrementalHoareTripleChecker [8 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 593.53ms Time] [2021-08-29 03:21:42,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-08-29 03:21:42,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 407. [2021-08-29 03:21:42,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.5073891625615763) internal successors, (612), 406 states have internal predecessors, (612), 0 states have call successors, (0), 0 states 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 03:21:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 612 transitions. [2021-08-29 03:21:42,954 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 612 transitions. Word has length 86 [2021-08-29 03:21:42,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:42,954 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 612 transitions. [2021-08-29 03:21:42,954 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 03:21:42,954 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 612 transitions. [2021-08-29 03:21:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-29 03:21:42,958 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:42,958 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 03:21:42,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 03:21:42,959 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:42,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:42,959 INFO L82 PathProgramCache]: Analyzing trace with hash 681258334, now seen corresponding path program 1 times [2021-08-29 03:21:42,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:42,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659784081] [2021-08-29 03:21:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:42,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:43,005 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 03:21:43,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:43,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659784081] [2021-08-29 03:21:43,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659784081] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:43,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:43,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:43,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953941297] [2021-08-29 03:21:43,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:43,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:43,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:43,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:43,007 INFO L87 Difference]: Start difference. First operand 407 states and 612 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 03:21:43,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:43,561 INFO L93 Difference]: Finished difference Result 783 states and 1168 transitions. [2021-08-29 03:21:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:43,562 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 03:21:43,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:43,563 INFO L225 Difference]: With dead ends: 783 [2021-08-29 03:21:43,563 INFO L226 Difference]: Without dead ends: 531 [2021-08-29 03:21:43,564 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.73ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:43,564 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 455.07ms 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, 534.91ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:43,564 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 783 Unknown, 0 Unchecked, 1.40ms Time], IncrementalHoareTripleChecker [8 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 534.91ms Time] [2021-08-29 03:21:43,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-08-29 03:21:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 407. [2021-08-29 03:21:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.5024630541871922) internal successors, (610), 406 states have internal predecessors, (610), 0 states have call successors, (0), 0 states 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 03:21:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 610 transitions. [2021-08-29 03:21:43,572 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 610 transitions. Word has length 86 [2021-08-29 03:21:43,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:43,572 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 610 transitions. [2021-08-29 03:21:43,572 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 03:21:43,573 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 610 transitions. [2021-08-29 03:21:43,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-29 03:21:43,573 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:43,574 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 03:21:43,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 03:21:43,574 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:43,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:43,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1464169915, now seen corresponding path program 1 times [2021-08-29 03:21:43,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:43,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628398538] [2021-08-29 03:21:43,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:43,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:43,618 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 03:21:43,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:43,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628398538] [2021-08-29 03:21:43,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628398538] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:43,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:43,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:43,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331576383] [2021-08-29 03:21:43,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:43,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:43,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:43,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:43,620 INFO L87 Difference]: Start difference. First operand 407 states and 610 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 03:21:44,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:44,058 INFO L93 Difference]: Finished difference Result 848 states and 1262 transitions. [2021-08-29 03:21:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:44,058 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 03:21:44,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:44,060 INFO L225 Difference]: With dead ends: 848 [2021-08-29 03:21:44,060 INFO L226 Difference]: Without dead ends: 451 [2021-08-29 03:21:44,060 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.34ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:44,061 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 359.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.14ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 421.73ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:44,061 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 639 Unknown, 0 Unchecked, 1.14ms Time], IncrementalHoareTripleChecker [6 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 421.73ms Time] [2021-08-29 03:21:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-08-29 03:21:44,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 407. [2021-08-29 03:21:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.4975369458128078) internal successors, (608), 406 states have internal predecessors, (608), 0 states have call successors, (0), 0 states 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 03:21:44,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 608 transitions. [2021-08-29 03:21:44,069 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 608 transitions. Word has length 86 [2021-08-29 03:21:44,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:44,069 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 608 transitions. [2021-08-29 03:21:44,069 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 03:21:44,069 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 608 transitions. [2021-08-29 03:21:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-29 03:21:44,070 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:44,070 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 03:21:44,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 03:21:44,071 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:44,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:44,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1164108832, now seen corresponding path program 1 times [2021-08-29 03:21:44,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:44,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704812901] [2021-08-29 03:21:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:44,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:44,133 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 03:21:44,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:44,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704812901] [2021-08-29 03:21:44,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704812901] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:44,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:44,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:44,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654016981] [2021-08-29 03:21:44,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:44,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:44,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:44,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:44,135 INFO L87 Difference]: Start difference. First operand 407 states and 608 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 03:21:44,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:44,580 INFO L93 Difference]: Finished difference Result 703 states and 1041 transitions. [2021-08-29 03:21:44,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:44,580 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 03:21:44,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:44,581 INFO L225 Difference]: With dead ends: 703 [2021-08-29 03:21:44,581 INFO L226 Difference]: Without dead ends: 451 [2021-08-29 03:21:44,582 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:44,582 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 367.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.14ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 428.62ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:44,582 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 637 Unknown, 0 Unchecked, 1.14ms Time], IncrementalHoareTripleChecker [6 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 428.62ms Time] [2021-08-29 03:21:44,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-08-29 03:21:44,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 407. [2021-08-29 03:21:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.4926108374384237) internal successors, (606), 406 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:21:44,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 606 transitions. [2021-08-29 03:21:44,589 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 606 transitions. Word has length 86 [2021-08-29 03:21:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:44,590 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 606 transitions. [2021-08-29 03:21:44,590 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 03:21:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 606 transitions. [2021-08-29 03:21:44,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-29 03:21:44,591 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:44,591 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 03:21:44,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 03:21:44,591 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:44,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:44,592 INFO L82 PathProgramCache]: Analyzing trace with hash -956813465, now seen corresponding path program 1 times [2021-08-29 03:21:44,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:44,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378803194] [2021-08-29 03:21:44,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:44,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:44,628 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 03:21:44,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:44,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378803194] [2021-08-29 03:21:44,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378803194] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:44,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:44,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:44,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374468814] [2021-08-29 03:21:44,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:44,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:44,630 INFO L87 Difference]: Start difference. First operand 407 states and 606 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 03:21:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:45,284 INFO L93 Difference]: Finished difference Result 928 states and 1375 transitions. [2021-08-29 03:21:45,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:45,285 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 03:21:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:45,286 INFO L225 Difference]: With dead ends: 928 [2021-08-29 03:21:45,287 INFO L226 Difference]: Without dead ends: 531 [2021-08-29 03:21:45,287 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.29ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:45,288 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 97 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 529.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.40ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 629.48ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:45,288 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 0 Invalid, 781 Unknown, 0 Unchecked, 1.40ms Time], IncrementalHoareTripleChecker [8 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 629.48ms Time] [2021-08-29 03:21:45,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-08-29 03:21:45,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 407. [2021-08-29 03:21:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.4876847290640394) internal successors, (604), 406 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 03:21:45,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 604 transitions. [2021-08-29 03:21:45,297 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 604 transitions. Word has length 87 [2021-08-29 03:21:45,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:45,298 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 604 transitions. [2021-08-29 03:21:45,298 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 03:21:45,298 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 604 transitions. [2021-08-29 03:21:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-29 03:21:45,299 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:45,300 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 03:21:45,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-29 03:21:45,300 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:45,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:45,301 INFO L82 PathProgramCache]: Analyzing trace with hash 2048176167, now seen corresponding path program 1 times [2021-08-29 03:21:45,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:45,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483627932] [2021-08-29 03:21:45,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:45,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:45,343 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 03:21:45,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:45,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483627932] [2021-08-29 03:21:45,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483627932] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:45,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:45,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:45,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103934660] [2021-08-29 03:21:45,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:45,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:45,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:45,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:45,345 INFO L87 Difference]: Start difference. First operand 407 states and 604 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 03:21:45,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:45,920 INFO L93 Difference]: Finished difference Result 777 states and 1149 transitions. [2021-08-29 03:21:45,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:45,921 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 03:21:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:45,922 INFO L225 Difference]: With dead ends: 777 [2021-08-29 03:21:45,922 INFO L226 Difference]: Without dead ends: 525 [2021-08-29 03:21:45,923 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.52ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:45,923 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 91 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 484.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.24ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 559.21ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:45,923 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 0 Invalid, 769 Unknown, 0 Unchecked, 1.24ms Time], IncrementalHoareTripleChecker [7 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 559.21ms Time] [2021-08-29 03:21:45,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-08-29 03:21:45,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 407. [2021-08-29 03:21:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.4827586206896552) internal successors, (602), 406 states have internal predecessors, (602), 0 states have call successors, (0), 0 states 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 03:21:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 602 transitions. [2021-08-29 03:21:45,931 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 602 transitions. Word has length 87 [2021-08-29 03:21:45,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:45,931 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 602 transitions. [2021-08-29 03:21:45,931 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 03:21:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 602 transitions. [2021-08-29 03:21:45,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-29 03:21:45,932 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:45,932 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 03:21:45,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 03:21:45,933 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:45,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:45,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1966346533, now seen corresponding path program 1 times [2021-08-29 03:21:45,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:45,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034198363] [2021-08-29 03:21:45,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:45,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:45,970 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 03:21:45,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:45,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034198363] [2021-08-29 03:21:45,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034198363] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:45,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:45,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:45,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374707610] [2021-08-29 03:21:45,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:45,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:45,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:45,972 INFO L87 Difference]: Start difference. First operand 407 states and 602 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 03:21:46,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:46,420 INFO L93 Difference]: Finished difference Result 848 states and 1246 transitions. [2021-08-29 03:21:46,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:46,421 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 03:21:46,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:46,422 INFO L225 Difference]: With dead ends: 848 [2021-08-29 03:21:46,422 INFO L226 Difference]: Without dead ends: 451 [2021-08-29 03:21:46,422 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 03:21:46,423 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 363.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.08ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 433.50ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:46,423 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 635 Unknown, 0 Unchecked, 1.08ms Time], IncrementalHoareTripleChecker [6 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 433.50ms Time] [2021-08-29 03:21:46,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-08-29 03:21:46,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 407. [2021-08-29 03:21:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.477832512315271) internal successors, (600), 406 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 03:21:46,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 600 transitions. [2021-08-29 03:21:46,430 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 600 transitions. Word has length 87 [2021-08-29 03:21:46,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:46,430 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 600 transitions. [2021-08-29 03:21:46,431 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 03:21:46,431 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 600 transitions. [2021-08-29 03:21:46,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-29 03:21:46,432 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:46,432 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 03:21:46,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-29 03:21:46,432 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:46,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:46,432 INFO L82 PathProgramCache]: Analyzing trace with hash 676368869, now seen corresponding path program 1 times [2021-08-29 03:21:46,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:46,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083872120] [2021-08-29 03:21:46,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:46,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:46,472 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 03:21:46,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:46,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083872120] [2021-08-29 03:21:46,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083872120] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:46,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:46,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:46,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414558774] [2021-08-29 03:21:46,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:46,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:46,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:46,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:46,474 INFO L87 Difference]: Start difference. First operand 407 states and 600 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 03:21:46,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:46,949 INFO L93 Difference]: Finished difference Result 697 states and 1022 transitions. [2021-08-29 03:21:46,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:46,950 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 03:21:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:46,951 INFO L225 Difference]: With dead ends: 697 [2021-08-29 03:21:46,951 INFO L226 Difference]: Without dead ends: 445 [2021-08-29 03:21:46,951 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.92ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:46,952 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 391.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.06ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 460.71ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:46,952 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 623 Unknown, 0 Unchecked, 1.06ms Time], IncrementalHoareTripleChecker [5 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 460.71ms Time] [2021-08-29 03:21:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-08-29 03:21:46,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 407. [2021-08-29 03:21:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.4729064039408868) internal successors, (598), 406 states have internal predecessors, (598), 0 states have call successors, (0), 0 states 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 03:21:46,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 598 transitions. [2021-08-29 03:21:46,959 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 598 transitions. Word has length 87 [2021-08-29 03:21:46,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:46,959 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 598 transitions. [2021-08-29 03:21:46,959 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 03:21:46,959 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 598 transitions. [2021-08-29 03:21:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-29 03:21:46,960 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:46,960 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 03:21:46,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-29 03:21:46,960 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:46,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:46,960 INFO L82 PathProgramCache]: Analyzing trace with hash 571107934, now seen corresponding path program 1 times [2021-08-29 03:21:46,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:46,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024933952] [2021-08-29 03:21:46,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:46,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:46,995 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 03:21:46,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:46,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024933952] [2021-08-29 03:21:46,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024933952] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:46,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:46,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:46,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999179015] [2021-08-29 03:21:46,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:46,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:46,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:46,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:46,998 INFO L87 Difference]: Start difference. First operand 407 states and 598 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 03:21:47,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:47,475 INFO L93 Difference]: Finished difference Result 904 states and 1330 transitions. [2021-08-29 03:21:47,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:47,476 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 03:21:47,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:47,477 INFO L225 Difference]: With dead ends: 904 [2021-08-29 03:21:47,477 INFO L226 Difference]: Without dead ends: 507 [2021-08-29 03:21:47,478 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.83ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:47,478 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 85 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 386.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.03ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 462.26ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:47,478 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 0 Invalid, 741 Unknown, 0 Unchecked, 1.03ms Time], IncrementalHoareTripleChecker [4 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 462.26ms Time] [2021-08-29 03:21:47,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-08-29 03:21:47,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 407. [2021-08-29 03:21:47,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.4679802955665024) internal successors, (596), 406 states have internal predecessors, (596), 0 states have call successors, (0), 0 states 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 03:21:47,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 596 transitions. [2021-08-29 03:21:47,485 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 596 transitions. Word has length 88 [2021-08-29 03:21:47,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:47,485 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 596 transitions. [2021-08-29 03:21:47,486 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 03:21:47,486 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 596 transitions. [2021-08-29 03:21:47,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-29 03:21:47,487 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:47,487 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 03:21:47,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-29 03:21:47,487 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:47,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:47,488 INFO L82 PathProgramCache]: Analyzing trace with hash 994754656, now seen corresponding path program 1 times [2021-08-29 03:21:47,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:47,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914306863] [2021-08-29 03:21:47,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:47,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:47,533 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 03:21:47,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:47,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914306863] [2021-08-29 03:21:47,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914306863] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:47,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:47,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:47,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167413896] [2021-08-29 03:21:47,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:47,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:47,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:47,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:47,535 INFO L87 Difference]: Start difference. First operand 407 states and 596 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 03:21:47,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:47,974 INFO L93 Difference]: Finished difference Result 824 states and 1205 transitions. [2021-08-29 03:21:47,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:47,974 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 03:21:47,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:47,975 INFO L225 Difference]: With dead ends: 824 [2021-08-29 03:21:47,975 INFO L226 Difference]: Without dead ends: 427 [2021-08-29 03:21:47,976 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:47,976 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 368.30ms 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, 426.66ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:47,976 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 595 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [2 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 426.66ms Time] [2021-08-29 03:21:47,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-08-29 03:21:47,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 407. [2021-08-29 03:21:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.4630541871921183) internal successors, (594), 406 states have internal predecessors, (594), 0 states have call successors, (0), 0 states 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 03:21:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 594 transitions. [2021-08-29 03:21:47,982 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 594 transitions. Word has length 88 [2021-08-29 03:21:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:47,983 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 594 transitions. [2021-08-29 03:21:47,983 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 03:21:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 594 transitions. [2021-08-29 03:21:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-29 03:21:47,984 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:47,984 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 03:21:47,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-29 03:21:47,984 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:47,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:47,985 INFO L82 PathProgramCache]: Analyzing trace with hash -433365501, now seen corresponding path program 1 times [2021-08-29 03:21:47,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:47,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386798558] [2021-08-29 03:21:47,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:47,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:48,022 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 03:21:48,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:48,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386798558] [2021-08-29 03:21:48,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386798558] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:48,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:48,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:21:48,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610495845] [2021-08-29 03:21:48,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:48,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:48,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:48,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:48,025 INFO L87 Difference]: Start difference. First operand 407 states and 594 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 03:21:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:48,544 INFO L93 Difference]: Finished difference Result 904 states and 1322 transitions. [2021-08-29 03:21:48,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:48,544 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 03:21:48,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:48,545 INFO L225 Difference]: With dead ends: 904 [2021-08-29 03:21:48,546 INFO L226 Difference]: Without dead ends: 507 [2021-08-29 03:21:48,546 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.73ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:21:48,547 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 79 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 424.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 504.07ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:48,547 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 0 Invalid, 741 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [4 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 504.07ms Time] [2021-08-29 03:21:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-08-29 03:21:48,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 407. [2021-08-29 03:21:48,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.458128078817734) internal successors, (592), 406 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 03:21:48,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 592 transitions. [2021-08-29 03:21:48,553 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 592 transitions. Word has length 89 [2021-08-29 03:21:48,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:48,553 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 592 transitions. [2021-08-29 03:21:48,553 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 03:21:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 592 transitions. [2021-08-29 03:21:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-29 03:21:48,554 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:48,555 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 03:21:48,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-29 03:21:48,555 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:48,555 INFO L82 PathProgramCache]: Analyzing trace with hash -185219007, now seen corresponding path program 1 times [2021-08-29 03:21:48,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:48,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848928877] [2021-08-29 03:21:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:48,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:48,584 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 03:21:48,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:48,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848928877] [2021-08-29 03:21:48,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848928877] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:48,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:48,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:21:48,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931301064] [2021-08-29 03:21:48,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:21:48,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:48,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:21:48,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:21:48,586 INFO L87 Difference]: Start difference. First operand 407 states and 592 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 03:21:48,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:48,980 INFO L93 Difference]: Finished difference Result 805 states and 1178 transitions. [2021-08-29 03:21:48,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:21:48,981 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 03:21:48,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:48,982 INFO L225 Difference]: With dead ends: 805 [2021-08-29 03:21:48,982 INFO L226 Difference]: Without dead ends: 555 [2021-08-29 03:21:48,982 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:21:48,983 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 122 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 318.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.44ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 381.09ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:48,983 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 0 Invalid, 491 Unknown, 0 Unchecked, 0.44ms Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 381.09ms Time] [2021-08-29 03:21:48,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2021-08-29 03:21:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2021-08-29 03:21:48,989 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 03:21:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 805 transitions. [2021-08-29 03:21:48,990 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 805 transitions. Word has length 89 [2021-08-29 03:21:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:48,991 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 805 transitions. [2021-08-29 03:21:48,991 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 03:21:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 805 transitions. [2021-08-29 03:21:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-08-29 03:21:48,992 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:48,992 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 03:21:48,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-29 03:21:48,992 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:48,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:48,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1027809079, now seen corresponding path program 1 times [2021-08-29 03:21:48,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:48,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606917559] [2021-08-29 03:21:48,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:48,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:49,031 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 03:21:49,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:21:49,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606917559] [2021-08-29 03:21:49,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606917559] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:49,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:49,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:21:49,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792362126] [2021-08-29 03:21:49,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:21:49,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:21:49,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:21:49,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:21:49,032 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 03:21:49,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:49,327 INFO L93 Difference]: Finished difference Result 1102 states and 1605 transitions. [2021-08-29 03:21:49,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:21:49,328 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 03:21:49,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:49,330 INFO L225 Difference]: With dead ends: 1102 [2021-08-29 03:21:49,330 INFO L226 Difference]: Without dead ends: 704 [2021-08-29 03:21:49,330 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:21:49,331 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 138 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 237.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.41ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 284.47ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:49,331 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 0 Invalid, 331 Unknown, 0 Unchecked, 0.41ms Time], IncrementalHoareTripleChecker [6 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 284.47ms Time] [2021-08-29 03:21:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-08-29 03:21:49,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2021-08-29 03:21:49,339 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 03:21:49,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1023 transitions. [2021-08-29 03:21:49,340 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1023 transitions. Word has length 91 [2021-08-29 03:21:49,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:49,341 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 1023 transitions. [2021-08-29 03:21:49,341 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 03:21:49,341 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1023 transitions. [2021-08-29 03:21:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-08-29 03:21:49,342 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:49,342 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 03:21:49,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-29 03:21:49,342 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:49,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:49,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1254631592, now seen corresponding path program 1 times [2021-08-29 03:21:49,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:21:49,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501365461] [2021-08-29 03:21:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:49,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:21:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:21:49,462 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 03:21:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:21:49,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 03:21:49,621 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 03:21:49,622 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:21:49,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-29 03:21:49,628 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:21:49,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:21:49 BoogieIcfgContainer [2021-08-29 03:21:49,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:21:49,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:21:49,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:21:49,719 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:21:49,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:21:35" (3/4) ... [2021-08-29 03:21:49,721 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 03:21:49,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:21:49,724 INFO L158 Benchmark]: Toolchain (without parser) took 15007.79ms. Allocated memory was 54.5MB in the beginning and 125.8MB in the end (delta: 71.3MB). Free memory was 29.8MB in the beginning and 89.8MB in the end (delta: -60.0MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-08-29 03:21:49,725 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:21:49,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.31ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 35.4MB in the end (delta: -5.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-08-29 03:21:49,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.29ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 46.1MB in the end (delta: -10.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-08-29 03:21:49,726 INFO L158 Benchmark]: Boogie Preprocessor took 54.45ms. Allocated memory is still 67.1MB. Free memory was 46.1MB in the beginning and 39.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 03:21:49,726 INFO L158 Benchmark]: RCFGBuilder took 450.85ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 30.6MB in the end (delta: 9.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2021-08-29 03:21:49,726 INFO L158 Benchmark]: TraceAbstraction took 13997.48ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 30.0MB in the beginning and 89.8MB in the end (delta: -59.9MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2021-08-29 03:21:49,726 INFO L158 Benchmark]: Witness Printer took 3.21ms. Allocated memory is still 125.8MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:21:49,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.31ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 35.4MB in the end (delta: -5.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.29ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 46.1MB in the end (delta: -10.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.45ms. Allocated memory is still 67.1MB. Free memory was 46.1MB in the beginning and 39.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 450.85ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 30.6MB in the end (delta: 9.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * TraceAbstraction took 13997.48ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 30.0MB in the beginning and 89.8MB in the end (delta: -59.9MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. * Witness Printer took 3.21ms. Allocated memory is still 125.8MB. Free memory is still 89.8MB. 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 1338. 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}] [L1324] COND FALSE !(ret <= 0) [L1329] s->hit VAL [init=1, SSLv3_client_data={6:0}] [L1329] COND FALSE !(s->hit) [L1332] s->state = 4400 VAL [init=1, SSLv3_client_data={6:0}] [L1334] 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 [L1338] EXPR s->s3 [L1338] EXPR (s->s3)->tmp.new_cipher [L1338] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [init=1, SSLv3_client_data={6:0}] [L1338] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1341] ret = __VERIFIER_nondet_int() [L1342] COND TRUE blastFlag == 2 [L1343] 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: 13850.02ms, OverallIterations: 24, TraceHistogramMax: 6, EmptinessCheckTime: 42.44ms, AutomataDifference: 11715.68ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 10.37ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1779 SdHoareTripleChecker+Valid, 11118.76ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1779 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 9289.16ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6314 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14973 IncrementalHoareTripleChecker+Invalid, 15108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 0 mSDtfsCounter, 14973 mSolverCounterSat, 34.50ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 46 SyntacticMatches, 19 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 187.75ms 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: 219.69ms AutomataMinimizationTime, 23 MinimizatonAttempts, 1525 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 84.99ms SsaConstructionTime, 505.38ms SatisfiabilityAnalysisTime, 857.36ms 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 03:21:49,758 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 03:21:51,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:21:51,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:21:51,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:21:51,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:21:51,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:21:51,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:21:51,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:21:51,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:21:51,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:21:51,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:21:51,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:21:51,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:21:51,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:21:51,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:21:51,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:21:51,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:21:51,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:21:51,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:21:51,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:21:51,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:21:51,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:21:51,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:21:51,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:21:51,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:21:51,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:21:51,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:21:51,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:21:51,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:21:51,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:21:51,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:21:51,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:21:51,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:21:51,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:21:51,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:21:51,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:21:51,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:21:51,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:21:51,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:21:51,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:21:51,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:21:51,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 03:21:51,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:21:51,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:21:51,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:21:51,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:21:51,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:21:51,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:21:51,349 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:21:51,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:21:51,349 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:21:51,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:21:51,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:21:51,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:21:51,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:21:51,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:21:51,351 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 03:21:51,351 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 03:21:51,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:21:51,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:21:51,351 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:21:51,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:21:51,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:21:51,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:21:51,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:21:51,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:21:51,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:21:51,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:21:51,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:21:51,353 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 03:21:51,353 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 03:21:51,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:21:51,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:21:51,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 03:21:51,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8334dcb0cdaf6693a0e55f9663f2e64fc956eb05 [2021-08-29 03:21:51,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:21:51,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:21:51,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:21:51,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:21:51,657 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:21:51,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-08-29 03:21:51,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b85d8dc/d7b49e02110741ac847bbde57fc210ef/FLAG85bc8d9dd [2021-08-29 03:21:52,080 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:21:52,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-08-29 03:21:52,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b85d8dc/d7b49e02110741ac847bbde57fc210ef/FLAG85bc8d9dd [2021-08-29 03:21:52,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b85d8dc/d7b49e02110741ac847bbde57fc210ef [2021-08-29 03:21:52,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:21:52,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:21:52,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:21:52,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:21:52,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:21:52,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53817e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52, skipping insertion in model container [2021-08-29 03:21:52,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:21:52,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:21:52,419 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.03.i.cil-1.c[64353,64366] [2021-08-29 03:21:52,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:21:52,441 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:21:52,555 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.03.i.cil-1.c[64353,64366] [2021-08-29 03:21:52,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:21:52,576 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:21:52,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52 WrapperNode [2021-08-29 03:21:52,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:21:52,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:21:52,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:21:52,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:21:52,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:21:52,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:21:52,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:21:52,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:21:52,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:21:52,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:21:52,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:21:52,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:21:52,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (1/1) ... [2021-08-29 03:21:52,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:21:52,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:21:52,725 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 03:21:52,737 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 03:21:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 03:21:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-29 03:21:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:21:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 03:21:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-29 03:21:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-29 03:21:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:21:52,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:21:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 03:21:52,872 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-29 03:21:53,164 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-29 03:21:53,165 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-29 03:21:53,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:21:53,169 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 03:21:53,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:21:53 BoogieIcfgContainer [2021-08-29 03:21:53,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:21:53,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:21:53,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:21:53,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:21:53,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:21:52" (1/3) ... [2021-08-29 03:21:53,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e046c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:21:53, skipping insertion in model container [2021-08-29 03:21:53,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:21:52" (2/3) ... [2021-08-29 03:21:53,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e046c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:21:53, skipping insertion in model container [2021-08-29 03:21:53,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:21:53" (3/3) ... [2021-08-29 03:21:53,179 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-1.c [2021-08-29 03:21:53,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:21:53,183 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 03:21:53,225 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:21:53,230 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 03:21:53,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 03:21:53,249 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 03:21:53,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 03:21:53,261 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:53,261 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 03:21:53,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:53,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:53,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-08-29 03:21:53,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:21:53,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137939082] [2021-08-29 03:21:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:53,273 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:21:53,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:21:53,274 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 03:21:53,275 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 03:21:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:53,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:21:53,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:21:53,536 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 03:21:53,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:21:53,627 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 03:21:53,628 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:21:53,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137939082] [2021-08-29 03:21:53,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137939082] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:53,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:53,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:21:53,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212387984] [2021-08-29 03:21:53,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:53,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:21:53,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:53,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:53,668 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 03:21:56,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:21:56,264 INFO L93 Difference]: Finished difference Result 485 states and 820 transitions. [2021-08-29 03:21:56,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:21:56,269 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 03:21:56,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:21:56,277 INFO L225 Difference]: With dead ends: 485 [2021-08-29 03:21:56,277 INFO L226 Difference]: Without dead ends: 312 [2021-08-29 03:21:56,279 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.04ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:56,281 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 359 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2234.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.13ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2527.56ms IncrementalHoareTripleChecker+Time [2021-08-29 03:21:56,282 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 0 Invalid, 629 Unknown, 0 Unchecked, 9.13ms Time], IncrementalHoareTripleChecker [16 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 2527.56ms Time] [2021-08-29 03:21:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-08-29 03:21:56,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2021-08-29 03:21:56,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 311 states have (on average 1.5016077170418007) internal successors, (467), 311 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 03:21:56,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 467 transitions. [2021-08-29 03:21:56,334 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 467 transitions. Word has length 24 [2021-08-29 03:21:56,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:21:56,335 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 467 transitions. [2021-08-29 03:21:56,335 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 03:21:56,335 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 467 transitions. [2021-08-29 03:21:56,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-29 03:21:56,337 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:21:56,337 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 03:21:56,347 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 03:21:56,546 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 03:21:56,546 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:21:56,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:21:56,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1854239308, now seen corresponding path program 1 times [2021-08-29 03:21:56,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:21:56,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409124443] [2021-08-29 03:21:56,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:21:56,548 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:21:56,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:21:56,553 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 03:21:56,566 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 03:21:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:21:56,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:21:56,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:21:56,767 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 03:21:56,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:21:56,878 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 03:21:56,878 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:21:56,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409124443] [2021-08-29 03:21:56,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409124443] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:21:56,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:21:56,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:21:56,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290643987] [2021-08-29 03:21:56,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:21:56,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:21:56,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:21:56,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:21:56,881 INFO L87 Difference]: Start difference. First operand 312 states and 467 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 03:22:00,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:00,540 INFO L93 Difference]: Finished difference Result 716 states and 1078 transitions. [2021-08-29 03:22:00,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:00,544 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 03:22:00,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:00,547 INFO L225 Difference]: With dead ends: 716 [2021-08-29 03:22:00,547 INFO L226 Difference]: Without dead ends: 512 [2021-08-29 03:22:00,551 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.70ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:00,555 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 267 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3298.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.71ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3613.49ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:00,555 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 0 Invalid, 638 Unknown, 0 Unchecked, 3.71ms Time], IncrementalHoareTripleChecker [10 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 3613.49ms Time] [2021-08-29 03:22:00,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-08-29 03:22:00,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2021-08-29 03:22:00,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 511 states have (on average 1.4951076320939334) internal successors, (764), 511 states have internal predecessors, (764), 0 states have call successors, (0), 0 states 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 03:22:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 764 transitions. [2021-08-29 03:22:00,593 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 764 transitions. Word has length 60 [2021-08-29 03:22:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:00,597 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 764 transitions. [2021-08-29 03:22:00,597 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 03:22:00,597 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 764 transitions. [2021-08-29 03:22:00,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-08-29 03:22:00,604 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:00,604 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 03:22:00,614 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 03:22:00,811 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 03:22:00,814 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:00,814 INFO L82 PathProgramCache]: Analyzing trace with hash 922615118, now seen corresponding path program 1 times [2021-08-29 03:22:00,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:22:00,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133284743] [2021-08-29 03:22:00,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:00,815 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:22:00,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:22:00,816 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 03:22:00,823 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 03:22:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:00,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:22:00,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:22:02,937 INFO L354 Elim1Store]: treesize reduction 182, result has 23.2 percent of original size [2021-08-29 03:22:02,938 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 03:22:03,013 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-08-29 03:22:03,014 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 03:22:03,033 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 03:22:03,194 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 03:22:03,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:22:03,383 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 03:22:03,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:22:03,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133284743] [2021-08-29 03:22:03,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133284743] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:03,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:03,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-29 03:22:03,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097822268] [2021-08-29 03:22:03,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:22:03,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:22:03,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:22:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:22:03,392 INFO L87 Difference]: Start difference. First operand 512 states and 764 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 03:22:06,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:06,436 INFO L93 Difference]: Finished difference Result 1021 states and 1522 transitions. [2021-08-29 03:22:06,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:22:06,437 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 03:22:06,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:06,438 INFO L225 Difference]: With dead ends: 1021 [2021-08-29 03:22:06,438 INFO L226 Difference]: Without dead ends: 516 [2021-08-29 03:22:06,439 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:22:06,440 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2840.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.73ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3014.05ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:06,440 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 498 Unknown, 0 Unchecked, 1.73ms Time], IncrementalHoareTripleChecker [1 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3014.05ms Time] [2021-08-29 03:22:06,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2021-08-29 03:22:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 515. [2021-08-29 03:22:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.4922178988326849) internal successors, (767), 514 states have internal predecessors, (767), 0 states have call successors, (0), 0 states 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 03:22:06,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 767 transitions. [2021-08-29 03:22:06,451 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 767 transitions. Word has length 98 [2021-08-29 03:22:06,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:06,451 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 767 transitions. [2021-08-29 03:22:06,452 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 03:22:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 767 transitions. [2021-08-29 03:22:06,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-08-29 03:22:06,454 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:06,455 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 03:22:06,465 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 03:22:06,660 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 03:22:06,661 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:06,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1354155866, now seen corresponding path program 1 times [2021-08-29 03:22:06,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:22:06,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744356810] [2021-08-29 03:22:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:06,662 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:22:06,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:22:06,667 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 03:22:06,668 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 03:22:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:22:06,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:22:06,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:22:06,964 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 03:22:06,990 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-08-29 03:22:06,991 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 03:22:07,136 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-08-29 03:22:07,136 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 03:22:07,215 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 03:22:07,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:22:07,415 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 03:22:07,415 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:22:07,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744356810] [2021-08-29 03:22:07,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744356810] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:22:07,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:22:07,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2021-08-29 03:22:07,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256982424] [2021-08-29 03:22:07,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 03:22:07,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:22:07,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 03:22:07,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:22:07,418 INFO L87 Difference]: Start difference. First operand 515 states and 767 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 03:22:09,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-08-29 03:22:14,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:22:15,000 INFO L93 Difference]: Finished difference Result 1748 states and 2616 transitions. [2021-08-29 03:22:15,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 03:22:15,000 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 03:22:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:22:15,004 INFO L225 Difference]: With dead ends: 1748 [2021-08-29 03:22:15,004 INFO L226 Difference]: Without dead ends: 1243 [2021-08-29 03:22:15,005 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 56.19ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 03:22:15,005 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 323 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7018.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.71ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7494.70ms IncrementalHoareTripleChecker+Time [2021-08-29 03:22:15,006 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 0 Invalid, 1296 Unknown, 0 Unchecked, 8.71ms Time], IncrementalHoareTripleChecker [65 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 7494.70ms Time] [2021-08-29 03:22:15,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-08-29 03:22:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 618. [2021-08-29 03:22:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 617 states have (on average 1.5235008103727714) internal successors, (940), 617 states have internal predecessors, (940), 0 states have call successors, (0), 0 states 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 03:22:15,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 940 transitions. [2021-08-29 03:22:15,035 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 940 transitions. Word has length 112 [2021-08-29 03:22:15,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:22:15,035 INFO L470 AbstractCegarLoop]: Abstraction has 618 states and 940 transitions. [2021-08-29 03:22:15,035 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 03:22:15,035 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 940 transitions. [2021-08-29 03:22:15,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-08-29 03:22:15,037 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:22:15,040 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 03:22:15,052 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 03:22:15,252 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 03:22:15,253 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:22:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:22:15,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1254631592, now seen corresponding path program 1 times [2021-08-29 03:22:15,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:22:15,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673236897] [2021-08-29 03:22:15,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:22:15,254 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:22:15,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:22:15,256 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 03:22:15,262 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 03:22:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:22:15,606 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 03:22:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:22:16,093 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-29 03:22:16,094 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 03:22:16,095 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:22:16,113 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 03:22:16,297 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 03:22:16,302 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:22:16,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:22:16 BoogieIcfgContainer [2021-08-29 03:22:16,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:22:16,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:22:16,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:22:16,378 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:22:16,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:21:53" (3/4) ... [2021-08-29 03:22:16,381 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 03:22:16,455 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 03:22:16,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:22:16,456 INFO L158 Benchmark]: Toolchain (without parser) took 24355.20ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 45.2MB in the beginning and 35.2MB in the end (delta: 10.0MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2021-08-29 03:22:16,456 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.8MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:22:16,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.92ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 29.5MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 03:22:16,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.16ms. Allocated memory is still 67.1MB. Free memory was 29.5MB in the beginning and 45.7MB in the end (delta: -16.2MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-08-29 03:22:16,456 INFO L158 Benchmark]: Boogie Preprocessor took 39.30ms. Allocated memory is still 67.1MB. Free memory was 45.7MB in the beginning and 39.1MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 03:22:16,457 INFO L158 Benchmark]: RCFGBuilder took 478.60ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 39.1MB in the beginning and 60.2MB in the end (delta: -21.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2021-08-29 03:22:16,457 INFO L158 Benchmark]: TraceAbstraction took 23199.31ms. Allocated memory is still 88.1MB. Free memory was 59.8MB in the beginning and 47.8MB in the end (delta: 12.0MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2021-08-29 03:22:16,457 INFO L158 Benchmark]: Witness Printer took 77.48ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 35.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 03:22:16,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.8MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.92ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 29.5MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.16ms. Allocated memory is still 67.1MB. Free memory was 29.5MB in the beginning and 45.7MB in the end (delta: -16.2MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.30ms. Allocated memory is still 67.1MB. Free memory was 45.7MB in the beginning and 39.1MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 478.60ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 39.1MB in the beginning and 60.2MB in the end (delta: -21.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 23199.31ms. Allocated memory is still 88.1MB. Free memory was 59.8MB in the beginning and 47.8MB in the end (delta: 12.0MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Witness Printer took 77.48ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 35.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. 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}] [L1324] COND FALSE !(ret <= 0) [L1329] s->hit VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1329] COND FALSE !(s->hit) [L1332] s->state = 4400 VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1334] 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 [L1338] EXPR s->s3 [L1338] EXPR (s->s3)->tmp.new_cipher [L1338] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [init=1, SSLv3_client_data={-2147483569:0}] [L1338] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1341] ret = __VERIFIER_nondet_int() [L1342] COND TRUE blastFlag == 2 [L1343] 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: 23076.53ms, OverallIterations: 5, TraceHistogramMax: 6, EmptinessCheckTime: 33.94ms, AutomataDifference: 16962.26ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 10.23ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 956 SdHoareTripleChecker+Valid, 16649.80ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 956 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 15391.42ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1400 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2969 IncrementalHoareTripleChecker+Invalid, 3061 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 0 mSDtfsCounter, 2969 mSolverCounterSat, 23.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 583 GetRequests, 567 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 84.10ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=618occurred 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: 119.10ms AutomataMinimizationTime, 4 MinimizatonAttempts, 626 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 143.75ms SsaConstructionTime, 633.31ms SatisfiabilityAnalysisTime, 3384.05ms 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 03:22:16,510 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...